DOWNLOAD PDF Bobcat 853 853H Operation & Maintenance Manual

Operation & Maintenance Manual

EQUIPPED WITH BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

6724034 (8-98) Revised (6-00)

Printed in U.S.A.

©Bobcat Company 2000

OPERATOR SAFETY WARNINGS WARNING

CORRECT

Operator must have instructions before running the machine.

Untrained operators can cause injury or death.

W-2001-1285

Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.

CORRECT

CORRECT

B-7403

B-6582

Always use the seat bar and fasten seat belt snugly.

Always keep feet on the foot pedals or footrests when operating loader.

Never use loader without operator cab with ROPS and FOPS approval. Fasten your seat belt.

B-10731a Never use the loader without instructions. See machine signs (decals), Operation & Maintenance Manual and Handbook.

WRONG

B-13418

Never use loader as man lift or elevating device for personnel.

WRONG

WRONG

WRONG

B-6578

B-6585

B-6595

Keep bystanders away from work area.

Always carry bucket or attachments as low as possible.

Do not travel or turn with lift arms up.

Load, unload and turn on flat level ground.

WRONG

WRONG

Do not use loader in atmosphere with explosive dust or gas or where exhaust can contact flammable material.

WRONG

B-6587

Never exceed rated operating capacity.

Never carry riders.

B-6594 B-16102

Never leave loader with engine running or with lift arms up.

To park, engage parking brake and put attachment flat on the ground.

B-6591 B-16102

Never modify equipment.

Use only attachments approved

by Bobcat Company for this model loader.

SAFETY EQUIPMENT The Bobcat loader must be equipped with safety items necessary for each job. Ask your dealer for information on the safe use of attachments and accessories.

1. SEAT BELT: Check belt fasteners and check for damaged webbing or buckle.

2. SEAT BAR: When up, it must lock the loader controls.

3. OPERATOR CAB (ROPS and FOPS): It must be on the loader with all fasteners tight.

4. HANDBOOK: Must be in the cab.

5. SAFETY SIGNS (DECALS): Replace if damaged.

6. SAFETY TREADS: Replace if damaged.

7. GRAB HANDLES: Replace if damaged.

8. LIFT ARM SUPPORT DEVICE: Replace if damaged.

9. PARKING BRAKE 10. BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

OSW03-0600

FOREWORD

CONTENTS FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XI

SAFETY

OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-1 PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . PM-1

OPERATING INSTRUCTIONS

SYSTEM SETUP & ANALYSIS. . . . . . . . . . . . . . . . . . . . . . . . . . SA-1 MACHINE SIGN TRANSLATIONS . . . . . . . . . . . . . . . . . . . . . . MST-1 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-1

PREVENTIVE MAINTENANCE

SERVICE CODES

REFERENCE INFORMATION Write the correct information for YOUR Bobcat Loader in the spaces below. Always use these numbers when referring to your Bobcat loader.

MACHINE SIGN TRANSLATIONS

Loader Serial Number Engine Serial Number

SPECIFICATIONS NOTES:

YOUR BOBCAT® DEALER: ADDRESS: PHONE:

Bobcat Company P.O. Box 128 Gwinner, ND 58040-0128 Bobcat Company Europe J. Huysmanslaan 59 B-1651 LOT Belgium

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FOREWORD

FOREWORD This Operation & Maintenance Manual was written to give the owner/operator instructions on the safe operation and maintenance of the Machine Name. READ AND UNDERSTAND THIS OPERATION & MAINTENANCE MANUAL BEFORE OPERATING YOUR Bobcat loader. If you have any questions, see your Bobcat dealer.

BOBCAT COMPANY IS ISO 9001 CERTIFIED . . . . . . . . . . . . . . . . . . . . V REGULAR MAINTENANCE ITEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V MOTOR OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII LOADER SERIAL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII ENGINE SERIAL NUMBER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII

SYSTEM SETUP & ANALYSIS

DELIVERY REPORT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VII BOBCAT LOADER IDENTIFICATION. . . . . . . . . . . . . . . . . . . . . . . . . . . VIII TRANSLATIONS

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BOBCAT COMPANY IS ISO 9001 CERTIFIED

ISO 9001 is a set of international standards that control the processes and procedures which we use to design, develop, manufacture, distribute, and service Bobcat products.

British Standards Institute (BSI) is the Certified Registrar Bobcat chose to assess the Company’s compliance with the ISO 9001 set of standards. The BSI registration certifies that the two Bobcat manufacturing plants and the Bobcat corporate offices (Gwinner, Bismarck & West Fargo) in North Dakota are in compliance with ISO 9001. Only certified assessors, like BSI, can grant registrations.

ISO 9001 means that as a company we say what we do and do what we say. In other words, we have established procedures and policies, and we provide evidence that the procedures and policies are followed.

What does ISO 9001 mean to Bobcat Customers? It means that Bobcat Company produces your Bobcat loader, Excavator, and attachments with strict attention to details, using the latest technology and proven techniques.

CALIFORNIA PROPOSITION 65 WARNING Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects and other reproductive harm.

REGULAR MAINTENANCE ITEMS

ENGINE OIL FILTER (6 Pack) 6659329

BATTERY 665032

FUEL FILTER 6647773

BLACK GOLD, Hydraulic/Hydrostatic (5 Gallons) 6563328

AIR FILTER, OUTER 6598492

RADIATOR CAP 6646678

AIR FILTER, INNER 6598362

PROPYLENE GLYCOL ANTI-FREEZE, Premixed [-34 F (-37C] 6724094

HYDROSTATIC FILTER 6661248

PROPYLENE GLYCOL ANTI-FREEZE, Concentrate 6724354

MOTOR OIL 6657299 15W40 CE/SG (1 QT.) 6657301 10W30 CE/SG (1 QT.) 6657303 30W CE/SG (1 QT.)

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SERIAL NUMBER LOCATIONS

ENGINE SERIAL NUMBER

Always use the serial number of the loader when requesting service information or when ordering parts.

Early or later models (identification made by serial number) may use different parts, or it may be necessary to use a different procedure in doing a specific service operation.

Figure 2

LOADER SERIAL NUMBER Figure 1

P0370

The engine serial number is near the fuel injectin pump on the engine block [Figure 2].

DELIVERY REPORT Figure 3 P0369

The loader serial number plate is located on the inside of the left upright, above the grill [Figure 1].

Explanation of loader Serial Number: XXXX XXXXX Module 2. - Production Sequence (Series) Module 1. - Model / Engine Combination B-16315

1. The four digit Model/Engine Combination Module number identifies the model number and engine combination.

The delivery report must be filled out by the dealer and signed by the owner or operator when the Bobcat loader is delivered. An explanation of the form must be given to the owner. Make sure it is filled out completely [Figure 3].

2. The five digit Production Sequence Number identifies the order which the loader is produced.

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BOBCAT LOADER IDENTIFICATION FRONT LIGHTS (OPTIONAL)

OPERATOR SEAT

REAR AUXILIARY QUICK COUPLERS (OPTIONAL)

GRAB HANDLES SECONDARY QUICK COUPLERS SEAT BELT (OPTIONAL) TILT CYLINDER

FRONT AUXILIARY QUICK COUPLERS (OPTIONAL)

†BUCKET

SAFETY TREAD BUCKET STEPS OPERATOR CAB (ROPS & FOPS)

SEAT BAR

REAR GRILL LIFT ARM LIFT ARM SUPPORT DEVICE REAR LIGHT (OPTIONAL) LIFT CYLINDER REAR DOOR

TAIL LIGHT (OPTIONAL)

* TIRES B-12555a B-13774

▼ OPTIONAL OR FIELD ACCESSORY (Not Standard Equipment) † BUCKET - Several different buckets and other attachments are available from the Bobcat loader. ● ROPS, FOPS - Roll Over Protective Structure, per SAE J1040 and ISO 3471, and Falling Object Protective Structure per SAEJ1043 and ISO 3449, Level I. Level II is available. The Bobcat loader is base-equipped with a standard operator cab as shown. Extra insulated cab is available as an option (Reduced noise level).

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OPTIONS AND ACCESSORIES Model 853 & 853H Bobcat loaders are equipped with the following standard items: Bob-Tach Servo Assist Steering Spark Arrestor Muffler Lift Arm Support Device Operator Cab (with ROPS & FOPS Approval) Bobcat Interlock Control System (BICS™) Seat Belt Seat Bar Parking Brake Gauges/Warning Lights Below is a list of the optional equipment which is available through your Bobcat Loader dealer.

Tires

Hydraulics

8.25-15 6PR

Std.

Front Auxiliary Hydraulics

Opt. & FA (Std. in Europe)

12.00-16.5, Segmented

Opt.

Rear Auxiliary Hydraulics

Opt. & FA

12.00-16.5, 6 PR Flotation

Opt.

12-16.5 8PR Bobcat Heavy Duty Flotation

Opt.

Hydraulic Bucket Positioning

8.00-16 Solid

Opt.

Bucket Positioner On/Off

Opt.

10.00-33 Solid

Opt.

High HP Hyraulics

Opt.

Opt. & FA (Std. in Europe)

Other

Operator Cab Sound Cab (85 dBa)

Opt. (Std. in Europe)

Deluxe Cab. (90 dBa)

Opt.

Catalytic Purifier

FA

Engine Block Heater

FA

Suspension Seat

Opt. & FA (Std. in Europe)

Single Point Lift

FA

Operating Lights (Front & Rear)

Opt. & FA (Std. in Europe)

Four Point Lift

FA

Locking Fuel Cap

FA

FA (Std. in Europe)

Radiator Screen Kit

FA

Back-up Alarm

Opt. & FA

Rear Door Bumpers

FA

Heated Enclosed Cab

Opt. & FA

Tailgate Lock

FA (Std. in Europe)

Tool Box

FA (Std. in Europe)

Horn

Top Window

Opt. & FA (Std. in Europe)

Rear Window

Opt. & FA (Std. in Europe)

Cab Enclosure Panels

FA

Vinyl Cab Enclosure

FA

Hand Control conversion

FA

Cover Kit (Pedals Area)

FA (Std. in Europe)

Instrumentation Bobcat Opration Sensing System (BOSS®)

Opt.

Cover Kit (Hydraulic Reservoir Area)

FA

Std. = Standard Equipment Opt. = Factory Installed Option FA = Field Accessory

Fire Extinguisher

FA

Specifications subject to change without notice.

Flasher Lights

FA

Strobe or Rotating Beacon Light

FA

3" Seat Belt

FA

Special Applications Kit (Includes Front Door, Top & Rear Windows)

FA

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SAFETY SAFETY INSTRUCTIONS FOR BOBCAT SKID-STEER LOADERS AND ATTACHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XIII SAFETY IS THE OPERATOR’S RESPONSIBILITY . . . . . . . . . XIII

SAFETY

BEFORE OPERATING THE BOBCAT LOADER . . . . . . . . . . . . . .XIV SAFE OPERATION NEEDS A QUALIFIED OPERATOR* . . . . . . .XIV FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XV MACHINE SIGNS (DECALS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XVI

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SAFETY INSTRUCTIONS FOR BOBCAT SKID-STEER LOADERS AND ATTACHMENTS

•

An Operator’s Handbook is fastened to the operator cab of the Loader. It’s brief instructions are convenient to the operator. The Handbook is available from your dealer in an English edition or one of many other languages. See your Bobcat dealer for more information on translated versions.

•

The Safety Manual delivered with the machine gives general safety information.

•

Operator Training Courses are available from your local Bobcat dealer. They provide information for safe and effecient operation of the Bobcat loader and some attachments. The courses are available in English and Spanish versions.

•

Service Safety Training Courses are available from your Bobcat dealer. They provide information for safe and correct servcie procedures.

•

See the ADDITIONAL PUBLICATIONS Page in this manual or your Bobcat dealer for Service and Parts Manuals, printed materials, videos, or training courses available. Also check the Bobcat web site www.bobcat.com

SAFETY IS THE OPERATOR’S RESPONSIBILITY All Bobcat Loaders and attachments are designed to give maximum safety, but no machine design can prevent operator error or carelessness.

The Bobcat skid-steer Loader is highly maneuverable and compact. It is rugged and useful under a wide variety of conditions. This presents an operator with hazards associated with off highway, rough terrain applications, common with Bobcat Loader usage.

The Bobcat Loader has an internal combustion engine with resultant heat and exhaust. All exhaust gasses can kill or cause illness so use the Loader with adequate ventilation. The loader has a spark arrestor exhaust system or muffler which is required for operation in certain areas.

The dealer explains the capabilities and restrictions of the Bobcat Loader and attachment for each application.

The dealer demonstrates the safe operation according to Bobcat instructional materials, which are also available to operators. The dealer can also identify unsafe modifications or use of unapproved attachments. The attachments and buckets are designed for a Rated Operating Capacity (some have restricted lift heights).

They are designed for secure fastening to the Bobcat Loader. The user must check with the dealer, or Bobcat literature, to determine safe loads of materials of specified densities for the loader - attachment combination.

The dealer and owner/operator review the recommended uses of the product when delivered. If the owner/operator will be using the machine for a different application(s) he or she must ask the dealer for recommendations on the new use.

The following publications and training materials provide information on the safe use and maintenance of the Bobcat machine and attachments: •

The Delivery Report is used to assure that complete instructions have been given to the new owner and that the machine and attachment is in safe operating condition.

•

The Operation & Maintenance Manual delivered with the machine or attachment gives operating information as well as routine maintenance and service procedures. It is a part of the machine and can be stored in a container provided on the machine.

Replacement Operation & Maintenance Manuals can be ordered from your Bobcat dealer.

Call Before You Dig 1-888-258-0808

•

Machine signs (decals) instruct on the safe operation and care of your Bobcat machine or attachment. The signs and their locations are shown in the Operation & Maintenance Manual. Replacement signs are available from your Bobcat dealer.

When you call, you will be directed to a location in your state/city for information about buried lines (telephone, cable TV, water, sewer, gas, etc.)

S101-0400

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•

BEFORE OPERATING THE BOBCAT LOADER

Safety Alert Symbol This symbol with a warning statement means: “Warning, be alert! Your safety is involved!”

Carefully read the message that follows.

Check the rules and regulations at your location. The rules may include an employer’s work safety requirements. Regulations may apply to local driving requirements or use of a Slow Moving Vehicle (SMV) emblem. Regulations may identify a hazard such as a utility line.

HAVE TRAINING WITH ACTUAL OPERATION

WARNING WARNING

•

Operator training must consist of a demonstration and verbal instruction. This training is given by your Bobcat dealer before the product is delivered.

•

The new operator must start in an area without bystanders and use all the controls until he or she can operate the machine and attachment safely under all conditions of the work area. Always fasten seat belt before operating.

•

Operator Training Courses are available from your Bobcat dealer in English and Spanish. They provide information for safe and efficient equipment operation. Safety videos are also available.

•

Service Safety Training Courses are available from your Bobcat dealer. They provide information for safe and correct service procedures.

Operator must have instructions before running the machine. Untrained operators can cause injury or death.

W-2001-1285

IMPORTANT This notice identifies procedures which must be followed to avoid damage to the machine.

I-2019-0284

KNOW THE WORK CONDTIONS

WARNING WARNING

•

Know the weight of the materials being handled.

Avoid exceeding the Rated Operating Capacity (R.O.C.) of the machine. Material which is very dense will be heavier than the same volume of less dense material. Reduce the size of the load if handling dense material.

•

The operator must know any prohibited uses or work areas, for example, he or she needs to know about excessive slopes.

•

Know the location of any underground lines. Call local utilities or the TOLL FREE phone number found in the SAFETY INSTRUCTIONS of this manual.

•

Wear tight fitting clothing. Always wear safety glasses when doing maintenance or service. Safety glasses, hearing protection or Special Applications Kits are required for some work. See your Bobcat dealer about Bobcat Safety Equipment for your model.

Warnings on the machine and in the manuals are for your safety. Failure to obey warnings can cause injury or death.

W-2044-1285

The Bobcat Loader and attachment must be in good operating condition before use.

Check all of the items on the Bobcat Service Schedule Decal under the 8-10 hour column or as shown in the Manual.

SAFE OPERATION NEEDS A QUALIFIED OPERATOR* A QUALIFIED OPERATOR MUST DO THE FOLLOWING: •

UNDERSTAND THE WRITTEN INSTRUCTIONS, RULES AND REGULATIONS

•

The written instructions from Bobcat Company include the Delivery Report, Operation & Maintenance Manual, Operator’s Handbook, Safety Manual and machine signs (decals).

* For an operator be qulified, he must not use drugs or alcoholic drinks which impair his alertness or coordination while working. An operator who is taking presciption drugs must ge medical advice to determine if he can safely operate a machine.

S102-0400

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FIRE PREVENTION

•

The machines and some attachments have components that are at high temperatures under normal operating conditions. The primary source of high temperatures is the engine and exhaust system. The electrical system, if damaged or incorrectly maintained, can be a source of arcs or sparks.

Use the procedure in the Operation & Maintenance Manual for connecting the battery and for jump starting.

•

Use the procedure in the Operation & Maintenance Manual for cleaning the spark arrestor muffler (if equipped).

•

Know where fire extinguishers and first aid kits are located and how to use them. Fire extinguishers are available from your Bobcat dealer.

Flammable debris (leaves, straw, etc.) must be removed regularly. If flammable debris is allowed to accumulate, it can cause a fire hazard. Clean often to avoid this accumulation. Flammable debris in the engine compartment is a potential fire hazard.

S103-0400

The spark arrestor exhaust system is designed to control the emission of hot particles from the engine and exhaust system, but the muffler and the exhaust gases are still hot.

•

Do not use the machine where exhaust, arcs, sparks or hot components can contact flammable material, explosive dust or gases.

•

The operator cab, engine compartment and engine cooling system must be inspected every day and cleaned if necessary to prevent fire hazards and overheating.

•

Check all electrical wiring and connections for damage. Keep the battery terminals clean and tight.

Repair or replace any damaged part.

•

Check fuel and hydraulic tubes, hoses and fittings for damage and leakage. Never use open flame or bare skin to check for leaks. Tighten or replace any parts that show leakage. Always clean fluid spills. Do not use gasoline or diesel fuel for cleaning parts. Use commercial nonflammable solvents.

•

Do not use ether or starting fluids on any engine that has glow plugs. These starting aids can cause explosion and injure you or bystanders.

•

Always clean the machine, disconnect the battery, and disconnect the wiring from the Bobcat controllers before welding. Cover rubber hoses, battery and all other flammable parts. Keep a fire extinguisher near the machine when welding. Have good ventilation when grinding or welding painted parts. Wear dust mask when grinding painted parts. Toxic dust or gas can be produced.

•

Stop the engine and let it cool before adding fuel. No smoking!

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MACHINE SIGNS (DECALS) Follow the instructions on all the Machine Signs (Decals) that are on the loader. Replace any damaged machine signs and be sure they are in the correct locations. Machine signs are available from your Bobcat loader dealer.

6707255

6703723

6705712 Standard Only 6705720

6708021

6577754 (3)

6706809

6557565

6561376

6561383

6702302 6702301 *6579528

6579510

*Decal located behind lift arm crossmember.

B-12555A

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MACHINE SIGNS (DECALS) (CONT’D) Follow the instructions on all the Machine Signs (Decals) that are on the loader. Replace any damaged machine signs and be sure they are in the correct locations. Machine signs are available from your Bobcat loader dealer.

6560573 6565990

6578368

6706558

6700388

6579403 (Europe Only)

6705221

6579398(Euro pe Only)

*6579511

6702942 6707867 *6700237

*Located inside the engine compartment.

B-13744A

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OPERATING INSTRUCTIONS ATTACHMENTS AND BUCKETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-28 Choosing The Correct Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-28 Installing And Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-29 AUXILIARY HIGH HORSEPOWER HYDRAULICS OPERATION . . . OI-18 Secondary Front Auxiliary Hydraulics (853H Only) . . . . . . . . . . . . OI-19 BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . . . . . . OI-6 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-6 Lift Arm By-Pass Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-7 Seat Sensor Override (If Equipped). . . . . . . . . . . . . . . . . . . . . . . . . OI-7 Traction Lock Override. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-7

OPERATING INSTRUCTIONS

DAILY INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-20 ENGINE SPEED CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-8 GETTING READY FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . OI-21 HYDRAULIC CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-13 Attachment Functions Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-17 Auxiliary Hydraulic Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-15 Auxiliary Hydraulics (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-14 Bucket Position Valve Operation (Optional). . . . . . . . . . . . . . . . . . OI-13 Foot Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-13 Front Auxiliary Control (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . OI-16 Front Auxiliary Hydraulics Continuous Operation (Detent) . . . . . . OI-16 Lift Arm Float Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-13 Lift Arm Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-13 Rear Auxiliary Control (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . OI-16 Tilt Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-13 INSTRUMENT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-3 Boss® Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-4 Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-3 LIFTING THE LOADER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-37 Four Point Lift. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-37 Single Point Lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-37

OI-1

553 Bobcat Loader Operation & Maintenance Manual

OPERATING INSTRUCTIONS (CONT’D) OPERATING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-31 Backfilling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-34 Digging Into The Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-33 Emptying the Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-32 Filling The Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-32 Leveling The Ground (Using Lift Arms In Float Position) . . . . OI-33 PARKING BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-8 PARKING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . . OI-34 SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . OI-11 STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-23 Cold Temperature Starting Condition (BOSS® Option) . . . . . OI-27 Cold Temperature Starting Condition (Standard) . . . . . . . . . . OI-25 Normal Starting Condition (BOSS® Option) . . . . . . . . . . . . . OI-26 Normal Starting Condition (Standard) . . . . . . . . . . . . . . . . . . OI-23 Warming The Hydraulic/Hydrostatic System . . . . . . . . . . . . . OI-27 STEERING LEVERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-10 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-10 STOPPING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . OI-10 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-10 STOPPING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . OI-34 STOPPING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . OI-36 STOPPING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-27 TRANSPORTING THE BOBCAT LOADER . . . . . . . . . . . . . . . . OI-35 Fastening To Transport Vehicle . . . . . . . . . . . . . . . . . . . . . . . OI-35 Loading Onto Transport Vehicle. . . . . . . . . . . . . . . . . . . . . . . OI-35 TOWING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-36

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553 Bobcat Loader Operation & Maintenance Manual

INSTRUMENT PANELS

8. BEACON SWITCH (OPT.) - Controls the optional flashing beacon light.

Standard 9. LIGHT SWITCH (OPT.) (Standard in Europe) Controls the work and travel lights

Figure OI-1 STANDARD 9 8

10

14

11 12

10. HAZARD SWITCH (OPT.) - Controls the optional hazard indicators.

15

13 7

11. PREHEAT SWITCH - For preheating the glow plugs before starting the engine.

16 12. BUCKET LEVEL SWITCH (OPT.) (Standard in Europe) - Controls the ON/OFF function of the optional bucket position valve.

6 4 1

2

3

5

17 18

13. HIGH FLOW SWITCH (OPT.) - Controls the ON/OFF function of the high horsepower auxiliaries.

MC-2034D

14. HOURMETER - Records the total operating hours of the loader.

The following items are located on the standard [Figure OI-1]:

15. VOLTMETER - Shows the condition of the battery and the rate of charge.

1. TRACTION LOCK OVERRIDE BUTTON (Functions Only When The Seat Bar Is Raised) Allows you to use the steering levers to move the loader forward or backward when using the backhoe attachment or for loader service. (See Traction Lock Override on Page OI-7).

16. FUEL GAUGE - Shows the amount of fuel in the fuel tank.

17. ENGINE TEMPERATURE GAUGE - Shows the engine coolant temperature.

18. AUXILIARY HYDRAULICS MODE SWITCH (OPT.) (Standard in Europe)- For engaging the auxiliary hydraulics (front or rear).

2. SEAT SENSOR OVERRIDE BUTTON (If Equipped) (Functions Only When The Seat Bar Is Down) Allows operator, when seated with the seat bar lowered, to use lift, tilt, and traction functions if the seat sensor cannot be activated.

3. IGNITION SWITCH - For starting, stopping the engine.

4. TURN/HAZARD INDICATORS (OPT.) - Left or right indicator blinks to indicate left or right turn. Both indicators blink to indicate a hazard condition when the hazard switch is ON. 5. POWER PLUG (Opt.) (Standard in Europe) - Used for optional electrical accessories.

6. ENGINE WARNING LIGHT - Lights when engine oil pressure is low or coolant temperature is high. Stop the engine if the light comes ON. 7. TRANSMISSION WARNING LIGHT - Low transmission charge pressure, hydraulic filter needs replacement or high fluid temperature. Stop the engine if the light comes ON.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

INSTRUMENT PANELS (CONT’D)

8. LIGHT SWITCH (OPT.) (Standard in Europe) Controls the work and travel lights

Boss® Option 9. HAZARD SWITCH (OPT.) - Controls the optional hazard indicators.

Figure OI-2 BOSS OPTION 8

10

9

7

11

10. BUCKET LEVEL SWITCH (OPT.) (Standard in Europe) - Controls the ON/OFF function of the optional bucket position valve.

6

11. HIGH FLOW SWITCH (OPT.) - Controls the ON/OFF function of the high horsepower auxiliaries.

12. DISPLAY PANEL - The display has the following symbols and functions (Ref. 13 thru 26).

12 4 1

2

3

5 13

13. AUXILIARY HYDRAULICS MODE SWITCH (OPT.) (Standard in Europe) - For engaging the auxiliary hydraulics (front and rear).

MC-2035

The following items are located on the standard [Figure OI-2]: 1. TRACTION LOCK OVERRIDE BUTTON (Functions Only When The Seat Bar Is Raised) Allows you to use the steering levers to move the loader forward or backward when using the backhoe attachment or for loader service. (See Traction Lock Overrideon Page OI-7.)

2. SEAT SENSOR OVERRIDE BUTTON (If Equipped) (Functions Only When The Seat Bar Is Down) Allows operator, when seated with the seat bar lowered, to use lift, tilt, and traction functions if the seat sensor cannot be activated.

3. IGNITION SWITCH - Controls the starting and stopping of the engine. If engine doesn’t start turn the key to the OFF position for 3 seconds to reset the fuel timer module.

4. TURN/HAZARD INDICATORS (OPT.) - Left or right indicator blinks to indicate left or right turn. Both indicators blink to indicate a hazard condition when the hazard switch is ON. 5. POWER PLUG (Opt.) (Standard in Europe) - Used for optional electrical accessories.

6. BOSS DIAGNOSTIC PORT - Connector for diagnostic tool to make service checks of the system operation unit and other components.

7. BEACON SWITCH (OPT.) - Controls the optional flashing beacon light.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

INSTRUMENT PANELS (CONT’D)

NOTE: The engine can be restarted for 30-second periods to move the loader after a shutdown condition

Boss® Option (Cont’d) Figure OI-3

20. WARNING SYMBOL - The symbol will be ON when any warning or shutdown is activated. The warning symbol is also used to indicate a warning if there is no related symbol on the display. During a warning the buzzer will beep three times and symbol will be ON continuously.

21. HOURMETER - Records the total operating hours of the loader. The five character code will display the operating hours to the nearest tenth. When WARNINGS or SHUTDOWNS occur an alphanumeric code will be displayed in the hourmeter area to inform the operator of the problem (See SERVICE CODES on Page SA-3). During a WARNING or SHUTDOWN the hourmeter symbol is not visible.

13 14

17

18

15

16

19 20

21

22

25

26

23

24

22. CHARGE PRESSURE AND FILTER CONDITION Flashing symbol indicates low fluid charge pressure and SHUTDOWN. If arrows are ON with gear/drop it is fluid charge pressure. This symbol will also indicate a clogged hydraulic fluid filter.

23. AIR FILTER CONDITION - This symbol will indicate a clogged air filter element.

MC-2042

24. GLOW PLUG (Diesel) - The symbol will flash when the glow plugs are energized. The hourmeter will also contain characters GLOXX where XX indicates the remaining time the glow plugs will be ON. Glow plug will count down in 5 second increments.

The following items are located on the standard [Figure OI-3]: 14. FUEL LEVEL - Shows the amount of fuel in the tank.

25. ENGINE SPEED - This symbol will indicate an engine overspeed WARNING and SHUTDOWN.

15. BATTERY VOLTAGE - Shows the condition of the battery and charge rate. Also will indicate a WARNING for high and low voltage.

26. PARKING BRAKE (Light is Non-Functional) - This symbol will indicate when the brake is engaged.

16. ENGINE OIL PRESSURE - Shows engine oil pressure. Flashing symbol indicates low oil pressure.

(WARNING & SHUTDOWN)

27. HYDRAULIC FLUID TEMPERATURE - This symbol will indicate a high fluid temperature and WARNING or SHUTDOWN.

17. ENGINE COOLANT TEMPERATURE/LEVEL Shows engine coolant temperature and/or low coolant level (WARNING & SHUTDOWN).

18. FUEL FILTER (Light is Non-Functional)- If fuel pump and bar flashes it is a low fuel WARNING. H2O symbol indicates water in the fuel filter.

19. SHUTDOWN SYMBOL - The symbol is associated with any shutdown condition. When this symbol comes ON the shutdown will occur in 30 seconds.

During shutdown the buzzer will sound continuously and the symbol will flash until the key is turned OFF.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

3. ON when lift and tilt hydraulic functions can be used.

Description

4. ON when loader can be moved forward and backward.

5. ON when the Controller is operating correctly.

WARNING

NOTE: If any of the lights are off or blinking, (See Troubleshooting Chart on Page SA-6). or (See BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) on Page PM-12).

AVOID INJURY OR DEATH Before you leave the operator’s seat: • Lower the lift arms, put the attachment flat on the ground.

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W-2045-1086

Figure OI-4 1 2 3 4 5

P-3760

The Bobcat Interlock Control System (BICS™) requires the operator to be seated in the operating position with the Seat Bar fully lowered and the green PRESS TO OPERATE Button activated before the lift, tilt and traction functions can be operated. The Seat Belt must be fastened anytime you operate the loader.

The lift, tilt and traction drive functions are interlocked with the seat bar. The lift and tilt functions are interlocked with the seat.

The BICS™ System Controller is located inside the cab behind and to the right of the operator’s seat [Figure OI4] There are five green lights on the BICS™ controller and all must be lighted to operate the loader.

The light functions are as follows [Figure OI-4]: 1. ON when operator is in the seat.

2. ON when the seat bar is in down position.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) (CONT’D)

Figure OI-6

Lift Arm By-Pass Control Figure OI-5

1 P5410

1 (Functions Only When The Seat Bar is Raised-If Equipped With Seat Sensor Override) P-3761

There is a traction lock override button (Item 1) [Figure OI-6] on the left hand instrument panel. It allows you to use the steering levers to move the loader forward and backward when using the backhoe attachment or for service.

The lift arm by-pass control knob (Item 1) [Figure OI-5] is used to lower the lift arms in the event that the lift arms cannot be lowered during normal conditions.

With the operator in the seat, seat belt fastened and the seat bar fully lowered, pull and hold the by-pass control knob (Item 1) [Figure OI-5] up. Push the top (toe) of the left (lift) pedal. The lift arms will slowly lower.

Seat Sensor Override (If Equipped)

WARNING

Traction Lock Override

AVOID INJURY OR DEATH The Bobcat Interlock Control System (BICS™) must deactivate the lift, tilt and traction drive functions. If it does not, contact your dealer for service. DO NOT modify the system.

WARNING AVOID INJURY OR DEATH Before you leave the operator’s seat: • Lower the lift arms, put the attachment flat on the ground.

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W-2151-0394

(Functions Only When The Seat Bar Is Down) Seat Sensor Override button (Item 1) [Figure OI-5] allows operator, when seated with the seat bar lowered, to use lift, tilt, and traction functions if the seat sensor cannot be activated.

W-2045-1086

If seat indicator light on the BICS Controller does not go on, check for debris, dirt, or objects under or behind seat.

NOTE: The auxiliary hydraulic functions are not affected by the Bobcat Interlock Control System (BICS™).

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853 & 853H Bobcat Loader Operation & Maintenance Manual

ENGINE SPEED CONTROL

PARKING BRAKE

Operation

Operation

Figure OI-7

Figure OI-8

MC-1914A

1

P2145

P-4637

The lever (Item 1) [Figure OI-7] is at the right side of the operator’s seat. Engine speed is controlled by moving the lever forward to increase the engine RPM and backward to decrease the engine RPM.

Engage the parking brake by pushing down on the top of the pedal [Figure OI-8]. The traction drive system will be locked.

NOTE: The traction lock override button will unlock the traction drive when the operator is NOT in the seat and the seat bar is raised.

The traction lock override button will function if brake pedal is in the engaged or disengaged position.

Press the button once to unlock traction drive (green traction light on BICS™ System Controller will be ON).

Press the button a second time to lock the traction drive (green traction light on BICS™ System Controller will be OFF).

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853 & 853H Bobcat Loader Operation & Maintenance Manual

PARKING BRAKE (CONT’D) Operation (Cont’d) Figure OI-9

MC-1914A

P-4635

To release the parking brake, push down on the bottom of the pedal [Figure OI-9].

NOTE: If the loader will not move when operator is in the operating position with brake pedal released or when traction lock override button is pushed, move the steering levers either forward or backward a small amount to unlock the traction drive.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

STEERING LEVERS

Figure OI-11

Operation

WARNING AVOID INJURY OR DEATH When operating the machine: • Keep the seat belt fastened snugly.

• The seat bar must be lowered.

• Keep your feet on the pedal controls or footrests and hands on steering levers.

W-2261-0799

Figure OI-10 1

PI-1849A

P2150

The steering levers control forward and reverse travel of the loader [Figure OI-11].

The steering levers (Item 1) [Figure OI-10] are on the right and left side in front of the seat.

Forward Travel - Push both levers forward.

For safe control of the loader always move the levers slowly and smoothly. Only a small movement is necessary to move the loader.

Normal Turning - Move one lever farther forward than the other.

Reverse Travel - Pull both levers backward.

Fast Turning - Push one lever forward and pull the other lever backward.

Slow travel speed, push the steering levers forward only a small amount.

To increase travel speed, push both the levers farther forward.

For maximum pushing force, push the levers forward only a small amount with the engine at full RPM. STOPPING THE BOBCAT LOADER Procedure When the steering levers are moved to the neutral position, the hydrostatic transmission will act as a service brake and stop the loader.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

SEAT BAR RESTRAINT SYSTEM

The spring loaded interlocks (Item 1) [Figure OI-13] control the locking and unlocking functions of the control pedals.

Figure OI-12

The interlocks (Item 1) [Figure OI-13] require the operator to lower the seat bar (Item 2) [Figure OI-13] which allows the operator to move the foot pedals to control the lift and tilt functions.

When seat bar is lowered, it pushes interlocks (Item 1) [Figure OI-13] down on both sides, releasing the pedal linkages (Item 3) [Figure OI-13] from the interlocks.

1

The pedals will pivot in both directions when the interlock is down.

P2148

WARNING

The seat bar restraint system has a pivoting seat bar (Item 1) [Figure OI-12] with arm rests and has spring loaded interlocks for the lift and tilt control pedals. The operator controls the use of the seat bar. The seat bar in the down position helps to keep the operator in the seat.

The interlocks require the operator to lower the seat bar in order to operate the foot pedal controls. When the seat bar is up, the lift and tilt control pedals are locked when returned to the neutral position.

AVOID INJURY OR DEATH Before you leave the operator’s seat: • Lower the lift arms, put the attachment flat on the ground.

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W-2045-1086

WARNING

WARNING

AVOID INJURY OR DEATH When operating the machine: • Keep the seat belt fastened snugly.

• The seat bar must be lowered.

• Keep your feet on the pedal controls.

AVOID INJURY OR DEATH The seat bar system must lock the lift and tilt control pedals in neutral when the seat bar is up. Service the system if pedals do not lock correctly.

W-2105-1285 W-2046-0595

Figure OI-13 SEAT BAR DOWN 2 Seat Bar

Pedal Linkage

1

3 Interlock Shield

MC-1668A

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853 & 853H Bobcat Loader Operation & Maintenance Manual

SEAT BAR RESTRAINT SYSTEM (CONT’D) Figure OI-14 SEAT BAR DOWN Seat Bar

Interlock Interlock Shield

MC-1668B

When the seat bar is raised, spring forces raise the interlocks [Figure OI-14].

The foot pedals will not pivot when the interlock is up.

Refer to the Preventive Maintenance section for Seat Bar Restraint System Inspection & Maintenance. (See SEAT BAR RESTRAINT SYSTEM on Page PM-11).

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853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONTROLS

Lift Arm Operation

Foot Pedals

The left pedal controls the lift arms. Push the bottom (heel) of the pedal (Item 2) [Figure OI-15] to raise the lift arm.

WARNING

Push on the top (toe) of the pedal (Item 3) [Figure OI-15] to lower the lift arms.

Keep both feet on pedals while operating machine.

Failure to do so can cause serious injury.

Lift Arm Float Position

W-2002-1285

Push the top (toe) (Item 3) [Figure OI-15] of the pedal all the way forward until it locks into detent (float).

Figure OI-15

Use the float position of the lift arms to level loose material while driving backward.

3

Tilt Operation 1

2

The right pedal controls the movement of the bucket.

Push the top (toe) (Item 4) [Figure OI-15] of the pedal to tilt the bucket forward.

P-4626

Push the bottom (heel) of the pedal (Item 5) [Figure OI15] to tilt the bucket backward.

Bucket Position Valve Operation (Optional) The function of the bucket position valve is to keep the bucket in the same approximate position it is placed in, prior to the upward lift cycle.

B-7440

4

1

Bucket positioning functions automatically during the upward lift cycle only.

5 P-4626

B-7441

Put your feet on the pedals and KEEP THEM THERE any time you operate the loader.

Two foot pedals (Item 1) [Figure OI-15] control the hydraulic cylinders for the lift and tilt functions.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONROLS (CONT’D)

Figure OI-17 LOCKED

Auxiliary Hydraulics (Optional)

WARNING

1

2

AVOID BURNS Hydraulic fluid, tubes, fittings and quick couplers can get hot when running machine and attachments.

Be careful when connecting and disconnecting quick couplers.

W-2220-0396 P7958

Figure OI-16

Rotate the ball release sleeve so that the locking pins (Item 1) [Figure OI-17] and the groove (Item 2) [Figure OI-17] do NOT align (Locked Position).

Figure OI-18

1 P7968

NOTE: The loader has auxiliary proportional control for front auxiliary hydraulics only.

Proportional control allows for slow-to-fast movement of auxiliary functions. EXAMPLE: If you move the auxiliary switch half way, the auxiliary function will move at approximately one-half speed.

To Release P7965

NOTE: If the locking pins and groove (Item 1) [Figure OI-18] are aligned, accidental disconnection is possible.

FLUSH FACE COUPLERS To Connect: Remove any dirt or debris from the surface of both the male and female coupler halves, and from the outside diameter of the male coupler. Visually check the couplers for corroding, cracking, damage, or excessive wear. If any of these conditions exist, the coupler(s) must be replaced [Figure OI-16].

To Disconnect: Rotate the ball release sleeve so that the grooves are aligned with the pins (Item 1) [Figure OI18] in the female coupler.

Holding the male coupler retract the sleeve on the female coupler until the couplers disconnect.

Install the male half coupler into the female half coupler.

Full connection is established when the ball release sleeve slides forward on the female coupler and the sleeve is rotated.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONROLS (CONT’D)

Auxiliary Hydraulic Button

Auxiliary Hydraulics (Optional) (Cont’d)

Figure OI-20 STANDARD

Figure OI-19 FRONT AUXILIARY QUICK COUPLERS (OPTIONAL)

W/BOSS

REAR AUXILIARY QUICK COUPLERS (OPTIONAL)

2

2

1

1

3 P3272 P-7968

3

P0998

N-00336

(Momentary Operation) Press the Auxiliary Hydraulic Button (Item 1) [Figure OI20] once.

NOTE: Caps and plugs are not used with flush face couplers.

The light (Item 2) [Figure OI-20] will be ON. Auxiliary hydraulics [Figure OI-19] are not standard, but can be a Factory Option or installed as a Field Accessory.

(Continuous Operation - Detent) Press the Auxiliary Hydraulic Button (Item 1) [Figure OI-20] a second time.

A loader without front or rear auxiliary hydraulics will not have switches in the control handles.

Both lights (Items 2 & 3) [Figure OI-20] will be ON. (Disengage) Press the Auxiliary Hydraulic Button (Item 1) [Figure OI20] a third time.

Both lights (Items 2 & 3) [Figure OI-20] will be OFF.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONROLS (CONT’D)

Rear Auxiliary Control (Optional)

Front Auxiliary Control (Optional)

Figure OI-23 REAR AUXILIARY QUICK COUPLERS (OPTIONAL)

Figure OI-21 TWO-SWITCH HANDLES

2

1

Left Steering Lever Control (Optional)

Right Steering Lever Control (Optional)

3

P0386 P2154

P2152

(Left Steering Lever Control) Figure OI-22

Set the Auxiliary Hydraulic Button for Momentary or Continuous Operation (See above).

DELUXE HANDLES 1

Push the switch (Item 2) [Figure OI-21] & [Figure OI22] to the right or left to change the fluid flow direction to the rear quick couplers [Figure OI23]. (EXAMPLE: Raise and lower rear stabilizers.)

This switch also controls the secondary front auxiliary (853H only). (See Secondary Front Auxiliary Hydraulics (853H Only) on Page OI-19).

2

3 Left Steering Lever Control (Optional)

P2130

Right Steering Lever Control (Optional)

NOTE: Either the secondary front OR the rear auxiliary couplers must be disconnected to operate only one auxiliary function.

Front Auxiliary Hydraulics Continuous Operation (Detent)

P2129

(Right Steering Lever Control)

(Right Steering Lever Control)

Set the Auxiliary Hydraulic Button for Momentary Operation (See above).

Set the Auxiliary Hydraulic Button for Continuous Operation (See above).

Push the switch (Item 1) [Figure OI-21] & [Figure OI22] to the right or left to change the fluid flow direction to the front quick couplers. (EXAMPLE: Open and close grapple teeth.)

Push the front button - trigger - (Item 3) [Figure OI22] to give the front quick couplers a constant flow of fluid (EXAMPLE: Operate a backhoe.)

To release from detent operation, press the front button (Item 3) [Figure OI-21] & [Figure OI-22] a second time.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONROLS (CONT’D)

WARNING

Attachment Functions Control Figure OI-24

Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes, causing serious injury or death. Fluid leaks under pressure may not be visible.

Use a piece of cardboard or wood to find leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate medical attention from a physician familiar with this injury.

1

W-2072-0496

N-00334

Figure OI-25 DELUXE HANDLES 7

4 6 5 Left Steering Lever Control (Optional)

Right Steering Lever Control (Optional) P2130

P2129

(Attachment Control Kit Required) (Item 1) [Figure OI24].

This kit, when installed allows the use of other switched on the right and left control handles for functions such as water spray, left/right turn signals, raise/lower the right/ left ends of the moldboard on a Grade, etc.

Switch (Item 4) [Figure OI-25] - Left/Right Turn Signals Switch (Item 5) [Figure OI-25] - Left Moldboard Up/ Down Switch (Item 6) [Figure OI-25] - Right Moldboard Up/ Down Switch (Item 7) [Figure OI-25] - Water Spray

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853 & 853H Bobcat Loader Operation & Maintenance Manual

AUXILIARY HIGH HORSEPOWER HYDRAULICS OPERATION

Figure OI-28 1

Figure OI-26 EARLY MODELS HI FLOW

SECONDARY COUPLERS 1

P-3804

2

P2122

3

When all hydraulic connections have been made, turn the Hi-Flow switch ON (Item 1) [Figure OI-28] (amber light is ON).

P0631

Figure OI-27

Continuous Operation (Detent) For continuous flow (forward only). (See Auxiliary Hydraulic Button on Page OI-15).

LATER MODELS SECONDARY HI FLOW COUPLERS 1

Momentary Operation| For momentary operation. (See Auxiliary Hydraulic Button on Page OI-15).

3 2

N-00334

N-00333

The High Horsepower function provides additional flow to the system to operate an attachment which requires more hydraulic flow (EXAMPLE: Planer). System pressure is also increased when Hi-Flow is ON. Be sure Hi-Flow switch is OFF Connect the attachment to the large quick couplers (Item 1) [Figure OI-26] & [Figure OI-27].

Some attachments may have a case drain which needs to be the connected to the screw-on male coupler (Item 2) [Figure OI-26] (for Early Loaders) or quick coupler (Item 2) [Figure OI-27] (for Later Loaders).

OI-18

853 & 853H Bobcat Loader Operation & Maintenance Manual

AUXILIARY HIGH HORSEPOWER HYDRAULICS OPERATION (CONT’D) Secondary Front Auxiliary Hydraulics (853H Only) The secondary front auxiliary quick couplers are a part of the Hi-Flow Hydraulics (factory option) [Figure OI-26] & [Figure OI-27]. They are also available as a Field Installed Accessory. These are used when there is a need for additional auxiliary hydraulics (EXAMPLE: Planer side shift).

Connect the attachment to the secondary auxiliary hydraulics (Item 3) [Figure OI-26] & [Figure OI-27].

Set the Auxiliary Hydraulic Button for Momentary or Continuous Operation. (See Auxiliary Hydraulic Button on Page OI-15).

Push switch (Item 2) [Figure OI-27] to the right or left to change fluid flow direction. (See Auxiliary Hydraulic Button on Page OI-15).(EXAMPLE: Side shift on the Planer.)

NOTE: Either the secondary front OR the rear auxiliary couplers must be disconnected to operate only one auxiliary function.

IMPORTANT If high-flow switch is in the ON position, High-Flow Hydraulics will flow through the front auxiliary quick coupler. Damage to unapproved attachments can result. Leave the switch OFF for backhoe operation.

I-2063-1197 I-2066-0395

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853 & 853H Bobcat Loader Operation & Maintenance Manual

DAILY INSPECTION

Figure OI-29

The loader must be in good operating condition [Figure OI-29].

Check the following items before starting each day: • • • • • • • • •

•

Engine Oil Level Hydraulic/Hydrostatic Fluid Level Engine Coolant System Operator Cab, Seat Belt, Seat Bar & Pedal Interlocks Lift Arm & Cylinder Pivot Pins Tires & Tire Pressure Any Loose or Broken Parts Safety Tread 7 Safety Signs.

Check the instrument panel idsplay readout for faulty codes (BOSS® Only) (See SERVICE CODES on Page SA-3).

Bobcat Interlock Control system (BICS™) (See BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) on Page OI-6)..

B-6583

WARNING

Follow the maintenance requirements on the Service Schedule Decal, located inside the rear door [Figure OI30].

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service.

Untrained operators and failure to follow instructions can cause injury or death.

Fluids such as engine oil, hydraulic fluid, coolants, etc. must be disposed of in an environmentally safe manner.

Some regulations require that certain spills and leaks on the ground must be cleaned in a specific manner. See local, state and federal regulations for correct disposal.

W-2003-0903

Figure OI-30

6715563

OI-20

853 & 853H Bobcat Loader Operation & Maintenance Manual

damaged. Replacement treads are available from your dealer.

GETTING READY FOR OPERATION Figure OI-31

Figure OI-33

1

P2143 P-4625

Read the Operation & Maintenance Manual and the Operator’s Handbook before operating the loader [Figure OI-31].

Pull the seat lever (Item 1) [Figure OI-33] and adjust the seat position for comfortable operation of the loader controls.

WARNING

WARNING

Operator must have instructions before operating the machine. Untrained operators can cause injury or death.

AVOID INJURY OR DEATH When operating the machine: • Keep the seat belt fastened snugly.

• The seat bar must be lowered.

• Keep your feet on the pedal controls.

W-2001-0502

Figure OI-32

W-2046-0595

Figure OI-34

B-12885

Use the bucket or attachment steps, grab handles and safety treads (on top the loader lift arms and frame) to get on and off the loader [Figure OI-32].

P2121

Fasten the seat belt snugly and adjust it so that the buckle is centered between your hips [Figure OI-34].

Safety treads are installed on the Bobcat loader to provide a slip resistant surface for getting on and off the loader. Keep safety treads clean and replace when

OI-21

853 & 853H Bobcat Loader Operation & Maintenance Manual

GETTING READY FOR OPERATION (CONT’D)

Figure OI-36

Figure OI-35

P2126 P2120

Keep your hands on the steering levers and feet on the pedals while seated in the loader [Figure OI-36].

Lower the seat bar [Figure OI-35].

Be sure the parking brake is engaged.

All controls must be in neutral position before you start the engine. (See STARTING THE ENGINE on Page OI23).

OI-22

853 & 853H Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE

Normal Starting Condition (Standard)

Figure OI-37

Figure OI-39

B-3724

P2120

Adjust the seat position for comfortable operation of the foot pedals and steering levers.

WARNING

Fasten the seat belt snugly and adjust it so the buckle is centered between your hips.

When an engine is running in an enclosed area, fresh air must be added to avoid concentration of exhaust fumes. If the engine is stationary, vent the exhaust outside. Exhaust fumes contain odorless, invisible gases which can kill without warning.

Lower the seat bar [Figure OI-39].

W-2050-1285

Figure OI-38

B-6578

WARNING • •

AVOID INJURY OR DEATH Engines can have hot parts and hot exhaust gas.

Keep flammable material away.

Do not use machines in atmosphere containing explosive gas.

W-2051-1086

OI-23

853 & 853H Bobcat Loader Operation & Maintenance Manual

Set the engine speed control to half speed position (Item 2) [Figure OI-40].

STARTING THE ENGINE (CONT’D) Normal Starting Condition (Standard) (Cont’d)

Turn the key to the ON position. The engine and transmission warning light will be ON when the key is on and the engine is stopped (Item 3) [Figure OI-40].

IMPORTANT

Turn the key to start position (Item 4) [Figure OI-40] and release it when the engine starts.

Do not engage the starter for longer than 15 seconds at a time. Longer use can damage the starter by overheating. Cool the starter for one minute between uses.

When the engine starts, release the key and it will return to the run position (Item 5) [Figure OI-40].

I-2034-0284

STOP THE ENGINE IF THE WARNING LIGHTS DO NOT GO OFF.

Figure OI-40 1

2

3

4

5

PI-02188

Put the foot pedals and steering levers in neutral (center) position (Item 1) [Figure OI-40].

OI-24

853 & 853H Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (CONT’D)

Figure OI-42

Cold Temperature Starting Condition (Standard)

WARNING Do not use ether with glow plug (preheat) systems.

Explosion can result which can cause injury, death, or severe engine damage.

W-2071-0903

Figure OI-41 6708105

Refer to the decal on the left side of the operator cab for operation of the preheat system [Figure OI-42].

1

Follow the steps under Normal Starting Condition and repeat the Preheating procedure until the engine starts.

If the temperature is below 32° F(0° C), use the following procedure to make starting the engine easier: Replace the engine oil with the correct type and viscosity for the anticipated starting temperature. (See Oil Chart on Page PM-21).

P5410

Make sure the battery is fully charged.

Also (See Normal Starting Condition (BOSS® Option) on Page OI-26). Turn the key switch to the RUN position.

Install a block or tank heater on the engine.

Push the PREHEAT button (Item 1) [Figure OI-41] on the left side of the instrument panel to preheat the glow plugs.

OI-25

853 & 853H Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (CONT’D)

Figure OI-45

Normal Starting Condition (BOSS® Option) Figure OI-43

P2120

Adjust the seat position for comfortable operation of the foot pedals and steering levers.

MC-2042

Turn the key to the ON position, one beep will sound and the display symbols will be ON [C]. Turn the key to START. (See Cold Temperature Starting Condition (BOSS® Option) on Page OI-27).

Fasten the seat snugly and adjust it so the buckle is centered between the hips.

Lower the seat bar [Figure OI-43].

Release the key when the engine starts.

Figure OI-44

IMPORTANT

1

Do not engage the starter for longer than 15 seconds at a time. Longer use can damage the starter by overheating. Allow starter to cool for one minute before using starter again.

I-2034-0700

2 When the key is turned ON, watch the alpha numeric display for readout codes. These readout codes are from the previous work shift when a WARNING may have occurred. (See SERVICE CODES on Page SA-3).

PI-2188B

Put the foot pedals and steering levers in neutral (center) position (Item 1) [Figure OI-44].

The readout codes may be viewed again by turning the key switch OFF and then ON again without starting the engine.

Be sure the parking brake is engaged.

Once the engine is started, the micro processor will clear all readout codes from memory. The codes will not reappear in subsequent key ON conditions unless the problem recurs.

Set the engine speed control to 1/2 speed position (Item 2) [Figure OI-44].

When the readout codes are completed, the numerical display will return to the operating hours.

OI-26

853 & 853H Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (CONT’D)

Figure OI-47

Cold Temperature Starting Condition (BOSS® Option)

OFF POSITION

OFF

WARNING Do not use ether with glow plug (preheat) systems.

Explosion can result which can cause injury, death, or severe engine damage.

W-2071-0903 PI-2188C

Figure OI-46

Turn the key to the START position and release when the engine starts. If the engine does not start, turn the key switch to the OFF position and ON again to cycle the glow plugs again. When the engine is running, slowly move the engine speed control forward to increase engine RPM. If the starting temperature is below 32°F. (0°C.), use the following procedure to make starting easier: Replace the engine oil with the correct type and viscosity for the anticipated starting temperature (See Oil Chart on Page PM-21).

Make sure the battery is at full charge.

Install an engine block heater or tank heater.

Warming The Hydraulic/Hydrostatic System MC-2042

IMPORTANT

(See Normal Starting Condition (BOSS® Option) on Page OI-26). Turn the key switch to the ON position (readout codes will show first) and the glow plug symbol will be ON [Figure OI-46].

When the temperature is below -20°F (-30°), hydrostatic oil must be warmed before starting. The hydrostatic system will not get enough oil at low temperatures and will be damaged. Park the machine in an area where the temperature will be above 0°F (18°C) if possible.

NOTE: If display is showing readout codes the timing of the glow plug activation may be obscured on the display. However, the glow plugs will actually be energized.

I-2007-1285

Let the engine run for a minimum of 5 minutes to warm the engine and hydrostatic transmission fluid before operating the loader. If the warning light comes ON when operating loader (cold), more warm up time is needed.

The number display will indicate the characters GLOXX where XX will show remaining time the glow plugs will be energized. The following chart shows the time glow plugs will be energized dependent on engine coolant temperature.

STOPPING THE ENGINE Pull the engine speed control fully backward to decrease the engine RPM. Turn the key switch to the OFF position [Figure OI-47].

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853 & 853H Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS

4. The life of the Bobcat loader will be reduced.

Choosing The Correct Bucket

Use the correct size bucket for the type and density of material being handled. For safe handling of materials and avoiding machine damage, the attachment (or bucket) should handle a full load without going over the rated operating capacity for the loader. Partial loads will make steering more difficult.

WARNING Never use attachments or buckets which are not approved by Bobcat Company. Buckets and attachments for safe loads of specified densities are approved for each model. Unapproved attachments can cause injury or death.

Figure OI-49 WEIGHT OF LOADERS LBS. (KG) 1090 (490)

W-2052-0500

The dealer can identify, for each model loader, the attachments and buckets approved by Bobcat Company.

The buckets and attachments are approved for Rated Operating Capacity and for secure fastening to the BobTach.

15.75 (400)

The Rated Operating Capacity for this loader is shown on a label in the operator cab. (See Capacities on Page SPEC-6).

CENTER OF LOAD LOCATION Inches (mm) 800 SERIES LOADERS B-17255

It is determined by using a standard dirt bucket, and material of normal density, such as dirt or dry gravel. If longer buckets are used, the load center moved forward and reduces the Rated Operating Capacity. If very dense material is loaded, the volume must be reduced.

The maximum load to be carried when using a pallet fork are shown in [Figure OI-49].

WARNING

Figure OI-48 WRONG

AVOID INJURY OR DEATH Do not exceed rated operating capacity. Excessive load can cause tipping or loss of control.

W-2053-0887

B-6587

Exceeding the rated operating capacity can cause the following problems [Figure OI-48]: 1. Steering the loader may be difficult.

2. Tires may wear faster.

3. There will be a loss of stability.

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853 & 853H Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (CONT’D)

Figure OI-51

Installing And Removal The loader is equipped with the Bob-Tach system. The Bob-Tach is used for fast changing of buckets and attachments. See the Attachment Operation & Maintenance Manual to install other attachments

WARNING Bob-Tach levers have spring tension. Hold lever tightly and release slowly. Failure to obey warning can cause injury.

P1562

W-2054-1285

Tilt the Bob-Tach backward until the bucket is off the ground [Figure OI-51]. Stop the engine.

Figure OI-50

Figure OI-52

P-1550

P1563 P1556

Pull the Bob-Tach levers all the way up.

Tilt the Bob-Tach forward. Drive the loader forward until the top edge of the Bob-Tach is completely under the flange of the bucket [Figure OI-50].

WARNING

DO NOT hit the Bob-Tach levers on the bucket.

AVOID INJURY OR DEATH Before you leave the operator’s seat: • Lower the lift arms, put the attachment flat on the ground.

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W-2045-1086

Push down on the Bob-Tach levers until they are in the locked position [Figure OI-52].

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853 & 853H Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (CONT’D) Installing The Bucket or Attachment (Cont’d)

WARNING Bob-Tach wedges must extend through the holes in attachment. Levers must be fully down and locked.

Failure to secure wedges can allow attachment to come off and cause injury or death.

W-2102-0588

Figure OI-53

1

P1543

The wedges (Item 1) [Figure OI-53] must extend through the holes in the bucket or attachment.

Removal: Pull up on the Bob-Tach levers, tilt the bucket forward and back the loader away from the bucket.

OI-30

853 & 853H Bobcat Loader Operation & Maintenance Manual

With a full bucket, go up or down the slope with the heavy end toward the top of the slope [Figure OI-54] and [Figure OI-55].

OPERATING PROCEDURE When operating on a public road or highway, always follow local regulation. For example: Slow Moving Vehicle Sign or Directional Signals may be required.

Figure OI-56 WITH BUCKET EMPTY

Always warm up the engine and hydrostatic system before operating the loader.

IMPORTANT Machines warmed up with moderate engine speed and light load have longer life.

I-2015-0284

Going Up Slope Operate the loader with the engine at full RPM for maximum horsepower. Move the steering levers only a small amount to operate the loader.

B-12873

Figure OI-57 WITH BUCKET EMPTY

New operators must operate the loader in an open area without bystanders. Operate the controls until the loader can be handled at a efficient and safe rate for all conditions of the work area.

Figure OI-54 WITH BUCKET FULL

Going Down Slope

B-13297

With empty bucket, go down or up the slope with the heavy end toward the top of the slope [Figure OI-56] and [Figure OI-57].

Going Up Slope

B-12878

WARNING

Figure OI-55 AVOID INJURY OR DEATH • Keep the lift arms as low as possible.

• Do not travel or turn with the lift arms up.

• Turn on level ground.

• Go up and down slopes, not across them.

• Keep the heavy end of the machine uphill.

• Do not overload the machine.

Failure to obey warnings can cause the machine to tip or roll over and cause injury or death.

WITH BUCKET FULL

W-2018-1187

Going Down Slope

Raise the bucket only high enough to avoid obstructions on rough ground.

B-12878

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853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURE (CONT’D)

WARNING

Filling The Bucket Figure OI-58

Load, unload and turn on flat level ground. Do not exceed rated operating capacity shown on sign (decal) in cab. Failure to obey warnings can cause the machine to tip or roll over and cause injury or death.

W-2056-1187 B-12830

Drive backward away from the material.

Emptying the Bucket Figure OI-60

B-12872

Push down on the top (toe) of the lift pedal until the lift arms are all the way down. Push the top of the tilt pedal to put the cutting edge of the bucket on the ground [Figure OI-58].

B-12830

Figure OI-59

B-12869

B-12830

Push down on the bottom of the lift pedal to raise the bucket over the truck box or bin [Figure OI-60].

Drive forward slowly until the bucket is over the top of the truck box or bin. Push the top of the tilt pedal until the bucket is empty [Figure OI-60]. If all the material is near the side of the truck box or bin, push it to the other side with the bucket.

B-12871

WARNING

Drive slowly forward into the material. Push the bottom of the tilt pedal to raise the front of the bucket [Figure OI59].

Never dump over an obstruction, such as a post, that can enter the operator cab. The machine could tip forward and cause injury or death.

W-2057-0694

OI-32

853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURE (CONT’D)

Leveling The Ground (Using Lift Arms In Float Position)

Digging Into The Ground Figure OI-63 Figure OI-61

B-12830 B-12830

B-12875 B-12874

Push the top (toe) of the lift pedal all the away forward until the pedal is in the locked position to put the lift arms in float position [Figure OI-63].

Put the lift arms all the way down. Push the top of the tilt pedal until the cutting edge of the bucket is on the ground. Drive forward slowly and continue to tilt the bucket down until it enters the ground [Figure OI-61].

Push the tilt pedal to change the position of the cutting edge on the bucket. With the bucket tilted farther forward, there is more force on the cutting edge and more loose material can be moved.

Push the bottom of the tilt pedal a small amount to increase traction and keep an even digging depth.

Continue to drive forward until the bucket is full. When the ground is hard, raise and lower the cutting edge of the bucket with the tilt pedal while driving forward slowly.

IMPORTANT

Figure OI-62

Never drive forward when the hydraulic control for lift arms is in float position.

I-2005-1285

Drive backward to level loose material. Push the bottom (heel) of the lift pedal to unlock from the float position.

B-12830

B-12876

Push the bottom (heel) of the tilt pedal to tilt the bucket backward as far as it will go when the bucket is full [Figure OI-62].

OI-33

853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURE (CONT’D)

PARKING THE BOBCAT LOADER

Backfilling

WARNING

Figure OI-64

AVOID INJURY OR DEATH Before you leave the operator’s seat: • Lower the lift arms, put the attachment flat on the ground.

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

B-12830

W-2045-1086

Stop the Bobcat loader on level ground.

Lower the lift arms fully and put the edge of the bucket on the ground.

B-12877

Pull the engine speed control all the way backward. Turn the key switch to the OFF position.

Lower the lift arms and put the cutting edge of the bucket on the ground. Drive forward to the edge of the hole to push the material into the hole [Figure OI-64].

Engage the parking brake.

Tilt the bucket forward as soon as it is past the edge of the hole [Figure OI-64].

Lift the seat bar and make sure the foot pedals are in the locked position.

If necessary, raise the lift arms to empty the bucket.

Unbuckle the seat belt. Remove the key from the switch to prevent operation of the loader by unauthorized personnel.

STOPPING THE BOBCAT LOADER When the steering levers are moved to the neutral position, the hydrostatic transmission will act as a service brake and stop the loader.

OI-34

853 & 853H Bobcat Loader Operation & Maintenance Manual

TRANSPORTING THE BOBCAT LOADER

Fastening To Transport Vehicle

Loading Onto Transport Vehicle

Figure OI-66

WARNING Adequately designed ramps of sufficient strength are needed to support the weight of the machine when loading onto a transport vehicle. Wood ramps can break and cause personal injury.

W-2058-0494

P-1656

P-1548

P-10731

Figure OI-65

MC-1241 6707867

A loader with an empty bucket or no attachment must be loaded backward onto the transport vehicle [Figure OI65].

MC-1242

Use the following procedure to fasten the Bobcat loader to the transport vehicle to prevent the loader from moving during sudden stops or when going up and down slopes [Figure OI-66].

The rear of the trailer must be blocked or supported [Figure OI-65] when loading or unloading the loader to prevent the front end of the trailer from raising up.

Lower the bucket or attachment to the floor. Stop the engine. Engage the parking brake. Install chains at the front and rear loader tie down positions (Inset) [Figure OI-66]. Fasten each end of the chain to the transport vehicle and tighten the chain with a chain tightener.

The Inset [Figure OI-66] shows the decal with attachment points for towing and tie down.

OI-35

853 & 853H Bobcat Loader Operation & Maintenance Manual

TOWING THE LOADER To prevent damage to the loader hydrostatic system, the loader must be towed only a short distance at slow speed. (Example: Moving the loader onto a transport vehicle.)

The towing chain (or cable) must be rated at 1-1/2 times the weight of the loader.

(See LOADER SPECIFICATIONS on Page SPEC-3).

•

Turn the key switch to ON and press the Traction Lock Override button.

•

Tow the Bobcat at 2 MPH (3,2 km/hr) or less for not more than 25 feet (7,6 meters).

If the electrical system is not functioning, contact your Bobcat loader dealer. (Part of the brake system must be disassembled to move the loader.)

STOPPING THE BOBCAT LOADER When the steering levers are moved to the neutral position, the hydrostatic transmission will act as a service brake and stop the loader.

OI-36

853 & 853H Bobcat Loader Operation & Maintenance Manual

LIFTING THE LOADER

Single Point Lift

Four Point Lift

WARNING

WARNING • AVOID INJURY OR DEATH Before you leave the operator’s seat: • Keep the seat belt fastened snugly.

• The seat bar must be lowered.

• Keep your feet on the pedal controls.

• •

AVOID INJURY OR DEATH Before lifting, check fasteners on single point lift and operator cab.

Assemble front cab fasteners as shown in this manual.

Never allow riders in the cab or bystanders within 15 feet (5 meters) while lifting the machine.

W-2046-0595

W-2007-0497

Figure OI-67

Figure OI-68

MC-1434

MC-1664

The loader can be lifted with the four point lift which is available as a kit from your Bobcat dealer.

The loader can also be lifted with the single point lift which is available as a kit from your Bobcat loader dealer.

Attach cables or chains to lift eyes as shown [Figure OI67].

Install the kit and lift as shown [Figure OI-68].

The single point lift, supplied by Bobcat Company is designed to lift and support the Bobcat loader without affecting roll over and falling object protection features of the operator cab.

OI-37

853 & 853H Bobcat Loader Operation & Maintenance Manual

OI-38

853 & 853H Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE AIR CLEANER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-16 ALTERNATOR BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-24 Adjusting The Alternator Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-24 BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . . . . PM-12 Inspecting The BICS™ Controller (Engine Stopped - Key ON) . . PM-12 Inspecting The Lift Arm By-Pass Control . . . . . . . . . . . . . . . . . . . PM-12 Inspecting The Seat and Seat Bar Sensors (Engine RUNNING) PM-12 Inspecting The Traction Lock (Engine RUNNING) . . . . . . . . . . . PM-12 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-13 BOB-TACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-39

PREVENTIVE MAINTENANCE

COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Checking The Coolant Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Cleaning The Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Propylene Glycol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-24 Removing Coolant From The Cooling System. . . . . . . . . . . . . . . PM-24 DRIVE BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-35 Adjusting The Drive Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-35 Replacing The Drive Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-36 ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-25 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-25 Fuse Location - (Standard & BOSS® Option) . . . . . . . . . . . . . . . PM-25 Removing And Installing The Battery. . . . . . . . . . . . . . . . . . . . . . PM-27 Servicing The Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . PM-25 Using A Booster Battery (Jump Starting) . . . . . . . . . . . . . . . . . . . PM-26 ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . PM-21 Checking Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-21 Oil Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-21 Replacment Of Oil And Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-21 FAN GEARBOX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-35 Checking And Maintaining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-35 FINAL DRIVE TRANSMISSION (CHAINCASE) . . . . . . . . . . . . . . . . PM-34 Checking And Adding Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-34 Removing Oil From The Chaincase. . . . . . . . . . . . . . . . . . . . . . . PM-34

PM-1

553 Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE (CONT’D) FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-18 Filling The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-18 Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-19 Fuel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-18 Removing Air From The Fuel System . . . . . . . . . . . . . . . . . PM-20 HYDRAULIC / HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . PM-28 Checking And Adding Fluid . . . . . . . . . . . . . . . . . . . . . . . . . PM-28 Hydraulic Fluid Replacement . . . . . . . . . . . . . . . . . . . . . . . . PM-29 Hydraulic Reservoir Breather Cap . . . . . . . . . . . . . . . . . . . . PM-31 Hydraulic/Hydrostatic Filter Replacement . . . . . . . . . . . . . . PM-28 LIFT ARM SUPPORT DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . PM-6 Disengaging The Lift Arm Support Device . . . . . . . . . . . . . . . PM-7 Engaging The Lift Arm Support Device . . . . . . . . . . . . . . . . . PM-6 LUBRICATING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . PM-37 MAINTENANCE SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-3 OPERATOR CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-8 Emergency Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-10 Lowering The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . PM-9 Raising The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-8 PIVOT PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-38 REAR DOOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 Adjusting The Rear Door . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 Opening The Rear Door. . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 REAR GRILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-15 SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . . . PM-11 Inspecting The Seat Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-11 Maintaining The Seat Bar . . . . . . . . . . . . . . . . . . . . . . . . . . PM-11 SERVICE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-5 Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-5 SPARK ARRESTOR MUFFLER . . . . . . . . . . . . . . . . . . . . . . . . PM-32 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-32 TIRE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-33 Tire Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-33 Tire Rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-33 Wheel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-33

PM-2

553 Bobcat Loader Operation & Maintenance Manual

MAINTENANCE SAFETY WARNING

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow W-2003-0903 instructions can cause injury or death.

Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.

CORRECT

CORRECT

CORRECT

B-10731a

B-12365

B-7469

Never service the Bobcat® Skid Steer Loader without instructions.

Use the correct procedure to lift or lower operator cab.

Cleaning and maintenance are required daily.

WRONG

WRONG

WRONG

B-11799

B-15231

B-15280

Have good ventilation when welding or grinding painted parts.

Wear dust mask when grinding painted parts. Toxic dust and gas can be produced.

Avoid exhaust fume leaks which can kill without warning. Exhaust system must be tightly sealed.

Disconnecting or loosening any hydraulic tubeline, hose, fitting, component or a part failure can cause lift arms to drop. Do not go under lift arms when raised unless supported by an approved lift arm support device.

Replace it if damaged.

Never work on loader with lift arms up unless lift arms are held by an approved lift arm support device. Replace if damaged.

Never modify equipment or add attachments not approved by Bobcat Company.

WRONG

WRONG

WRONG

B-6590

B-6580 B-16102

B-6589 B-16102

Stop, cool and clean engine of flammable materials before checking fluids.

Never service or adjust loader with the engine running unless instructed to do so in the manual.

Avoid contact with leaking hydraulic fluid or diesel fuel under pressure. It can penetrate the skin or eyes.

Never fill fuel tank with engine running, while smoking or when near open flame.

Keep body, jewelry and clothing away from moving parts, electrical contact, hot parts and exhaust.

Wear eye protection to guard from battery acid, compressed springs, fluids under pressure and flying debris when engines are running or tools are used.

Use eye protection approved for type of welding.

Keep rear door closed except for service. Close and latch door before operating the loader.

Lead-acid batteries produce flammable and explosive gases.

Keep arcs, sparks, flames and lighted tobacco away from batteries.

Batteries contain acid which burns eyes or skin on contact.

Wear protective clothing. If acid contacts body, flush well with water. For eye contact flush well and get immediate medical attention.

Maintenance procedures which are given in the Operation & Maintenance Manual can be performed by the owner/ operator without any specific technical training. Maintenance procedures which are not in the Operation & Maintenance Manual must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL. Always use genuine Bobcat replacement parts. The Service Safety Training Course is available from your Bobcat dealer.

PM-3

MSW01-0504

853 & 853H Bobcat Loader Operation & Maintenance Manual

PM-4

853 & 853H Bobcat Loader Operation & Maintenance Manual

SERVICE SCHEDULE Chart Maintenance work must be done at regular intervals. Failure to do so will result in excessive wear and early failures. The service schedule is a guide for correct maintenance of the Bobcat loader.

WARNING

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service. Untrained operators and failure to follow instructions can cause injury or death.

W-2003-0903

SERVICE SCHEDULE ITEM

HOURS

SERVICE REQUIRED

8-10

Engine Oil

Check the oil level & add oil as needed.

Engine Air Cleaner

Empty the dust cup & replace the filter element as needed.

Engine Cooling System

Clean debris from oil cooler, radiator and grill. Check coolant level cold in recovery tank . Add 50/50 ethylene glycol & water as needed.

Lift Arms, Cyl., Bob-Tach Pivot Pins & Wedges

Lubricate with multi-purpose lithium based grease (12 places).

Engine Air System

Check for leaks & damaged components.

Tires

Check the damaged tores & correct air pressure.

Seat Belt, Seat Bar & Pedal Interlocks

Check the condition of seat belt. Check the seat bar & pedal interlocks for correct operation. Clean dirt and debris from moving parts.

Bobcat Interlock Control System (BICS™)

Check BICS™ functions. Clean dirt, debris or objects from under or behind seat as required.

Safety Signs (Decals) and Safety Tread

Check for damaged signs (decals) and safety treads. Replace any signs or safety treads that are damaged or worn.

Operator Cab

Check the fastening bolts, washers & nuts. Check the condition of cab.

Fuel Filter

Remove the tapped water.

Hyd. Fluid, Hoses & Tubelines

Check fluid level & add as needed. Check for damage & leaks. Repair & replace as needed.

Final Drive Trans. (Chaincase)

Check oil level.

Battery

Check cables & electrolyte level.

Control Pedals & Steering

Check for correct operation repair or adjust as needed.

Wheel Nuts

Check for loose wheel nuts & tighten to 105-115 ft.-lbs. (142-156 Nm) torque.

Parking Brake

Check operation of the brake.

Alternator Belt

Check tension & adjust as needed.

Engine Oil & Filter

▼ Replace oil & filter. Use CD or better grade oil and Bobcat filter.

Spark Arrestor Muffler

Clean the spark chamber.

Engine/Hydro. Drive Belt

* Check for war or damage. Adjust as needed.

Fuel Filter

Replace filter element.

Steering Shaft

Grease two fittings.

Hyd./Hydro. Filter

●

Hydraulic Reservoir Breather Cap

Replace the reservoir breather cap.

Fan Drive Gearbox

Check gear lube level.

50

100

250

1000

Replace the filter element.

Final Drive Trans (Chaincase)

Replace the oil.

Hydraulic Reservoir

Replace the fluid.

Case Drain Filters

Replace the case drain filters (2).

Bobcat Interlock Control System (BICS™)

Check the lift arm by-pass control

❏

Check wheel nut torque every 8 hours for the first 24 hours.

● ■ *

Also replace hydraulic/hydrostatic filter element when the transmission warning light comes ON. Or every 12 months.

Inspect the new belt after first 50 hours.

▼

First oil and filter change must occur at 50 hours; 250 hours thereafter.

PM-5

853 & 853H Bobcat Loader Operation & Maintenance Manual

Figure PM-2

LIFT ARM SUPPORT DEVICE Engaging The Lift Arm Support Device

WARNING Never work on a machine with the lift arms up unless the lift arms are secured by an approved lift arm support device. Failure to use an approved lift arm support device can allow the lift arms or attachment to fall and cause injury or death.

W-2059-0598 P2118

WARNING Service lift arm support device if damaged or if parts are missing. Using a damaged lift arm support or with missing parts can cause lift arms to drop causing injury or death.

W-2271-1197

Lower the lift arm support device to the top of the lift cylinder. Hook the free end of the spring to the lift arms support device so there will be no interference with the support device engagement [Figure PM-2].

With the operator in the seat, seat belt fastened and seat bar lowered, start the engine.

Figure PM-3

Figure PM-1

1 P0095 P2123

Maintenance and service work can be done with the lift arms lowered. If the lift arms are raised for service, use the following procedure: Put jackstands under the rear corners of the loader.

Raise the lift arms, until the lift arm support device drops onto the lift cylinder rod [Figure PM-3].

Lower the lift arms slowly until the support device is held between the lift arm and the lift cylinder. Stop the engine.

Raise the seat bar and move pedals until both pedals lock.

Remove any attachment before raising the lift arms.

Disconnect the spring from the lift arm support device retaining pin, hold onto the lift arm support device and remove the retaining pin [Figure PM-1].

PM-6

Install pin (Item 1) [Figure PM-3] into the rear of the lift arm support device below the cylinder rod.

853 & 853H Bobcat Loader Operation & Maintenance Manual

LIFT ARM SUPPORT DEVICE (CONT’D) Disengaging The Lift Arm Support Device Figure PM-4

P1542

Remove the pin from the lift arm support device.

Connect the spring from the lift arm support device to the bracket below the lift arms [Figure PM-4].

With the operator in the seat, seat belt fastened and seat bar lowered, start the engine.

Raise the lift arms a small amount and the spring will lift the support device off the lift cylinder rod. Lower the lift arms. Stop the engine.

Raise the seat bar and move pedals until both pedals lock.

Disconnect the spring from the bracket.

Raise the support device into storage position and insert pin through lift arm support device and bracket (See Engaging The Lift Arm Support Device on Page PM-6).

Connect spring to pin. (See Engaging The Lift Arm Support Device on Page PM-6)

PM-7

853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB

Figure PM-6

WARNING Never modify operator cab by welding, grinding, drilling holes or adding attachments unless instructed to do so by Bobcat. Changes to the cab can cause loss of operator protection from rollover and falling objects, and result in injury or death.

W-2069-1299

WARNING

CD-15125

Remove the nut and plate (both sides) [Figure PM-6].

Before the cab or the lift arms are raised for service, jackstands must be put under the rear corners of the frame. Failure to use jackstands can allow the machine to tip backward causing injury or death.

Figure PM-7

W-2014-0895

The Bobcat loader has an operator cab (ROPS and FOPS) as standard equipment to protect the operator from rollover and falling objects. Check with your dealer if the operator cab has been damaged. The seat belt must be worn for rollover protection.

Raising The Operator Cab Figure PM-5 P0380

Lift on the grab handle and bottom of the operator cab slowly until the cab latching mechanism engages and the cab is all the way up [Figure PM-7].

CD-15126

Stop the loader on a level surface. Lower the lift arms. If the lift arms must be up while raising the operator cab, install the lift arm support device. (See LIFT ARM SUPPORT DEVICE on Page PM-6).

Loosen the nut (both sides) at the front corner of the operator cab [Figure PM-5].

PM-8

853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (CONT’D) Lowering The Operator Cab Figure PM-8

1

CD-15124

NOTE: Make sure the seat bar is fully raised or lowered when lowering the cab. Always use the grab handles to lower the cab.

Pull down on the bottom of the operator cab until it stops at the latching mechanism. Release the latching mechanism (Item 1) [Figure PM-8] and pull the cab all the way down.

Install the plate and nut (both sides). Tighten the nuts to 40-50 ft.-lbs. (54-68 Nm) torque[Figure PM-5].

PM-9

853 & 853H Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (CONT’D)

Level l - Protection form falling bricks, small concrete blocks, and hand tools encountered in operations such as highway maintenance, landscaping, and other construction site services.

Emergency Exit Figure PM-9

Level ll - Protection from falling tree, rocks; for machines involved in site clearing, overhead demolition or forestry.

Figure PM-11

P0660

The front opening on the operator cab and rear window provide exits.

6707852

To exit through the rear window, use the following procedure:

NOTE: When an Operator Cab Enclosure Kit (optional) is installed, the window of the front door can be used as an emergency exit [Figure PM-11].

Pull on the tag on the top of the rear window to remove the rubber cord [Figure PM-9].

Figure PM-10

Pull the plastic loop at the top of the window in the front door.

Push the window out with your foot.

P0383

Push the rear window out of the rear of the operator cab.

Exit through the rear of the operator cab [Figure PM-10].

ROPS/FOPS Roll-Over Protection Structure per SAE J1040 and ISO 3471, and Falling Object Protective Structure per SAE J1043 and ISO 3449, Level l. Level ll is available.

PM-10

853 & 853H Bobcat Loader Operation & Maintenance Manual

SEAT BAR RESTRAINT SYSTEM

Maintaining The Seat Bar

The seat bar restraint system has a pivoting seat bar with arm rests and spring loaded interlocks for the lift and tilt control pedals. The operator controls the use of the seat bar. The seat bar in the down position helps to keep the operator in the seat. The interlocks require the operator to lower the seat bar in order to operate the foot pedal controls. When the seat bar is up, the lift and tilt control pedals are locked when returned to the neutral position.

(See SERVICE SCHEDULE on Page PM-5) and on the loader for correct service interval.

Figure PM-12

WARNING AVOID INJURY OR DEATH The seat bar system must lock the lift and tilt control pedals in neutral when the seat bar is up. Service the system if pedals do not lock correctly.

W-2105-1285 P3269A

P3270A

Inspecting The Seat Bar Figure PM-13 Sit in the seat and fasten the seat belt. Engage the parking brake. Pull the seat bar all the way down. Start the engine. Operate each foot pedal to check both the lift and tilt functions. Raise the lift arms until the bucket is about 2 feet (600 mm) off the ground.

Raise the seat bar. Try to move each foot pedal. Pedals must be firmly locked in the neutral position. There must be no motion of the lift arms or tilt (bucket) when the pedals are pushed.

Clean

Pedal Lock Shield

Pull the seat bar down, lower the lift arms. Operate the lift pedal. While the lift arms are going up, raise the seat bar. and the lift arms should stop.

P1223

Lower the seat bar, lower the lift arms and place the bucekt flat on the ground. Stop the engine. Raise the seat bar and operate the foot pedals to be sure that the pedals are firmly locked in the neutral position. Unbuckle the seat belt.

Clean any debris or dirt from the moving parts [Figure PM-12] & [Figure PM-13]. Inspect the linkage bolts and nuts for tightness. The correct torque is 25-28 ft.-lbs. (3438 Nm).

If the seat bar system does not function correctly, check for free movement of each linkage part. Check for excessive wear. Adjust pedal control linkage. Replace parts that are worn or damaged. Use only genuine Bobcat replacement parts.

PM-11

853 & 853H Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

Inspecting The Traction Lock (Engine RUNNING)

Inspecting The BICS™ Controller (Engine Stopped Key ON)

7. Fasten seat belt, disengage parking brake, and raise seat bar fully. Move steering levers slowly forward and backward. The traction lock should be engaged.

Lower the seat bar.

Figure PM-14

8. Engage parking brake and move steering levers slowly forward and backward. The traction lock should be engaged.

1 2 3

Inspecting The Lift Arm By-Pass Control

4

9. Raise the lift arms 6 feet (2 m) off the ground. Stop engine, pull up and hold lift arm by-pass control knob.

Push the toe of the left foot pedal and the lift arms should lower slowly.

5

P-3760

WARNING

1. Sit in operator’s seat. Turn key ON, lower the seat bar and disengage parking brake. All five BICS System Controller lights should be ON (Items 1, 2, 3, 4 & 5) [Figure PM-14].

AVOID INJURY OR DEATH The Bobcat Interlock Control System (BICS™) must deactivate the lift, tilt and traction drive functions. If it does not, contact your dealer for service. DO NOT modify the system.

2. Engage the parking brake and raise the seat bar fully.

Seat bar light (Item 2), valve light (Item 3) and traction light (Item 4) [Figure PM-14] should be OFF.

W-2151-0394

3. Raise up slightly off the seat. Seat light (Item 1) [Figure PM-14] should be OFF NOTE: Record what lights are flashing (if any) and the number of light flashes. (See BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) on Page SA-5).

4. Exit the loader and press Traction Lock Override button. Traction light (Item 4) [Figure PM-14] should be ON. Press override button again and Traction light (Item 4) [Figure PM-14] should be OFF. Inspecting The Seat and Seat Bar Sensors (Engine RUNNING) 5. Sit in operator’s seat, lower seat bar and engage parking brake. Fasten the seat belt.

6. Start engine and operate at low idle. While raising the lift arms, raise the seat bar fully. The lift arms should stop. Repeat using the tilt function.

NOTE: The auxiliary hydraulic functions are not affected by the Bobcat Interlock Control System (BICS™).

PM-12

853 & 853H Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) (CONT’D) Maintenance Figure PM-15 Clean Area Behind and Under Seat

P-3763

Figure PM-16

Operator Seat

Seat Spring

Seat Sensor MC-2043

Clean any debris, dirt or objects from under or behind the operator seat [Figure PM-15] & [Figure PM-16]. The rear of the seat must move up and down.

Clearance is necessary between the seat spring (Item 1) [Figure PM-16] and the seat, to allow the seat to move up and down freely. With adequate clearance, the seat sensor will be allowed to function properly.

Inspect seat bar pivot area for tightness of linkage bolts.

Replace parts that are damaged. Use only genuine Bobcat replacement parts.

PM-13

853 & 853H Bobcat Loader Operation & Maintenance Manual

REAR DOOR

Adjusting The Rear Door

Opening The Rear Door

Figure PM-18

WARNING AVOID INJURY OR DEATH Never service or adjust the machine when the engine is running unless instructed to do so in the manual.

W-2012-0497

1

2

WARNING P1598

Keep the rear door closed when operating the machine. Failure to do so could seriously injure a bystander.

P1595

The door latch catch (Item 1) [Figure PM-18] can be adjusted side to side for alignment with the door latch mechanism.

W-2020-1285

The door latch mechanism (Item 2) [Figure PM-18] can be adjusted backward or forward for alignment with the door catch.

Figure PM-17

P-0374

P0375

Put your fingers into the slot in the rear door and pull on the latch handle [Figure PM-17].

Pull the rear door open.

PM-14

853 & 853H Bobcat Loader Operation & Maintenance Manual

REAR GRILL

Figure PM-20

Figure PM-19 1

P0372 P0376

The rear grill is held open by the cylinder (Item 1) [Figure PM-20].

Open the rear door.

Close the grill and the rear door before operating the loader.

Raise the rear grill [Figure PM-19].

NOTE: To prevent damage to the rear grill, always lower the rear grill before raising the operator cab.

PM-15

853 & 853H Bobcat Loader Operation & Maintenance Manual

Figure PM-23

AIR CLEANER SERVICE Figure PM-21 1 2

1

CD-15117 CD-15118

Service the air cleaner as follows: WITH CONDITION INDICATOR: Replace the large (outer) filter element only when the red ring shows in the window of the condition indicator (Item 1) [Figure PM21].

Remove the dust cover wing nut (Item 1) [Figure PM23].

Remove the dust cover.

NOTE: Before replacing the filter element, push the button on the condition indicator (Item 2) [Figure PM-21]. Start the engine. If the red ring does not show, do not replace the filter element.

Replace the inner filter every third time the outer filter is replaced or when the red ring still shows in the indicator window after the outer filter has been replaced.

Figure PM-22

MC-2042

WITH BOSS OPTION: It is important to change the air filter element only when the service codes (on the optional instrument panel) shows the symbols [AF.2] [Figure PM-22].

PM-16

853 & 853H Bobcat Loader Operation & Maintenance Manual

AIR CLEANER SERVICE (CONT’D)

Figure PM-26

Figure PM-24

1

1

CD-15121 CD-15119

Only replace the inner filter element under the following conditions: Remove the wing nut (Item 1) [Figure PM-24] at the large air filter element.

1. Replace the inner filter element every third time the outer filter is replaced.

Figure PM-25 2. When the service codes show symbols [Figure PM22] during full engine speed, replace the inner filter element only after the outer filter element has been changed.

Remove the inner filter wing nut (Item 1) [Figure PM-26] to remove the filter element.

CD-15120

Remove the large filter element [Figure PM-25].

NOTE: Make sure all sealing surfaces are free of dirt and debris.

Install the new filter element and washer and tighten the wing nut.

Check the air intake hose for damage. Check the air cleaner housing for damage. Check to make sure all connections are tight.

PM-17

853 & 853H Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM

Figure PM-28 WRONG

Fuel Specifications Use only clean, high quality diesel fuel, Grade No. 1 or Grade No. 2.

The following is one suggested blending guideline which should prevent fuel gelling during cold temperatures: TEMP F (C)

NO. 2

NO. 1

+15° (9°)

100%

0%

Down to -20° (-29°)

50%

50%

Below -20° (-29°)

0%

100% B-13456

We recommend an opertor contact their fule supplier for local recommendations.

Use a clean, approved safety container to add fuel of the correct specifications. Add fuel only in an area that has free movement of air and no open flames or sparks. NO SMOKING! [Figure PM-28]

Filling The Fuel Tank

Install and tighten the fuel fill cap [Figure PM-27].

WARNING Stop and cool the engine before adding fuel. NO SMOKING! Failure to obey warnings can cause an explosion or fire.

W-2063-0887

Figure PM-27

1

P2124

Remove the fuel fill cap (Item 1) [Figure PM-27].

PM-18

853 & 853H Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM (CONT’D) Fuel Filter

WARNING Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-1285

See the (SERVICE SCHEDULE on Page PM-5) for the service interval when to remove the water from the fuel filter.

Figure PM-29

2

1 CD-15123

Loosen the drain (Item 1) [Figure PM-29] at the bottom of the filter element to drain the water from filter.

See the (SERVICE SCHEDULE on Page PM-5) for the service interval when to replace the fuel filter.

Remove the filter element (Item 2) [Figure PM-29].

Clean the area around the filter housing. Put oil on the seal of the new filter element. Install the fuel filter, and hand tighten. Remove the air from the fuel system. (See Removing Air From The Fuel System on Page PM-20).

PM-19

853 & 853H Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM (CONT’D)

Figure PM-31

Removing Air From The Fuel System

WARNING Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-1285

Figure PM-30

CD-10847

Loosen the air vent plug at the top of the fuel injection pump [Figure PM-31].

1

Again operate the priming bulb until fuel flows from the air vent plug with no air bubbles showing [Figure PM30].

Tighten the air vent plug at the fuel injection pump [Figure PM-31].

2

CD-15123

After replacing the filter element or when the fuel tank has run out of fuel, air must be removed from the fuel system before starting the engine.

Loosen the air vent plug (Item 1) [Figure PM-30] at the top of the fuel filter.

Operate the priming bulb (Item 2) [Figure PM-30] until fuel flows from the filter vent plug. Tighten the fuel filter vent plug.

PM-20

853 & 853H Bobcat Loader Operation & Maintenance Manual

ENGINE LUBRICATION SYSTEM

Replacment Of Oil And Filter

Checking Engine Oil

Figure PM-34

Figure PM-32

1 1

CD-15113 CD-15112

Follow the service interval for replacing the engine oil and filter (See SERVICE SCHEDULE on Page PM-5).

Check the engine oil level every day.

Before starting the engine for the work shift, open the rear door. Remove the dipstick [Figure PM-32].

Keep the oil level between the marks on the dipstick.

Use good quality motor oil that meets API Service Classification of CD or better (See Oil Chart [Figure PM33]).

Run the engine until it is at operating temperature. Stop the engine.

Open the rear door. Remove the drain plug (Item 1) [Figure PM-34]. Drain the oil into a container.

Figure PM-35

Oil Chart Figure PM-33

1

CD-15122

Remove the filter (Item 1) [Figure PM-35].

Clean the filter housing surface. Put clean oil on the new oil filter gasket. Install the filter and hand tighten only.

Install and tighten the drain plug.

PM-21

853 & 853H Bobcat Loader Operation & Maintenance Manual

ENGINE LUBRICATION SYSTEM (CONT’D)

Figure PM-37

Replacment Of Oil And Filter (Cont’d) Figure PM-36

CD-10852

1

Put 8 qts. (7,6 L) of oil in the engine (See Oil Chart on Page PM-21) [Figure PM-37].

CD-15114

Start the engine and let it run for several minutes. Stop the engine. Check for leaks and check the oil level. Add oil as needed if it is not at the top mark on the dipstick..

Remove the oil fill cap (Item 1) [Figure PM-36].

WARNING Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W-2103-1285

PM-22

853 & 853H Bobcat Loader Operation & Maintenance Manual

COOLING SYSTEM

Figure PM-39

Checking the cooling system every day to prevent overheating, loss of performance or engine damage.

WARNING Wear safety glasses to prevent eye injury when any of the following conditions exist: • When fluids are under pressure.

• Flying debris or loose material is present.

• Engine is running.

• Tools are being used.

P0381

W-2019-1285

Cleaning The Cooling System

Raise the oil cooler and clean the top of the radiator [Figure PM-39].

Figure PM-38 Check cooling system for leaks.

Checking The Coolant Level Figure PM-40

P0378

Raise the rear grill.

Use air pressure or water pressure to clean the top of the oil cooler [Figure PM-38].

CD-15011

Open the rear door. Check the coolant level in the coolant recovery tank on the right side of the engine [Figure PM-40].

The coolant recovery tank must be 1/3 full.

PM-23

853 & 853H Bobcat Loader Operation & Maintenance Manual

COOLING SYSTEM (CONT’D)

After all the coolant is removed, install and tighten the drain plug.

Removing Coolant From The Cooling System NOTE: The loader is factory filled with propylene glycol coolant. DO NOT mix propylene glycol with ethylene glycol.

WARNING

Propylene Glycol

AVOID BURNS Do not remove radiator cap when the engine is hot.

You can be seriously burned.

Add premixed coolant; 47% water and 53% propylene glycol to the recover tank if the coolant level is low.

W-2070-1203

One gallon and one pint of propylene glycol mixed with one gallon of water is the correct mixture of coolant to provide a -345F (-375C) freeze protection.

Figure PM-41

Mix the coolant in a separate container. (See Capacities on Page SPEC-6).

Fill the radiator and engine block with the premixed coolant. Install the radiator cap.

Fill the coolant recovery tank 1/3 full.

1

Run the engine until it is at operating temperature. Stop the engine. Check the coolant level in the recovery tank when cool. Add coolant to the recovery tank as needed.

ALTERNATOR BELT Adjusting The Alternator Belt Figure PM-43

P0379

Open the rear door. Open the rear grill. .

Remove the radiator cap (Item 1) [Figure PM-41].

2

1

Figure PM-42

1 CD-9339

Stop the engine.

Raise the operator cab. (See Raising The Operator Cab on Page PM-8).

Loosen the alternator mounting bolt (Item 1) [Figure PM42].

P2125

Loosen the adjustment bolt (Item 2) [Figure PM-43].

Remove the drain plug (Item 1) [Figure PM-42] from the side of the engine block. Drain the coolant into a container.

Move the alternator until the belt has 5/16’’ (8,0 mm) movement at the middle of the belt span with 15 lbs. (66 N) of force.

PM-24

853 & 853H Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM

Fuse Location - (Standard & BOSS® Option)

Description

Figure PM-45

The loader has a 12 volt, negative ground alternator charging system. The electrical system is protected by fuses located in the engine compartment. The fuses will protect the electrical system when there is an electrical overload. The reason for the overload must be found before starting the engine again.

1

Servicing The Electrical System Figure PM-44

CD-15011

The electrical system for this model loader is protected by fuses (Item 1) [Figure PM-45] located at the coolant recovery tank.

Figure PM-46

1

P0742

The battery cables must be clean and tight. Check the water level in the battery. Remove acid or corrosion from the battery and cables with a baking sodium bicarbonate and water solution [Figure PM-44].

2

5

6

8 3

7 4

Cover the bttery terminals and cable ends with grease.

CD-15007

WARNING

The fuse capacity and circuits are listed below [Figure PM-45].

Batteries contain acid which burns eyes and skin on contact. Wear goggles, protective clothing and rubber gloves to keep acid off body.

REF. FUSE CAPCITY CIRCUIT

In case of acid contact, wash immediately with water.

In case of eye contact get prompt medical attention and wash eye with clean, cool water for at least 15 minutes.

If electrolyte is taken internally drink large quantities of water or milk! DO NOT induce vomiting. Get prompt medical attention.

W-2065-1296

PM-25

1.

15 AMP.

Ignition/Engine

2.

15 AMP.

Aux. Hydraulics

3.

10 AMP.

BICS™

4.

10 AMP.

BOSS

5.

25 AMP.

Brake

6.

25 AMP.

Accessory

7.

25 AMP.

Lights

8.

25 AMP.

Accessory

853 & 853H Bobcat Loader Operation & Maintenance Manual

operator’s seat and one person to connect and disconnect the battery cables.

ELECTRICAL SYSTEM (CONT’D) Using A Booster Battery (Jump Starting)

The ignition must be in the OFF position. The booster battery to be used must be 12 volt.

IMPORTANT

Figure PM-47 3

Damage to the alternator can occur if: Engine is operated with battery cables disconnected.

Battery cables are connected when using a fast charger or when welding on the loader. (Remove both cables from the battery.)

Extra battery cables (booster cables) are connected wrong.

4

I-2023-1285 CD-15010

WARNING Batteries contain acid which burns eyes and skin on contact. Wear goggles, protective clothing and rubber gloves to keep acid off body.

In case of acid contact, wash immediately with water.

In case of eye contact get prompt medical attention and wash eye with clean, cool water for at least 15 minutes.

1

3

If electrolyte is taken internally drink large quantities of water or milk! DO NOT induce vomiting. Get prompt medical attention.

W-2065-1296

CD-15009

Connect the end of the first cable (Item 1) [Figure PM47] to the positive terminal (+) of the booster battery.

Connect the other end of the same cable (Item 2) [Figure PM-47] to the loader battery positive (+) terminal.

WARNING Keep arcs, sparks flames and lighted tobacco away from batteries. When jumping from booster battery make final connection (negative) at engine frame.

Connect the end of the second cable (Item 3) [Figure PM-47] to the negative terminal (-) of the booster battery.

Connect the other end of second cable (Item 4) [Figure PM-47] to the engine ground.

Do not jump start or charge a frozen or damaged battery. Warm battery to 60°F (16°C) before connecting to a charger. Unplug charger before connecting or disconnecting cables to battery. Never lean over battery while boosting, testing or charging.

Keep cables away from moving parts. Start the engine.

(See Cold Temperature Starting Condition (Standard) on Page OM-25).

After the engine has started, remove the ground (-) cable connected to the engine first.

Battery gas can explode and cause serious injury.

W-2066-1296

Remove the cable from the starter.

If it is necessary to use a booster battery to start the engine, BE CAREFUL! There must be one person in the

PM-26

853 & 853H Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (CONT’D)

Figure PM-50

Removing And Installing The Battery Figure PM-48

1

P0967

Remove the battery from the loader [Figure PM-50].

P0958

Figure PM-51 Open the rear door. Disconnect the negative (-) cable [Figure PM-48].

Disconnect the positive (+) battery cable (Item 1) [Figure PM-48] Figure PM-49

P-9589A

P-9590A

Always clean the terminals and cable ends when installing a new battery [Figure PM-51].

When installing the battery in the loader, do not touch any metal parts with the battery terminals.

P0963

Connect and tighten the battery cables. Connect the negative (-) cable last to prevent sparks.

Remove the battery hold down clamp [Figure PM-49].

PM-27

853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC / HYDROSTATIC SYSTEM

Hydraulic/Hydrostatic Filter Replacement

Checking And Adding Fluid

Figure PM-54

Figure PM-52

1

CD-15127 CD-15162

Figure PM-55 Use only recommended fluid in the hydraulic system.

(See Hydraulic System on Page SPEC-5).

To check the reservoir, use the following procedure: Put the loader on a level surface. Lower the lift arms and tilt the Bob-Tach fully back.

Remove the dipstick [Figure PM-52].

1 The fluid level must be between the marks on the dipstick.

Figure PM-53 CD-15128

(See SERVICE SCHEDULE on Page PM-5) for the correct service interval.

1

Raise the operator cab. (See Raising The Operator Cab on Page PM-8).

CD-15135

Use a filter wrench and remove the filter element (Item 1) [Figure PM-54] & [Figure PM-55].

Clean the surface of the filter housing where the element seal contacts the housing. Put clean oil on the rubber seal of the filter elements.

CD-15161

Install and hand tighten the filter elements.

If fluid is needed, remove the filler cap (Item 1) [Figure PM-53].

NOTE: Before installing the fill cap, make sure the rubber gasket is installed on the fill cap (Inset) [Figure PM-53].

Add the fluid as needed to bring the level to the top mark on the dipstick.

PM-28

853 & 853H Bobcat Loader Operation & Maintenance Manual

Figure PM-57

HYDRAULIC / HYDROSTATIC SYSTEM (CONT’D) Hydraulic Fluid Replacement Figure PM-56

1

1 CD-15135

CD-15163

Remove the screen (Item 1) [Figure PM-57] and thoroughly clean with solvent.

CD-15161

Raise the operator cab. (See Raising The Operator Cab on Page PM-8).

(See SERVICE SCHEDULE on Page PM-5) for the service interval.

Figure PM-58 Replace the fluid if it becomes contaminated and after any major repairs.

Clean the two hydrostatic motor case drain filters thoroughly after a major repair.

1

Remove the filler cap (Item 1) [Figure PM-56].

NOTE: Before installing the fill cap, make sure the rubber gasket is installed on the fill cap (Inset) [Figure PM-56]

CD-15130

Disconnect the hose from the hydrostatic motor case drain filter (Item 1) [Figure PM-58].

PM-29

853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC / HYDROSTATIC SYSTEM (CONT’D)

WARNING

Hydraulic Fluid Replacement (Cont’d) Figure PM-59

Diesel fuel or hydraulic fluid under pressure can penetrate skin or eyes, causing serious injury or death. Fluid leaks under pressure may not be visible.

Use a piece of cardboard or wood to find leaks. Do not use your bare hand. Wear safety goggles. If fluid enters skin or eyes, get immediate medical attention from a physician familiar with this injury.

W-2072-0496

1

WARNING Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil.

Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

CD-15131

NOTE: There is a 90 micron filter in each hydrostatic motor case drain line. Remove the two case drain filters (Item 1) [Figure PM-59] (one for each hydro. motor) and clean thoroughly.

W-2103-1285

Lower the operator cab. Start the engine and operate the loader hydraulic controls. Stop the engine. Check for leaks. Check the fluid level in the reservoir and add as needed.

Remove the two case drain filters (Item 1) [Figure PM59] (one for each hydro. motor) and clean thoroughly.

When all the fluid is removed from the reservoir, connect and tighten the filters and case drain hoses.

Add the correct fluid to the reservoir until the fluid level is between the marks on the dipstick. DO NOT fill above the top mark on the dipstick.

PM-30

853 & 853H Bobcat Loader Operation & Maintenance Manual

HYDRAULIC / HYDROSTATIC SYSTEM (CONT’D)

Figure PM-61

Hydraulic Reservoir Breather Cap Figure PM-60

CD-15134

CD-15133

Make sure the baffle washer is installed in the hydraulic reservoir [Figure PM-61].

CD-15132

(See SERVICE SCHEDULE on Page PM-5) for the correct service interval.

Remove the breather cap and replace it with a new cap [Figure PM-60].

NOTE: Make sure the rubber gasket is installed on the breather cap (Inset).

PM-31

853 & 853H Bobcat Loader Operation & Maintenance Manual

SPARK ARRESTOR MUFFLER

Do not operate the loader with a defective exhaust system.

Maintenance Stop the engine. Open the rear door and rear grill.

Remove the plug (Item 1) [Figure PM-62] at the bottom of the muffler.

WARNING

Start the engine and run for about 10 seconds while a second person, wearing safety glasses, holds a piece of wood over the outlet of the muffler.

Stop engine and allow the muffler to cool before cleaning the spark chamber. Wear safety goggles.

Failure to obey can cause serious injury.

W-2011-1285

Stop the engine. Install and tighten the plug.

Lower the rear grill and close the rear door.

WARNING WARNING

When an engine is running in an enclosed area, fresh air must be added to avoid concentration of exhaust fumes. If the engine is stationary, vent the exhaust outside. Exhaust fumes contain odorless, invisible gases which can kill without warning.

Never use machine in atmosphere with explosive dust or gases or where exhaust can contact flammable material. Failure to obey warnings can cause injury or death.

W-2050-1285

W-2068-1285

WARNING

IMPORTANT

When the engine is running during service, the steering levers must be in neutral and the parking brake engaged. Failure to do so can cause injury or death.

This loader is factory equipped with a U.S.D.A. Forestry Service approved spark arrestor muffler. It is necessary to do maintenance on this spark arrestor muffler to keep it in working condition. The spark arrestor muffler must be serviced by dumping the spark chamber every 100 hours of operation.

W-2006-0284

Figure PM-62

If this machine is operated on flammable forest, brush or grass covered land, it must be equipped with a spark arrestor attached to the exhaust system and maintained in working order. Failure to do so will be in violation of California State Law, Section 4442 PRC. Make reference to local laws and regulations for spark arrestor requirements.

1

I-2022-0595

CD-15172

(See SERVICE SCHEDULE on Page PM-5) for correct service interval to clean the spark arrestor muffler.

PM-32

853 & 853H Bobcat Loader Operation & Maintenance Manual

TIRE MAINTENANCE

Recommended tire pressure must be maintained to avoid excessive tire wear and loss of stability and handling capability. Check for correct pressure before operating the loader.

Wheel Nuts Figure PM-63

Tire Mounting Tires are to be repaired only by an authorized person using the proper procedures and safe equipment. Tires and rims must always be checked for correct size before mounting. Check rim and tire bead for damage.

The rim flange must be cleaned and free of rust. The tire bead and rim flange must be lubricated with a rubber lubricant before mounting the tire, void excessive pressure which can rupture the tire and cause serious injury or death. During inflation of the tire, check the tire pressure frequently to avoid over inflation.

CD-15165

WARNING

(See SERVICE SCHEDULE on Page PM-5) for the service interal to check the wheel nuts. The correct torque is 105-115 ft.-lbs. (142-156 Nm) [Figure PM-63].

Do not inflate tires above specified pressure. Failure to use correct tire mounting procedure can cause an explosion which can result in injury or death.

Tire Rotation

W-2078-1285

Check the tires regularly for wear, damage and pressure.

(See Floor Pressure on Page SPEC-6) for the correct tire pressure.

IMPORTANT

Figure PM-64

Inflate tires to the MAXIMUM pressure shown on the sidewall of the tire. DO NOT mix brands of tires used on the same loader.

I-2057-0794

B-9976

Rear tires usually wear faster than front tires. To keep tire wear even, move the front tires to the rear and rear tires to the front [Figure PM-64].

It is important to keep the same size tires on each side of the loader. If different sizes are used, each tire will be turning at a different rate and cause excessive wear. The tread bars of all the tires must face the same direction.

PM-33

853 & 853H Bobcat Loader Operation & Maintenance Manual

FINAL DRIVE TRANSMISSION (CHAINCASE)

Removing Oil From The Chaincase

Checking And Adding Oil

Figure PM-66

The chaincase contains the final drive sprockets and chains and uses the same type of oil as the hydraulic / hydrostatic system (See LOADER SPECIFICATIONS on Page SPEC-3).

Figure PM-65 1 1

P1616

To drain the oil from the chaincase, remove the cover (Item 1) [Figure PM-66] which is installed over the drain plug at the rear of the chaincase.

Figure PM-67

P1551

To check the chaincase oil level, use the following procedure: Drive the loader on a level surface. Stop the engine.

Remove the plug (Item 1) [Figure PM-65] from the front of the chaincase housing.

1

If oil can be reached with the tip of your finger through the hole, the oil level is correct.

If the level is low, add oil through the check plug hole until the oil flows from the hole. Install and tighten the plug.

P1619

Remove the drain plug (Item 1) [Figure PM-67] and drain the oil into a container.

NOTE: When installing the drain plug into the chaincase, always use a NEW drain plug.

PM-34

853 & 853H Bobcat Loader Operation & Maintenance Manual

FAN GEARBOX

DRIVE BELT

Checking And Maintaining

Adjusting The Drive Belt

Figure PM-68

Figure PM-69

1

CD-15164

CD-10859

(See SERVICE SCHEDULE on Page PM-5) for the correct service interval.

(See SERVICE SCHEDULE on Page PM-5) for the service interval.

Raise the opeartor cab. (See Raising The Operator Cab on Page PM-8).

To adjust the drive belt between the engine flywheel and the hydrostatic pump pulley, use the following procedure:

Remove the plug (Item 1) [Figure PM-68] to check the lubricant level.

Stop the engine. Open the rear door.

Remove the belt shield holddown clips [Figure PM-69].

If the level is low, add SAE 90W gear lube through the check plug hole until the lubricant flows from the hole.

Install and tighten the plug.

Figure PM-70

CD-10860

Remove the belt shield [Figure PM-70].

PM-35

853 & 853H Bobcat Loader Operation & Maintenance Manual

DRIVE BELT (CONT’D)

Replacing The Drive Belt

Adjusting The Drive Belt (Cont’d)

Figure PM-72

Figure PM-71

5

1.25” (32 mm)

6

1

3 90°

2 CD-10861

4 B-13459

Stop the engine. Open the rear door.

Use the following tools to check the belt tension:

Raise the operator cab. (See Raising The Operator Cab on Page PM-8).

MEL1404-Bar MEL1406-Spring Scale

Remove the belt shield holddown clips [Figure PM-69].

1. Install the tool on the drive belt. The pin (Item 1) [Figure PM-71] must be pulled tight against the engine drive pulley.

Remove the belt shield [Figure PM-70].

Loosen the bolt (Item 4) [Figure PM-71] on the idler pulley tensioner housing.

2. Make a mark (Item 2) [Figure PM-71] on the cast flange just above the tool handle.

Remove the belt form the hydrostatic pump pulley and flywheel. Remove the drive belt [Figure PM-72].

3. Install the spring scale on the tool handle. The line of pull (Item 3) [Figure PM-71] on the spring scale must be at approximately 905 from the tool handle.

Install the new drive belt and adjust. (See Adjusting The Drive Belt on Page PM-35).

4. Loosen bolt (Item 4) [Figure PM-71] and jam nut (Item 5) [Figure PM-71].

5. Tighten adjustment nut (Item 6) [Figure PM-71] to increase belt tension; loosen to decrease belt tension.

6. Tighten bolt (Item 4) [Figure PM-71] and jam nut (Item 5) [Figure PM-71].

NEW BELT: (less than .5 hours use): with 14 lbs. (62 N) of force, the tool should move 1.25 inches (32 mm) (the width of the tool handle). Run the engine approximately 5 minutes and readjust the tension.

USED BELT: (more than .5 hour use): With 12 lbs. (52 N) of force, the tool should move 1.25 inches (32 mm) (the width of the tool handle).

Always readjust if a tension check results in a reading of less than 10 lbs. (44 N) of force.

PM-36

853 & 853H Bobcat Loader Operation & Maintenance Manual

LUBRICATING THE BOBCAT LOADER

Figure PM-75

Lubricate the loader as specified for the best performance of the loader (See SERVICE SCHEDULE on Page PM-5).

Record the operating hours each time you lubricate the Bobcat loader.

3

Always use a good quality lithium based multi-purpose grease when you lubricate the loader. Apply until extra grease shows.

Lubricate the following locations on the loader: Figure PM-73

CD-15170

3. Lift Arm Pivot Pin (Both Sides) [Figure PM-75].

Figure PM-76 1

4

CD-15169

1. Rod End Lift Cylinder (Both Sides) [Figure PM-73].

Figure PM-74

CD-15168

4. Base End Tilt Cylinder (Both Sides) [Figure PM-76].

2

CD-15171

2. Base End Lift Cylinder (Both Sides) [Figure PM-74].

PM-37

853 & 853H Bobcat Loader Operation & Maintenance Manual

LUBRICATING THE BOBCAT LOADER (CONT’D)

Figure PM-79

Figure PM-77

8 5

CD-15012 CD-15167

8. 250 Hours: Steering Lever Shaft (2) [Figure PM-79].

5. Rod End Tilt Cylinder [Figure PM-77].

PIVOT PINS

Figure PM-78

Figure PM-80

6 1

7

CD-15166

CD-15169

6. Bob-Tach Pivot Pin (Both Sides) [Figure PM-78].

All lift arm and cylinder pivots have a large pin held in position with a retainer bolt and lock nut (Item 1) [Figure PM-80].

7. Bob-Tach Wedge (Both Sides) [Figure PM-78].

Check that the lock nuts are tightened to 18-20 ft.lbs. (2427 Nm) torque.

PM-38

853 & 853H Bobcat Loader Operation & Maintenance Manual

BOB-TACH

WARNING Bob-Tach wedges must extend through the holes in attachment. Levers must be fully down and locked.

Failure to secure wedges can allow attachment to come off and cause injury or death.

W-2102-0588

Figure PM-81

1 P1543

Check for free movement of wedges and Bob-Tach levers.

The wedges (Item 1) [Figure PM-81] must extend far enough to engage the holes in the attachment.Bob-Tach wedges must extend through the holes in attachment.

PM-39

853 & 853H Bobcat Loader Operation & Maintenance Manual

PM-40

853 & 853H Bobcat Loader Operation & Maintenance Manual

SYSTEM SETUP & ANALYSIS BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . SA-5 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA-5 SERVICE CODES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA-3 ADVANCED HAND CONTROLS (AHC) . . . . . . . . . . . . . . . . . . . SA-6 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA-6

SYSTEM SETUP & ANALYSIS

SA-1

553 Bobcat Loader Operation & Maintenance Manual

SA-2

553 Bobcat Loader Operation & Maintenance Manual

SERVICE CODES

WARNING

The following list references the defect doces that are trasmitted to the instrument panel display which can occur. Some service procedures for correcting the problems can be found in this manual and other procedures must be performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL.

Instructions are necessary before operating or servicing machine. Read and understand the Operation & Maintenance Manual, Operator’s Handbook and signs (decals) on machine. Follow warnings and instructions in the manuals when making repairs, adjustments or servicing. Check for correct function after adjustments, repairs or service.

Untrained operators and failure to follow instructions can cause injury or death.

W-2003-0903

SERVICE CODES SUBJECT

DISPLAY READS

CONDITION

Engine Coolant Level

ECL 1

SHUTDOWN, No Coolant

Engine Coolant Temp.

EC-1.1

SHUTDOWN, Engine Temperature

EC-2.1

WARNING, Engine Temperature

EC 3

Wiring Not Connected

EC 4

Wiring Shorted

EC 5

High Sensor Voltage

EC 7

Sensor Out Of Range

EP 1

SHUTDOWN, Pressure

EP 2

WARNING, Pressure

EP 3

Wiring Not Connected

EP 4

Wiring Shorted

EP 5

High Sensor Voltage

EP 7

Sensor Out Of Range

ES 1

SHUTDOWN, Engine Speed Too High

ES-2.1

WARNING, Engine Speed Slightly High

ES-6

Sensor No Signal

ES-7

Sensor Out Of Range

AF 2

WARNING, Restriction Too High

AF 6

Sensor No Signal

b-2.1

WARNING, Bad Battery

b-2.2

WARNING, Battery Voltage

FUEL2

WARNING, Low Level

FUEL3

Wiring Not Connected

FUEL4

Wiring Shorted

FUEL5

High Sensor Voltage

FUEL7

Sensor Out Of Range

Engine Oil Pressure

Engine Speed

Air Filter

Battery

Fuel Level

SA-3

553 Bobcat Loader Operation & Maintenance Manual

SERVICE CODES SUBJECT Hydrostatic Charge Filter Condition

Hydrostatic Fluid

Hydrostatic Fluid Temperature

DISPLAY READS

CONDITION

HF1-2

WARNING, High Restriction

HF1-6

Sensor No Signal

HP 1

SHUTDOWN, Pressure

HP 2

WARNING, Pressure

HP 3

Wiring Not Connected

HP 4

Wiring Shorted

HP 5

High Sensor Voltage

HP 7

Sensor Out Of Range

HC 1

SHUTDOWN, Temperature

HC 2

WARNING, Temperature

HC 3

Wiring Not Connected

HC 4

Wiring Shorted

HC 5

High Sensor Voltage

HC 7

Sensor Out Of Range

SA-4

553 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

The following list shows effects which can happen to the loader, and the probable causes when the BICS Controller lights are off or flashing. Have the service procedure performed ONLY BY QUALIFIED BOBCAT SERVICE PERSONNEL.

Troubleshooting Chart

INDICAT OR LIGHT

LIGHT ON

LIGHT OFF

SERVICE CODES MEANS SYSTEM ERROR EFFECT ON (SEE YOUR BOBCAT DEALER FOR SERVICE) OPERATION OF LOADER WHEN NO. OF CAUSES LIGHT IS OFF FLASHES

Seat

Operate in Seat. No Operate in Seat.

Lift, tilt and traction functions will not operate.

Seat Bar

Seat Bar Down.

Lift, tilt and traction functions will not operate.

Valve

Traction

Control Valve Can Be Used.

Seat Bar Up.

Control Valve Cannot Be Used.

Lift, tilt and traction functions will not operate.

Loader can be Loader cannot Loader cannot be moved forward & be moved moved forward backward forward and and backward. backward.

2

Seat sensor circuit shorted to battery voltage*.

3 2

Seat sensor circuit shorted to ground.

Seat Bar sensor circuit shorted to battery voltage*.

Seat Bar sensor circuit shorted to ground.

3

1 2 3 3 1 2 3 4 5 6

Power

Valve output circuit is open.

Valve output circuit shorted to battery voltage*.

Valve output circuit shorted to ground.

Valve output circuit is not grounded.

Traction lock hold coil circuit is open.

Traction lock hold coil circuit shorted to battery voltage*.

Traction lock hold coil circuit shorted to ground.

Traction lock pull coil circuit is open.

Traction lock pull coil circuit is shorted to battery voltage* Traction lock pull coil circuit is shorted to ground

BICS Controller is operating correctly.

BICS Lift, tilt and Controller is traction functions not operating will not operate. correctly. *Normal BICS opearing boltae is less than the electrical system voltage. If voltage is more, the circuit is shorted to sysstem voltage.

NOTES: 1. If the seat and/or seat bar sensor circuits are open, the corresponding lights will be OFF. if one of the lights stay OFF, check the circuit for continuity. See Inspection & Maintenance Instructions in Preventive Maintenance section.

2. If all five lights falsh repeatedly, the voltage supply is greater than 16 volts or less than 9 volts.

3. Flashing patterns will repeat every 3.25 seconds.

4. If seat indicator light does not go ON, check for debris, dirt or objects under or behind the seat. The Seat Sensor Override◆ can be used if the seat sensor cannot be activated. ◆ Only on later loaders, and early loaders which have had BICS Controller and switch replaced.

NOTE: If the Seat Bar is lowered before the seat sensor is activated, a 10 second delay will occur before the valve and traction lights come on. (Only loaders with BICS controller S/N’s above 200,000 will have this delay.)

SA-5

553 Bobcat Loader Operation & Maintenance Manual

ADVANCED HAND CONTROLS (AHC) Troubleshooting Chart The AHC has a built-in diagnostic function which uses the two lights on the left handle.

Both lights will be ON when the AHC is functions correctly. The lights will flash in a specific pattern to indicate a problem (See Below). (See your Bobcat dealer for service information.)

FLASHING LIGHT MEANS SYSTEM PROBLEM (See Your Bobcat Dealer for Service) Number of Flashes Left Hand Light (Lift Circuit) Right Hand Light (Tilt Circuit)

1

2

3

4

Handle Not Calibrated

Actuator Not Calibated

Wiring Fault (Handle)

5

Wiring Fault Actuator Fault (Actuator)

NOTE: Flashing patterns will repeat every six seconds. One blink will occur if Right or Left Hand Control is not in neutral position before key is turned ON or engine is started.

SA-6

553 Bobcat Loader Operation & Maintenance Manual

MACHINE SIGN TRANSLATIONS DANGER (6579528) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-8 IMPORTANT (6560573) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-3 SERVICE SCHEDULE (6708212). . . . . . . . . . . . . . . . . . . . . . . MST-5 WARNING (6577754) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-8 WARNING (6579509) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-9 WARNING (6579510) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-7 WARNING (6579511) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-4 WARNING (6579639) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-9

MACHINE SIGN TRANSLATIONS

MST-1

553 Bobcat Loader Operation & Maintenance Manual

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553 Bobcat Loader Operation & Maintenance Manual

IMPORTANT (6560573)

MST-3

853, 853H Bobcat Loader Operation & Maintenance Manual

WARNING (6579511)

MST-4

853, 853H Bobcat Loader Operation & Maintenance Manual

SERVICE SCHEDULE (6708212)

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853, 853H Bobcat Loader Operation & Maintenance Manual

SERVICE SCHEDULE (6708212) (CONT’D)

MST-6

853, 853H Bobcat Loader Operation & Maintenance Manual

WARNING (6579510)

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853, 853H Bobcat Loader Operation & Maintenance Manual

DANGER (6579528)

WARNING (6577754)

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853, 853H Bobcat Loader Operation & Maintenance Manual

WARNING (6579639)

WARNING (6579509)

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853, 853H Bobcat Loader Operation & Maintenance Manual

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853, 853H Bobcat Loader Operation & Maintenance Manual

SPECIFICATIONS LOADER SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-3 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-6 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-6 Floor Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-6 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Machine Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-6 MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES - FOR USE ON 853 BOBCAT LOADERS. . . . . . . . . . . . . . . . . SPEC-7 ADDITIONAL PUBLICATIONS AND TRAINING MATERIALS SPEC-10

SPECIFICATIONS

SPEC-1

553 Bobcat Loader Operation & Maintenance Manual

SPEC-2

553 Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS Machine Dimensions • •

Dimensions are given for loader equipped with standard tires and dirt bucket and may vary with other bucket types.

All dimensions are shown in inches. Respective metric dimensions are given in millimeters enclosed by parentheses.

Where applicable, specification conform to SAE or ISO standards and are subject to change without notice.

96°

C

76.2 (1935)

48.3 (1227)

153.3 (2394)

40° 23.0 (584)

119.6 (3038) 93.1 (2365)

80.9 (2055)

26°

30° 8.0 (203)

101.8 (2586)

38.6 (980)

B

6.2 (157)

61.5 (1562)

A

128.5 (3264)

A

8.25 - 15 TIRES - 60.9 in. (1547 mm) 12 - 16.5 TIRES - 66.0 (1676 mm)

B

8.25 - 15 TIRES - 51.8 in. (1316 mm) 12 - 16.5 TIRES - 56.0 (1422 mm)

C

60 in BUCKET WIDTH - 61.5 in. (1562 mm) 66 in. BUCKET WIDTH - 68.1 in. (1731 mm)

MC-1113 Changes of structure or weight distribution of the loader can cause changes in control and steering response and can cause failure of the loader parts.

SPEC-3

853 & 853H Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS (CONT’D) Performance 853

853H (OPTION)

Rated Operating Capacity (SAE)

1700 lbs. (771 kg)

Tipping Load (SAE Rating)

3420 lbs. (1551 kg)

Operating Weight (SAE)

6500 lbs. (2948 kg)

SAE Breakout Force-Lift

6550 lbs. (2971 kg) 3300 lbf. (14904 kg)

-Tilt

3450 lbs. 1560 kg)

Axle Torque

5900 ft.-lbs. (8000 Nm)

Travel Speed Controls

0-6.2 MPH (10,0 km/hr.) (2800 RPM)

Vehicle Steering

Direction and Speed controlled by two hand levers.

Loader Hydraulics - Lift and Tilt

Controlled by separate foot pedals or optional hand controls.

Front Auxiliary (Opt.)

Controlled by electrical switch on RH steering lever.

Rear Auxiliary (Opt.)

Controlled by electrical switch on LH steering lever.

Secondary Front Aux. (853H Option)

Controlled by electrical switch on LH steering lever.

High Flow Aux. (853H)

Controlled by On/Off rocker switch in instrument panel.

Engine

Hand lever throttle; Key-Type starter switch & shutdown.

Starting Aid

Glow Plugs - Rocker switch activated.

BOSS activated glow plugs (If so equipped).

Service Brake

Two independent hydrostatic systems controlled by two hand operated steering levers.

Secondary Brake

One of the hydrostatic transmissions

Parking Brake Engine

Mechanical Disc, foot operated pedal.

Make/Model

Isuzu/4JB1PK-03

Fuel/Cooling

Diesel/Liquid

Horsepower (SAE)

Gross: 62 HP (46 kW) Net: 58 HP (43 kW)

Maximum Governed RPM

2600 RPM

Torque @ 1600 RPM (SAE)

Gross: 130 ft.-lbs (176 Nm) Net: 127 ft.-lbs. (172 Nm)

Number of Cylinders

Four

Displacement

169 cu. in. (2760 cu. cm.)

Bore/Stroke

3.66/4.016 (93/102)

Lubrication

Pressure System with Filter

Crankcase Ventilation

External

Air Cleaner

Dry replaceable cartridge with safety element

Ignition

Diesel-Compression

SPEC-4

853 & 853H Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS (CONT’D) Hydraulic System Pumps Pump Capacity-Primary -Secondary (853H Option) -Primary -High Flow (853H Option) Hydraulic Cylinders: Bore Diameter: Lift Cylinder (2) Tilt Cylinder (1) Rod Diameter: Lift Cylinder (2) Tilt Cylinder (1) Stroke: Lift Cylinder (2) Tilt Cylinder (1) Control Valve Fluid Lines Fluid Type

Engine driven, Gear type 18.0 GPM (68 L/min.) @ 2750 RPM 6 GPM (23 L/min.) @ 2750 RPM Sytem Relief at Quick Couplers 2800 to 2850 PSI (19650,8 kPa) 3250 to 3300 PSI (22408,8 to 22753,5 kPa) Filters (charge & inplement) Full flwo replaceable, 3 micron synthetic media element.

Doubleacting 2.25 (57,2) 3.25 (82,6) 1.50 (38,1) 1.50 (38,1) 33.5 (850,9) 18.17 (461,5) 3-spool, open center type w/float detent on lift and electrically controlled auxiliary spool.

SAE Standard tubelines, hoses and fittings Bobcat Fluid (P/N 6563328) If fluid is not available, use 10W-30/10W-40 Class SE motor oil for temperatures above 0°F (-18°C) or 5W-30 Class SE motor oil for temperatures below 0°F (-18°C)

Hydraulic Function Time: Raise Lift Arms Lower Lift Arms Bucket Dump Bucket Rollback Electrical

3.9 Seconds 3.4 Seconds 2.2 Seconds 1.9 Seconds

Alternator

Belt driven, 55 amp, open

Battery

12 volt; 700 cold cranking amps @ 0°F (-18°C) 170 minute reserve capacity

Starter

12 volt gear reduction type; 3.89 HP (2,9 kW)

Instrumentation

Gauges: Hourmeter, Fuel, Voltmeter, Engine Temperature.

Warning Lights: Engine Coolant Temperature, Engine Oil Pressure, Engine Coolant Level, Hydraulic System Temperature & Pressure, Hydraulic & Air Filters, RPM, Battery Condition, Fuel Level & Machine Hours. Display visual warnings & sounds audible alarm. Also controls automatic shutdown function and has diagnostic capability.

SPEC-5

853 & 853H Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS (CONT’D) Drive System Main Drive

Hydrostatic 4-wheel drive

Transmission

Infinitely variable tandem hydrostatic piston pumps, driving two fully reversing hydrostatic motors

Final Drive Chains

#100 HS endless roller chain and sprockets in sealed chaincase with oil lubrication

Total Engine to Wheel Reduction

47.27:1

Axle Size

2.76 (70,0 mm)

Wheel Bolts Capacities

(8) 9/16”

Cooling System

22 qts. (20,8 L)

Fuel

25 gals. (94 L)

Engine Oil W/Filter

8 qts. (7,5 L)

Hydraulic Reservoir

16 qts. (15,1 L)

Hydraulic/Hydrostatic System

8 gals. (30,0 L)

Chaincase Reservoir Tires

9 gals. (34,0 L)

Standard

8.25 - 15,6 ply rating

Flotation

12-16.5, 8 or 10 ply rating

Solid

8.00 - 16 solid

Recommended Pressure

Inflate tires to MAXIMUM pressure shown on the side wall of the tire. DO NOT mix brands of tires used on the same loader.

Floor Pressure

Std. Tires - Rated Load Unloaded Flot. Tires - Rated Load Unloaded

Front

Rear

39 PSI (265 kPa)

40 PSI (275 kPa)

33 PSI (225 kPa)

39 PSI (265 kPa)

31 PSI (210 kPa)

29 PSI (200 kPa)

26 PSI (175 kPa)

30 PSI (205 kPa)

SPEC-6

853 & 853H Bobcat Loader Operation & Maintenance Manual

MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES - FOR USE ON 853 BOBCAT LOADERS These and other attachments are approved for use on this model Bobcat loader. Do not use unapproved attachments.

Attachments not manufactured by Melroe Company may not be approved..

The versatile Bobcat loader quickly turns into a multi-job machine with a tight-fit attachment hook-up . . . from bucket to grapple to pallet fork to backhoe and a variety or other attachments. See your Bobcat loader dealer for more details on the attachments and field accessories shown on the following pages.

Increase the versatility of your Bobcat loader with a variety of bucket styles and sizes. Styles and sizes include:.

Combination Bucket BUCKETS DESCRIPTION -60 inch 6576902 66” Construction & Industrial Bucket W/Teeth 6576903 66” Construction & Insutrial with Teeth -66 inch 6703274 66” Low Profile Bucket W/Teeth 6703927 66” Low Profile with Teeth 6576893 60” Dirt Bucket 6704549 60” Utility Bucket 6704486 66’’ Utility Bucket 6705057 72’’ Utility Bucket 6558681 60’’ Fertilizer Bucket Perform a wide variety of job functions. The 6569905 66’’ Fertilizer Bucket versatile Melroe Bobcat Combination Bucket 6576900 66’’ Light Material Bucket is ideal for dozing, grappling, leveling, 6565774 78’’ Scraping Bucket digging, loading and dumping comes with or 709 Backhoe Rear Stabilizier without teeth.

(Recommended for use with backhoe) 811 Backhoe Angle Broom

Increase your backhoe performance.

Increase your versatility in a wide range of jobs with a set of frame mounted Bobcat Loader rear stabilizers.

Bobcat backhoe attachments are designed for the pipeliner, municipal worker or contractor, for high production digging.

Grader Scarifier Kit

Econo-Grader

Turn your Bobcat loader into a high performance grading machine. Designed for use by landscaping, asphalt, curb and gutter and concrete flatwork contractors.

Featuring a seven foot, six-way hydraulically controlled moldboard, operated with switches mounting on the loader’s steering levers for precise control.

Landscape Rake Model 5A Model 6A

Break up lumpy soil, pick up rocks as small a 3/4’’, grade, level and scarify in close quarters with the Bobcat Landscape Rake. Use it for ground preparation, for seeding, sodding and lawn leveling. Pick up rocks or hadpacked clumps of soil and dump them where you need them with the Bobcat Landscape Rake.

Two attachment options in one! Use it as an economical, but effective grader OR a box blade by utilizing locking end plates. Angle of the seven-foot moldboard is manually adjusted. Blade pitch adjusted by hydraulically tilting the Bob-Tach.

Vibratory Roller W/Smoth Drum or W/Padded Drum

Put your Bobcat loader to work and clean up almost everything in sight with the hydraulically driven Angle Broom attachment. Use it to sweep driveways, sidewalks, parking lots, loading docks, warehouses, or countless other applications.

Sweeper -60 inch -72 inch

Cleans up construction sites. Cutting edge for scraping mud. Sweeps parking lots, warehouse, docks, etc. Sweeps and collects debris with one attachment.

Planer (853H Only) Hydraulic Adjust Manual Adjust Pack and level smooth and easy. The Bobcat Loader Vibratory Roller features either a smooth or padded 48-inch wide drum. The roller provides up to 4156 pounds of force at 2153 vibrations per minute and is ideal for flatwork, trenching and asphalt patchwork contractors. A bolt-on smooth outer shell is also available for converting the padded drum to a smooth drum.

SPEC-7

The Bobcat becomes an effective, costefficient planing machine with the Melroe Planer attachment. Quickly removes deteriorated asphalt surfaces. An ideal tool for busy municipal and construction contractors.Some attachments may not be available from your local dealer.

853 & 853H Bobcat Loader Operation & Maintenance Manual

MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES - FOR USE ON 853 BOBCAT LOADERS (CONT’D) Scarfier

Auger Model 12 Model 12H Model 20 Model 20H

Adjustable depth skids for presetting digging depth. Prepares hard-packed ground for digging or landscaping. Oneto-seven-tooth versatility. Standard fivetooth unit with additional teeth available.

Rips asphalt for removal.

Industrial Bucket Grapple -60 inch -66 inch

Dig 6’’ - 36’’ holes with speed and plumbline accuracy. Utilizing Bobcat Loader hydraulics, the heavy-duty hydraulic auger bites in with low speed, high torque power. Because of a unique knuckle-joint design, the auger will dig vertical holes even though the Bobcat Loader is working on uneven terrain.

Industrial Fork Grapple -66 inch

Clamp onto heavy and odd-shaped objects, and move them with ease. The Bobcat Industrial Grapple is the ideal attachment for handling scrap, waste or pipe. It’s built strong for tough working conditions.

Pallet Fork (30, 36, 42 & 48 inch teeth available)

The Fork Grapple is perfect for handling irregular-shaped metal and other assorted scrap and heavy-duty agricultural applications.

Hydraulic Breaker Model 2560 Model 3500

Trencher LT204 LT405 (853 Only)

Versatile trenching ability. Use these Bobcat trencher attachments for a variety of jobs. The LT204 digs two or three feet deep and 4 to 12 inch trenching widths.

The LT405 digs three to five feet deep and 5 to 12 inches wide. Hydraulic sideshift to get close to walls. Optional trench cleaner.

Utility Fork/Grapple -60 inch -66 inch -72 inch Farm Grapple

Cut down on daily hand chores and free up your time. The Bobcat Loader Utility Fork and Grapple is the ideal attachment for handling bundled material, loose straw, and manure.

Tiller

Move bulky or bagged materials in one load. Hook on a pallet fork and move your bagged or bulk material fast. Ideal for all kinds of farm chores and fertilizer handling. In industrial plants and landscaping, handle baled or pallet materials.

Stump Grinder (853H Only)

Up to 500 ft.-lb. impact energy class.

Backhoe or loader mounting. 2-position loader mounting frame for vertical and horizontal breaking. Quick-change tool system - variety of tools available. Low recoil operating cycle. *SPECIAL APPLICATIONS KIT WHICH INCLUDES A 1/2 INCH LEXAN FRONT DOOR WITH 1/4 INCH TOP AND REAR WINDOWS MUST BE USED WHEN OPERATING THE BOB-TACH MOUNTED HYDRAULIC BREAKER.

Wheel Saw (853H Only) WS12 WS18

Remove stumps from hard to access areas. The stump grinding attachment is ideal for landscapers, rental yards and stump removal companies. Sideshift a full 50’’, cut 20’’ below grade and telescope 11’’ forward and backward, all from the operator’s seat. The Bobcat Loader mounted stump grinder adds versatility and maneuverability, when compared to tow-behind stump cutters.

Till and mix for seed or sod bed preparation.

The Bobcat Tiller attachment is great for jobs such as breaking up clumps and mixing compost or other materials into existing soil. The Bobcat Tiller features: * 52-inch working width. * Tills at a maximum 6-inch depth. * Bi-directional rotation allows the loader to be driven forward or in reverse.

Precise cuts through concrete, asphalt, rebar or frozen ground. Excellent for a variety of road repair or utility applications. Two models for 12- or 18inch cutting depths. Hydraulic depth and sideshift controlled from the operator’s seat.

Some attachments may not be available from your local dealer.

SPEC-8

853 & 853H Bobcat Loader Operation & Maintenance Manual

MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES - FOR USE ON 853 BOBCAT LOADERS (CONT’D) Box Scraper Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Longwood Grapple Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Bale Handler Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Grade, scarify, backfill or level. With this tool, a Bobcat Loader operator can grade, scarify, backfill or level in close quarters. Use it on road construction, lawn leveling, ripping hard packed soil or gravel, piling and leveling dirt, manure or other materials. Drag a load or doze it right where you need it.

Turn your Bobcat Loader into a high performance log handler. The Longwood Grapples are made of high quality steel providing strength and durability for rough working conditions.

Manage large round bales easily with the Bale Handler. It’s a handy and efficient way to move bales from the ground onto a trailer or into a bale feeder. The Bale Handler can be replaced with other attachments quickly, thanks to the BobTach™ mounting system.

Snow Blower Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Tree Transplanter Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Angle Blade Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Blow snow with this perfect winter cleanup tool. Blow snow off driveways, sidewalks or in those tight quarters where only a Bobcat skid-steer loader can manage. Powered from the Bobcat Loader auxiliary hydraulics. Rotational spout directs snow where you want it to go.

Turn your Bobcat Loader into a tree transplanter. The Tree Transplanter will dig trees and also load them on a truck or trailer in minutes. It’s simple to operate with complete control from the operator’s seat.

Remove heavy snow from the surface, before it’s compacted. It’s the ideal attachment for cleaning sidewalks, driveways, parking lots, alleys, service stations and warehouse lots. Use a heavy duty version for dozing and backfilling dirt.

Rake Approved by Melroe Comapny & Sold through Bobcat Loader Dealers

Demolition Shear Tracks Approved by Melroe Comapny & Approved by Melroe Comapny & Sold through Bobcat Loader Dealers Sold through Bobcat Loader Dealers

Turn your Bobcat Loader into a versatile landscape machine. The triple-duty Rake rips up soil with scarifier teeth, blades down high spots and fills holes, and rakes the surface to remove big rocks and debris.

You’ll get better performance in sand, snow and mud. Float over soft, sandy, or muddy ground and get better traction on slippery surfaces with over-tire metal or rubber tracks.

*SPECIAL APPLICATIONS KIT WHICH INCLUDES A 1/2 INCH LEXAN FRONT DOOR WITH 1/4 INCH TOP AND REAR WINDOWS MUST BE USED WHEN OPERATING THE BOB-TACH MOUNTED HYDRAULIC BREAKER.

Turn your Bobcat loader into a demolition contractor’s dream! The LaBounty Shear cuts through a variety of materials such as rebar, scrap metal, concrete, pipe, etc. The 360o rotation capability allows the shear to work in a variety of positions.

Some attachments may not be available from your local dealer.

NOTE: Use of unapproved attachments and unapproved machine modifications will void contracts and warranties and must conform to all local, state, federal and global regulations.

SPEC-9

853 & 853H Bobcat Loader Operation & Maintenance Manual

ADDITIONAL PUBLICATIONS AND TRAINING MATERIALS

OPERATOR’S HANDBOOK

The following publications are also available for your Bobcat Loader. You can order them from your Bobcat dealer.

6728021

OPERATION & MAINTENANCE MANUAL - gives basic operation instructions and safety warnings.

6724034

SKID STEER LOADER OPERATOR TRAINING COURSE - complete instructions on the correct operation and the routine maintenance of the BOBCAT loader.

6722720

SERVICE MANUAL

- Introduces operator to step-by-step basics of SkidSteer loader operation. Also available in Spanish P/N 6724036.

6724012

OPERATOR SAFETY VIDEO 6724793 - complete maintenanceand overhaul instructions for your BOBCAT loader.

- Provides basic safety instructions.

SAFETY MANUAL 6556500

PARTS MICROFICHE

- provide basic safety procedures and warnings for your BOBCAT loader. Also available in Spanish P/N 6724451

Up-to-date PARTS information is also available.

See your BOBCAT dealer.

SPEC-10

853 & 853H Bobcat Loader Operation & Maintenance Manual

WARRANTY Bobcat Loaders Bobcat Company warrants to its authorized dealers and authorized dealers of Bobcat Equipment Ltd., who in turn warrant to the original buyer (owner), that each new Bobcat loader will be free from proven defects in material and workmanship for twelve months after delivery to the original buyer (owner).

During the warranty period, the authorized Bobcat dealer shall repair or replace, at its option, without charge for parts and labor, any part of the Bobcat product which fails because of defects in material or workmanship. The owner shall provide the authorized Bobcat dealer with prompt written notice of the defect and allow reasonable time for replacement or repair. Bobcat Company may, at its option, request failed parts to be returned to the factory. Travel time of mechanics and transportation of the Bobcat product to the authorized Bobcat dealer for warranty work are the responsibility of the owner.

The warranty does not apply to tires or other trade accessories not manufactured by Bobcat Company. The owner shall rely solely on the warranty, if any, of the respective manufacturers thereof.

The warranty does not cover replacement of scheduled service items such as oil, filters, tune-up parts, and other high-wear items. The warranty does not cover damages resulting from abuse, accidents, alterations, use of the Bobcat product with any bucket or attachment not approved by Bobcat Company, air flow obstructions, or failure to maintain or use the Bobcat product according to the instructions applicable to it.

THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES (EXCEPT THOSE OF TITLE), EXPRESSED OR IMPLIED, AND THERE ARE NO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL BOBCAT COMPANY OR THE AUTHORIZED BOBCAT DEALER BE LIABLE FOR DOWNTIME EXPENSES, LOSS OF MACHINE USE OR OTHER INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES.

6570162 (5-00)

Printed in U.S.A.