PDF DOWNLOAD Bobcat 553 Operation & Maintenance Manual 6902827

Operation & Maintenance Manual S/N 528011001 & Above S/N 539411001 & Above

EQUIPPED WITH BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) 6902827 (8-04) Revised (3-05) (4)

Printed in U.S.A.

©Bobcat Company 2005

OPERATOR SAFETY WARNINGS CORRECT

WARNING

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.

B-10731a

Never use the loader without instructions. See machine signs (decals), Operation & Maintenance Manual, and Operator’s Handbook.

CORRECT

CORRECT

WRONG

B-15570

B-15572

B-15571

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.

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

WRONG

WRONG

WRONG

B-15573

B-15574

B-15575A

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

Never exceed Capacity.

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

WRONG

B-15576

B-15577 B-16102

B-15578

Rated

Operating

Never carry riders.

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

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

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™) OSW09-0504

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

SYSTEM SETUP & ANALYSIS

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

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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 Bobcat Loader. 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 9001:2000 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 9001:2000 CERTIFIED

ISO 9001:2000 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 9001:2000 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 9001:2000. Only certified assessors, like BSI, can grant registrations.

ISO 9001:2000 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.

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) 6657635

BATTERY 6674687 FLUID, Hydraulic/Hydrostatic 6903117 - (2.5 gal.)

6903118 - (5 gal.)

6903119 - (55 gal.)

FUEL FILTER 6667352

AIR FILTER, Outer 6672467

RADIATOR CAP 6646678

AIR FILTER, Inner 6672468

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

HYDROSTATIC FILTER 6661248

PROPYLENE GLYCOL ANTI-FREEZE, Concentrate 6724354

MOTOR OIL 6657299 SAE 15W40 CE/SG (12 QTS.) 6724558 SAE 15W40 CE/SG (1 GAL.) 6657301 SAE 10W30 CE/SG (12 QTS.) 6724557 SAE 10W30 CE/SG (1 GAL.) 6657303 SAE 30W CE/SG (12 QTS.) 6724559 SAE 30W CE/SG (1 GAL.)

V

6674204 SAE 15W40 CE/SG (2.5 GAL.) 6674205 SAE 10W30 CE/SG (2.5 GAL.) 6674206 SAE 30W CE/SG (2.5 GAL.)

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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

Figure 1

1 1

N-09931

The engine serial number (Item 1) [Figure 2] is located on the engine block.

DELIVERY REPORT P10725

Figure 3

LOADER SERIAL NUMBER The loader serial number plate is located inside the operator cab on the loader frame [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 OPERATOR SEAT WITH SEAT BELT SEAT BAR GRAB HANDLES

LIFT CYLINDER

STEERING LEVER TILT CYLINDER † BUCKET

QUICK COUPLERS

BUCKET STEPS

SAFETY TREAD

REAR WINDOW OPERATOR CAB (ROPS & FOPS) UPRIGHTS REAR GRILL LIFT ARM TAIL LIGHT

LIFT ARM SUPPORT DEVICE

REAR LIGHT

REAR DOOR

* TIRES

B-15064 B-15065

Options or Field Accessories - not standard equipment. * TIRES - The Bobcat loader is factory equipped with standard tires. See Specifications Section and your Bobcat dealer for † ●

available tires.

BUCKET - Several different buckets and other attachments are available from your Bobcat dealer.

ROPS, FOPS - Roll Over Protective Structure, per SAE J1040 and ISO 3471, and Falling Object Protective

Structure 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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FEATURES AND ACCESSORIES • • • • • • •

Standard Items Model 553 Bobcat loaders are equipped with the following standard items: • • • • • • • • • • • • • • •

Adjustable Cushion Seat Auxiliary Hydraulics, Front Bob-Tach Bobcat Interlock Control System Instrumentation: Hourmeter, Engine Temperature and Fuel Gauges and Warning Lights Lift Arm Support Device Lights, Front & Rear Operator Cab (with ROPS / FOPS Approval) Parking Brake Rocker Switch Activated Glow Plugs Seat Bar Seat Belt Spark Arrestor Muffler Tires, 27 x 8.5-15 4PR (Machine Width-47 inches) Window, Rear

• • •

Specifications subject to change without notice.

Attachments • • • •

Options and Accessories Below is a list of some equipment available form your Bobcat Loader dealer as Dealer and / or Factory Installed Accessories and Factory Installed Options. See your Bobcat dealer for other available options, accessories and attachments.

• • • • • • • • • • • • • • • • • • • • • • • •

Rotating Beacon or Strobe Light Seat Belt - 3 inch wide Single Point Lift Sound Cab (Reduces Noise at Operator’s Ear) Special Applications Kit Suspension Seat Tires 27 x 8.5 - 15 Bobcat Heavy Duty 6PR (Machine Width 48 inches) Vinyl Cab Enclosure Window, Top Weighlog

• • • • • • • • • • • • • • • • • • •

Back-up Alarm & Horn Cab Enclosure Cab Heater Kit Catalytic Exhaust Purifier Coolant Level Sensor Cover Kit (Hydraulic Reservoir Area) Deluxe Cab Deluxe Cab w/Heater Engine Heater Hydraulic Bucket Positioning (Includes On/Off Selection) Fire Extinguisher Flasher Lights Falling Object Protective Structure (FOPS) Top Front Door Fuel Shut-Off Heater Horn Insect Screen Keyless Start System Large Operator Seat Bar Kit Locking Fuel Cap Low Coolant Sensor Kit Rear Wiper Rental Kit

IX

Angle Broom Auger Backhoe Blades V-Blade Snow Blade Angle Blade Breaker Buckets Cutter Crusher Digger Dumping Hopper Grapple Landplane Pallet Fork Scarifier Super Scraper Snow Blower Soil Conditioner Stump Grinder Sweeper Tiller Tracks Trencher Utility Fork X-Change Frame

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SAFETY MACHINE SIGNS (DECALS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .XVI SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XIII Before Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XIII Fire Prevention. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XV Safe Operation Is The Operator’s Responsibility. . . . . . . . . . . .XIV Safe Operation Needs A Qualified Operator . . . . . . . . . . . . . . .XIV

XI

SAFETY

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available from your dealer in an English edition or one of many other languages. See your Bobcat dealer for more information on translated versions.

SAFETY INSTRUCTIONS Before Operation Carefully follow the operating instructions in this manual.

and

maintenance

•

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

The Bobcat 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 Skid-Steer Loader Operating Training Course is available through your Bobcat dealer. This course is intended to provide rules and practices of correct operation of the Bobcat Loader. The course is available in English and Spanish versions.

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.

•

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

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 machine - 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

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.

1-888-258-0808 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.)

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

SI SSL-0604 XIII

553 Bobcat Loader Operation & Maintenance Manual

SAFETY INSTRUCTIONS (CONT’D)

A Qualified Operator Must Do The Following:

Safe Operation Is The Operator’s Responsibility

Understand the Written Instructions, Rules and Regulations

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

Carefully read the message that follows.

•

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

•

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.

WARNING WARNING

Have Training with Actual Operation

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

•

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.

W-2001-1285

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

I-2019-0284

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

Know the Work Conditions •

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.

Safe Operation Needs A Qualified Operator

•

For an operator to be qualified, he or she must not use drugs or alcoholic drinks which impair alertness or coordination while working. An operator who is taking prescription drugs must get medical advice to determine if he or she can safely operate a machine.

Know the location of any underground lines. Call local utilities or the TOLL FREE phone number found in the Before Operation Section 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.

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 Operation & Maintenance Manual.

SI SSL-0604 XIV

553 Bobcat Loader Operation & Maintenance Manual

Manual for connecting the battery and for jump starting.

SAFETY INSTRUCTIONS (CONT’D) 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 cleaning the spark arrestor muffler (if equipped).

Figure 1

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.

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!

•

Use the procedure in the Operation & Maintenance

Know where fire extinguishers and first aid kits are located and how to use them. Fire extinguishers are available from your Bobcat dealer [Figure 1].

Sl SSL-0604

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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.

6708105 6731571

6565990 6708358 6718703

6702255 6577754 (2)

6579510

6715465

6706809 6735140

6717343 (2) Under Cab 6710358

6702301 6561383 (Behind Bob-Tach)

6579528 (Behind Lift Arm Crossmember)

6702302

B-15064

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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.

6578368

6560573

6706558 6708929

6905014 (3)

6714364 6734534

Located inside the engine compartment

B-15065

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OPERATING INSTRUCTIONS ATTACHMENTS AND BUCKETS . . . . . . . . . . . . . . . . . . . . . . . . OI-17 Choosing The Correct Bucket . . . . . . . . . . . . . . . . . . . . . . . . OI-17 Installing The Bucket or Attachment . . . . . . . . . . . . . . . . . . . OI-18 Pallet Forks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-17 Removing The Bucket Or Attachment . . . . . . . . . . . . . . . . . . OI-19 BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . . OI-4 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-4 Lift Arm By-Pass Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-4 Traction Lock Override. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-5

OPERATING INSTRUCTIONS

DAILY INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-11 Daily Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . OI-11 ENGINE SPEED CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-5 GETTING READY FOR OPERATION . . . . . . . . . . . . . . . . . . . . OI-12 HYDRAULIC CONTROLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-9 Bucket Position Valve Operation (If Equipped) . . . . . . . . . . . . OI-9 Foot Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-9 Quick Couplers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-10 Relieving Hydraulic Pressure. . . . . . . . . . . . . . . . . . . . . . . . . OI-10 INSTRUMENT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-3 Left, Right And Accessory Panels . . . . . . . . . . . . . . . . . . . . . . OI-3 LIFTING THE LOADER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-24 OPERATING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-20 Backfilling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-22 Digging Into The Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-22 Emptying the Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-21 Filling The Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-21 Leveling The Ground (Using Lift Arms In Float Position). . . . OI-22 Operating With A Full Bucket. . . . . . . . . . . . . . . . . . . . . . . . . OI-20 PARKING BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-5 PARKING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . . OI-23 SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . OI-7

OI-1

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OPERATING INSTRUCTIONS (CONT’D) STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-14 Cold Temperature Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-16 Normal Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-14 Warming The Hydraulic/Hydrostatic System . . . . . . . . . . . . . OI-16 STEERING LEVERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-6 STOPPING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . OI-7 Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-7 STOPPING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-16 TOWING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OI-25 TRANSPORTING THE BOBCAT LOADER . . . . . . . . . . . . . . . . OI-23 Fastening To Transport Vehicle . . . . . . . . . . . . . . . . . . . . . . . OI-24 Loading Onto Transport Vehicle. . . . . . . . . . . . . . . . . . . . . . . OI-23

OI-2

553 Bobcat Loader Operation & Maintenance Manual

INSTRUMENT PANELS

Figure OI-2 Right Panel

Left, Right And Accessory Panels

10 Figure OI-1

12

Left Panel

6 7

8

11 13

9

5

P-31955

4 Figure OI-3

3

Accessory Panel 1

2

P-31954A

15 14

The instrument panels are shown in [Figure OI-1], [Figure OI-2] and [Figure OI-3].

The table below shows the DESCRIPTION and FUNCTION/OPERATION for each of the components of the instrument panels.

16 P-10742

REF. NO

DESCRIPTION

FUNCTION / OPERATION

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 Page OI5.)

2

PRESS TO OPERATE BUTTON

3

KEY SWITCH

For starting and stopping the engine.

4

TRANSMISSION WARNING LIGHT

Light is ON when transmission charge pressure is low, hydraulic filter needs replacement or fluid temperature is high. Stop the engine if the light comes ON.

5

ENGINE WARNING LIGHT

Light is ON when engine oil pressure is low or coolant temperature is high. Stop the engine if the light comes ON.

6

PREHEAT BUTTON

Press to preheat the glow plugs to aid cold temperature starting. Switch will turn off when released.

7

LIGHT SWITCH (Opt./FA)

Press the left side of switch to turn lights ON; press right side to turn OFF.

8

PARKING BRAKE

Press the left side of switch to engage; press right side to disengage.

9

BUCKET LEVEL SWITCH (Opt./FA)

Controls the ON/OFF function of the available bucket position valve.

10

HOURMETER

Records the total operating hours of the loader.

11

FUEL GAUGE

Shows the amount of fuel in the fuel tank.

12

VOLTMETER

Shows the condition of the battery and the rate of charge.

13

ENGINE TEMPERATURE

Shows the engine coolant temperature.

14

REAR WIPER/WASHER (FA)

*Controls operation of the available rear window wiper and washer.

15

HAZARD SWITCH/HAZARD INDICATORS (Opt./FA)

*Controls the available hazard lights. (Hazard Lights is a separate available accessory.) Both panel indicators blink for hazard condition when the hazard switch is ON. A red light indicates fuse out for taillights, headlights, work lights, etc.

16

BEACON OR STROBE SWITCH (Opt./ FA)

*Controls the available flashing beacon or strobe light.

(Functions Only When The Seat Bar Is Down.) Activates BICS System when the Seat Bar is down and operator is seated in the operating position.

*Can be installed if you have a Deluxe Cab or a Cab Enclosure installed.

(Opt.) - Option; (FA) - Field Accessory

OI-3

553 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

Lift Arm By-Pass Control

Description

Figure OI-5

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.

NOTE: Press the green PRESS TO OPERATE Button again if the Seat Bar is raised and lowered or key is turned off.

1

Figure OI-4 1

P-34709

2 3

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.

4 5

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.

P-10157

The lift, tilt and traction drive functions are interlocked with the Seat Bar. The BICS controller is located inside the cab; behind and to the right of the operator's seat [Figure OI-4] There are five green lights on the BICS controller and all must be ON to operate the loader.

The light functions are as follows [Figure OI-4]: 1. SYSTEM ACTIVATED - ON when the green PRESS TO OPERATE Button is activated.

2. SEAT BAR - ON when the seat bar is down.

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

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

5. POWER - ON when the Controller is operating correctly.

NOTE: If any of the lights are off or blinking, (See BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) on Page PM-12) or (See Troubleshooting Chart on Page SA-5).

OI-4

553 Bobcat Loader Operation & Maintenance Manual

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

ENGINE SPEED CONTROL Operation

Traction Lock Override Figure OI-7

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.

1

W-2045-1086

Figure OI-6

P-10752

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

1 P-31954

(Functions Only When The Seat Bar is Raised) 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.

•

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

•

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

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.

NOTE: The traction Lock Override button will function if brake is engaged or disengaged position.

OI-5

553 Bobcat Loader Operation & Maintenance Manual

The steering levers (Item 1) [Figure OI-9] are on the right and left side in front of the seat.

PARKING BRAKE Operation

Move the levers smoothly. Avoid sudden starting and stopping.

Figure OI-8

Figure OI-10

MC-1914A

1

P-31954A

Press the left side of the switch (Item 1) [Figure OI-8] to engage the parking brake. Press the right side to disengage.

STEERING LEVERS 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.

PI-1849A

The steering levers control forward and reverse travel of the loader [Figure OI-10].

W-2046-0595

Forward Travel - Push both levers forward.

Figure OI-9 Reverse Travel - Pull both levers backward.

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

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

1

Slow travel speed, push levers forward only small amount.

To increase travel speed, push the levers farther forward.

For maximum pushing force, push the levers forward only a small amount with the engine at full RPM.

P-10712

OI-6

553 Bobcat Loader Operation & Maintenance Manual

STOPPING THE BOBCAT LOADER

WARNING

Procedure When the steering levers are moved to the NEUTRAL POSITION, the hydrostatic transmission will act as a service brake and stop the loader.

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 the seat bar, move pedals until both lock.

• Move auxiliary control out of detent position.

SEAT BAR RESTRAINT SYSTEM Figure OI-11

W-2164-1294

Figure OI-12 SEAT BAR 1 2

Seat Bar

1 Pedal Linkage

P10718

3

Interlock Shield

The seat bar restraint system has a pivoting seat bar (Item 1) [Figure OI-11] with arm rests and has spring loaded interlocks for the lift and tilt control pedals.

MC-1668A

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 spring loaded interlocks (Item 1) [Figure OI-12] control the locking and unlocking functions of the control pedals.

The interlocks require the operator to lower the seat bar in order to operate the foot pedal controls.

The interlocks (Item 1) [Figure OI-12] require the operator to lower the seat bar (Item 2) [Figure OI-12] which allows the operator to move the foot pedals to control the lift and tilt functions.

When the seat bar is up, the lift and tilt control pedals are locked when returned to the NEUTRAL POSITION.

When seat bar is lowered, it pushes the interlocks (Item 1) [Figure OI-12] down on both sides, releasing the pedal linkages (Item 3) [Figure OI-12] from the interlocks.

WARNING

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

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.

WARNING

W-2046-0595

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

OI-7

553 Bobcat Loader Operation & Maintenance Manual

SEAT BAR RESTRAINT SYSTEM (CONT’D) Figure OI-13 SEAT BAR Seat Bar

Interlock Interlock Shield MC-1668B

When the seat bar is raised, spring forces raise the interlocks [Figure OI-13].

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

(See SEAT BAR RESTRAINT SYSTEM on Page PM-11)

OI-8

553 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-14] to raise the lift arm.

WARNING

Push on the top (toe) of the pedal (Item 3) [Figure OI14] 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) of the pedal (Item 3) [Figure OI-14] all the way forward until it locks into float position.

Figure OI-14

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

3

Push the bottom (heel) to unlock from the float position.

1 2

Tilt Operation P-10762A

The right pedal controls the movement of the bucket.

Push the top (toe) of the pedal (Item 4) [Figure OI-14] to tilt the bucket forward.

Push the bottom (heel) of the pedal (Item 5) [Figure OI-14] to tilt the bucket backward.

B-7440

Bucket Position Valve Operation (If Equipped) 4

The function of the bucket position valve is to keep the bucket in the same approximate position it is placed in before beginning the upward lift cycle.

1 5

Bucket positioning functions automatically during the upward lift cycle only.

P-10762A

The bucket positioning function can be turned OFF with the bucket level switch. (See Left, Right And Accessory Panels on Page OI-3).

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-14] control the hydraulic cylinders for the lift and tilt functions.

OI-9

553 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONROLS (CONT’D)

Figure OI-16

Quick Couplers

WARNING

1

2

B-2408A

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 B-2409B

P-10750A

Figure OI-15

The right steering lever (Item 1) [Figure OI-16] is also the control lever for the front auxiliary hydraulics.

Move the right steering lever to the left or to the right to activate the auxiliary hydraulics and operate an attachment (Example: To open or close grapple teeth).

Move the lever in the opposite direction to reverse the action of the attachment [Figure OI-16].

Move the steering lever all the way to the right (Item 2) [Figure OI-16] to put the control valve into the locked position for a constant flow of hydraulic fluid under pressure to the quick couplers.

P-10711

To Connect: Remove dirt or debris from the surface of both the male and female couplers, 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-15].

To Disconnect: Hold the male coupler. Retract the sleeve on the female coupler until the couplers disconnect.

WARNING

NOTE: (See AUXILIARY CONTROL LOCKBOLT on Page PM-35) to remove auxiliary control lockbolt.

Move the auxiliary control lever out of the locked position before leaving the operator cab.

Relieving Hydraulic Pressure With the engine stopped and attachment flat on the ground, move the right steering lever to the left and to the right several times. This relieves pressure that can be trapped in the auxiliary circuit which would make it difficult to engage quick couplers from an attachment.

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

OI-10

553 Bobcat Loader Operation & Maintenance Manual

DAILY INSPECTION Figure OI-17

6734534

Maintenance work must be done at regular intervals.

Failure to do so will result in excessive wear and early failures. The Service Schedule [Figure OI-17] is a guide to correct maintenance of the Bobcat loader. It is located inside the rear door of the loader and also (See SERVICE SCHEDULE (6734534) on Page MST-3).

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.

Daily Inspection and Maintenance • • •

• • • • • • •

Engine Oil Level Hydraulic/Hydrostatic Fluid Level Engine Air Filter Condition Indicator, Check System for Damage or Leaks Engine Coolant System, Check System for Damage or Leaks Operator Cab and Cab Mounting Hardware Grease Pivot Pins (Lift Arms, Bob-Tach, Cylinders, Bob-Tach Wedges) Tires, Check for Wear, Damage, Correct Air Pressure Fuel Filter, Remove Trapped Water Parking Brake Loose or Broken Parts Lift Arm Support Device.

Bobcat Interlock Control System (BICS) Safety Treads and Safety Signs (Decals)

•

Seat Belt

• • •

W-2003-0903

IMPORTANT PRESSURE WASHING DECALS Never direct the stream at a low angle toward the decal that could damage the decal causing it to peel from the surface.

Direct the stream at a 90 degree angle and at least 12 inches (300 mm) from the decal. Wash from the center of the decal toward the edges.

I-2225-0204

NOTE: 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.

OI-11

553 Bobcat Loader Operation & Maintenance Manual

Figure OI-19

GETTING READY FOR OPERATION Figure OI-18

1

2

P-10159

Read the Operation & Maintenance Manual and the Operator’s Handbook (Item 1) [Figure OI-18] before operating the loader.

WARNING

P-10721

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

Use the bucket or attachment steps, grab handles and safety treads (on top the loader lift arm crossmember and main frame) to get on and off the loader [Figure OI-19].

W-2001-0502

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 damaged. Replacement treads are available from your dealer.

The Operation & Maintenance Manual and other manuals can be kept in a box provided at the right hand side of the operator seat (Item 2) [Figure OI-18].

OI-12

553 Bobcat Loader Operation & Maintenance Manual

Figure OI-22

GETTING READY FOR OPERATON (CONT’D) Figure OI-20

1 P-10716

Lower the seat bar [Figure OI-22].

P-05131A

Be sure the parking brake is engaged.

Pull the seat lever (Item 1) [Figure OI-20] and adjust the seat position for comfortable operation of the loader controls.

All controls must be in NEUTRAL POSITION before you start the engine (See Normal Starting on Page OI-14).

After you start the engine, press the green PRESS TO OPERATE Button on the left instrument panel to operate lift, tilt and traction functions.

WARNING

Figure OI-23

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-2046-0595

Figure OI-21

P-10718

Keep your hands on the steering levers and feet on the pedals while seated in the loader [Figure OI-23].

P10720

Fasten the seat belt snugly and adjust it so that the buckle is centered between your hips [Figure OI-21].

OI-13

553 Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE

Normal Starting

Figure OI-24

Figure OI-26

WRONG

B-3724

P-10716

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-26].

W-2050-1285

Figure OI-25

WRONG

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-14

553 Bobcat Loader Operation & Maintenance Manual

Set the engine speed control to 1/2 SPEED position (Item 2) [Figure OI-27].

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

Turn the key to the ON POSITION (Item 3) [Figure OI27]. The engine and transmission warning light will be ON when the key is on and the engine is stopped.

IMPORTANT

Turn the key to START POSITION (Item 4) [Figure OI27] 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-27].

I-2034-0284

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

Figure OI-27 NOTE: Upon failed start, if the key is turned OFF, wait for at least three seconds before turning the key ON to reset the fuel timer module.

1

2

3

4

5

PI-02188

Put the foot pedals and steering levers in NEUTRAL POSITION (center) (Item 1) [Figure OI-27].

OI-15

553 Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (CONT’D)

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

Cold Temperature Starting If the temperature is below 32° F(0° C), use the following procedure to make starting the engine easier:

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-28

•

Replace the engine oil with the correct type and viscosity for the anticipated starting temperature.

(See Checking Engine Oil on Page PM-18).

•

Make sure the battery is fully charged.

•

Install an engine heater, available from your Bobcat loader dealer

Warming The Hydraulic/Hydrostatic System Let the engine run for a minimum of 5 minutes to warm the engine and the hydrostatic transmission fluid before operating the loader.

1

If the warning light comes ON when operating the loader (cold), more warm up time is needed.

STOPPING THE ENGINE Pull the engine speed control fully backward to decrease the engine RPM. P-26727

Turn the key switch to the OFF position.

Also see Normal Starting. Turn the key switch to the RUN POSITION. Push the PREHEAT button (Item 1) [Figure OI-28] on the left side of the instrument panel to preheat the glow plugs.

Figure OI-29

6708105

Refer to the decal on the left side of the operator cab for operation of the preheat system [Figure OI-29].

OI-16

553 Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS

2. Tires may wear faster.

Choosing The Correct Bucket

3. There will be a loss of stability.

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

WARNING

Use the correct size bucket for the type and density of material being handled.

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.

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.

W-2052-0500

Partial loads will make steering more difficult.

NOTE: Warranty is void if non-approved attachments are used on the Bobcat loader.

Pallet Forks Figure OI-31

The dealer can identify, for each model loader, the attachments and buckets approved by Bobcat. The buckets and attachments are approved for rated operating capacity and for secure fastening to the BobTach.

1

The rated operating capacity for this loader is shown on a label in the operator cab. (See Capacities on Page SPEC-5).

Load varies with model of pallet fork being used.

Rated operating capacity 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.

B-17255

Figure OI-30

If a pallet fork attachment is used, the load center moves forward and reduces the Rated Operating Capacity.

WRONG The maximum load to be carried when using a pallet fork is shown on a decal located on the pallet fork frame (Item 1) [Figure OI-31].

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

W-2053-0887 B-6587

See your Bobcat Dealer for more information about pallet fork inspection, maintenance and replacement. See your Bobcat loader dealer for Rated Operating Capacity when using a pallet fork and for other available attachments.

Exceeding the rated operating capacity can cause the following problems [Figure OI-30]: 1. Steering the loader may be difficult.

OI-17

553 Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (CONT’D)

Figure OI-33

Installing The Bucket or Attachment 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.

N-17036

Be sure the Bob-Tach levers do not hit the bucket.

W-2054-1285

Tilt the Bob-Tach backward until the cutting edge of the bucket is slightly off the ground [Figure OI-33].

Figure OI-32

Stop the engine and exit the loader.

1

Figure OI-34

1 N-17032 N-17035

Pull the Bob-Tach levers all the way up (Item 1) [Figure OI-32].

N-17031

Enter the loader and fasten the seat belt.

Fasten the seat belt, lower the seat bar, start the engine and press the green PRESS TO OPERATE Button.

WARNING

Release the parking brake.

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.

Lower the lift arms and tilt the Bob-Tach forward.

Drive the loader forward until the top edge of the BobTach is completely under the top flange of the bucket [Figure OI-32] (or other attachment).

W-2045-1086

Push down on the Bob-Tach levers until they are fully engaged in the locked position [Figure OI-34].

The levers will contact the frame as shown (Item 1) [Figure OI-34] when locked.

If the lever does not engage in the locked position, see your Bobcat loader dealer for maintenance.

OI-18

553 Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (CONT’D)

Removing The Bucket Or Attachment

Installing The Bucket or Attachment (Cont’d)

Figure OI-37

Figure OI-35

1 N-17030

Put the attachment flat on the ground and lower or close the hydraulic equipment. If the attachment is hydraulically controlled (i.e.: combination bucket, backhoe, etc.), stop the engine and relieve hydraulic pressure in the auxiliary circuit. (See Relieving Hydraulic Pressure on Page OI10).

N-17033

Figure OI-36

Raise the seat bar, unfasten the seat belt, engage the parking brake and exit the loader.

Pull the Bob-Tach levers all the way up [Figure OI-37].

Disconnect the hydraulic hoses, if necessary.

Enter the loader and fasten the seat belt. Lower the seat bar, start the engine and press the green PRESS TO OPERATE Button.

1

Release the parking brake.

N-17034

Figure OI-38 The wedges (Item 1) [Figure OI-35] must extend through the holes (Item 1) [Figure OI-36] in the mounting frame of the bucket (or attachment), securely fastening the bucket to the Bob-Tach. The wedge is shown extending through the hole in the bucket [Figure OI-35].

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.

N-17035

W-2102-0588

Lower the lift arms and tilt the Bob-Tach forward.

Move the loader backward, away from the bucket or attachment [Figure OI-38].

OI-19

553 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-39] and [Figure OI-40].

OPERATING PROCEDURE Operating With A Full Bucket When operating on a public road or highway, always follow local regulation. For example: Slow Moving Vehicle (SMV) Sign or directional signals may be required.

Figure OI-41 EMPTY BUCKET

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.

GOING UP SLOPE

I-2015-0284

B-15588

Figure OI-42

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

EMPTY BUCKET

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-39 FULL BUCKET GOING DOWN SLOPE

B-15587

With empty bucket, go down or up the slope with the heavy end toward the top of the slope [Figure OI-41] and [Figure OI-42].

GOING UP SLOPE

WARNING

B-15582

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.

Figure OI-40 FULL BUCKET

W-2018-1187

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

GOING DOWN SLOPE

B-15583

OI-20

553 Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURE (CONT’D)

Emptying the Bucket

Filling The Bucket

Figure OI-45

Figure OI-43

B-6708 B-6719

P10762A

P10762A

Push down on the bottom (heel) of the lift pedal to raise the lift arms [Figure OI-45]. Push the top (toe) of the tilt pedal while raising the lift arms to level the bucket or attachment and help prevent material from falling off the back of the bucket or attachment.

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-43].

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-45]. If all the material is near the side of the truck box or bin, push it to the other side with the bucket.

Figure OI-44

B-6718

WARNING

P10762A

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.

Drive slowly forward into the material. Push the bottom (heel) of the tilt pedal to raise the front of the bucket [Figure OI-44].

W-2057-0694

WARNING 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

Drive backward away from the material.

OI-21

553 Bobcat Loader Operation & Maintenance Manual

Leveling The Ground (Using Lift Arms In Float Position)

OPERATING PROCEDURE (CONT’D) Digging Into The Ground

Figure OI-49 Figure OI-46

B-6722 B-6720

P10762A

P10762A

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-49].

Put the lift arms all the way down. Push the top (toe) of the tilt pedal until the cutting edge of the bucket is on the ground.

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.

Drive forward slowly and continue to tilt the bucket down until it enters the ground [Figure OI-46].

Figure OI-47

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

B-6721

I-2005-1285

P10762A

Drive backward to level loose material.

Push the bottom (heel) of the tilt pedal a small amount to increase traction and keep an even digging depth [Figure OI-47].

Push the bottom (heel) of the lift pedal to unlock from the float position.

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.

Backfilling Figure OI-50

Figure OI-48

B-6724

B-6717

P10762A

P10762A

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

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-48].

Drive forward to the edge of the hole and tilt the bucket forward to dump the material into the hole [Figure OI-50].

Tilt the bucket forward as soon as it is past the edge of the hole [Figure OI-50].

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

OI-22

553 Bobcat Loader Operation & Maintenance Manual

PARKING THE BOBCAT LOADER

TRANSPORTING THE BOBCAT LOADER Loading Onto Transport Vehicle

WARNING 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.

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

W-2045-1086

Figure OI-51 Stop the Bobcat loader on level ground.

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

Pull the engine speed control all the way backward. Turn the key switch to the OFF POSITION. Engage the parking brake.

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

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

Support P10732

A loader with an empty bucket or no attachment must be loaded backward onto the transport vehicle [Figure OI51].

The rear of the trailer must be blocked or supported [Figure OI-51] when loading or unloading the loader to prevent the front end of the trailer from raising up.

OI-23

553 Bobcat Loader Operation & Maintenance Manual

LIFTING THE LOADER

TRANSPORTING THE BOBCAT LOADER (CONT’D) Fastening To Transport Vehicle

WARNING

Figure OI-52

• • (Both Sides) •

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-2007-0497

P-10731

Figure OI-53 1

B-7489B

P10730

1

B-7489A P-10728

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

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.

•

Lower the bucket or attachment to the floor.

•

Stop the engine.

•

Engage the parking brake.

•

Install chains at the front and rear of the loader as shown [Figure OI-52].

Fasten the pins (Item 1) [Figure OI-53] in the kit as shown in figure.

The single point lift, supplied by Bobcat is designed to safely lift and support the Bobcat.

OI-24

553 Bobcat Loader Operation & Maintenance Manual

TOWING THE LOADER

Lower the operator cab. (See Lowering The Operator Cab on Page PM-9).

The towing chain (or cable) must be rated at 1 and 1/2 times the weight of the loader. (See LOADER SPECIFICATIONS on Page SPEC-3).

IMPORTANT Never attempt to start the engine by pushing or pulling. Hydrostatic pumps and motors will be damaged.

I-2001-1285

•

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).

IMPORTANT

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

Do not push or pull the machine at more than 2 MPH (3,2 km/h) or for a distance of more than 25 feet (7,6 meters) with the towing tool in place.

NOTE: Be sure high pressure relief valves are installed before operating the loader again.

I-2017-0389

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

Relief valve release tool set MEL1220 is available from your dealer. Tool must be installed before towing.

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

Clean the area around the hydrostatic pumps.

Figure OI-54

B-6924 E-1457A

Remove the high pressure relief valve from one side of each hydrostatic pump [Figure OI-54] and install the relief valve tubes. Install the plugs and tighten.

OI-25

553 Bobcat Loader Operation & Maintenance Manual

OI-26

553 Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE AIR CLEANER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 Replacing Filter Elements . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 ALTERNATOR BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-22 Adjusting The Alternator Belt . . . . . . . . . . . . . . . . . . . . . . . . PM-22 AUXILIARY CONTROL LOCKBOLT . . . . . . . . . . . . . . . . . . . . . PM-35 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 Bar Sensor (Engine RUNNING) . . . . . PM-12 Inspecting The Traction Lock (Engine RUNNING) . . . . . . . PM-12

PREVENTIVE MAINTENANCE

BOB-TACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-34 Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . PM-34 ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Electrical System Maintenance . . . . . . . . . . . . . . . . . . . . . . PM-23 Fuse Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-23 Removing And Installing The Battery. . . . . . . . . . . . . . . . . . PM-25 Using A Booster Battery (Jump Starting) . . . . . . . . . . . . . . . PM-24 ENGINE COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . PM-20 Checking The Coolant Level . . . . . . . . . . . . . . . . . . . . . . . . PM-21 Cleaning The Cooling System . . . . . . . . . . . . . . . . . . . . . . . PM-20 Replacing The Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-21 ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . PM-18 Checking Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-18 Oil Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-18 Replacing The Oil And Filter . . . . . . . . . . . . . . . . . . . . . . . . PM-19 FINAL DRIVE TRANSMISSION (CHAINCASE) . . . . . . . . . . . . PM-31 Checking And Adding Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-31 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-15 Filling The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-15 Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-16 Fuel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-15 Removing Air From The Fuel System . . . . . . . . . . . . . . . . . PM-17 HYDRAULIC / HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . PM-27 Checking And Adding Fluid . . . . . . . . . . . . . . . . . . . . . . . . . PM-27 Replacing Hydraulic Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . PM-28 Replacing Hydraulic/Hydrostatic Filter . . . . . . . . . . . . . . . . . PM-28

PM-1

553 Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE (CONT’D) 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-32 Lubrication Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-32 MAINTENANCE SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-3 OPERATOR CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-8 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-8 Emergency Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-9 Lowering The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . PM-9 Raising The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-8 PIVOT PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-33 Inspection And Maintenance . . . . . . . . . . . . . . . . . . . . . . . . PM-33 REAR DOOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-13 Adjusting The Rear Door . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-13 Opening And Closing The Rear Door . . . . . . . . . . . . . . . . . PM-13 REAR GRILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-14 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 TIRE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-30 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-29 Tire Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-30 Tire Rotation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-30 Wheel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PM-30

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

553 Bobcat Loader Operation & Maintenance Manual

PM-4

553 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

HOURS

ITEM

SERVICE REQUIRED

Engine Oil Engine Air Filter and Air System

Check the oil level and add as needed. Do not overfill.

Check condition indicator. Service only when required. Check for leaks and damaged components.

Clean debris from oil cooler, radiator and grill. Check coolant level COLD and add premixed coolant as needed.

Remove the trapped water.

Lubricate with multi-purpose lithium based grease.

Engine Cooling System Fuel Filter Lift Arms, Cylinders, Bob-Tach Pivot Pins and Wedges Tires

8-10

50

Check for damaged tires and correct air pressure. Inflate to MAXIMUM pressure shown on sidewall of tire.

Seat Bar, Control Interlocks, Seat Check the condition of seat belt. Check the sear bar and control Belt interlocks for correct operation. Clean dirt and debris from moving parts.

Bobcat Interlock Control Systems Check for correct function. See details in this Manual.

(BICS™) Safety Signs and Safety Treads 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 and nuts. Check the condition of the cab.

Indicators and Lights Check for correct operation of all indicators and lights.

Heater Filter (If Equipped) Clean or replace filter as needed.

Hydraulic Fluid, Hoses and Check fluid level and add as needed. Check for damage and leaks.

Tubelines Repair or replace as needed.

Final Drive Trans. (Chaincase), Check oil level and add oil as needed. Check for correct operation.

Foot Pedals and Steering Levers Repair or adjust as needed.

Parking Brake Check operation.

Wheel Nuts Check for loose wheel nuts and tighten to correct torque. (See TIRE MAINTENANCE, Page PM-30.)

Engine/Pump Coupler Lubricate with multi-purpose lithium based grease.

Spark Arrestor Muffler Empty Spark Chamber.

Battery Check cables, connections and electrolyte level. Add distilled water as needed.

Engine Oil and Filter Replace oil and filter. Use CD or better grade oil and Bobcat filter.

Steering Lever Pivots Grease fittings.

Fuel Filter Replace filter element.

Alternator Belt Check condition and tension. Adjust or replace as needed.

100

200

■ 250

■ 500

■ 1000

✵

❍ Bobcat Interlock Control System (BICS™) Hyd./Hydro. Filter and Breather Cap Hydraulic Reservoir Final Drive Trans. (Chaincase) Coolant

■ ✵ ❍ ▼

Check the function of the lift arm by-pass control.

Replace the filter element. Replace the breather cap.

▼ Replace the fluid.

Replace the fluid.

Replace the coolant

Every 2 years

Or every 12 months.

First oil and filter change must occur at 50 hours; 200 hours thereafter.

Inspect the new belt after first 50 hours.

Replace filter element after the first 50 hours and when the transmission warning light comes ON.

PM-5

553 Bobcat Loader Operation & Maintenance Manual

Figure PM-2

LIFT ARM SUPPORT DEVICE Engaging The Lift Arm Support Device

1

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 P10703

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

Figure PM-1

Lower the lift arm support device to the top of the lift cylinder. Fasten the free end of the spring (Item 1) [Figure PM-2] to the lift arms support device so there will be no interference with the support device engagement.

With the operator in the seat, seat belt fastened and seat bar lowered, start the engine, press the green PRESS TO OPERATE Button.

Figure PM-3

1 P-10707

2

P-9773

1

P10708

P10706

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 frame (Inset) [Figure PM-1].

Raise the lift arms, until the lift arm support device drops onto the lift cylinder rod (Item 1) [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 foot pedals (or hand controls) until both lock.

Remove any attachment before raising the lift arms.

Disconnect the spring from the lift arm support device retaining pin (Item 1) [Figure PM-1]. Hold onto the lift arm support device (Item 2) [Figure PM-1] and remove the retaining pin.

PM-6

553 Bobcat Loader Operation & Maintenance Manual

LIFT ARM SUPPORT DEVICE (CONT’D)

Raise the seat bar and move pedals until both lock.

Engaging The Lift Arm Support Device (Cont’d)

Disconnect the spring from the bracket.

Figure PM-4

Figure PM-6

1

1

P10701

P10706

Install pin (Item 1) [Figure PM-4] into the rear of the lift arm support device below the cylinder rod.

Raise the support device into storage position and insert pin (Item 1) [Figure PM-6] through lift arm support device and bracket.

Disengaging The Lift Arm Support Device Connect spring to pin.

Figure PM-5

1

P10702

Remove the pin from the lift arm support device.

Connect the spring (Item 1) [Figure PM-5] from the lift arm support device to the bracket below the lift arms.

With the operator in the seat, seat belt fastened and seat bar lowered, start the engine, press the green PRESS TO OPERATE Button.

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

Lower the lift arms and stop the engine.

PM-7

553 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB

Raising The Operator Cab

Description

Figure PM-7

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.

ROPS / FOPS - Roll Over protective Structure per SAE J1040 and ISO 3471, and Falling Object Protective Structure per SAE J1043 and ISO 3449, Level I. Level I - Protection from falling bricks, small concrete blocks, and hand tools encountered in operations such as highway maintenance, landscaping, and other construction sites services.

P-9773

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

P10719

Stop the loader on a level surface. Lower the lift arms.

Stop the engine. 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).

WARNING

Put jackstands under the rear corners of loader (Inset) [Figure PM-7].

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.

Figure PM-8

W-2069-1299

WARNING 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.

P10724

W-2014-0895

P10723

Loosen the nut (both sides) at the corner of the operator cab [Figure PM-8].

Remove the nut and plate (both sides) [Figure PM-8].

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].

PM-8

553 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (CONT’D)

Emergency Exit

Lowering The Operator Cab

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

Rear Window: (If Equipped)

WARNING

Figure PM-10

Both sets of fasteners at the front of the operator cab (ROPS) must be assembled as shown in this manual.

Failure to secure ROPS correctly can cause injury or death.

W-2005-1189

Figure PM-9

P0660

Pull on the tag on the top of the rear window to remove the rubber cord [Figure PM-10].

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

P-10715

Figure PM-11

P10713

Pull down on the bottom of the operator cab until it stops at the latching mechanism. Release the latching mechanism [Figure PM-9] and pull the cab all the way down.

Install the plate and nut (both sides) [Figure PM-8].

Tighten the nuts [Figure PM-8] to 40-50 ft.-lbs. (54-68 Nm) torque.

P10722

Exit through the rear of the operator cab [Figure PM-11].

PM-9

553 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (CONT’D) Front Door (If Equipped) Figure PM-12

P9216

NOTE: When an Operator Cab Enclosure Kit is installed, the window of the front door can be used as an emergency exit [Figure PM-12].

Pull the plastic loop at the top of the window in the front door to remove the rubber cord [Figure PM-12].

Figure PM-13

P9217

Push the window out with your foot [Figure PM-13].

Exit through the front door.

PM-10

553 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.

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

Figure PM-14

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.

Both Sides of Loader

WARNING P10361

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

Figure PM-15

W-2105-1285

Inspecting The Seat Bar Sit in the seat and fasten the seat belt. Engage the parking brake. Pull the seat bar all the way down. Start the engine. Press the green PRESS TO OPERATE Button. Operate each foot pedal to check that both the lift and tilt functions operate correctly. Raise the lift arms until the attachment is about 2 feet (600 mm) off the ground.

Both Sides of Loader

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.

Pull the seat bar down, press the PRESS TO OPERATE Button and lower the lift arms. Operate the lift pedal.

While the lift arms are going up, raise the seat bar. The lift arms must stop.

P10717

Clean any debris or dirt from the moving parts [Figure PM-14] & [Figure PM-15].

Lower the seat bar, press the green PRESS TO OPERATE Button, lower the lift arms and put the attachment 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.

Inspect the linkage bolts and nuts for tightness. The correct torque is 25-28 ft.-lbs. (34-38 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

553 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

Inspecting The Traction Lock (Engine RUNNING)

Inspecting The BICS Controller (Engine Stopped Key ON)

6. Fasten seat belt, disengage parking brake, press the green PRESS TO OPERATE Button and raise seat bar fully. Move steering levers slowly forward and backward. The TRACTION lock should be engaged.

Lower the seat bar. Press the green PRESS TO OPERATE Button.

Figure PM-16 1 2

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

3 4

Inspecting The Lift Arm By-Pass Control

5

8. Raise the lift arms 6 feet (2 meters) off the ground.

Stop the engine.

Pull up and hold the lift arm by-pass control knob, then press the toe of the lift arm pedal until the lift arms slowly lower.

P10157

1. Sit in operator’s seat. Turn key ON, lower the seat bar and disengage parking brake. Press the green PRESS TO OPERATE Button. All five BICS controller lights should be ON (Items 1, 2, 3, 4 & 5) [Figure PM16].

WARNING 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.

System Activated (Item 1), Seat Bar (Item 2), Valve (Item 3) and Traction lights (Item 4) [Figure PM-16] should be OFF.

W-2151-0394

NOTE: Record what lights are flashing (if any) and the number of light flashes.

(See Troubleshooting Chart Page SA-5.)

3. Exit the loader and press Traction Lock Override button. Traction light (Item 4) [Figure PM-16] should be ON. Press override button again and Traction light (Item 4) [Figure PM-16] should be OFF. Inspecting The Seat Bar Sensor (Engine RUNNING) 4. Sit in operator’s seat, lower seat bar, engage parking brake and fasten seat belt.

5. Start engine and operate at low idle. Press the green PRESS TO OPERATE Button. 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

553 Bobcat Loader Operation & Maintenance Manual

REAR DOOR

Adjusting The Rear Door

Opening And Closing The Rear Door

Figure PM-18

WARNING

1

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

WARNING P-30804

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

W-2020-1285

Figure PM-17

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

Close the rear door before operating the loader.

1

P-30806

3

2

P-16366

P-16367A

P-10670

Reach into the slot in the rear door and pull the latch handle (Item 1) [Figure PM-17].

Pull the rear door open.

Move the door stop into the engaged position (Item 2) [Figure PM-17] to hold the door open.

Move the door stop up (Item 3) [Figure PM-17] to disengage the door stop and allow the door to close.

Close the door PM-13

553 Bobcat Loader Operation & Maintenance Manual

REAR GRILL

Figure PM-21

Figure PM-19

1 1 P10734 P10747

NOTE: Push the button on the condition indicator (Inset) [Figure PM-20] and start the engine. If the red ring does not show, do not replace the filter element [Figure PM-21].

To remove the rear grill, remove the four grill mounting bolts (Item 1) [Figure PM-19].

Lift the rear grill up and remove from the loader.

Disengage the clamps (Item 1) and remove the dust cover (Item 2) [Figure PM-20].

AIR CLEANER SERVICE Outer Element:

Replacing Filter Elements

Pull the outer filter element from the air cleaner housing [Figure PM-21].

Figure PM-20

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

1

Install a new outer element.

Install the dust cover and fasten the clamps.

2 Inner Element: 3

Only replace the inner filter element under the following conditions: P10749

See SERVICE SCHEDULE on Page PM-5 for the interval to service the air cleaner.

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

•

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

•

Replace the inner filter element when the red ring still shows in the condition indicator window after the outer filter is replaced.

Replace the outer filter element only when the red ring (Item 1) [Figure PM-20] shows in the window of the condition indicator.

PM-14

553 Bobcat Loader Operation & Maintenance Manual

AIR CLEANER SERVICE (CONT’D)

FUEL SYSTEM

Replacing Filter Elements (Cont’d)

Fuel Specifications

Figure PM-22

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

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%

We recommend an operator contact their fuel supplier for local recommendations.

P10729

Filling The Fuel Tank

Pull the inner filter element from the air cleaner housing [Figure PM-22].

WARNING

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

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

Install the new inner element.

W-2063-0887

Record the operating hours of the loader on the decal inside the rear door.

Figure PM-23

P10710

Remove the fuel fill cap [Figure PM-23].

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! Install and tighten the fuel fill cap [Figure PM-23].

PM-15

553 Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM (CONT’D)

Remove Water:

Fuel Filter

Early Models: Shut-off the fuel supply (Item 1) [Figure PM-24] (turn clockwise).

Figure PM-25

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-24

2 1

P10678

1

Loosen the drain at the bottom of the filter element (Item 1) [Figure PM-25] to drain the water from filter.

Open the shut-off valve [Figure PM-24].

Replacing Filter: Clean area around the fuel filter.

P10714

Close the shut-off valve (Item 1) [Figure PM-24].

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

Remove the fuel filter element (Item 2) [Figure PM-25].

Install the new filter element.

Tighten the fuel filter.

Open the shut-off valve [Figure PM-24]

PM-16

553 Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM (CONT’D)

Tighten the vent plug.

Removing Air From The Fuel System

Operate the hand pump (Item 2) [Figure PM-26] until it feels solid.

Figure PM-26 Move the engine speed control to minimum RPM. Open the valve (Item 3) [Figure PM-26] and squeeze the hand pump several times.

Start the engine.

3

When the engine runs smoothly, close the valve (Item 3) [Figure PM-26].

Close the rear door.

1

2

P10675

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

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.

Be sure the engine is cool.

Open the rear door.

Open the vent plug (Item 1) [Figure PM-26] on top of the fuel filter head.

Operate the hand pump (Item 2) [Figure PM-26] until fuel flows from the vent plug with no air bubbles.

PM-17

553 Bobcat Loader Operation & Maintenance Manual

ENGINE LUBRICATION SYSTEM

Oil Chart

Checking Engine Oil

Figure PM-28

Check the engine oil level every day before starting the engine for the work shift.

Figure PM-27 1

P-13624

Use good quality motor oil that meets API Service Classification of CD or better (See Oil Chart [Figure PM28]).

Install the dipstick and close the rear door.

P10689

Park the machine on level ground. Open the rear door and remove the dipstick (Item 1) [Figure PM-27].

Keep the oil level between the marks on the dipstick. Do not overfill.

PM-18

553 Bobcat Loader Operation & Maintenance Manual

Figure PM-30

ENGINE LUBRICATION SYSTEM (CONT’D) Replacing The Oil And Filter Figure PM-29

1

P-10679

2

1

P-10749 P10689

Remove the oil fill cap (Item 1) [Figure PM-30].

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

Use a good quality motor oil that meets API Service Classification of CD or better (See Oil Chart on Page PM18).

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

Open the rear door.

Fill to capacity. (See Capacities on Page SPEC-5). Do not overfill.

Remove the cap (Item 1) [Figure PM-29], from the end of the hose and drain the oil into a container. Dispose of used oil in an environmentally safe manner.

Start the engine and let it run for about 5 minutes. Check for leaks at the filter. Check the oil level. Add oil until the level is at the FULL mark on the dipstick.

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

Install the oil fill cap (Item 1) [Figure PM-30].

Clean the filter housing surface.

NOTE: DO NOT overfill the crankcase.

Put clean oil on the gasket of the new filter. Install the filter and hand tighten.

Record the operating hours of the loader on the decal inside the rear door.

Install the cap on the drain hose.

Close the rear door before operating the loader.

PM-19

553 Bobcat Loader Operation & Maintenance Manual

ENGINE COOLING SYSTEM

Figure PM-32

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.

P10743

W-2019-1285

Cleaning The Cooling System

Use air pressure or water pressure to remove the debris in the area of the radiator and oil cooler [Figure PM-32].

Figure PM-31 Install the rear grill and close the rear door.

1

P10749

Open the rear door.

Remove the access panel from the blower housing (Item 1) [Figure PM-31].

Remove the rear grill. (See REAR GRILL on Page PM14).

PM-20

553 Bobcat Loader Operation & Maintenance Manual

ENGINE COOLING SYSTEM (CONT’D)

Replacing The Coolant

Checking The Coolant Level

Figure PM-34

Figure PM-33

1

1 P10744 P10760

Remove the rear door. (See REAR GRILL on Page PM14).

The coolant recovery tank (Item 1) [Figure PM-33] must be at the FULL COLD mark when engine is cold.

Open the rear door.

Propylene Glycol

Remove the radiator cap (Item 1) [Figure PM-34].

NOTE: The loader is factory filled with propylene glycol coolant. DO NOT mix propylene glycol with ethylene glycol.

Figure PM-35

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

One gallon and one pint of propylene glycol mixed with one gallon of water is the correct mixture of coolant to provide a -34°F (-37°C) freeze protection.

1

Use a refractometer to check the condition of Propylene glycol in your cooling system.

Close the rear door before operating the loader.

P-13023A

Connect a hose to the coolant drain valve (Item 1) [Figure PM-35] (located behind the engine oil filter) or use a funnel to keep coolant from getting into the engine compartment.

Open the valve and drain all the coolant into a container.

Close the valve.

Fill the radiator with premixed coolant and install the radiator cap. (See Checking The Coolant Level on Page PM-21) for premix recommendations.

PM-21

553 Bobcat Loader Operation & Maintenance Manual

ENGINE COOLING SYSTEM (CONT’D)

ALTERNATOR BELT

Replacing The Coolant (Cont’d)

Adjusting The Alternator Belt Figure PM-37

IMPORTANT 1

AVOID ENGINE DAMAGE Always use the correct ratio of water to antifreeze.

2

Too much antifreeze reduces cooling system efficiency and may cause serious premature engine damage.

P-10682

Too little antifreeze reduces the additives which protect the internal engine components; reduces the boiling point and freeze protection of the system.

P10689

Always add a premixed solution. Adding full strength concentrated coolant can cause serious premature engine damage.

Stop the engine and open the rear door.

I-2124-0497

Remove the engine belt shield.

Figure PM-36

Loosen the mounting bolt (Item 1) and adjustment bolt (Item 2) [Figure PM-37].

Figure PM-38

1

P10760

Fill the coolant recovery tank 1/3 full with premixed coolant (Item 1) [Figure PM-36].

P10681

Check the radiator cap for correct pressure rating or overheating can result.

Move the alternator to set the belt tension at 5/16'' (8 mm) movement between pulleys with 15 pounds (67 N) of force [Figure PM-38].

Check for leaks in the cooling system. Check for worn or damaged hoses, clamps or radiator. Check for loose or worn water pump belt.

Tighten the adjustment bolt and mounting bolt.

Close the rear door.

Replace damaged parts immediately to prevent leaks and overheating.

Install the engine belt shield.

Install the radiator cap and the rear grill and close the rear door

PM-22

553 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM

Fuse Location

Description

Figure PM-40

The loader has a 12 volt, negative ground alternator charging system. The electrical system is protected by fuses and relays. The fuses will protect the electrical system when there is an electrical overload. Find the reason for the overload before starting the engine again.

1

Electrical System Maintenance Figure PM-39 6707786

P10748

The fuses are located under the fuse covers (Item 1) [Figure PM-40] located in the engine compartment near the air cleaner.

The fuse decal [Figure PM-40] shows the size and location of each fuse.

P9588

The battery cables must be clean and tight. Remove acid or corrosion from the battery and cables with a baking soda and water solution [Figure PM-39].

Cover the terminals of the battery with Bobcat Battery Saver (P/N 886398) to prevent corrosion. Do not use silicone based products.

Install the terminal covers.

PM-23

553 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (CONT’D)

If it is necessary to use a booster battery to start the engine, BE CAREFUL! There must be one person in the operator’s seat and one person to connect and disconnect the battery cables.

Using A Booster Battery (Jump Starting)

The key switch must be OFF. The booster battery must be 12 volt.

IMPORTANT

Figure PM-41

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.

2

4

I-2023-1285

P-10690

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

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

P10691

3

Connect the end of the first cable to the positive terminal (+) of the booster battery (Item 1) [Figure PM-41].

Connect the other end of the same cable to the loader battery positive (+) terminal (Item 2) [Figure PM-41].

W-2065-1296

WARNING

Connect the end of the second cable to the negative terminal (-) of the booster battery (Item 3) [Figure PM41]. Connect the other end of second cable to the engine ground (Item 4) [Figure PM-41].

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

Keep cables away from moving parts. Start the engine.

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.

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

Remove the cable connected to the loader battery.

Battery gas can explode and cause serious injury.

W-2066-1296

PM-24

553 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (CONT’D)

Figure PM-43

Removing And Installing The Battery

WARNING

1

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.

P10683

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

Remove the battery hold down clamp (Item 1) [Figure PM-43].

W-2065-1296

Figure PM-44 1

Figure PM-42

1

P10686 P10684

Disconnect the positive (+) cable (Item 1) [Figure PM-44] from the battery.

Open the rear door.

Remove the battery from the loader.

Disconnect the negative (-) cable (Item 1) [Figure PM42].

PM-25

553 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (CONT’D) Removing And Installing The Battery (Cont’d) Figure PM-45

P-09589

P-09590

Always clean the battery terminals and cable ends when installing a new or used battery [Figure PM-45].

Do not touch any metal parts with the battery terminals.

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

Inspect the battery holddown to be sure that it is in good condition. If it is cracked or broken, replace it.

Close the rear door.

PM-26

553 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC / HYDROSTATIC SYSTEM

Figure PM-47

The hydraulic and hydrostatic systems use the same hydraulic fluid reservoir.

The system has an engine driven pump that supplies fluid to the control valve, lift and tilt cylinders.

Fluid also goes from the control valve to the hydrostatic transmission pumps to provide charge pressure and cooling.

1

A filter is installed on the right side of the engine compartment. This filter cleans the fluid for the hydrostatic transmission.

P10697

The oil cooler is under the radiator. The oil cooler cools the hydraulic fluid before it returns to the hydrostatic pump.

Remove the filler cap (Item 1) [Figure PM-47].

Checking And Adding Fluid

Add fluid to the reservoir until it shows in the sight gauge [Figure PM-46].

Figure PM-46 Install the filler cap (Item 1) [Figure PM-47].

1

P10693

Use only recommended fluid in the hydraulic system.

(See Hydraulic System on Page SPEC-5).

Put the loader on a level surface Lower the lift arms and tilt the Bob-Tach fully back.

Stop the engine.

Hydraulic fluid must show in the sight gauge (Item 1) [Figure PM-46].

PM-27

553 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC/HYDROSTATIC SYSTEM (CONT’D)

Replacing Hydraulic Fluid

Replacing Hydraulic/Hydrostatic Filter

Figure PM-49

Figure PM-48

1

1

P10697

P10685P37060

(See SERVICE SCHEDULE on Page PM-5) for the service interval to replace the fluid. Replace the fluid if it becomes contaminated and after any major repairs.

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

Remove the filler cap (Item 1) [Figure PM-49].

Stop the engine. Open the rear door.

Figure PM-50

Clean the area around the filter housing and remove the filter element (Item 1) [Figure PM-48].

Clean the surface where the filter seal contacts the filter housing.

Lubricate the rubber gasket with grease. Install the filter element and hand tighten.

1

Operate the loader and check for leaks at the filter.

Check fluid level in the reservoir and add as needed.

Close the rear door.

P10695

Remove the screen (Item 1) [Figure PM-50].

WARNING

Wash the screen in clean solvent. Install the screen in the fill pipe.

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.

Remove the hose and remove the fluid from the hydraulic reservoir.

Remove the filter element. Install a new filter element (See Replacing Hydraulic/Hydrostatic Filter, Page PM28.)

W-2103-1285

Add hydraulic/hydrostatic fluid to the reservoir. (See LOADER SPECIFICATIONS on Page SPEC-3) DO NOT fill above the sight glass.

Install the filler cap. Operate the loader. Stop the engine.

Check the fluid level and add as needed.

PM-28

553 Bobcat Loader Operation & Maintenance Manual

SPARK ARRESTOR MUFFLER

Have a second person (wearing safety goggles) hold a block of wood over the outlet of the muffler (with the engine running) for about 10 seconds.

Maintenance

Stop the engine and install the plug.

WARNING

Close the rear door.

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

Failure to obey can cause serious injury.

WARNING

W-2011-1285

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.

WARNING

W-2068-1285

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.

IMPORTANT

W-2050-1285

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.

Figure PM-51

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. 1

Make reference to local laws and regulations for spark arrestor requirements.

I-2022-0595 P10692

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

Do not operate the loader with a defective exhaust system.

Stop the engine. Open the rear door.

Cover the battery with a fire retardant material.

Remove the plug (Item 1) [Figure PM-51] at the bottom of the muffler.

Start the engine.

PM-29

553 Bobcat Loader Operation & Maintenance Manual

TIRE MAINTENANCE

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.

Wheel Nuts Figure PM-52

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.

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.

P10704

(See SERVICE SCHEDULE on Page PM-5) for the service interval to check the wheel nuts.

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

When installing wheel nuts, tighten to 160 ft.-lbs. (217 N•m) torque.

When checking wheel nut torque, set the torque wrench to 140 ft.-lbs. (190 N•m) to prevent over-tightening.

WARNING

Tire Rotation

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.

Check the tires regularly for wear, damage and pressure.

(See LOADER SPECIFICATIONS on Page SPEC-3) for the correct tire pressure.

W-2078-1285

Figure PM-53

C-1965

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-53].

PM-30

553 Bobcat Loader Operation & Maintenance Manual

FINAL DRIVE TRANSMISSION (CHAINCASE) Checking And Adding Oil 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).

Drive the loader onto a level surface and stop the engine.

Figure PM-54

1

P10699

Remove the plug (Item 1) [Figure PM-54].

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.

PM-31

553 Bobcat Loader Operation & Maintenance Manual

LUBRICATING THE BOBCAT LOADER

Figure PM-57

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

3

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

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

Lower the lift arms all the way and tilt the Bob-Tach all the way forward until it is on the ground.

P10700

Lubricate the following locations on the loader:

3. Lift Arm Pivot Pin (Both Sides) [Figure PM-57].

Figure PM-55

Figure PM-58

4 1

P10758

P10694

4. Rod End Tilt Cylinder [Figure PM-58].

1. Rod End Lift Cylinder (Both Sides) [Figure PM-55].

Figure PM-56

2

P10698

2. Base End Lift Cylinder (Both Sides) [Figure PM-56].

PM-32

553 Bobcat Loader Operation & Maintenance Manual

LUBRICATING THE BOBCAT LOADER (CONT’D)

PIVOT PINS

Lubrication Locations (Cont’d)

Inspection And Maintenance

Figure PM-59

Figure PM-61

5 6 7 1

P10696

P10698

5. Rod End Tilt Cylinder [Figure PM-59].

All lift arm and cylinder pivots have a large pin held in position with a retainer bolt and lock nut (Item 1) [Figure PM-61].

6. Bob-Tach Pivot Pin (Both Sides) [Figure PM-59].

7. Bob-Tach Wedge (Both Sides) [Figure PM-59].

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

Figure PM-60

8

P10709

8. 100 Hours: Steering Lever Shaft Bearings (2) [Figure PM-60] (The opposite end is lubricated under the cab.).

Put oil in the hole of the cross shaft where the right and left steering shafts meet under the cab.

PM-33

553 Bobcat Loader Operation & Maintenance Manual

BOB-TACH

Figure PM-64 Bob-Tach Wedge

Inspection And Maintenance

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.

Wedge must contact lower edge of hole in the attachment.

W-2102-0588

Figure PM-62

B-15177

The spring loaded wedge (Item 1) [Figure PM-62] must contact the lower edge of the hole in the attachment (Item 1) [Figure PM-63] and [Figure PM-64].

1 N-17033

If the wedge does not contact the lower edge of the hole, the attachment will be loose and can come off the BobTach.

Figure PM-65

N-17031

Move the Bob-Tach levers to engage the wedges [Figure PM-62]. The levers and wedges must move freely.

The wedges must extend through the holes in the attachment mounting frame (Item 1) [Figure PM-62].

Figure PM-63 TS-1062

Inspect the mounting frame on the attachment and BobTach, linkages and wedges for excessive wear or damage [Figure PM-65]. Replace any parts that are damaged, bent or missing. Keep all fasteners tight.

Look for cracked welds. Contact your Bobcat dealer for repair or replacement parts.

1

Lubricate the wedges (See SERVICE SCHEDULE on Page PM-5) and (See LUBRICATING THE BOBCAT LOADER on Page PM-32).

N-17034

PM-34

553 Bobcat Loader Operation & Maintenance Manual

AUXILIARY CONTROL LOCKBOLT

RUBBER COUPLING LUBRICATION

Figure PM-66

Figure PM-67

1

P10754

P31910

The auxiliary control has a lockbolt (Item 1) [Figure PM66] that must be removed when auxiliary hydraulics are installed.

See SERVICE SCHEDULE on Page PM-5 for the correct service interval to lubricate the rubber coupler grease fitting [Figure PM-67].

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

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

Remove the nut and bolt (Item 1) [Figure PM-66] at the right hand steering lever.

Use lithium based grease!

Lower the operator cab. (See Lowering The Operator Cab on Page PM-9).

Lower the operator cab. (See Lowering The Operator Cab on Page PM-9).

PM-35

553 Bobcat Loader Operation & Maintenance Manual

PM-36

553 Bobcat Loader Operation & Maintenance Manual

SYSTEM SETUP & ANALYSIS BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . SA-5 Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA-5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SA-3 Troubleshooting The Drive System . . . . . . . . . . . . . . . . . . . . SA-4 Troubleshooting The Engine . . . . . . . . . . . . . . . . . . . . . . . . . SA-3 Troubleshooting The Hydraulic System . . . . . . . . . . . . . . . . . SA-4

SYSTEM SETUP & ANALYSIS

SA-1

553 Bobcat Loader Operation & Maintenance Manual

SA-2

553 Bobcat Loader Operation & Maintenance Manual

TROUBLESHOOTING

WARNING

The following information identifies loader problems which can occur most often. Service procedures for correcting loader problems can be found in this manual on the pages indicated. Some procedures are marked DS (Dealer Service) and 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

Troubleshooting The Engine PROBLEM

CAUSE

CORRECTION

Engine will not turn over with starter.

Battery has low charge.

Charge battery and find cause for loss of charge.

Cables loose or dirty.

Clean and tighten battery cables.

Damaged starter, solenoid or wiring

Check the starting circuit. Repair as needed.

Engine turns with starter, but is difficult Wrong starting procedure. to start.

Air in the fuel.

Ignition system is damaged.

Use correct starting procedure.

Remove air from the fuel system.

Check & repair as needed.

Auxiliary control lever in continuous flow Move controls to neutral position. or lift is in float.

No fuel in tank.

Add fuel.

Vent in fuel filter cap is plugged.

Clean the vent.

Dirt or water in fuel system.

Repair as needed.

Fuel filter is dirty.

Install a new filter.

Hole or leak in fuel line.

Repair as needed.

Weak battery.

Charge or replace battery.

Wrong oil in engine

See Oil Specifications

Cylinder compression is low.

Recondition the engine.

Engine has overheated.

Check cooling system.

Poor fuel quality.

Use fresh, good quality fuel.

Engine has little power or runs rough. Injectors are not working correctly.

Dirt, water or air in fuel system.

Engine overheats.

Repair as needed.

Clean and repair as needed.

Engine is hot.

See Engine Overheats.

Restricted exhaust.

Clean exhaust system.

Dirty air cleaner.

Install new element.

Cylinder compression is low

Recondition the engine.

Restriction in cooling air flow.

Check for debris on radiator grill.

Blower shrouding damaged or missing. Check shroud and repair or replace as needed.

Engine is overloaded.

SA-3

Run at full throttle.

553 Bobcat Loader Operation & Maintenance Manual

TROUBLESHOOTING (CONT’D) Troubleshooting The Drive System PROBLEM

CAUSE

CORRECTION

No drive on both sides.

Hydraulic fluid is low.

Check fluid level. Add as needed.

Damaged hydraulic pump.

Replace filter.

Hydrostatic system is damaged.

Check hydrostatic system.

No drive on one side.

Hydrostatic system is damaged.

Check hydrostatic system and repair as needed.

Control linkage is disconnected.

Repair linkage.

Machine pulls to one side.

Wrong tire pressure.

Check all tires for correct pressure.

Steering linkage interference.

Check steering linkage and adjust as needed.

Hydrostatic system is damaged.

Check system. Repair as needed.

Loader moves when levers are in neutral.

Steering linkage out of adjustment.

Adjust steering linkage.

System is overheating.

Hydraulic fluid level is low.

Check fluid level and add as needed.

Cooling system is dirty, air restricted.

Clean cooling system. Check for debris on radiator grill.

Low charge pressure (transmission light Check by-pass valve. on).

Parking brake will not hold

Auxiliary control in continuous flow position.

Move controls to neutral position.

Loader is overloaded.

Use correct size attachment.

Hydrostatic system is damaged.

Check system and make repair.

See your Bobcat dealer for service.

See your Bobcat dealer for service.

Troubleshooting The Hydraulic System PROBLEM

CAUSE

CORRECTION

No hydraulic action.

No hydraulic fluid.

Check fluid level and add as needed.

Pedals are disconnected.

Check linkage. Repair as needed.

Relief valve is damaged.

Replace the relief valve.

Hydraulic pump is damaged.

Check pump and replace as needed.

Hydraulic fluid is too thick.

Let machine warm up.

Hydraulic action is rough.

Hydraulic fluid level is low.

Check fluid level and add as needed.

Hydraulic action is slow.

Pedal is hitting floor or debris under pedal.

Check adjustment. Remove debris.

Cylinders leak internally.

Check condition of cylinders and repair as needed.

Hydraulic pump is damaged.

Check pump and replace as needed.

Hydraulic fluid is too thick.

Let machine warm up.

Damage to cylinder rods or seals.

Repair cylinders.

Hydraulic cylinders leak fluid.

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

INDICATOR LIGHT

System Activated

Seat Bar

Valve

LIGHT ON

PRESS TO OPERATE Button is pressed.

Seat Bar is down.

Control valve can be used.

LIGHT OFF

PRESS TO OPERATE Button is not pressed.

Seat Bar is up.

EFFECT ON OPERATION OF LOADER WHEN LIGHT IS OFF

SERVICE CODES MEANS SYSTEM ERROR (SEE YOUR BOBCAT DEALER FOR SERVICE) NO. OF FLASHES

Lift, tilt and traction functions will not operate.

2

Lift and tilt functions will not operate.

2

Control valve Lift, tilt and cannot be used. traction functions will not operate.

3

3

2 3 3

Traction

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

Loader cannot be moved forward and backward.

1 2 3 4 5

6 Power

BICS Controller BICS Controller Lift, tilt and is operating is not operating traction functions correctly. correctly. will not operate.

N/A

CAUSES

System Activated circuit shorted to battery voltage.* System Activated circuit shorted to ground.

Seat Bar sensor circuit shorted to battery voltage*.

Seat Bar sensor circuit shorted to ground.

Valve output circuit shorted to battery voltage*.

Valve output circuit shorted to ground.

Controller not grounded or intermittent ground.

Traction lock hold solenoid circuit is open.

Traction lock hold solenoid circuit shorted to battery voltage*.

Traction lock hold solenoid circuit shorted to ground.

Traction lock pull coil circuit is open.

Traction lock pull solenoid circuit is shorted to battery voltage* - ERROR ON (Should be OFF).

Traction lock pull solenoid circuit ERROR OFF (Should be ON).

N/A

* System voltage is less than battery voltage.

SA-5

553 Bobcat Loader Operation & Maintenance Manual

SA-6

553 Bobcat Loader Operation & Maintenance Manual

MACHINE SIGN TRANSLATIONS DANGER (6702301) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-4 DANGER (6702302) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-5 IMPORTANT (6560573) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-6 SERVICE SCHEDULE (6734534). . . . . . . . . . . . . . . . . . . . . . . . . . . MST-3 WARNING (6577754) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-5 WARNING (6579510) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-8 WARNING (6579528) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-4 WARNING (6710358) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-6 DANGER (6717343) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MST-7

MACHINE SIGN TRANSLATIONS

MST-1

553 Bobcat Loader Operation & Maintenance Manual

MST-2

553 Bobcat Loader Operation & Maintenance Manual

SERVICE SCHEDULE (6734534)

MST-3

553 Bobcat Loader Operation & Maintenance Manual

DANGER (6702301)

WARNING (6579528)

ADVERTENCIA (SPANISH) PELIGRO (SPANISH)

ADVERTISSEMENT (FRENCH) DANGER (FRENCH)

MST-4

553 Bobcat Loader Operation & Maintenance Manual

DANGER (6702302)

WARNING (6577754)

ADVERTENCIA (SPANISH)

PELIGRO (SPANISH) ADVERTISSEMENT (FRENCH)

DANGER (FRENCH)

MST-5

553 Bobcat Loader Operation & Maintenance Manual

IMPORTANT (6560573)

WARNING (6710358)

IMPORTANTE (SPANISH) ADVERTENCIA (SPANISH)

IMPORTANT (FRENCH) ADVERTISSEMENT (FRENCH)

MST-6

553 Bobcat Loader Operation & Maintenance Manual

WARNING (6702255)

DANGER (6717343)

PELIGRO (SPANISH)

ADVERTENCIA (SPANISH)

DANGER (FRENCH)

ADVERTISSEMENT (FRENCH)

MST-7

553 Bobcat Loader Operation & Maintenance Manual

WARNING (6579510)

ADVERTENCIA (SPANISH)

ADVERTISSEMENT (FRENCH)

MST-8

553 Bobcat Loader Operation & Maintenance Manual

LIFT ARM SUPPORT DEVICE (6706558)

MST-9

553 Bobcat Loader Operation & Maintenance Manual

MST-10

553 Bobcat Loader Operation & Maintenance Manual

SPECIFICATIONS LOADER SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-3 Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 Hydraulic System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-5 Machine Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC-4 ADDITIONAL PUBLICATIONS AND TRAINING MATERIALS . SPEC-6

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.

B-17154 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

553 Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS (CONT’D) Performance Rated Operating Capacity (SAE)

950 lbs. (431 kg)

Tipping Load (SAE Rating)

1905 lbs. (864 kg)

Operating Weight (SAE)

3704 lbs. (1680 kg)

SAE Breakout Force -Lift -Tilt

1950 lbf. (8674 kg) 1800 lbf. (8006 kg)

Axle Torque

2650 ft.-lbs. (3593 Nm)

Controls Vehicle Steering

Direction and Speed controlled by two hand levers.

Loader Hydraulics - Lift and Tilt - Front Auxiliary

Controlled by separate foot pedals.

Controlled by lateral movement of RH steering lever.

Engine

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

Starting Aid

Glow Plugs - Rocker switch activated.

Service Brake

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

Parking Brake (Std.)

Electric switch in instrument panel.

Engine Make/Model

Kubota/D1105-B

Fuel/Cooling

Diesel/Liquid

Horsepower (SAE)

25.0 HP (18,6 kW)

Maximum Governed RPM

3000 RPM

Torque @ 2100 RPM (SAE)

52 ft.-lbs. (70,5 Nm)

Number of Cylinders

Three

Displacement

68.5 cu. in. (1,1 L)

Bore/Stroke

3.07 / 3.09 (78,0 / 78,5)

Lubrication

Pressure System with Filter

Crankcase Ventilation

Open

Air Cleaner

Dry replaceable paper cartridge with safety element

Ignition

Compression Diesel

Engine Coolant

Propylene Glycol (PG) / Water mixture (53% PG / 47% water)

Starting Aid

Glow Plugs

SPEC-4

553 Bobcat Loader Operation & Maintenance Manual

LOADER SPECIFICATIONS (CONT’D) Hydraulic System Pump Type Pump Capacity System Relief @ Quick Couplers Hydraulic Filter Control Valve Hydraulic Cylinders: Bore Diameter: Lift Cylinder (2) Tilt Cylinder (2) Rod Diameter: Lift Cylinder (2) Tilt Cylinder (2) Stroke: Lift Cylinder (2) Tilt Cylinder (2) Fluid Lines Fluid Type

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

Engine driven, Gear type 11 GPM (41,6 L/min.) @ 3000 RPM 3000 PSI (208 Bar) 3-micron replaceable cartridge in the hydrostatic pump charge line 3-Spool, series type, open center w/float detent on lift and detent on auxiliary.

Double acting; with cushioning feature on tilt cylinder (dump and rollback) 2.0 (50,8) 3.0 (76,2) 1.25 (31,8) 1.50 (38,1) 25.7 (652,0) 13.3 (336,6) SAE Standard tubelines, hoses and fittings BOBCAT FLUID, Hydraulic/Hydrostatic 6903117 - (2.5 gal.)

6903118 - (5 gal.)

6903119 - (55 gal.)

3.9 Seconds 3.3 Seconds 2.4 Seconds 1.8 Seconds

Electrical Alternator

40 amp open ventillation

Battery

12 volt; 600 cold cranking amps @ 0°F (-18°C) 115 minute reserve capacity

Starter

12 volt gear reduction type; 1.88 HP (1,4 kW)

Low Idle Speed

1125-1175 RPM

High Idle Speed

3125-3175 RPM

Drive System Main Drive

Hydrostatic 4-wheel drive

Transmission

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

Final Drive Chains

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

Axle Size

1.75” (44,5 mm)

Wheel Bolts

(6) 9/16” Wheel bolts fixed to axle hubs

Capacities Fuel Tank

10 gals. (38 L)

Engine Oil W/Filter

5.4 qts. (5,1 L)

Cooling System

2.25 gal. (8,5 L)

Hydraulic/Hydrostatic Reservoir

2.3 gals. (8,7 L)

Hydraulic/Hydrostatic System (including Reservoir)

4.8 gals. (18,2 L)

Chaincase Reservoir

4 gals. (15 L)

SPEC-5

553 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.

6708358

For the latest information on Bobcat products and the Bobcat Company, visit our web site at www.bobcat.com; you can also order Operator and Service Training materials online through www.bobcatstore.com

Operation & Maintenance Manual

- gives basic operation instructions and safety warnings.

OPERATION & MAINTENANCE MANUAL 6902827

SKID STEER LOADER OPERATOR TRAINING COURSE

S/N 520311001 & Above S/N 520411001 & Above

6901726 EQUIPPED WITH BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) 6901823 (5-02) Revised (2-03) (2)

Printed in U.S.A.

©Bobcat Company 2003

- complete instructions on the correct operation and the routine maintenance of the BOBCAT loader.

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

SERVICE MANUAL 6903125

Service Manual

OPERATOR SAFETY VIDEO

S/N 520311001 & Above S/N 520411001 & Above

6902176

- Provides basic safety instructions.

EQUIPPED WITH BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) 6901824(8-02)

Printed in U.S.A.

© Bobcat Company 2002

- complete maintenance instructions for your BOBCAT loader.

SKID STEER LOADER SERVICE SAFETY TRAINING COURSE

SAFETY MANUAL 6556500

6900641

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

Introduces Service Technicians to step-by-step basics of proper and safe skid-steer loader maintenance and servicing procedures

SPEC-6

553 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 owner, that each new Bobcat loader will be free from proven defects in material and workmanship with respect to (i) all components of the product except as otherwise specified herein for twelve (12) months, (ii) the drive belt from the hydrostatic pump to the engine, for thirty six (36) months, provided that after the initial twelve month warranty period, such warranty shall be limited to parts only and does not include labor, (iii) tracks and Bobcat brand tires, for twelve (12) months on a prorated basis based on the remaining depth of the track or tire at the time any defect is discovered, and (iv) Bobcat brand batteries, for an additional twelve (12) months after the initial twelve month warranty period, provided that Bobcat Company shall only reimburse a fixed portion of the cost of replacing the battery during such additional twelve months. The foregoing time periods shall all commence after delivery by the authorized Bobcat dealer to the original buyer.

During the warranty period, the authorized Bobcat dealer shall repair or replace, at Bobcat Company's option, without charge for parts and labor, any part of the Bobcat product except as otherwise specified herein 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 repair or replacement.

Bobcat Company may, at its option, require 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 remedies provided in this warranty are exclusive.

This warranty does not apply to diesel engine fuel injection pumps and injectors or tires (except Bobcat brand tires). The owner shall rely solely on the warranty, if any, of the respective manufacturers thereof. This warranty does not cover replacement of scheduled service items such as oil, filters, tune-up parts, and other high-wear items. This warranty does not cover damages resulting from abuse, accidents, alterations, use of the Bobcat product with any accessory 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 EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES AND CONDITIONS, EXCEPT THE WARRANTY OF TITLE. BOBCAT COMPANY DISCLAIMS ALL OTHER WARRANTIES AND CONDITIONS, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL BOBCAT COMPANY OR THE AUTHORIZED BOBCAT DEALER BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHATSOEVER, INCLUDING, BUT NOT LIMITED TO, LOSS OR INTERRUPTION OF BUSINESS, LOST PROFITS, OR LOSS OF MACHINE USE, WHETHER BASED ON CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY, STATUTE OR OTHERWISE, EVEN IF BOBCAT COMPANY OR THE AUTHORIZED BOBCAT DEALER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE TOTAL LIABILITY OF BOBCAT COMPANY AND THE AUTHORIZED BOBCAT DEALERS WITH RESPECT TO THE PRODUCT AND SERVICES FURNISHED HEREUNDER SHALL NOT EXCEED THE PURCHASE PRICE OF THE PRODUCT UPON WHICH SUCH LIABILITY IS BASED.

6570162 (8-02)

Printed in U.S.A.