DOWNLOAD PDF Bobcat 953 Operation & Maintenance Manual

9 5 3 EQUIPPED WITH BOBCAT INTERLOCK CONTROL SYSTEM (BICSTM)

Operation & Maintenance Manual

6724087 (2–97) Revised (9–98)

Printed in U.S.A.

© Melroe Company 1998

OPERATOR SAFETY WARNINGS CORRECT Operator must have instructions before running the machine.

Untrained operators can cause injury or death.

W–2001–1285 Safety Alert Symbol: This symbol with a warning statement, means: “Warning, be alert! Your safety is involved!” Carefully read the message that follows.

CORRECT

CORRECT

B–10731

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

WRONG

B–7403

B–6582

B–13418

Always use the seat bar and fasten seat belt snugly.

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

Never use loader without operator cab with ROPS and FOPS approval.

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

WRONG

WRONG

WRONG

B–6578

B–6585

B–6595

Keep bystanders away from work area.

Always carry bucket or attachments as low as possible.

Do not travel or turn with lift arms up.

Load, unload and turn on flat level ground.

WRONG

WRONG

WRONG

B–6587

B–6594

B–6591

Never exceed rated operating capacity.

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

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

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

Never carry riders.

Never modify equipment.

Use only attachments approved

by Melroe 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 (BICSTM) OSW03–0698

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CONTENTS FOREWORD FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix OPERATING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SYSTEMS ANALYSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 MACHINE SIGN TRANSLATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

SAFETY

OPERATING INSTRUCTIONS

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.

PREVENTIVE MAINTENANCE

REFERENCE INFORMATION Write the correct information for YOUR Bobcat loader in the spaces below.

Always use these numbers when referring to your Bobcat loader.

SYSTEMS ANALYSIS

Loader Serial Number . . . . . . . .

Engine Serial Number . . . . . . . .

MACHINE SIGN TRANSLATIONS

NOTES:

SPECIFICATIONS

YOUR LOADER DEALER: ADDRESS: PHONE: Melroe Company P.O. Box 128 Gwinner, ND 58040–0128 Melroe Europe J. Huysmanslaan 59 B–1651 LOT BELGIUM

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953 Bobcat Loader Operation & Maintenance Manual

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

British Standards Institute (BSI) is the Certifier Registrar Melroe chose to assess the Company’s compliance with the ISO 9001 set of standards. The BSI registration certifies that the two Melroe manufacturing plants and the Melroe corporate offices (Gwinner, Bismarck & Fargo) in North Dakota are in compliance with ISO 9001. Only certified assessors, like BSI, can grant registrations. Since registration requires this third–party auditing, it is irrefutable evidence of conformance.

Continued certification is subject to periodic audits.

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

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

REGULAR MAINTENANCE ITEMS 6511766

ENGINE OIL FILTER (6 Pack)

3885315

FUEL FILTER

6630939

AIR CLEANER, INNER

6630940

AIR CLEANER, INNER

6630156

RADIATOR CAP

6598903

HYDROSTATIC FILTER

6661248

HYDROSTATIC FILTER

6660728

HYDRAULIC FILTER

6665427

BATTERY

6724094

PROPYLENE GLYCOL ANTI–FREEZE, Premixed – [–34°F (–37°C)]

6724354

PROPLYLENE GLYCOL ANTI–FREEZE, Concentrate

6563328

BLACK GOLD Hydraulic/Hydrostatic Fluid – 5 Gallons

6657299

MOTOR OIL 15W40 CE/SG – 1 Qt.

6657300

MOTOR OIL 15W40 CE/SG – 5 Qt.

6657301

MOTOR OIL 10W30 CE/SG – 1 Qt.

6657302

MOTOR OIL 10W30 CE/SG – 5 Qt.

6657303

MOTOR OIL 30 CE/SG – 1 Qt.

6657304

MOTOR OIL 30 CE/SG – 5 Qt. –ii–

953 Bobcat Loader Operation & Maintenance Manual

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 LOADER. If you have any questions, see your Bobcat loader dealer.

SERIAL NUMBER LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v DELIVERY REPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v BOBCAT LOADER IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi OPTIONS AND ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

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SERIAL NUMBER LOCATIONS

A

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.

LOADER SERIAL NUMBER The loader serial number plate is located on the inside of the left upright, above the grill [A].

Explanation of loader Serial Number: XXXX

P–03831

XXXXX Module 2. – Production Sequence (Series)

B

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

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

ENGINE SERIAL NUMBER

P–03832

The serial number is near the fuel injection pump on the engine block [B].

DELIVERY REPORT

C

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 [C].

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953 Bobcat Loader Operation & Maintenance Manual

953 BOBCAT LOADER IDENTIFCATION FRONT LIGHTS OPERATOR SEAT SEAT BAR GRAB HANDLES STEERING LEVERS

SAFETY TREADS

TILT CYLINDERS

BUCKET AUXILIARY HYDRAULIC QUICK COUPLERS STEPS OPERATOR CAB (ROPS & FOPS) LIFT ARM REAR GRILL

+LIFT ARM SUPPORT DEVICE

TAIL LIGHTS

LIFT CYLINDER

REAR LIGHTS

REAR DOOR TIRES*

B–14313 B–14317

* TIRES – Flotation tires (optional) are shown. The Bobcat loader is factory equipped with standard tires.

BUCKET – Several different buckets and other attachments are available for the Bobcat loader.

ROPS, FOPS – Roll Over Protective Structure, Falling Object Protective Structure, per SAE J1040 and ISO 3471, and Falling Object Protective Structure per SAE J1043 and ISO 3449, Level l. Level ll 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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953 Bobcat Loader Operation & Maintenance Manual

OPTIONS AND ACCESSORIES All 953 Bobcat loaders are equipped with the following standard items: Bob–Tach Spark Arrestor Exhaust System Lift Arm Support Device Operator Cab (with ROPS & FOPS Approval) Bobcat Interlock Control System (BICS™)

Seat Belt Seat Bar Parking Brake Gauges/Warning Lights

Below is a list of some equipment available as a Factory Installed Option or as a Field Installed Accessory from your Bobcat Loader dealer. See your Bobcat dealer for other available accessories and attachments.

Tires 8:00–19.5, 8 PR . . . . . . . . . . . . . . . . . . . . . . . . . . .

14:00–17.5, PR Flotation . . . . . . . . . . . . . . . . . . .

38 x 20 x 16.1, 8 PR . . . . . . . . . . . . . . . . . . . . . . .

9 x 16 Solid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Std. Opt. Opt. Opt.

Operator Cab Suspension Seat . . . . . . . . . . . . . . . . . . . . . . . . . .

Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Heated Enclosed Cab . . . . . . . . . . . . . . . . . . . . . .

Special Applications Kit . . . . . . . . . . . . . . . . . . . . .

Cab Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fresh Air Heater w/plumbing . . . . . . . . . . . . . . . .

Opt. & FA FA Opt. & FA FA FA FA

Miscellaneous Catalytic Purifier Muffler . . . . . . . . . . . . . . . . . . . .

Back–Up Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Rear Auxiliary Hydraulics . . . . . . . . . . . . . . . . . . .

Opt. & FA Opt. & FA Opt. & FA

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

Specifications subject to change without notice

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SAFETY SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi, xii FIRE PREVENTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

SAFETY

MACHINE SIGNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv, xv

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953 Bobcat Loader Operation & Maintenance Manual

SAFETY INSTRUCTIONS SAFETY IS THE OPERATOR’S RESPONSIBILITY The Skid Steer Loader is a highly maneuverable and compact machine. In operation, it is rugged and useful under a wide variety of conditions. This presents an operator with hazards associated with off highway, rough terrain applications. The loader has an internal combustion engine with resultant heat and exhaust. All exhaust gases can kill or cause illness so the loader must be used with adequate ventilation. The loader has a spark arrestor muffler which is required for operation in certain areas.

The dealer explains the capabilities and restrictions of the loader and attachments for each application. The dealer demonstrates the safe operation of the loader according to Melroe’s 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 rated capacity and secure fastening to the loader. The user must check with the dealer, or Melroe Company literature, to determine safe loads of materials of specified densities for his loader–attachment combination.

The following publications provide information on the safe use and maintenance of the loader and attachments: • The Delivery Report is used to assure that complete instructions have been given to the new owner and that the machine is in safe operating condition.

• The Operation and Maintenance Manual delivered with the loader gives operating information as well as routine maintenance and service procedures. It is a part of the loader and can be stored in a container (later models) provided inside the cab. Replacement Operation and Maintenance Manuals can be ordered from your Bobcat loader dealer.

• The loader has machine signs (decals) which instruct on the safe operation and care. The signs and their locations are shown in the Operation and Maintenance Manual. Replacement signs are available from your Bobcat loader dealer.

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

• The EMI Safety Manual (available in Spanish) delivered with the loader gives general safety information.

• The Service Manual and Parts Manual are available from your dealer for use by mechanics to do shop–type service and repair work.

• The Skid–Steer Loader Operator Training Course is available through your local Bobcat dealer. This course provides information for safe and efficient operation of the Bobcat loader. The course is available in English and Spanish versions.

• The Bobcat Skid–Steer Loader Safety Video is available from your Bobcat Dealer.

The dealer and owner/operator review the recommended uses of the loader and attachments when the loader is delivered.

If the owner/operator will be using the loader for a different application(s) he must ask the dealer for recommendations on the new use.

Call Before You Dig 1–888–258–0808 When you call, you will be directed to a location in your state/city for information about burried lines (telephone, cable TV, water, sewer, gas,etc.).

SI01–0698

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953 Bobcat Loader Operation & Maintenance Manual

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

Operator must have instructions before running the machine.

Untrained operators can cause injury or death.

W–2001–1285 B–10731

The Bobcat loader must be in good operating condition before use.

Check all of the items on the Service Schedule under the 8–10 hour column or as shown in this Manual.

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

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

I–2019–0284

W–2044–1285

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

• UNDERSTAND THE WRITTEN INSTRUCTIONS, RULES AND REGULATIONS • The written instructions from Melroe Company include the Delivery Report, Operation & Maintenance Manual, Operator’s Handbook, EMI 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 Slow Moving Vehicle emblem. Regulations may identify a hazard such as a utility line.

• HAVE TRAINING WITH ACTUAL OPERATION • Operator training must consist of a demostration and verbal instruction. This training is given by your dealer before the loader is delivered.

• The new operator must start in an area without bystanders and use all the controls until he can operate the loader safely under all conditions of the work area. Always fasten seat belt and lower seat bar before operating.

• The Skid Steer Loader Operator Training Course is available in English and Spanish. The course provides information for safe and efficient operation. See your dealer for availability.

• KNOW THE WORK CONDITIONS • For each material to be handled, the operator must know how to avoid exceeding the rated operating capacity of the loader. For example, in handling certain loose material with a given bucket, he must know whether he can safely take a full load, or only part of a bucket load.

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

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

• Wear tight fitting clothing. Always wear safety glasses when maintaining or servicing loader. Safety glasses, hearing protection or loader special applications kit are required for some work. See your dealer about Melroe Safety equipment.

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

SI02–0598 –xii–

953 Bobcat Loader Operation & Maintenance Manual

FIRE PREVENTION The loader has several components that are at high temperature 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.

Flammable debris (leaves, straw, etc.) must be removed regularly. If flammable debris is allowed to accumulate, it will increase the fire hazard. The loader must be cleaned as often as necessary to avoid this accumulation. Flammable debris in the engine compartment is a fire hazard when the loader is parked with a hot engine.

The spark arrestor muffler 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 Bobcat loader where exhaust, arcs, sparks or hot components can contact flammable material, explosive dust or gases.

• The engine compartment and engine cooling system must be inspected every day and cleaned if necessary to prevent fire hazard 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 this engine. It has glow plugs. These starting aids can cause explosion and injure you or bystanders.

• Always clean the loader and disconnect the battery before doing any welding. Cover rubber hoses, battery and all other flammable parts. Keep a fire extinguisher near the loader 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 Manual for connecting the battery.

• Use the procedure in the Operation & Maintenance Manual for cleaning the spark arrestor muffler.

• Know where fire extinguishers and first aid kits are located and how to use them.

A fire extinguisher is available from your Bobcat dealer. The fire extinguisher can be installed in the location shown [A].

A

P–10650

SI03–0398

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953 Bobcat Loader Operation & Maintenance Manual

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

6557565 6579510

6708358

6578368

6531653 6706809

AUXILIARY HYDRAULIC CONTROL

6708294 OPERATION INSTRUCTIONS

6702255 6707255

6593388 6561383

6702301 6710358

6702302 *6579528

* Decal located behind lift arm crossmember.

B–14313

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953 Bobcat Loader Operation & Maintenance Manual

MACHINE SIGNS (DECALS) (Cont’d)

6565990

6708929

6560573

6700388 6568971

6706558

6596296 6595873

15 ACCESSORY

6595014

6595547

6579511

* Located inside the Rear Door

B–14317

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953 Bobcat Loader Operation & Maintenance Manual

OPERATING INSTRUCTIONS ATTACHMENTS & BUCKETS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Installation And Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . . . . . . . . . . . . 4 Lift Arm By–Pass Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Seat Sensor Override (If Equipped) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Traction Lock Override . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 DAILY INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 ENGINE SPEED CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

OPERATING INSTRUCTIONS

GETTING READY FOR OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 HYDRAULIC CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Auxiliary Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Flush Face Couplers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Foot Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Lift Arm Float Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Lift Arm Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Tilt Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 INSTRUMENT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 LIFTING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 OPERATING PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Backfilling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Emptying The Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Digging Into The Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Filling The Bucket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Leveling The Ground (Using Lift Arms in Float Position) . . . . . . . . . . . . . . . 20 PARKING BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 PARKING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 STARTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Normal Starting Condition (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Cold Temperature Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Ether Start System (Field Accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Warming The Hydraulic/Hydrostatic System . . . . . . . . . . . . . . . . . . . . . . . . . 15 STEERING LEVERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Forward, Reverse, Normal Turn, Fast Turn . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 STOPPING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7, 21 STOPPING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 TOWING THE LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 TRANSPORTING THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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953 Bobcat Loader Operation & Maintenance Manual

INSTRUMENT PANEL

A

The following items are located on the standard instrument panel [A]:

8

13

9

1. TRACTION LOCK OVERRIDE BUTTON – (Functions Only When The Seat Bar Raised) Allows you to use the steering levers to move the loader when using the backhoe attachment or for loader service. (See Page 5.)

11

10

7

12

6 5

2. SEAT SENSOR OVERRIDE BUTTON (If Equipped) (Functions Only When The Seat Bar Is Down) Allows operator, when seated with the seat bar lowered, to use lift, tilt, and traction functions if the seat sensor cannot be activated. (See Page 5.)

3. KEY SWITCH – For starting and stopping the engine.

14

4 2 1

4. TURN/HAZARD INDICATORS Left or right indicator blinks to indicate left or right turn. Both indicators blink to indicate a hazard condition when the hazard switch is ON.

3

MC–02034

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

Stop the engine if the light comes ON. 7. LIGHT SWITCH (OPT.) – Controls the work and travel lights.

8. HAZARD SWITCH (OPT.) – Controls the optional hazard indicators.

9. BEACON SWITCH (OPT.) – Controls the optional flashing beacon light.

10. ETHER START BUTTON (Field Accessory) – Controls the starting fluid used for cold temperature starting. (See Page 15.)

11. HOURMETER – Records the total operating hours of the loader.

12. FUEL GAUGE – Shows the amount of fuel in the fuel tank.

13. VOLTMETER – Shows the condition of the battery and the rate of charge.

14. ENGINE TEMPERATURE GAUGE – Shows the engine coolant temperature.

–3–

953 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

A

The Bobcat Interlock Control System (BICS™) requires the operator to be seated in the operating position with the seat bar fully lowered before the lift, tilt and traction functions can be operated. The seat belt must be fastened anytime you operate the loader.

1 2 3 4

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

5

The BICS™ System Controller is located inside the cab behind and to the right of the operator’s seat [A].

There are five green lights on the BICS™ System Controller and all must be ON to operate the loader.

P–03836

The light functions are as follows [A]:

B

1. ON when operator is in the seat.

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

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

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

1 5. ON when the Controller is operating correctly.

NOTE: If any of the lights are off or blinking, see the troubleshooting chart on Page 61 of this manual or see Inspection and Maintenance instructions on Page 35.

P–03835

Lift Arm By–Pass Control The lift arm by–pass control knob (Item 1) [B] is used to lower the lift arms in the event that the lift arms can not be lowered during normal operating conditions.

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

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

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W–2045–1086

–4–

953 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) (Cont’d)

A

Traction Lock Override There is a traction lock override button (Item 1) [A] on the left hand instrument panel which will allow you to use the steering levers to move the loader forward & backward when using the backhoe attachment or for service.

Seat Sensor Override (If Equipped)

1

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

P–04490

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

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

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

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W–2045–1086

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.

W–2151–0394

–5–

953 Bobcat Loader Operation & Maintenance Manual

ENGINE SPEED CONTROL

A

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

1

P–03830

B

PARKING BRAKE Engage the parking brake by pushing down on the top of the pedal [B]. The traction drive system will be locked.

MC–1914

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

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

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

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

P–03839

C

To release the parking brake, push down on the bottom of the pedal [C].

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

MC–1914

P–03843

–6–

953 Bobcat Loader Operation & Maintenance Manual

STEERING LEVERS

A 1

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

• The seat bar must be lowered.

• Keep your feet on the pedal controls or footrests.

P–03842

W–2261–0397

B The steering levers (Item 1) [A] are on the right and left side in front of the seat.

FORWARD BACKWARD

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

The steering levers control forward and reverse travel of the loader [B].

Forward Travel – Push both levers forward.

Reverse Travel – Pull both levers backward.

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

LEFT TURN

RIGHT TURN

LEFT FAST TURN

RIGHT FAST TURN

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

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

To increase travel speed, push both levers farther forward.

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

PI–01849

–7–

953 Bobcat Loader Operation & Maintenance Manual

SEAT BAR RESTRAINT SYSTEM

A

The seat bar restraint system has a pivoting seat bar (Item 1) [A] with arm rests and has spring loaded interlocks for the lift and tilt control pedals. The operator controls the use of the seat bar. The seat bar in the down position helps to keep the operator in the seat. The interlocks require the operator to lower the seat bar in order to operate the foot pedal controls. When the seat bar is up, the lift and tilt control pedals are locked when returned to the neutral position.

1

P–04489

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

B

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.

SEAT BAR DOWN 2

Seat Bar

W–2045–1086

The spring loaded interlocks (Item 1) [B] control the locking and unlocking functions of the control pedals.

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

Pedal Linkage 3 1 Interlock

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

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

MC–01669

C

SEAT BAR RAISED Seat Bar

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

When the seat bar is raised, spring forces raise the interlocks [C].

Interlock

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

Refer to the PREVENTIVE MAINTENANCE section for SEAT BAR RESTRAINT SYSTEM Inspecting The Seat Bar Page 34 & Maintaining the Seat Bar Page 34.

MC–01669

–8–

953 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONTROLS

A

Foot Pedals

3

2 P–03840

1 Keep both feet on pedals while operating machine. Failure to do so can cause serious injury.

W–2002–1285 Put your feet on the pedals and KEEP THEM THERE any time you operate the loader.

Two foot pedals (Item 1) [A] control the hydraulic cylinders for the lift and tilt functions.

Lift Arm Operation

B–07440

The left pedal controls the lift arms. Push on the bottom (heel) (Item 2) [A] of the pedal to raise the lift arms.

Push on the top (toe) (Item 3) [A] of the pedal to lower the lift arms.

4

Lift Arm Float Position Push the top (toe) (Item 3) [A] of the pedal all the way forward until it locks into detent (float).

5

1 P–03840

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

Tilt Operation The right pedal controls the action of the bucket. Push the top (toe) (Item 4) [A] of the pedal to tilt the bucket forward.

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

NOTE: Keep the foot pedal area clean of dirt and debris that could interfere with pedal operation.

Remove the cover (Item 1) [B] which will permit the cleaning of the foot pedal area by pushing the dirt or debris down the chutes.

Make sure the chutes are clean and check for damage to the flex hoses of the chutes. Replace the covers.

B–07441

B

1

P–03844

–9–

953 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC CONTROLS (Cont’d)

A

Auxiliary Operation

AVOID BURNS

B–07493

Hydraulic fluid, tubes, fittings and quick couplers can get hot when running machine and attachments. Be careful when connecting and disconnecting quick couplers.

2

1

W–2220–0396

The right hand steering lever (Item 1) [A] also controls the front auxiliary hydraulics [B] and the left hand steering lever (Item 2) [A] controls the optional rear auxiliary hydraulics.

3

NOTE: Move the auxiliary control (right steering lever) Out of the detent position before leaving the operator cab.

P–03842

Move the steering lever to the left or to the right to engage the auxiliary hydraulics [A] and operate the attachment.

(Example: To open or close the grapple teeth.)

B

Move the lever further to the right (Item 3) [A] to put the auxiliary section of the control valve into the detent position. This provides the constant flow of hydraulic fluid required by some attachments, such as the Backhoe.

Flush Face Couplers Some loaders and attachments may have flush face couplers.

Wipe the mating surfaces clean (including the outside diameter of the male coupler). To engage, align the ends of the couplers and push straight in. When the couplers are engaged, the locking collar can be turned to prevent unwanted disengagement. To disengage, align the ball and slot on the female coupler then slide the locking collar back.

P–03841

–10–

953 Bobcat Loader Operation & Maintenance Manual

DAILY INSPECTION The loader must be in good operating condition [A].

Check the following items before starting each day: • Engine Oil • Hydraulic/Hydrostatic Fluid • Engine Cooling System • Operator Cab, Seat Belt, Seat Bar & Pedal Interlocks • Lift Arm & Cylinder Pivot Pins • Tires & Tire Pressure • Any Loose or Broken Parts • Safety Tread & Safety Signs • Bobcat Interlock Control System (BICS™). (See Page 30.)

A

B–07494

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

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.

Instructions are necessary before operating or servicing machine. Read Operation & Maintenance Manual, 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. Failure to follow instructions can cause injury or death [A].

W–2003–0797

B

6596296

–11–

953 Bobcat Loader Operation & Maintenance Manual

GETTING READY FOR OPERATION

A

Read the Operation & Maintenance Manual and the Operator’s Handbook before operating the loader [A].

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

W–2001–0596 P–03833

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

B

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.

B–12885

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

C

1 P–03838

Fasten the seat belt snugly and adjust it so that the buckle is centered between the hips [D].

D

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

P–04486

–12–

953 Bobcat Loader Operation & Maintenance Manual

GETTING READY FOR OPERATION (Cont’d)

A

Lower the seat bar [A].

Be sure the parking brake is engaged.

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

P–04487

B

Keep your hands on the steering levers and feet on the pedals while seated in the loader [B].

P–04489

STARTING THE ENGINE

C

WRONG

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.

W–2050–1285

B–03724

AVOID INJURY OR DEATH • Engines can have hot parts and hot exhaust

D

gas. Keep flammable material away.

• Do not use machines in atmosphere containing explosive gas.

WRONG

W–2051–1086

B–06578

–13–

953 Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (Cont’d)

A

Normal Starting Condition (Standard) Adjust the seat position for comfortable operation of the foot pedals and steering levers.

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

Lower the seat bar [A].

P–04487

B

Put the foot pedals and steering levers in neutral (center) position (Item 1) [B].

NEUTRAL POSITION

Set the engine speed control to the half speed position (Item 2) [B].

Turn the key to the ON position. The engine and transmission warning lights will be ON when the key is on and the engine is stopped (Item 3) [B].

1 1/2 SPEED

Turn the key to start position (Item 4) [B] and release it when the engine starts.

2 ON POSITION

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.

I–2034–0284

3

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

START POSITION

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

4 RUN POSITION

5

–14–

PI–02188 MC–02033

953 Bobcat Loader Operation & Maintenance Manual

STARTING THE ENGINE (Cont’d)

A

Cold Temperature Starting If the temperature is below 32°F (0°C), use the following procedure to make starting the engine easier: • Replace the engine oil with the correct type and viscosity for the anticipated starting temperature. (See Page 41.)

1

• Make sure the battery is at full charge.

• Install a block or tank heater on the engine.

Ether Start System (Field Accessory) The ether–start system (Item 1) [A] dispenses starting fluid into the engine when needed to aid starting. The starting fluid is used from a replaceable can of fluid under pressure.

P–06774

B

Push the ether–start button (Item 1) [B]. This will fill the fluid dispenser.

1

Release the button. This dispenses the starting fluid into the engine and the sound from the engine should change.

Keep cranking a few seconds. This will either start the engine or use the starting fluid so that is does not accumulate in the engine.

If the engine does not start after repeating the above steps three times, correct as follows: empty starting fluid can, wrong fuel, too heavy grade oil, low charge on battery, etc.

P–04490

NOTE: The starting fluid contains ether which is a flammable and explosive gas. Arcs, sparks, flames and lighted tobacco must be kept away from ether to avoid explosions and fire.

C

OFF POSITION

Warming The Hydraulic/Hydrostatic System

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

PI–02188

I–2007–1285

Let the engine run for a few minutes to warm the engine and the hydrostatic fluid before operating the loader.

During very cold temperatures 0°F (23°C) and below, let the engine run for at least five minutes.

NOTE: If the transmission warning light comes on when operating the loader, more warm–up time is needed.

STOPPING THE ENGINE Pull the engine speed control fully backward to decrease the engine speed. Turn the key switch to the OFF position [C].

–15–

953 Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS

A

Never use attachments or buckets which are not approved by Melroe Company. Buckets and attachments for safe loads of specified densities are approved for each model.

Unapproved attachments can cause injury or death.

W–2052–1285 B–07495

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

The buckets and attachments are approved for Rated Operating Capacity and for secure fastening to the Bob–Tach.

The rated Operating Capacity for this loader is shown on a label in the operator cab. (Also see the Specifications section, Page 73.) It is determined by using a standard dirt bucket, and material of normal density, such as dirt or dry gravel. If longer buckets are used and load center moves forward and reduces the Rated Operating Capacity. If very dense material is loaded, the volume must be reduced.

AVOID INJURY OR DEATH Do not exceed rated operating capacity.

Excessive load can cause tipping or loss of control.

Exceeding the Rated Operating Capacity can cause the following problems:

W–2053–0887

1. Steering the loader may be difficult.

2. Tires may wear faster.

3. There will be a loss of stability.

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

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

B

1375 (624)

Maximum load to be carried when using a pallet fork are shown in figure [B].

WEIGHT OF LOADS LBS. (KG)

24 (610) CENTER OF LOAD LOCATION Inches (mm)

953 BOBCAT LOADER

–16–

953 Bobcat Loader Operation & Maintenance Manual

ATTACHMENTS AND BUCKETS (Cont’d)

A

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

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

P–04549

W–2054–1285

B

Pull the Bob–Tach levers all the way up.

Tilt the Bob–Tach forward. Drive the loader forward until the top edge of the Bob–Tach is completely under the flange of the bucket [A].

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

Tilt the Bob–Tach backward until the bucket is off the ground [B]. Stop the engine.

P–04542

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

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W–2045–1086

Push down on the Bob–Tach levers [C] until they are in the locked position [D]. The wedges must extend through the holes in the bucket or attachment.

P–04543

D

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

P–04545

–17–

953 Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURE

A

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

WITH BUCKET FULL

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

Going Up Slope

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

I–2015–0284

B

B–12878

WITH BUCKET FULL

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

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

With a full bucket, go up or down the slope with the heavy end toward the top of the slope [A] & [B].

With empty bucket, go down or up the slope with the heavy end toward the top of the slope [C] & [D].

Going Down Slope

C

B–12878

WITH BUCKET EMPTY

• 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.

Going Down Slope

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

D

W–2018–1187

B–12873

WITH BUCKET EMPTY

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

Going Up Slope –18–

B–13297

953 Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURES (Cont’d)

A

Filling The Bucket Push down on the top 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 [A].

B–12830

B–12872

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

B B–12830

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.

B–12871

Emptying The Bucket

C

Push down on the bottom of the lift pedal to raise the bucket over the truck box or bin [C].

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

B–12830

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

W–2057–0694 B–12869

–19–

953 Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURES (Cont’d)

A

Digging Into The Ground Put the lift arms all the way down. Push the top of the tilt pedal until the cutting edge of the bucket is on the ground.

B–12830

Drive forward slowly and continue to tilt the bucket down until it enters the ground [A]. Push the bottom of the tilt pedal a small amount to increase traction and keep an even digging depth.

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

B–12874

B

Push the bottom of the tilt pedal to tilt the bucket backward as far as it will go when the bucket is full [B].

B–12830

B–12876

Leveling The Ground (Using Lift Arms in Float Position)

C

Push the top (toe) of the lift pedal all the way forward until the pedal is in the locked position (detent) to put the lift arms in a float position [C]. 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.

B–12830

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

I–2005–1285

Drive backward to level loose material. Push the bottom of the lift pedal to unlock from the detent position.

B–12875

–20–

953 Bobcat Loader Operation & Maintenance Manual

OPERATING PROCEDURES (Cont’d)

A

Backfilling Lower the lift arms and put the cutting edge of the bucket on the ground. Drive forward to the edge of the hole to push the material into the hole [A].

B–12830

Tilt the bucket forward as soon as it is past the edge of the hole [A].

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

PARKING THE BOBCAT LOADER Stop the Bobcat loader on level ground.

Lower the lift arms fully and put the attachment flat on the ground.

Pull the engine speed control lever all the way backward.

Turn the key switch to the OFF position.

B–12877

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

• Stop the engine.

• Engage the parking brake.

• Raise seat bar, move pedals until both lock.

W–2045–1086

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.

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

–21–

953 Bobcat Loader Operation & Maintenance Manual

TRANSPORTING THE BOBCAT LOADER

A

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 SUPPORT

B–14315

B–14318

B–07411

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

B

Be sure the transport and towing vehicles are of adequate size and capacity.

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

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 or down slopes.

Lower the bucket or attachment to the floor. Stop the engine. Engage the parking brake. Install chains at the front and rear loader tie down positions (Inset) [B]. Fasten each end of the chain to the transport vehicle.

TOWING THE LOADER 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.)

The towing chain (or cable) must be rated at 1–1/2 times the weight of the loader. (See SPECIFICATION Page 75.)

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

B–14316

–22–

953 Bobcat Loader Operation & Maintenance Manual

LIFTING THE LOADER

A

1

AVOID INJURY OR DEATH • Before lifting, check fasteners at the lifting brackets.

• Never allow riders in the cab or bystanders

within 15 feet (5 meters) while lift the machine.

Failure to secure fasteners can cause injury or death.

W–2163–1294

B–14314

The loader can be moved by lifting with the lifting kit which is available from your Bobcat dealer. The lifting brackets must be attached to the main frame according to the instructions in the kit. Make sure that the lift bracket fastening bolts are tightened to 220–245 ft.–lbs.

(300–330 Nm) torque (Item 1) [A].

The lifting kit, supplied by Melroe Company is designed to lift and hold the Bobcat loader.

Never modify operator cab by welding, grinding, drilling holes or adding attachments unless instructed to do so by Melroe Company.

Changes to the cab can cause loss of operator protection from rollover and falling objects, and result in injury or death

W–2069–1285

–23–

953 Bobcat Loader Operation & Maintenance Manual

953BICSOperation&MaintenanceManual#6724087–OperatingInstructions

–24–

953 Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE

Page Number AIR CLEANER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ALTERNATOR BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Adjusting The Alternator Belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) . . . . . . . . . . . . 35 Inspecting The Lift Arm By–Pass Control . . . . . . . . . . . . . . . . . . . . . . . 35 Inspecting The BICS™ Controller (Engine STOPPED – Key ON) . . 35 Inspecting The Seat And Seat Bar Sensors (Engine RUNNING) . . . 35 Inspecting The Traction Lock (Engine RUNNING) . . . . . . . . . . . . . . . 35 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 BOB–TACH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Cleaning The Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Checking The Coolant Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Removing Coolant From The Cooling System . . . . . . . . . . . . . . . . . . . 44 Propylene Glycol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43,44

PREVENTIVE MAINTENANCE

DRIVE BELT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 ELECTRICAL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Removing And Installing The Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Servicing The Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Fuse Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Using A Booster Battery (Jump Starting) . . . . . . . . . . . . . . . . . . . . . . . 47 ENGINE LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Checking Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Replacement Of Oil And Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 EXHAUST GAS PURIFIER (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Cleaning The Exhaust Gas Purifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 FINAL DRIVE TRANSMISSION (CHAINCASE) . . . . . . . . . . . . . . . . . . 53 Checking And Adding Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 FUEL SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Filling The Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Fuel Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 In–Line Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Removing Air From The Fuel System . . . . . . . . . . . . . . . . . . . . . . . . . . 40 HYDRAULIC/HYDROSTATIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 49 Case Drain Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Checking And Adding Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Hydraulic Fluid Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Hydraulic/Hydrostatic Filter Replacement . . . . . . . . . . . . . . . . . . . . . . . 49 LIFT ARM SUPPORT DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Disengaging The Lift Arm Support Device . . . . . . . . . . . . . . . . . . . . . . 31 Engaging The Lift Arm Support Device . . . . . . . . . . . . . . . . . . . . . . . . . 30 LUBRICATION OF THE BOBCAT LOADER . . . . . . . . . . . . . . . . . . . . . 55 Continued On Next Page

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953 Bobcat Loader Operation & Maintenance Manual

PREVENTIVE MAINTENANCE

Page Number OPERATOR CAB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Emergency Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Lowering The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Raising The Operator Cab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 PIVOT PINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 REAR DOOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Adjusting The Rear Door Latch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 REAR GRILL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 SEAT BAR RESTRAINT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Inspecting The Seat Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Maintaining The Seat Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 SERVICE SCHEDULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 SPARK ARRESTOR MUFFLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 TIRE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Tire Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Wheel Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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953 Bobcat Loader Operation & Maintenance Manual

MAINTENANCE SAFETY Instructions are necessary before operating or servicing machine. Read Operation & Maintenance Manual, 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. Failure to follow instructions can cause injury or death.

W–2003–0797 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–10731

B–12365

B–7469

Never service the Bobcat® Skid Steer Loader without instructions.

Use the correct procedure to lift or lower operator cab with lift arms down.

Cleaning and maintenance are required daily.

WRONG

WRONG

WRONG

B–11799

B–3724

B–6593

Have good ventilation when welding or grinding painted parts.

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

Vent exhaust to outside when engine must be run for service.

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

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 Melroe Company.

WRONG

WRONG

WRONG

B–6590

B–6580

B–6589

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 contacts, 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.

–27–

MSW01–0698

953 Bobcat Loader Operation & Maintenance Manual

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953 Bobcat Loader Operation & Maintenance Manual

SERVICE SCHEDULE 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.

Instructions are necessary before operating or servicing machine. Read Operation & Maintenance Manual, 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. Failure to follow instructions can cause injury or death.

W–2003–0797

ITEM Engine Oil Air Cleaner Engine Cooling System Lift Arms, Cylinder, Bob– Tach Pivot Pins & Wedges Engine Air System Tires Seat Belt, Seat Bar & Pedal Interlocks Bobcat Interlock Control System (BICS™) Safety Signs & Safety Tread Operator Cab Fuel Filter Hydraulic Fluid, Hoses & Tubelines Final Drive Transmission (Chaincase) Battery Control Pedals & Steering Wheel Nuts Parking Brake Alternator Belt Engine Oil & Filter Spark Arrestor Muffler Engine/Hydro. Drive Belt Fuel Filter Steering Shaft Hyd./Hydro. Filters Hydraulic Reservoir Breather Cap Final Drive Transmission Hydraulic Reservoir/Case Drain Filter Bobcat Interlock Control System (BICS™)

*

SERVICE REQUIRED

8–10

50

100

250 1000

Check the oil level & add oil as needed.

Check condition indicator. Service only when required.

Clean debris from oil cooler, radiator & grill. Check coolant level cold in recovery tank. Add coolant as needed.

Lubricate with multi–purpose lithium based grease (14 places).

Check for leaks & damaged components.

Check for damaged tires & correct air pressure.

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

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

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

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

Remove debris from the pedal area through the clean–out holes.

Remove the trapped water.

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

Repair & replace as needed.

Check oil level.

Check battery for damage, hold downs, cables, connections and electrolyte level. Add distilled water as needed.

Check for correct operation. Repair or adjust as needed.

Check for loose wheel nuts & tighten to 320–350 ft.–lbs. (434–475 Nm) torque.

Check operations of the parking brake.

Check tension & adjust as needed.

Replace oil & filter. Use CD or better grade oil and Melroe filter.

Clean the spark chamber.

Check gap at rod nuts (Page 48) * Replace filter element & In–Line fuelfilter Grease fitting & oil the cross–shaft.

Replace the filter elements.

Replace the reservoir breather cap.

Replace the oil in the chaincase.

Replace the fluid. Replace the case drain filter.

Check lift arm by–pass control.

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

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

Check every 8 hours for the first 40 hours of operation.

First oil and filter change must occur at 50 hours; 100 hours thereafter.

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953 Bobcat Loader Operation & Maintenance Manual

LIFT ARM SUPPORT DEVICE

A

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

1 2

P–04550

Engaging The Lift Arm Support Device

B

Maintenance and service work can be done with the lift arms lowered. If the lift arms are raised, use the following procedure: Disconnect the spring (Item 1) [A] from the lift arm support device retaining pin (Item 2) [A] hold onto the support device and remove the retaining pin.

Lower the lift arm support device on top of the lift cylinder.

Hook the free end of the spring to the lift arm support device so there will be no interference with the support device engagement [B].

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

P–04549

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953 Bobcat Loader Operation & Maintenance Manual

LIFT ARM SUPPORT DEVICE (Cont’d)

A

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

1

P–04541

Raise the lift arms, until the lift arm support device lowers onto the lift cylinder rod [A].

B 1

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 P–04547

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 foot controls until both controls lock.

C

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

Disengaging The Lift Arm Support Device

1

Remove the pin from the lift arm support device.

2

Connect the spring (Item 1) [B] 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.

P–04550

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

Raise the seat bar and move foot controls until both controls lock.

Disconnect the spring from the bracket.

Raise the support device into storage position and insert pin through lift arm support device and bracket [C].

Connect spring to pin [C].

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953 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB

A

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 roll over protection.

B–07705

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

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

P–03847

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

B

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

P–03846

W–2069–1285

C

Raising The Operator Cab Stop the loader on a level surface. Lower the lift arms. If the lift arms must be up while raising the operator cab, install the lift arm support device. (See Page 30.)

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.

P–04537

W–2014–0895

Loosen the nut (both sides) at the front corner of the operator cab [A].

Remove the nut and plate (both sides) [B].

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 [C].

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953 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (Cont’d)

A

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

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

P–04538 P–04538

Install the plate and nut (both sides) [B].

B

Tighten the nuts to 40–50 ft.–lbs. (54–68 Nm) torque.

P–03847

Emergency Exit

P–03846

C

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

To exit through the rear window, use the following procedure: Pull on the tag on the top of the rear window to remove the rubber cord [C].

P–00660

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

D

Exit through the rear of the operator cab [D].

P–04546

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953 Bobcat Loader Operation & Maintenance Manual

OPERATOR CAB (Cont’d)

A

Emergency Exit (Cont’d) NOTE: When an Operator Cab Enclosure Kit (optional) is installed, the window of the front door can be used as an emergency exit [A].

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

Push the window out with your foot [B].

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

P–09216

B

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.

P–09217

W–2105–1285

Inspecting The Seat Bar

C

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

Clean (Both Sides)

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

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

N–00561

Lower the seat bar, lower the lift arms and place the bucket 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.

Maintaining The Seat Bar

D

Clean

See the SERVICE SCHEDULE Page 29 for correct service interval.

Clean any debris or dirt from the moving parts [C] & [D].

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 Melroe replacement parts.

P–04551

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953 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™)

A

Inspecting The BICS™ System Controller (Engine STOPPED – Key ON) 1. Sit in the operator’s seat. Turn key ON, lower the seat bar and disengage the parking brake. All five BICS™ Controller lights should be ON (Items 1, 2, 3, 4 & 5) [A].

1 2 3 4 5

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

Seat bar light (Item 2) [A], valve light (Item 3) [A] and traction light (Item 4) [A] should be OFF. 3. Raise up slightly off the seat. Seat light (Item 1) [A] should be OFF. NOTE: Record what lights are blinking (if any) and number of blinks. Refer to Page 61.

P–03836

4. Exit the loader and press traction lock override button. Traction light (Item 4) [A] should be ON. Press override button again and traction light (Item 4) [A] should be OFF.

Clean area behind and under seat.

B

Inspecting The Seat And Seat Bar Sensors (Engine RUNNING) 5. Sit in the operator’s seat, lower the seat bar and engage the parking brake. Fasten the seat belt.

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

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

P–03763

Inspecting The Traction Lock (Engine RUNNING)

Operator Seat

C

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

Seat Sensor

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

Seat 1 Spring

Seat Rail Cover

Inspecting The Lift Arm By–Pass Control 9. Raise the lift arms six feet (2 m) off the ground. Stop the engine, pull and hold the by–pass control knob.

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

MC–02043

Maintenance Clean any debris, dirt or objects from under or behind the operator seat [B] & [C]. The right side of the seat must move up and down.

Inspect both Seat Rail Covers [C] for wear or damage.

Replace if necessary.

AVOID INJURY OR DEATH

Clearance is necessary between the seat mount (Item 1) [C] and the seat pan, to allow the seat to move up and down freely. With adequate clearance, the seat sensor will be allowed to function properly.

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.

Inspect seat bar pivot area for tightness of linkage bolts.

W–2151–0394

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

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953 Bobcat Loader Operation & Maintenance Manual

REAR DOOR

A

AVOID INJURY OR DEATH Stop, cool and clean engine of flammable material. Never service or adjust loader with engine running unless instructed to do so in manual.

W–2061–0887 P–04493

Pull up on the door latch [A] and turn it to open the rear door [B].

B

NOTE: If a rear scarifier attachment is installed, prevent damage to the rear door by making sure the rear door is closed and the latch pin lock is installed before the rear scarifier is raised during loader operation.

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

P–04495

W–2020–1285

C

Adjusting The Rear Door Latch Loosen the set screw (Item 1) [C]. Loosen the nut (Item 1) [D].

Turn the bolt (Item 2) [D] in or out until the door contacts both the top and the bottom of the loader frame with the lever in the latched position.

1

NOTE: It takes approximately 50 lbs. (20 kg) of force to push the lever down when the latch is correctly adjusted.

P–04492

With the set screw up, the flanges on the bolt must be to the side so that the set screw aligns with the flat surface at the end of the bolt.

D 1

Tighten the set screw [C]. Tighten the nut (Item 1) [D] to 65–70 ft.–lbs. (88–95 Nm) torque.

2 P–04497

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953 Bobcat Loader Operation & Maintenance Manual

REAR GRILL

A

Open the rear door and raise the rear grill [A] to clean debris from the oil cooler and the radiator.

P–04498

B

AIR CLEANER SERVICE

2

See the SERVICE SCHEDULE Page 29 for the interval to service the air cleaner system.

Check the air intake hoses for wear. If the air cleaner is damaged, check all the connections.

Replace the large (outer) filter element when the restriction indicator reads more than 22 in. H20 (Item 1) [B].

1

Replace the inner filter every third time the outer filter is replaced or when the restriction indicator reads 15 in. H20 at full engine RPM after the outer filter has been replaced.

P–04510

Use the following procedure to replace the filter element(s):

C

NOTE: Before replacing the filter element, push the button (Item 2) [B] on the restriction indicator and start the engine. Run at full RPM. If readings are less than 22 in. H20 do not replace the filter elements.

1

Stop the engine and open the rear door. Raise the rear grill.

Service the air cleaner as follows: Remove the dust cover wing nut (Item 1) [C].

Remove the dust cover [C].

P–04500

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953 Bobcat Loader Operation & Maintenance Manual

AIR CLEANER SERVICE (Cont’d)

A

Remove the wing nut (Item 1) [A] at the large air filter element.

1

P–04502

B

Remove the large filter element [B].

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

Install the new filter element and tighten the wing nut.

P–04504

Install the dust cover and tighten the wing nut.

C

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

Only replace the inner filter element under the following conditions: 1. Replace the inner filter element every third time the outer filter is replaced.

2. When the restriction indicator reads 15 in. H2O at full engine RPM, only after the outer filter element has been changed.

P–04506

Remove the inner filter wing nut [C].

Remove the inner filter.

Install a new filter and tighten the wing nut.

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953 Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM

A

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

The following is one suggested blending guideline which should prevent fuel gelling problems: Temp. F° (C°) No. 2 No.1

1

+15o(9o) 100% 0% Down to –20o (–29o) 50% 50% 0% 100% Below –20o (29o) We recommended an operator contact their fuel supplier for local recommendations.

P–3845

Filling the Fuel Tank

B Stop and cool the engine before adding fuel.

NO SMOKING! Failure to obey warnings can cause an explosion or fire.

W–2063–0887

Remove the fuel fill cap (Item 1) [A].

1

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!

S/N 513111560 & Above S/N 513115073 & Above – Europe Only

P–09310

Install and tighten the fuel fill cap [A].

C

Fuel Filter

2

P–4505

Always clean up spilled fuel or oil. Keep heat, flames, sparks or lighted tobacco away from fuel and oil. Failure to use care around combustibles can cause explosion or fire which can result in injury or death.

W–2103–1285

See the SERVICE SCHEDULE Page 29 for the service interval when to remove the water from the fuel filter.

Loosen the drain plug (Item 1) [B] & [C] at the bottom of the filter element to drain any water from the filter.

See the SERVICE SCHEDULE Page 29 for the service interval when to replace the fuel filter.

Remove the drain plug (Item 1) [C] to remove the fuel.

Remove the bolt (Item 2) [C] at the top of the filter head and remove the filter bowl.

Remove the filter element and discard in an appropriate manner.

1

Clean the area around the filter housing. Put oil on the seal of the new filter element. Install the fuel filter, tighten the bolt. Remove the air from the fuel system.(See Page 40.)

P–4503

–39–

P–4499

953 Bobcat Loader Operation & Maintenance Manual

FUEL SYSTEM (Cont’d)

A

In–Line Fuel Filter

1

The In–Line fuel filter (Item 1) [A] is located at the Right Hand fuel tank.

See the SERVICE SCHEDULE Page 29 for the correct service interval.

To replace the In–Line fuel filter, raise the operator cab.

(See Page 40.)

Remove the clamps. Remove the fuel filter and replace with a new fuel filter.

P–04512

Removing Air From The Fuel System After replacing the fuel filter element or when the fuel tank has run out of fuel, the air must be removed from the fuel system prior to starting the engine.

B 1 2

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 or 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.

P–04508

W–2072–0496

C

Loosen the plug at the top (Item 1) [B] and at the side (Item 2) [B] of the injection pump housing.

Loosen the bolt (Item 1) [C] on the top of the final fuel filter.

Have a second person, seat bar down, seat belt fasten and parking brake engaged, crank the engine with the starter.

1

NOTE: Do not crank the engine more than 15 seconds.

When solid flow of fuel flows from the vent plugs (no air bubbles), tighten all the vent plugs in the following order:

P–04505

Final fuel filter (Item 1) [C].

D

Injection pump side plug (Item 2) [B].

Injection pump top plug (Item 1) [B].

1

1

Loosen the fittings on the high pressure lines to the fuel injectors (Item 1) [D].

Move the throttle to half open position. Turn the engine, with the starter until no air bubbles show at the fittings of injectors.

Tighten all the high pressure fittings.

P–04496

–40–

953 Bobcat Loader Operation & Maintenance Manual

ENGINE LUBRICATION SYSTEM

A

Checking Engine Oil Check the engine oil level every day.

1

Before starting the engine for the work shift, open the rear door. Remove the dipstick (Item 1) [A].

Keep the oil level between the marks on the dipstick [B].

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

Oil Chart

P–04501

RECOMMENDED SAE VISCOSITY NUMBER (LUBRICATION OILS FOR DIESEL ENGINE CRANKCASE)

C° –40

–34

–29

–23

–18

–13

–7

–1

+4

+10

+15

+21

+27

+32

+38

+43 +49

B

SAE 40W or 20W–50 SAE 10W–30

Keep Oil Level Between These Marks

SAE 15W–40 SAE 30W

* SAE 5W–30 SAE 20W–20 SAE 10W A–01528

SYNTHETIC OIL Use recommendation from Synthetic Oil Mfgr.

–40 –30

–20

–10

0

+10

+20

+30

+40

+50

+60

+70

+80

+90 +100 +110 +120

F°

TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE (DIESEL ENGINES MUST USE API CLASSIFICATION CD, CF4, CG4 )

* Can be used ONLY when available with appropriate diesel rating.

–41–

953 Bobcat Loader Operation & Maintenance Manual

ENGINE LUBRICATION SYSTEM (Cont’d)

A

Replacement Of Oil And Filter See the SERVICE SCHEDULE Page 29 for the service interval for replacing the engine oil and filter.

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

Open the rear door. Remove the drain plug (Item 1) [A].

Drain the oil into a container.

Remove the oil filter (Item 1) [B].

1

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

P–04507

Install and tighten the drain plug.

B

Remove the filler cap (Item 2) [B] from the oil fill tube.

2

Put 7.0 qts. (6,6 L) of oil in the engine. (See Oil Chart.)

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

1

P–04509

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

–42–

953 Bobcat Loader Operation & Maintenance Manual

COOLING SYSTEM

A

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

1 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.

P–04515

W–2019–1285

B

Checking The Coolant Level Open the rear door. Raise the rear grill. Check the coolant level in the coolant recovery tank (Item 1) [A].

The coolant recovery tank must be 1/3 full.

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

Propylene Glycol P–04517

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

One gallon and one pint (4,3 L) of propylene glycol mixed with one gallon of water is the correct mixture of coolant to provide a –34°F (–37°C) freeze protection.

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

Cleaning The Cooling System Raise the rear grill [A].

Use air pressure or water pressure to clean the top of the oil cooler [A].

Raise the oil cooler and clean the top of the radiator [B].

Check cooling system for leaks.

–43–

953 Bobcat Loader Operation & Maintenance Manual

COOLING SYSTEM (Cont’d)

A

Removing Coolant From The Cooling System

1

Do not remove radiator cap when the engine is hot. You can be seriously burned.

W–2070–1285

Open the rear door. Open the rear grill.

P–04517

Remove the radiator cap (Item 1) [A].

B

Connect a hose to the engine block drain valve (Item 1) [B]. Open the drain valve and drain the coolant into a container.After all the coolant is removed, close the drain valve.

Propylene Glycol

1

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

One gallon and one pint (4,3 L) of propylene glycol mixed with one gallon of water is the correct mixture of coolant to provide a –34° (–37°) freeze protection.

Mix the coolant in a separate container. (See SPECIFICATIONS for correct capacity Page 75.)

P–04516

Fill the radiator with the premixed coolant. Install the radiator cap.

Fill the coolant recovery tank 1/3 full.

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

–44–

953 Bobcat Loader Operation & Maintenance Manual

ALTERNATOR BELT

A

Adjusting The Alternator Belt

1

Stop the engine.

Open the rear door.

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

Loosen the adjustment bolt (Item 2) [A].

2 P–04534

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

B

Tighten the adjustment bolt and mounting bolt.

Close the rear door.

P–04514

–45–

953 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM

A

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

Servicing The Electrical System The battery cables must be clean and tight. Check the water level in the battery. Remove any acid or corrosion from the battery and cables with a sodium bicarbonate and water solution [A].

P–00742

Cover the battery terminals and cable ends with grease.

B

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.

P–04518

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

C

1

W–2065–1296

2

4 5

3 Fuse Location

6

The electrical system for this model loader is protected by fuses (Item 1) [B] located in the engine compartment.

The fuse capacity and circuits are listed below [C] & [D]:

7 Ref.

Fuse Capacity

Circuit

1.

2.

3.

4.

5.

6.

7.

8.

15 AMP 10 AMP 15 AMP 10 AMP 25 AMP 25 AMP 25 AMP 25 AMP

ENGINE BICS™ ACCESSORY INST. PANEL BRAKE LIGHTS ACCESSORY ACCESSORY

8 P–04520

D

15 ACCESSORY 6595547

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953 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (Cont’d)

A

Using A Booster Battery (Jump Starting) 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.

2 4

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

P–04526

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

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.

Battery gas can explode and cause serious injury.

1

W–2066–1296

Connect the end of the first cable (Item 1) [A] to the positive (+) terminal of the booster battery. Connect the other end of the same cable (Item 2) [A] to the positive terminal on the starter.

3

P–04522

Connect the end of the second cable (Item 3) [A] to the negative (–) terminal of the booster battery. Connect the other end of the same cable (Item 4) [A] to the engine.

B

Keep cables away from moving parts. Start the engine.

(Also see Cold Temperature Starting Condition, Page 14.)

1

After the engine has started, remove the ground (–) cable (Item 4) [A] first. Remove the cable from the positive terminal on the starter.

P–04521

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.

I–2023–1285

Removing and Installing the Battery Open the rear door.

Disconnect the negative (–) battery cable (Item 1) [B]

–47–

953 Bobcat Loader Operation & Maintenance Manual

ELECTRICAL SYSTEM (Cont’d)

A

Removing And Installing The Battery (Cont’d)

1

Remove the battery holddown clamp (Item 1) [A].

P–04519

B

Disconnect the positive (+) battery cable (Item 1) [B].

1

P–04523

Remove the battery from the loader [C].

C

P–04524

Always clean the terminals and cable ends when installing a new battery [D].

D

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

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

P–09589

–48–

P–09590

953 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC/HYDROSTATIC SYSTEM

A

Checking And Adding Fluid Use only recommended fluid in the hydraulic system.

(See SPECIFICATIONS Section for the correct fluid, Page 75.)

1

2

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

Stop the engine.

Remove the dipstick (Item 1) [A].

P–03850

B

The fluid level must be between the marks on the dipstick [B].

If fluid is needed, remove the fill cap (Item 2) [A].

Add the fluid as needed to bring the level to the top mark on the dipstick [B]

P–03851

Hydraulic/Hydrostatic Filter Replacement

C

See the SERVICE SCHEDULE Page 29 for the correct service interval.

NOTE: Drive belt shield was removed for photo clarity.

Open the rear door.

Use a filter wrench. Remove the filter elements (Item 1 & 2) [C].

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

2

1

Install and hand tighten the filter elements

P–04533

–49–

953 Bobcat Loader Operation & Maintenance Manual

HYDRAULIC/HYDROSTATIC SYSTEM (Cont’d)

A

Case Drain Filter The case drain filter (Item 1) [A] needs replacement only when there have been major repairs to the hydrostatic pumps or motors.

1

P–04529

B

Hydraulic Fluid Replacement See the SERVICE SCHEDULE Page 29 for the service interval.

The fluid must also be replaced if it becomes contaminated or after major repairs.

1

Remove the reservoir fill cap (Item 1) [B].

Raise the operator cab. Connect a 5/8’’ ID hose to the drain valve. Open the drain at the bottom of the reservoir (Item 1) [C]. Let the fluid flow into a container.

Close the drain when the reservoir is empty.

P–03850

Remove the screen (Item 1) [D]. Wash the screen in clean solvent and install it in the fill pipe.

C

Remove the hydraulic/hydrostatic filter elements. (See Page 49.) Install new filter elements.

1

Add fluid to the reservoir until the fluid is at the top mark on the dipstick. (See the SPECIFICATIONS Section for type of fluid and capacity.) DO NOT fill above the top mark on the dipstick.

Lower the operator cab. Start the engine and operate the loader through the hydraulic and hydrostatic functions.

Stop the engine. Check the fluid level again and add as needed.

P–04513

D Hydraulic fluid escaping under pressure can have sufficient force to enter a person’s body by penetrating the skin and cause serious injury and possibly death if proper medical treatment by a physician familiar with this injury is not received immediately.

1

W–2145–0290

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

P–03843

–50–

953 Bobcat Loader Operation & Maintenance Manual

SPARK ARRESTOR MUFFLER

A

See the SERVICE SCHEDULE Page 29 for service interval for cleaning the spark arrestor muffler.

Do not operate the loader with a defective exhaust system.

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

1

Remove the plug (Item 1) [A] from the bottom of the muffler.

P–04525

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

W–2006–0284

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.

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

Stop the engine. Install and tighten the plug. Lower the rear grill and close the rear door.

W–2050–1285

Stop engine and allow the muffler to cool before cleaning the spark chamber. Wear safety glasses or goggles. Failure to obey can cause serious injury.

EXHAUST GAS PURIFIER (Optional) Function

W–2011–1285

The Exhaust Gas Purifier, when installed on the 953 loader, provides a cleaner exhaust by burning excess carbon particles and gases emitted by the engine.

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.

When the purifier is installed on a new loader, the purifier must be cleaned every 6 to 8 months.

W–2068–1285

Cleaning The Exhaust Gas Purifier Remove the purifier from the engine on the loader.

Use air pressure to force any loose particles or debris from the purifier.

If soft carbon deposits are present, a pressure steam can be used to wash any remaining carbon deposits from the purifier.

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.

NOTE: Do not place the nozzle of the air or steam cleaner inside the purifier. Maximum pressure of 50 PSI (345 kPa) is allowed for the cleaning procedure.

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.

Dry the purifier thoroughly with air.

If hard carbon deposits exist, have the purifier serviced by your dealer.

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

I–2022–0595

–51–

953 Bobcat Loader Operation & Maintenance Manual

TIRE MAINTENANCE

A

Wheel Nuts See the SERVICE SCHEDULE Page 29 for the service interval to check the wheel nuts. The correct torque is 320–350 ft.–lbs. (434–475 Nm) torque [A].

Tire Rotation Check the tires regularly for wear, damage and pressure.

(See SPECIFICATIONS Page 75 for the correct tire pressure.)

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 [B].

P–04540

B

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.

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

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

E–01655

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, avoid 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.

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.

W–2078–1285

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

I–2057–0794

–52–

953 Bobcat Loader Operation & Maintenance Manual

FINAL DRIVE TRANSMISSION (CHAINCASE)

A

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 SPECIFICATIONS Page 75.)

1

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

Remove the plug (Item 1) [A] from the front of the chaincase housing P–04537

If oil can be reached with the tip of the 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.

–53–

953 Bobcat Loader Operation & Maintenance Manual

DRIVE BELT

A

Adjustment See the SERVICE SCHEDULE Page 29 for the correct service interval.

Turn the large nut until the spring is at full tension (Item 1) [A] the adjustment nut (Item2) [A] until there is 0.060 inch (1,5 mm) between the adjusting nut. (Approximately 3/4 turn away from large nut.)

P–04532

1

0.060 inch (1,5 mm)

2

P–04530

–54–

953 Bobcat Loader Operation & Maintenance Manual

LUBRICATION OF THE BOBCAT LOADER

A

Lubricate the loader as specified in the SERVICE SCHEDULE Page 29 for the best performance of the loader.

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

1

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

Lubricate the following locations on the loader: 1. Rod End Lift Cylinder (Both Sides) [A].

P–03854

B

2. Base End Lift Cylinder (Both Sides) [B].

2

P–03852

C

3. Lift Arm Pivot Pin (Both Sides) [C].

3

P–04548

D

4. Base End Tilt Cylinder (Both Sides) [D].

4

P–03857

–55–

953 Bobcat Loader Operation & Maintenance Manual

LUBRICATION OF THE BOBCAT LOADER (Cont’d)

A

5. Rod End Tilt Cylinder (Both sides) [A].

5

P–03855

B

6. Bob–Tach Wedge (Both Sides) [B] 7. Bob–Tach Pivot Pin (Both Sides) [B].

6 7 P–03856

Every 250 Hours:

C

Add oil to the steering shaft two holes (Item 1) [C].

1

Add grease to the fitting (Item 2) [C].

2 PIVOT PINS

P–04528

D

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

Check that the lock nuts are tightened to 18–20 ft.–lbs.

(24–27 Nm) torque.

1

P–03854

–56–

953 Bobcat Loader Operation & Maintenance Manual

BOB–TACH

A

Inspection And Maintenance Move the Bob–Tach levers to engage the wedges [A].

The levers and wedges must move freely.

1

The wedges must extend through the holes in the attachment mounting frame (Item 1) [A].

N–17027

Bob–Tach wedges must extend through the holes in attachment. Lever(s) must be fully down and locked. Failure to secure wedges can allow attachment to come off and cause injury or death.

B

W–2102–0497

The spring loaded wedge (Item 1) [A] must contact the lower edge of the hole in the attachment (Item 1) [B] and [C].

If the wedge does not contact the lower edge of the hole [B] and [C], the attachment will be loose and can come off the Bob–Tach.

1

N–17023

C

Bob–Tach Wedge

Wedge Must Contact Lower Edge Of Hole In The Attachment

Inspect the mounting frame on the attachment and the Bob–Tach, linkages and wedges for excessive wear or damage [D]. Replace any parts that are damaged, bent, or missing. Keep all fasteners tight.

D

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

Lubricate the wedges (See SERVICE SCHEDULE, Page 29 and LUBRICATION OF THE BOBCAT LOADER, Page 55).

TS–01062

–57–

953 Bobcat Loader Operation & Maintenance Manual

953BICSOperation&MaintenanceManual#6724087–PreventiveMaintenance

–58–

953 Bobcat Loader Operation & Maintenance Manual

SYSTEMS ANALYSIS Page Number BOBCAT INTERLOCK CONTROL SYSTEM (BICSTM) Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 TROUBLESHOOTING THE DRIVE SYSTEM . . . . . . . . . . . . . . . . . . . . . . 62 TROUBLESHOOTING THE ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 TROUBLESHOOTING THE HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . 63

SYSTEMS ANALYSIS

–59–

953 Bobcat Loader Operation & Maintenance Manual

–60–

953 Bobcat Loader Operation & Maintenance Manual

TROUBLESHOOTING 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 D/S (Dealer Service) and must be performed only by qualified Bobcat service personnel.

Instructions are necessary before operating or servicing machine. Read Operation & Maintenance Manual, 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. Failure to follow instructions can cause injury or death.

W–2003–0797

TROUBLESHOOTING THE ENGINE PROBLEM Engine won’t turn over with starter.

CAUSE

CORRECTION

PAGE

Battery has low charge.

Charge battery and find cause for loss of charge.

–

Cables loose or dirty.

Clean and tighten the battery cables.

–

Check the starting circuit. Repair as needed.

D/S

Wrong starting procedure.

Use correct starting procedure.

12

Air in the fuel.

Remove air from the fuel system.

35

Fuel shut–off solenoid.

Check electrical connections.

–

No fuel in tank.

Add fuel.

34

Vent in fuel filter cap is plugged.

Clean the vent.

–

Dirt or water in fuel system.

Repair as needed.

D/S

Fuel filter is dirty.

Install a new filter.

34

Hole in fuel line.

Repair as needed.

–

Weak battery.

Charge or replace battery.

–

Wrong oil in engine.

See Oil Specifications.

36

Engine has lost compression.

Recondition the engine.

D/S

Engine has overheated.

Check cooling system.

–

Poor fuel quality.

Use fresh, good quality fuel.

34

Damaged injectors.

Repair as needed.

D/S

Dirt, water or air in fuel system.

Clean and repair as needed.

D/S

Engine is hot.

See Engine Overheats.

–

Restricted exhaust.

Clean exhaust system.

45

Dirty air cleaner.

Install new element.

32

Cylinder compression is low.

Recondition the engine.

D/S

Damaged wiring.

Engine turns with starter, but is difficult to start.

Engine has little power or runs rough.

starter,

solenoid

or

D/S = Dealer Service Only –61–

953 Bobcat Loader Operation & Maintenance Manual

TROUBLESHOOTING THE ENGINE (Cont’d) PROBLEM

CAUSE

Engine overheats.

CORRECTION

PAGE

Restriction in cooling air flow.

Check for debris on radiator grill.

–

Fan motor is damaged.

Repair or replace fan motor as needed.

–

Fan motor by–pass valve is stuck.

Repair as needed.

D/S

Engine is overheated.

Run at full throttle.

–

TROUBLESHOOTING THE DRIVE SYSTEM PROBLEM

CAUSE

No drive on both sides.

Drive belt is broken.

Replace drive belt.

D/S

Hydraulic fluid is low.

Check fluid level. Add as needed.

43

Damaged hydraulic pump.

Check condition of pump and replace as needed.

D/S

Hydrostatic system is damaged.

Check hydrostatic system.

D/S

Control linkage is disconnected.

Repair linkage.

D/S

Hydrostatic system is damaged.

Check hydrostatic system and make repair as needed.

D/S

Wrong tire pressure.

Check all tires for correct pressure.

46

Steering linkage interference.

Check steering linkage and adjust as needed.

D/S

Hydrostatic system is damaged.

Check system. Repair as needed.

D/S

Loader moves when levers are in neutral.

Steering linkage out of adjustment.

Adjust steering linkage.

D/S

System is overheating.

Hydraulic fluid level is low.

Check fluid level and add as needed.

43

Clean cooling system. Check for debris on radiator grill.

37

Check by–pass valve.

D/S

Bobcat is overloaded.

Use correct size attachment.

D/S

Hydrostatic transmission damge.

Check system and make repair.

D/S

No drive on one side.

Machine pulls to one side.

Cooling system restricted.

is

Low charge (transmission light on).

CORRECTION

dirty.

Air

pressure

PAGE

D/S = Dealer Service Only

–62–

953 Bobcat Loader Operation & Maintenance Manual

TROUBLESHOOTING THE HYDRAULIC SYSTEM PROBLEM No hydraulic action.

Hydraulic action is rough.

Hydraulic action is slow.

Hydraulic cylinders leak fluid.

CAUSE

CORRECTION

PAGE

No hydraulic fluid.

Check fluid level and add as needed.

43

Pedals are disconnected.

Check linkage repair as needed.

–

Hydraulic pump is damaged.

Check pump. Replace as needed.

D/S

Hydraulic fluid is too thick.

Let machine warm up.

14

Hydraulic fluid level is low.

Check fluid level and add as needed.

43

Auxiliary engaged.

Put valve in neutral position.

–

Pedal is hitting floor or debris under pedal.

Check debris.

Remove

8

Cylinders leak internally.

Check condition of cylinders and repair as needed.

D/S

Hydraulic pump is damaged.

Check pump. Replace as needed.

D/S

Control valve is damaged.

Check valve and repair as needed.

D/S

Hydraulic fluid is too thick.

Let machine warm up.

14

Damage to cylinder rods or seals.

Repair cylinders.

D/S

adjustment.

D/S = Dealer Service Only

–63–

953 Bobcat Loader Operation & Maintenance Manual

BOBCAT INTERLOCK CONTROL SYSTEM (BICS™) 953BICSOperation&MaintenanceManual#6724087–SystemsAnalysis

Troubleshooting Chart The following list shows the 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.

Indicator Light

Light ON

Light OFF

Flashing Indicator Means System Problem (See Your Bobcat Dealer for Service) Effect on Operation of Loader When Light Is Number of OFF Flashes Cause

Seat

Operator in Seat.

No Operator in Seat.

Lift and tilt functions will not operate.

Seat Bar

Seat Bar Down.

Seat Bar Up.

Lift, tilt and traction functions will not operate.

3

Lift and tilt functions will not operate.

1 2

Valve

Traction

Control Valve Can Be Used.

Loader can be moved forward & backward.

Control Valve Cannot Be Used.

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

2 3 2

3 3 1 2 3 4 5 6

Power

BICS Controller is operating correctly.

BICS Controller is not operating correctly.

Seat sensor circuit shorted to battery voltage*.

Seat sensor circuit shorted to ground.

Seat bar sensor circuit shorted to battery voltage*.

Seat bar sensor circuit shorted to ground.

Valve output circuit is open.

Valve output circuit shorted to battery voltage*.

Valve output circuit shorted to ground.

Valve output circuit is not grounded.

Traction lock hold coil circuit is open.

Traction lock hold coil circuit shorted to battery voltage*.

Traction lock hold coil circuit shorted to ground.

Traction lock pull coil circuit is open.

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

Traction lock pull coil circuit is shorted to ground.

Lift, tilt and traction functions will not operate.

* Normal BICS operating voltage is less than the electrical system voltage. If voltage is more, the circuit is shorted to system voltage.

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

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

(3) Flashing patterns will repeat every 3.25 seconds.

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

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

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953 Bobcat Loader Operation & Maintenance Manual

MACHINE SIGN TRANSLATIONS Page Number IMPORTANT (6560573) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 WARNING (6577754, 6579528) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 SERVICE SCHEDULE (6596296) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 WARNING (6579511) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 WARNING (6579510) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 DANGER (6702302, 6702301) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

MACHINE SIGN TRANSLATIONS

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953 Bobcat Loader Operation & Maintenance Manual

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953 Bobcat Loader Operation & Maintenance Manual

IMPORTANTE (SPANISH) ESTA MAQUINA ESTA EQUIPADA POR LA FABRICA CON UN AMORTIGUADOR DE CHISPAS DEL SILENCIADOR, APROBADO POR EL SERVICIO DE SILVICULTURA DEL U.S.D.A. (DEPARTMENTO DE AGRICULTURA DE LOS ESTADOS UNIDOS).

ES NECESARIO LIMPIAR ESTE AMORTIGUADOR DE CHISPAS DEL SILENCIADOR PARA MANTENERLO EN BUEN ESTADO. HAY QUE DARLE SERVICIO AL AMORTIGUADOR, VACIANDO LA CAMARA DE CHISPAS CADA 100 HORAS DE FUNCIONAMIENTO. SI ESTA MAQUINA ESTA DESTINADA PARA TRABAJAR EN BOSQUES, MATORRALES O EN PASTOS QUE PUEDAN INCENDIARSE, ENTONCES TIENE QUE ESTAR EQUIPADA CON UN AMORTIGUADOR DE CHISPAS EN EL SISTEMA DEL ESCAPE Y TIENE QUE MANTENERSE EN PERFECTAS CONDICIONES DE TRABAJO. ES NO HACER ESTO CONSTITUYE UNA INFRACCION DE LA LEY ESTATAL DE CALIFORNIA, SECCION 4442, PRC. REFIERASE A LAS LEYES Y REGULACIONES LOCALES EN CUANTO A LOS REQUISITOS DEL AMORTIGUADOR DE CHISPAS.

IMPORTANT (FRENCH) CETTE CHARGEUSE EST EQUIPPEE A LA SORTIE DE L’USINE D’UN SILENCIEUX PARA–ETINCELLES APPROUVE PAR LE SERVICE DES EAUX ET FORETS DES ETATS–UNIS. IL EST INDISPENSABLE D’EFFECTUER UN ENTRETIEN REGULIER DE CE PARE–ETINCELLES AFIN DE LE GARDER EN BON ETAT DE MARCHE. L’ENTRETIEN CONSISTE A VIDER LA CHAMBRE A ETINCELLES TOUTES LES 100 HEURES DE MARCHE. SI CET ENGIN EST UTILISE SUR UN TERRAIN COUVERT D’ARBRES, DE BROUSSAILLES, OU D’HERBAGES INFLAMMABLES, IL FAUT INSTALLER LE PARE–ETINCELLES ET LE GARDER EN BON ETAT DE MARCHE. CONSULTER LES APPLICABLES.

REGLEMENTATIONS

LOCALES

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953 Bobcat Loader Operation & Maintenance Manual

ADVERTENCIA (SPANISH) EVITE HERIDAS O LA MUERTA

• Mantenga le puerta cerrada excepto para dar servicio.

• Mantenga el motor limpio y que no tenga material inflamable.

• Mantenga el cuerpo. objetos sueltos y la ropa lejos de los conductores eléctricos, piezas móviles, piezas calientes y del escape.

• No use el cargador en lugares donde

hay polvo o gases explosivos o materiales inflamables cerca al escape.

• Todos los gases del escape pueden

matar. Ventile siempre el lugar de trabajo.

• No use nunca éter o líquido del arranque en los motores

• Les liquides sous pression peuvent pénétrer au travers de

• Escapes de líquido bajo presión pueden penetrat en la

• L’acide des batteries provoque de graves brûlures, porter

• El ácido de la batería puede causar quemaduras

• Les batteries dégagent des gaz inflammables et

de diesel que tienen tapones encendedores. Use solamente las ayudas para el arranque que sean aprobados por el fabricante del motor. piel y causar heridas graves. Se requiere atención médica inmediata. Use gafas. Use cartón para revisar si hay fugas.

severas, use gafas. Si el ácido hace contacto con los ojos, la piel o la ropa, lávelos bién con agua. Si el contactor fuel en los ojos, lávelo bién y vaya al médico.

• Las baterias producen gas inflammable y explosivo.

la peau et causer de graves blessures. Consulter immédiatement un médecin Porter des lunettes de sécurité. Utiliser du carton pour repérer les fuites. des lunettes de sécurité. S’il entre en contact avec les yeux, la peau ou les vêtements, rincer généreusement à l’eau. Pour les yeux, appeler un médecin. explosifs. Tenir les arcs électriques les étincelles, les flammes et las cigarettes allumées à l’écart.

• En cas de démarrage par pontage, effectuer le dernier

Mantenga lejos, arcos, chispas, llamas y tabaco encendido.

branchement (Câble négatif) au moteur (jamais à la batterie). Pour débrancher, déconnecter d’abord le câble négatif du moteur.

• Para arranque con batería auxiliar, conecte de último el

• Ne jamais utiliser d’éther ou de liquide de démarrage sur

cable negativo al motor del cargador (nunca la batería).

Despues de hacer el arranque con cables, quite peimero la conección negativa del motor.

un moteur diesel avec des bougies de préchauffage.

N’employer que les aides au démarrage approuvées par le fabricant.

AVERTISSEMENT (FRENCH) EVITER LES BLESSURES, VOIRE LA MORT

• Maintenir la porte arrière fermée, sauf pour les entretiens.

• Débarasser le moteur de toute matière inflammable.

• Maintenir le corps, les objets non attachés et les vêtements à l’écart des contacts électriques, des pièces mobiles et brûlantes et de l’échappement.

• Ne pas utiliser la machine dans un endroit chargé de poussières ou de gaz explosifs, et où l’échappement risque de toucher des matériaux inflammables.

• Les gaz d’échappement peuvent être mortels. Toujours aérer.

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953 Bobcat Loader Operation & Maintenance Manual

PROGRAMA DE SERVICIO (SPANISH)

CADA 50 HORAS

CADA 8–10 HORAS • ACEITE DE MOTOR – Revise el nivel de aceite y añada más según sea necesario. No llene en demasía.* • ISTEMA DE AIRE DE MOTOR – Revise por pérdidas y componentes dañados. Cambie el purificador de aire cuando el indicador de condición esté en rojo. Revise el nivel de líquido del sistema de arranque rápido, si lo tiene.

• ISTEMA DE ENFRIAMIENTO DEL MOTOR – Limpie las aletas, las cubiertas y las rejillas de enfriamiento.

Revise el nivel del líquido refrigerante cuando esté frío y añada anticongelante premezclado según sea necesario.* • FILTRO DE COMBUSTIBLE – Purgue el agua atrapada.

• PUNTOS DE PIVOTE – Lubrique los puntos de pivote y del Bob–Tach, de los cilindros de elevación e inclinación y del brazo de elevación con grasa para uso general a base de litio.* • CINTURÓN DE SEGURIDAD/BARRA DE SEGURIDAD Y DISPOSITIVOS DE ENCLAVAMIENTO – Compruebe su funcionamiento.

Repare o cambie según sea necesario. Elimine la suciedad y el polvo de las partes móviles.

• SISTEMA DE CONTROL DE ENCLAVAMIENTO DEL BOBCAT (BICS™) – Compruebe su funcionamiento.

Limpie la suciedad y el polvo y elimine cualquier objeto dejado debajo y detrás del asiento, según se necesario.

• GENERALIDADES – Revise por piezas flojas o rotas, tuercas flojas en las ruedas, pérdidas de aceite, daños en las mangueras, tuberías o llantas y verifique también el funcionamiento de los instrumentos. Repare según sea necesario.

• SISTEMA HIDRÁULICO – Revise el nivel de aceite y añada más según sea necesario.*

• CONTROLES Y FRENO – Revise su funcionamiento y ajuste según sea necesario.

• CORREAS DE TRANSMISIÓN – Revise la condición y

tensión de las correas de la bomba y del ventilador.

Ajuste según sea necesario.* • BOB–TACH – Revise la condición y funcionamiento de la palancas de bloqueo y las cuñas.

• BATERÍA – Revise los cables y la condición de la batería.

• AVISOS EN LA MÁQUINA (CALCOMANÍAS) – Reponga los avisos faltantes o cambie los dañados.* • LLANTAS – Revise por daños y presión correcta. Infle a la PRESIÓN MÁXIMA indicada en el costado de la llanta.

CADA 100 HORAS • ACEITE DE MOTOR – Cambie el aceite y el filtro.* • GUARDACADENA – Revise el nivel de aceite y añada más según sea necesario.* • SILENCIADOR CON PARACHISPAS – Vacíe la cámara de chispas.* • PUNTOS DE PIVOTE – Lubrique las graseras de cuña del Bob–Tach con grasa para uso general a base de litio.

CADA 250 HORAS (o cada 12 meses) • FILTRO DE COMBUSTIBLE – Cambie el filtro y limpie el depósito de sedimentos.

CADA 500 HORAS • SISTEMA HIDRÁULICO/HIDROSTÁTICO – Cambie la tapa de respiración del tanque y dos (2) filtros hidrostáticos (el filtro de la transmisión y del brazo de elevación/cucharón).* NOTA: Se debe cambiar el filtro de la transmisión en un lapso menor si la luz de advertencia permanece encendida durante cinco (5) minutos después de que el aceite alcanza la temperatura de operación.

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953 Bobcat Loader Operation & Maintenance Manual

CADA 1000 HORAS (O CADA 12 MESES)

CUADRO DE PIEZAS DE SERVICIO

• SISTEMA HIDRÁULICO/HIDROSTÁTICO – Drene el

tanque, cambie el fluido y el filtro. Cambie la tapa de respiración del tanque y los tres (3) filtros hidrostáticos (de la transmisión, del brazo de elevación/cucharón y de retorno de motor).* • BICS™ – Revise el control de paso del brazo de elevación.

• GUARDACADENA – Drene y vuelva a colocar lubricante.*

No. de Ref. Símbolo 1.

2.

Description

Número de Pieza

Filtro de Aire Primario

6630939

Filtro de Aire Secundario

6630940

3

Aceite de Motor

4

Filtro de Aceite de Motor

5

Aceite de; Guardacadena

6

Aceite Hidrostático

7

Filtro de Aceite del Mando Hidrostático

Fecha del Servicio/ Can’t de Horas

6511766

6661248

8.

Filtro de Aceite Hidráulico del Brazo de 6598903 Elevación/Cucharón

9.

Filtro de Aceite Hidrostático de Retorno de Motor

6660728

Refrigerante

6724094

10

11.

Grasa de uso General a Base de Litio

12.

Fluido de Arranque

13.

Combustible Diesel

14.

Filtro de Combustible

3885315

Consulte con su distribudor local de Bobcat Para más información, consulte el Manual de operación y mantenimiento

Escoja con Inteligencia sus Repuestos y Servicio Use Repuestos Bobcat Legítimos

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953 Bobcat Loader Operation & Maintenance Manual

PROGRAMME D’ENTRETIEN (FRENCH) TOUTES LES 8 À 10 HEURES

• HUILE À MOTEUR – Vérifier le niveau et ajouter de l’huile au besoin. Ne pas dépasser le niveau indiqué.

• CIRCUIT D’AIR DU MOTEUR – Repérer les fuites et les

éléments endommagés. Re,placer l’élément filtrant lorsque l’indicateur est rouge. Vérifier le liquide du système de démarrage rapide (si la machine est équipée de ce système.

• SYSTÈME DE REFROIDISSEMENT DU MOTEUR – Enlever la saleté des ailettes, des collecteurs d’air et des grilles. Vérifier le niveau de liquide de refroidissement et ajouter de l’antigel prémélangé au besoin.* • FILTRE À ESSENCE – Vidanger l’eau piégée.

• PIVOTS – Graisser le Bob–Tach, les vérins de levage et d’inclinaison, ainsi que les pivots avec une graisse à usages multiples à base de lithium.* • CEINTURE DE SÉCURITÉ ET VERROUILLAGES DE LA BARRE DE SIÈGE ET DES COMMANDES – Vérifier le fonctionnement. Réparer ou remplacer au besoin. Enlever la saleté et les débris des éléments mobiles.

• SYSTÈME DE CONTRÔLE DU VERROUILLAGE BOBCAT (BICS™) – Vérifier le fonctionnement. Enlever la saleté, les débris et les objets sous et derrière le siège.

• GÉNÉRALITÉS – Repérer les pièces desserrées ou brisées, vérifier le fonctionnement des instruments, s’assurer que les écrous des roues sont bien serrés, repérer les fuites d’huile, vérifier la tuyauterie et les pneus. Effectuer les réparations requises.

TOUTES LES 50 HEURES • SYSTÈME HYDRAULIQUE – Vérifier le niveau d’huile et ajouter du liquide au besoin.* • COMMANDES ET FREIN – Vérifier leur fonctionnement et régler au besoin.

• COURROIES D’ENTRAÎNEMENT – Vérifier les courroies de la pompe et du ventilateur. Ajuster au besoin.

• BOB–TACH – Vérifier le fonctionnement et l’état des leviers de verrouillage et les cales.

• BATTERIE – Vérifier les câbles et l’état de la batterie.

• ÉTIQUETTES – Remplacer les étiquettes manquantes ou endommagées.

• PNEUS – Vérifier la pression des pneus et vérifier s’ils sont endommagés. Gonfler à la PRESSION MAXIMUM indiquée sur le flanc.

TOUTES LES 100 HEURES • HUILE À MOTEUR – Remplacer l’huile et le filtre.

• CARTER DE CHAÎNE – Vérifier le niveau d’huile et ajouter au besoin.* • SILENCIEUX PARE–ÉTINCELLES – Vider la chambre à étincelles.* • PIVOTS – Graisser es cales du Bob–Tach avec une graisse à usages multiples à base de lithium.* TOUTES LES 250 HEURES • FILTRE À ESSENCE – Remplacer l’élément filtrant et nettoyer la cuvette de sédiments.

TOUTES LES 500 HEURES (OU TOUS LES 12 MOIS) • SYSTÈME HYDRAULIQUE/HYDROSTATIQUE – Remplacer le bouchon reniflard du réservoir hydraulique et deux (2) filtres hydrostatiques (entraînement et bras de levage/godet). * NOTA: Le filtre du système d’entraînement doit être remplacé plus tôt si le voyant avertisseur reste allumé cinq (5) minutes après que le liquide a atteint sa température de fonctionnement.

TOUTES LES 1000 HEURES (OU TOUS LES 12 MOIS) • SYSTÈME HYDRAULIQUE/HYDROSTATIQUE – Vidanger le réservoir. Remplacer le liquide et le filtre.

Remplacer le bouchon reniflard du réservoir hydraulique et trois (3) filtres hydrostatiques (entraînement, bras de levage/godet et filtre de l’huile de retour du moteur).* • BICS™ – Vérifier la commande de contournement du bras de levage.

• CARTER DE CHAÎNE – Vidanger et remplacer le liquide.

TABLEAU DES PIÈCES Nº de Réf.

1.

2.

Symbole

Description Filtre à Air Primaire

6630939

Filtre à Air Secondaire

6630940

3

Huile à Moteur

4

Filtre de Huile à Moteur Huile du Carter de Chaîne

6

Huile Hydrostatique

7

Filtre à Huile du Système d’entraînement Hydrostatique

6661248

Filtre à Huile du Bras de Levage et du Godet Hydrauliques

6598903

Filtre à Huile Hydrostatique de l’huile de Retour du Moteur

6660728

Liquide de Refroidissement

6724094

9.

10

11.

Graisse à Usages Multiples à Base de Lithium

12.

Liquide de Démarrage

13.

Carburant Diesel

14.

Filtre à Essence

Entretien Date/ Heures

6511766

5

8.

–71–

Nº de Pièce

3885315

Consultez votre distributeur Bobcat local

Consultez le Manuel de l’opérateur et d’entretien pour de plus amples renseignements.

Soyez futés en Pièces et SAV Utilisez les pièces détachées d’origine Bobcat 953 Bobcat Loader Operation & Maintenance Manual

ADVERTENCIA (SPANISH)

ATTENTION (FRENCH)

EVITE HERIDAS O LA MUERTE

EVITER LES BLESSURES OU LA MORT

NO USE NUNCA EL CARGADOR SIN LEER LAS INSTRUCCIONES. LEA EL MANUAL DEL OPERATIO, EL MANUAL DE SERVICIO Y LA GIA DEL OPERARIO.

NE JAMAIS SE SERVIR DE LA CHARGEUSE SANS INSTRUCTIONS. LIRE LE MANUEL DE L’OPERATEUR EL D’ENTRETIEN AINSI QUE LE GUIDE D’UTILISATION.

NO VIAJE O DE LA VUELTA CON LOS BRAZOS DE ELEVACION ARRIBA. CARGUE, DESCARGUE Y DE LA VUELTA ESTANDO EN UN SITIO PLANO Y NIVELADO. NO EXCEDA LA CAPACIDAD NOMINAL DE FUNCIONAMIENTO (VEA EL AVISO EN EL CARGADOR).

NE PAS SE DEPLACER NI VIRER AVEC LE BRAS RELEVES. CHARGER, DECHARGER ET VIRER SUR UN SOL PLAT ET HORIZONTAL. NE PAS DEPASSER LE CAPACITE NOMINALE (CONSULTER L’AUTOCOLLANT APPOSE SUR LA CARGEUSE).

USE LA BARRA DEL ASIENTO. ASEGURESE BIEN EL CINTURON DE SEGURIDAD.

UTILISER L’ARCEAU DE SECURITE. ATTACHER SOIGNEUSEMENT LA CEINTURE DE SECURITE.

NUNCA MODIFIQUE EL EQUIPO NI USE ADITAMENTOS QUE NO ESTEN APROBADOS POR LA COMPAÑIA MELROE.

NE JAMAIS MODIFIER L’EQUIPEMENT NI SE SERVIR D’ACCESSOIRES QUE NE SONT PAS APPROUVES PAR MELROE COMPANY.

MANTENGA LOS PIES EN LOS PEDALES. MAINTENIR LES PIEDS SUR LES PEDALES. EN LA PENDIENTES, MANTENGA EL EXTREMO PESADO DE CARGADOR EN POSICION ASCENDENTE. ANTES DE BAJARSE DEL CARGADOR 1. BAJE LOS BRAZOS DE ELEVACION. COLOQUE EL ADITAMENTO BEIN EN EL SUELO.

DANS LES PENTES, TOUJOURS MAINTENIR LA PARTIE LA PLUS LOURDE DE LA CHARGEUSE VERS LE HAUT. POUR QUITTER LA CHARGEUSE: 1. ABAISSER LES BRAS DE LEVAGE. POSER L’EQUIPEMENT A PLATE SUR LE SOL.

2. PARE EL MOTOR

2. ARRETER LE MOTEUR.

3. PONGA EL FRENO.

3. ENCLENCHER LE FREIN DE STATIONNEMENT.

4. LEVANTE LA BARRA DEL ASIENTO. MUEVA LOS PEDALES HASTA QUE AMBOS SE TRABEN.

4. RELEVER L’ARCEAU DE SECURITE. DEPLACER LES PEDALES JUSQU’A CE QU’ELLES SOIENTE TOUTES DEUX VERROILLEES.

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953 Bobcat Loader Operation & Maintenance Manual

ADVERTENCIA (SPANISH) EVITE HERIDAS O LA MUERTE

PELIGRO (SPANISH)

LLEVE LA CARGA EN POSICION BAJA

EVITE LA MUERTE

EL NO OBEDECER ESTA ADVERTENCIA PUEDE CAUSAR LADEAMIENTO O VUELCOS O PERDIDAD DE LA CARGA Y DE LA VISIBILIDAD.

AVERTISSEMENT (FRENCH) EVITER DES BLESSURES OU LA MORT

• MANTENGASE RETIRADO DE ESTA AREA

CUANDO LOS BRAZOS DE ELEVACION ESTAN ELEVADOS, A MENOS QUE ESTEN TRABADOS POW EL TOPE. • EL MOVER EL PIE DEL PEDAL O FALLA DE UNA PIEZA PUEDEN CAUSAR LA CAIDA DE LOS BRAZOS DE ELEVACION.

DANGER (FRENCH)

TENIR LA CHARGE VERS LE BAS. LE NON RESPECT PEUT ENTRAINER UN BASCULEMENT OU UN RENVERSEMENT DE LA MACHINE, UNE PERTE DE LA CHARGE OU DE VISIBILITE.

EVITER LA MORT

• EVITER CETTER ZONE LORSQUE LES BRAS

DE LEVAGE RELEVÉS NE SONT PAS ASSURÉS PAR DES ARRETS DE BRAS DE LEVAGE. • UNE PEDALE ACTIONNÉE OU UNE PICE DEFECTUEUSE. PEUT PROVOQUER L’ABAISSEMENT DES BRAS DE LEVAGE.

ADVERTENCIA (SPANISH) EL CILINDRO CONTIENE GAS BAJO ALTA PRESION. EL ABNRIR EL CILINDRO PUEDE SOLTAR LA VARILLA Y CAUSAR HERIDAS O LA MUERTE.

AVERTISSEMENT (FRENCH)

PELIGRO (SPANISH)

LES VERINS RENFERMENT UN GAZ SOUS PRESSION. NE JAMAIS OUVRIR UN VERIN CAR LA TIGE RISQUE DE S’ECHAPPER BRUTALEMENT ET DE CAUSER DES BLESSURES OU MEME LA MORT.

EVITE LA MUERTE

• EL FORZAR EL IMPLEMENTO CONTRA EL

SUELO HACE QUE LA RUEDDAS DELANTERAS SE ELEVEN. • NUNCA SE META DEBAJO NI ALCANCE NADA DEBAJO DE LOS BRAZOS DE ELEVACION O DEL CILINDRO DE ELEVACION SIN QUE ESTE INSLADO UN TOPE APROBADO EN LOS BRAZOS DE ELEVACION.

DANGER (FRENCH) EVITER LA MORT

• L’ACCESSOIRE PEUT ETRE APPUYE CONTRE LE SOL ET SOULEVER LES ROUES AVANT.

• NE JAMAIS ALLER SOUS NI METTRE LES

MAINS SOUS LES BRAS OU LE VERIN DE LEVAGE SANS QU’UN ARRET DE BRAS DE LEVAGE APPROUVE SOIT INSTALLE.

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953 Bobcat Loader Operation & Maintenance Manual

953BICSOperation&MaintenanceManual#6724087–MachineSignTranslations

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953 Bobcat Loader Operation & Maintenance Manual

SPECIFICATIONS Page Number CAPACITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 DRIVE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 ELECTRICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 ENGINE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 FLOOR PRESSURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 HYDRAULIC SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 TIRES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 VIBRATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

SPECIFICATIONS

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953 Bobcat Loader Operation & Maintenance Manual

MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES – For use on 953 Series Bobcat Loaders These and other attachments are approved for use on this model Bobcat loader. Do not use unapproved attachments.

Attachments not manufactured by Melroe Company may not be approved.

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

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

DESCRIPTION

6567474 6567462 6567479 6569421 6567530 6567515 6569467 6569471 6531822 6531818

66 inch Dirt Bucket 78 inch Dirt Bucket 78 inch Dirt Bucekt with Teeth 87 inch Dirt Bucket 66 inch Utility Bucket 78 inch Utility Bucket 87 inch Utility Bucket 87 inch Light Material Bucket 70 inch Fertilizer Bucket 77 inch Fertilizer Bucket

Rear Stabilizer/Scarifier 6567685

Combination Bucket Approved by Melroe Company & Sold through Bobcat Loader Dealers

Perform a wide variety of job functions.

The versatile Melroe Bobcat Combination Bucket is ideal for dozing, grappling, leveling, digging, loading and dumping comes with or without teeth.

911C Backhoe

6588100

(Recommended for use with backhoe)

Increase your backhoe performance.

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

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

Auger Industrial Bucket Grapple – 68 in 6567755 – 78 in.

6572085

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

Pallet Fork Frame 6567619 (42’’ & 48’’ teeth available)

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

Model 20 Model 20H

6538563 6704383

Tracks Approved by Melroe Company & Sold through Bobcat Loader Dealers

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

Hydraulic Breaker Model 5500

6571547

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

Up to 750 ft.–lb. impact energy class.

Backhoe or loader mounting. 2–position loader mounting frame for vertical and horizontal breaking. Quick–change tool system – variety of tool system. Low recoil operating cycle.

Industrial Fork Grapple – 68 inch – 78 inch

Level II FOPS Top Kit

6567755 6572085

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

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

6702913

For protection from falling trees, rocks for machines involved in site clearing, overhead demolition or forestry per ISO 3449. (Level I protection is provided with the standard cab.)

Some attachments may not be available from your local dealer.

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953 Bobcat Loader Operation & Maintenance Manual

MELROE COMPANY APPROVED ATTACHMENTS & ACCESSORIES (Cont’d) Tree Transplanter Approved by Melroe Company & Sold through Bobcat Loader Dealers

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

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

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

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

Demolition Shear Approved by Melroe Company & Sold through Bobcat Loader Dealers

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

Turn your Bobcat loader into a demolition contractor’s dream! The LaBounty Shear cuts through a variety of materials such as rebar, scrap metal, concrete, pipe, etc.

The 360o rotation capability allows the shear to work in a variety of positions.

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

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

Hydraulic Fork Positioner Approved by Melroe Company & Sold through Bobcat Loader Dealers

Position pallet fork teeth from the operator’s seat. It uses loader auxiliary hydraulics to change teeth width to handle various pallet sizes.

Some attachments may not be available from your local dealer.

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ADDITIONAL PUBLICATIONS

953BICSOperation&MaintenanceManual#6724087–Specifications

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

SKID STEER LOADER OPERATOR TRAINING COURSE 6722720

OPERATION & MAINTENANCE MANUAL 6724087

–Introduces operator to step–by–step basics of Skid–Steer loader operation. Also available in Spanish P/N 6724036.

OPERATOR’S HANDBOOK 6728358

SAFETY MANUAL 6556500

–complete instruction on the correct operation and the routine maintenance of the BOBCAT loader.

–provides basic safety procedures and warnings for your BOBCAT loader. Also available is Spanish P/N 6724451.

SERVICE MANUAL 6724352

–gives basic operation instruction and safety warnings.

SAFETY VIDEO 6724793 –gives complete maintenance and overhaul instructions for your BOBCAT loader.

–provides basic safety instructions.

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PARTS MICROFICHE –Up–to–date PARTS information is also available. See your BOBCAT dealer.

953 Bobcat Loader Operation & Maintenance Manual

WARRANTY 400–900 Series Bobcat Loaders The Melroe Company warrants to its authorized dealer and authorized dealers of Melroe Equipment, Ltd., who in turn warrants to the original buyer (owner) that each new Bobcat Loader will be free from proven defects in material and workmanship for 12 months after delivery to the owner.

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

The warranty does not apply to tires or other trade accessories not manufactured

by Melroe. The owner shall rely solely on the existing warranty, if any, of the respective manufacturers thereof. Warranty does not cover replacement of scheduled service items such as oil, filters, tune–up parts, and other high–wear items. The warranty does not cover damages resulting from abuse, accidents, alterations, air flow obstructions, or failure to maintain or use the Melroe product according to the instructions applicable to it.

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

6570162 (1–96)

Printed in U.S.A.