Loader Bobcat 853, 853H. Manual - part 3

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853, 853H Loader

Service Manual

PREVENTIVE MAINTENANCE (Cont’d)

REMOTE START SWITCH

Procedure

1–29

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SEAT BAR RESTRAINT SYSTEM

Description

1–11

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Seat Bar Inspection

1–11

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Seat Bar Maintenance

1–11

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SERVICE SCHEDULE

Chart

1–3

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SPARK ARRESTOR MUFFLER

Cleaning Procedure

1–24

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TIRE MAINTENANCE

Tire Mounting

1–25

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Tire Rotation

1–25

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Wheel Nuts

1–25

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TOWING THE LOADER

Procedure

1–5

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TRANSPORTING THE LOADER

Procedure

1–5

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Page

Number

853, 853H Loader

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Service Manual

Check wheel nut torque every 8 hours for the first 24 hours.
Also replace hydraulic/hydrostatic filter element when the transmission warning light comes ON.
Or every 12 months.

* Inspect the new belt after first 50 hours.

Clean or replace case drain filters in the event of any major hydraulic or hydrostatic repair.

Engine Oil

Check the oil level and add oil as needed.

Air Cleaner

Check   condition   indicator   or   display   panel.   Service   only   when
required.

Engine  Cooling  System

Clean debris from oil cooler, radiator and grill. Check coolant level cold
in recovery tank. See Page 1–18 for correct coolant mixture.

Lift Arms, Cyl., Bob–Tach

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

  Pivot Pins & Wedges
Engine Air System

Check for leaks and damaged components.

Tires

Check for damaged tires and correct air pressure.

Seat Belt, Seat Bar & Pedal

Check the condition of seat belt. Check the seat bar and pedal

  Interlocks

interlocks for correct operation. Clean  dirt  and  debris  from moving
parts.

Safety Signs & Safety

Check for  damaged  signs  (decals)  and  safety  tread.  Replace  any

  Tread

signs or safety treads that are damaged or worn.

Operator Cab

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

Fuel Filter

Remove the trapped water.

Hydraulic Fluid, Hoses

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

  & Tubelines

Repair and replace as needed.

Final Drive Transmission

Check oil level.

  (Chaincase)
Battery

Check cables and electrolyte level.

Control Pedals & Steering

Check for correct operation. Repair or adjust as needed.

Wheel Nuts

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

Parking Brake

Check operation.

Alternator Belt

Check tension and adjust as needed.

Engine Oil & Filter

Replace oil and filter.

Spark Arrestor Muffler

Clean the spark chamber.

Engine/Hydro. Drive Belt

Check for wear or damage. Adjust as needed.

Fuel Filter

Replace filter element.

Seat Bar

Grease pivots as needed.

Steering Shaft

Grease three fittings.

Hyd./Hydro. Filter

Replace the filter element.

Hydraulic Reservoir

Replace the reservoir breather cap.

  Breather Cap
Fan Drive Gearbox

Check gear lube level.

Final Drive Transmission

Replace the oil in the chaincase.

Hydraulic Reservoir

Replace the fluid.

Hydraulic Motors

Replace the two case drain filters.

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

W–2003–0199

ITEM

SERVICE REQUIRED

8–10

50

250 1000

100

*

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 and understand the
Operation & Maintenance Manuals, Handbook
and signs (decals) on machine. Follow
warnings and instructions in the manuals when
making repairs, adjustments or servicing.
Check for correct function after adjustments,
repairs or service. Untrained operators and
failure to follow instructions can cause injury
or death.

W–2003–0199

Read the Removal & Installation,  Disassembly  &
Assembly, etc. completely to become familiar with the
procedure before beginning [A].

LIFTING AND BLOCKING THE LOADER

Procedure

Always park the loader on a level surface.

Put jackstands under the front axles and rear
corners of the frame before running the engine
for service. Failure to use jackstands can allow
the machine to fall or move and cause injury or
death.

W–2017–0286

Put floor jack under the rear of the loader [B].

Lift the rear of the loader and install jackstands [B].

Put the floor jack under the front the loader [C].

Lift the front of the loader and put jackstands under the
axle tubes [C].

NOTE: Make sure the jackstands do not touch the

tires.

B

CD–11160

C

CD–11159

A

B–07023

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853, 853H Loader

Service Manual

TRANSPORTING THE LOADER

Procedure

W–2058–0494

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.

The rear of the transport vehicle must be blocked or
supported when loading or un–loading the loader.

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

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

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 [B].

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 and tighten
the chain with a chain tightener.

TOWING THE LOADER

Procedure

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 9–1.)

•

Disengage the parking brake.

•

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

B

MC–01242

P–05090

P–05077

6707867

A

MC–01241

853, 853H Loader

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Service Manual