Loader Bobcat 773. Manual — part 3
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773 BICS Loader
Service Manual
PREVENTIVE MAINTENANCE (Cont’d)
OPERATOR CAB
Description
1–8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lowering The Operator Cab
1–10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Raising The Operator Cab
1–9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency Exit
1–8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PIVOT PINS
1–35
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOTE START SWITCH
Procedure
1–37
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEAT BAR RESTRAINT SYSTEM (Advanced Hand Controls)
Description
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Inspection
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Maintenance
1–13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEAT BAR RESTRAINT SYSTEM (Foot Pedals)
Description
1–11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Inspection
1–11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Maintenance
1–11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SEAT BAR RESTRAINT SYSTEM (Mechanical Hand Controls)
Description
1–12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Inspection
1–12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Bar Maintenance
1–12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE SCHEDULE
Chart
1–3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SPARK ARRESTOR MUFFLER
Cleaning Procedure
1–26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STOPPING THE BOBCAT LOADER
1–6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TIRE MAINTENANCE
Tire Mounting
1–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Rotation
1–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Nuts
1–27
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOWING THE LOADER
Procedure
1–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TRANSPORTING THE LOADER
Procedure
1–5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
Number
Revised Jan. 99
Check wheel nut torque every 8 hours for the first 24 hours.
Replace filter element after the first 50 hours and when the transmission warning light comes ON.
Or every 12 months.
*
Inspect the new belt after first 50 hours.
First oil and filter change must occur at 50 hours; 250 hours thereafter.
Engine Oil
Check the oil level and add oil as needed.
Engine Air Filter
Check condition indicator or display panel. Service only when
and Air System
required. Check for leaks and damaged components.
Engine Cooling System
Clean debris from oil cooler, radiator and grill. Check coolant level
in recovery tank (engine cold). Add coolant as needed.
Tires
Check for damaged tires and correct air pressure.
Seat Belt, Seat Bar, Foot
Check the condition of seat belt. Check the seat bar, and foot pedal
Pedal or Hand Control
interlocks or hand control interlocks. Clean dirt and debris from
Interlocks
moving parts.
Safety Signs and Safety
Check for damaged signs (decals) and safety tread. Replace any
Tread
signs or safety treads that are damaged or worn.
Indicators & Lights (Opt.)
Check for correct operation of all indicators & lights.
Operator Cab
Check the fastening bolts, washers & nuts. Check the condition of
cab.
Lift Arms, Cyl., Bob–Tach
Lubricate with multi–purpose lithium based grease.
Pivot Pins and Wedges
Fuel Filter
Remove the trapped water.
Bobcat Interlock Control
Check BICS
TM
functions. Clean dirt, debris or objects from under
System (BICS
TM
)
and behind seat and around brake pedal as required.
Hydraulic Fluid, Hoses and
Check fluid level and add as needed. Check for damage and
Tubelines
leaks. Repair or replace as needed.
Final Drive Trans.
(Chaincase)
Check oil level.
Foot Pedals, Hand Controls,
Check for correct operation. Repair or adjust as needed.
and Steering Levers
Wheel Nuts
Check for loose wheel nuts and tighten to 105–115 ft.–lbs.
(142–156 Nm) torque.
Parking Brake
Check operation.
Spark Arrestor Muffler
Clean the spark chamber.
Battery
Check cables, connections and electrolyte level. Add distilled water
as needed
Steering Shaft
Grease two fittings.
Engine/Hydros. Drive Belt
Check for wear or damage. Adjust as needed.
Fan Drive Gearbox
Check gear lube level. Add as needed.
Alternator Belt
Check belt tension and adjust as needed.
Engine Oil and Filter
Replace oil and filter. Use CD or better grade oil and Melroe filter.
Fuel Filter
Replace the filter element.
Hydraulic Reservoir
Replace the reservoir breather cap.
Breather Cap
Hydraulic Reservoir
Replace the fluid.
Final Drive Trans
.
(Chaincase)
Replace the fluid.
Hydraulic/Hydrostatic Filter
Replace the filter element.
Case Drain Filters
Replace the filters.
Bobcat Interlock Control
Check lift arm bypass control
System (BICS
TM
)
W–2003–0199
ITEM
SERVICE REQUIRED
8–10
100
500 1000
250
*
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.
50
Revised June 01
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 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.
773 BICS Loader
–1–3–
Service Manual
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 the 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.
Revised June 01
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 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 [A].
W–2003–0199
B
P–03869
C
P–03868
A
B–07023
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773 BICS Loader
Service Manual
TRANSPORTING THE BOBCAT 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 (See SPECIFICATIONS Page 9–1, for
weight of loader.).
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 [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.
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 SPECIFICATIONS Page
9–1.)
•
Turn the key switch to ON and press the traction
lock override button.
•
Tow the Bobcat at 2 MPH (3,2 km/hr) or less for not
more than 25 feet (7,6 meters).
If the electrical system is not functioning part of the brake
system must be disassembled to move the loader. (See
TRACTION LOCK Removal and Installation procedure
Page 8–1.)
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
Revised Jan. 99
B
P–05077
P–10638
6707867
P–10646
A
P–10643
SUPPORT
773 BICS Loader
–1–5–
Service Manual
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