Service Manual

TROUBLESHOOTING GUIDE
TRACTOR WILL NOT OPERATE IN EITHER DIRECTION
IF THE HYDRAULIC LIFT SYSTEM OPERATES NORMALLY
THE TRANSMISSION CHARGE PUMP
IS WORKING.
CHECK MOTION
CONTROL LINKAGE
I
I I I
FAULTY FAULTY
ADJUST, REPAIR
REPAIR
OR
PROPER LEVEL OR REPLACE
REPLACE
CHECK CHARGE
REPLACE HYDROSTATIC
.OK-
PRESSURE
Acceleration Valve
Possible Defects:
TRANSMISSION
Stuck Open
Both Check Valves
Stuck Open
High Internal
Leakage Due to
Wear/Contamination
Mechanical Failure
LOW
INSPECT FITTINGS,
LINES, HOSES, HYDRAULIC
LIFT VALVE FOR BLOCKAGE
OIL FILTER
INSPECT
FAULTY CLOGGED
REPAIR
OR
REPLACE
REPLACE
REPLACE HYDROSTATIC
TRANSMISSION
Possible Defects:
Charge Relief
Valve Stuck Open
Faulty Charge Pump*
High Internal
Leakage Due to
Wear/Contamination
Mechanical Failure
'Charge Pump Can be Damaged by Improperly Set Implement Relief Valve. See "Charge Pressure Check"
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