Service Manual

TROUBLESHOOTING
5xi Series Tractor Hydraulic Service Manual 4 - 3
4
CHECK MOTION
CONTROL LINKAGE
CHECK OIL LEVEL
CHECK INPUT DRIVE &
TRANSAXLE
OK OK
NOTE:
IF THE HYDRAULIC LIFT SYSTEM OPERATES NORMALLY THE
TRANSMISSION CHARGE PUMP IS WORKING.
FILL TO
PROPER LEVEL
CLEAN, LUBRICATE, ADJUST,
REPAIR, OR REPLACE
REPAIR OR
REPLACE
LOW FAULTY FAULTY
CHECK CHARGE
PRESSURE
REPAIR/REPLACE HYDROSTATIC
TRANSMISSION
Possible Defects:
Acceleration Valve
Stuck Open
Both Check Valves
Stuck Open
High Internal Leakage Due to
Wear/Contamination
Mechanical Failure
INSPECT FITTINGS, LINES,
HOSES, HYDRAULIC LIFT
VALVE FOR BLOCKAGE
INSPECT
OIL FILTER AND
POWER STEERING
SCREEN
REPAIR/REPLACE
HYDROSTATIC
TRANSMISSION
Possible Defects:
Charge Relief
Valve Stuck Open
Faulty Charge Pump
High Internal
Leakage Due to
Wear/Contamination
Mechanical Failure
REPAIR OR
REPLACE
REPLACE
OK OK
LOW
OK
FAULTY
CLOGGED
OK
CHECK THAT SPEED SELECTOR IS NOT IN NEUTRAL
OK
TRACTOR WILL NOT OPERATE IN EITHER DIRECTION