Service Manual

Malfunction Check Cause Measures
3
Defective of
charge pump
Exchange charge pump
assy or rotor cmp
Main pressure of pump
Defective of
charge relief valve
Exchange charge
relief valve cmp
Defective of
check valve
Exchange CR-valve
Exchange valve plate
or pump unit
Examine cooler and oil
Damage of
valve plate
Defective of charge
Damage of
piston
Excessive inside leakage
Exchange cylinder
block cmp or
Pump unit
Examine cooler and oil
Damage of
cylinder block
*3
clogging of filter
Exchange filter
and oil of tank
Defective of motion
in motor unit
Exchange motor unit
or inner parts of motor
Motor unit
Motion of linkage
to pump unit
Defective of linkage
to pump unit
Adjust linkage
to pump unit
Stroke of
pump lever
Damage of
pump lever
Tightening screw of
lever or exchange
pump lever
Defective of motion
in pump unit
Exchange pump unit
or inner parts of pump
Although vehicle moves
forward and reverse,
moves at low speed only.
Oil leakage from
piping or hose
Damage of
seal surface
Exchange case
or joint
Damage of piping
or hose
Exchange piping
or hose