3-21
GROUP 2 TROUBLESHOOTING
·Change oil, replace parts leaking air.
·Listen to rotating sound at lowspeed
operation. If necessary, replace flex-
ible plate.
·Disassemble, check and replace.
·Disassemble, check and replace.
·Check impeller or check drained oil
for mixing of foreign matter.
If necessary, change oil.
·Disassemble and check. If necessa-
ry, retighten or replace.
·Disassemble, check and replace.
·Disassemble, check and replace.
·Check to see whether or not machine
moves even when transmission is in
neutral position. If so, replace clutch
plate.
·Disassemble, check and replace.
·Disassemble, check and replace.
·Disassemble, check and retighten or
replace.
·Disassemble, check and replace.
TTrouble symptom
1. Excessive oil
temperature rise
1) Torque converter
2) Transmission
·Improper oil level.
·Impeller interfering with surroundings.
·Stator and free wheel malfunctioning.
·Air sucked in.
·Water intruding into transmission
case.
·Bearing worn or seizing.
·Gauge malfunctioning.
·Clutch dragging.
·Bearing worn or seized.
·Check oil level. Add or drain oil as
necessary.
·After draining oil from oil tank and tra-
nsmission, check and replace interfe-
ring parts.
·Check engine (stalling) speed.
If necessary, replace.
·Check the inlet side joint or pipe.
If necessary, retighten joint or repla-
ce gasket.
·Check drained oil.
If necessary, change oil.
·Disassemble, inspect, repair or repla-
ce.
·Check and, if necessary, replace.
·Check to see whether or not machi-
ne moves even when transmission is
placed in neutral position. If so, repl-
ace clutch plate.
·Disassemble, check and replace.
PProbable cause Remedy
2. Noise operation
1) Torque converter
2) Transmission
·Cavitation produced.
·Flexible plate damaged.
·Bearing damaged or worn.
·Gear damaged.
·Impeller interfering with surroundings.
·Bolt loosening.
·Spline worn.
·Noise gear pump operation.
·Dragging caused by seizing clutch.
·Bearing worn or seizing.
·Gear damaged.
·Bolt loosening.
·Spline worn.
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