TM 10-3810-307-24-1-1
Direct/General Support Troubleshooting
SYMPTOM
PROBABLE CAUSE
CORRECTIVE ACTION
TRANSMISSION/TORQUE CONVERTER
1. Transmission OIL TEMP
a. Worn oil sealing rings.
a. Disassemble and rebuild
gauge indicates
transmission/converter
transmission overheating.
assembly.
b. Oil pump defective.
b. Replace pump.
2. Converter noisy.
a. Oil pump defective.
a. Replace pump.
b. Worn or damaged bearings.
b. Disassemble, determine faulty
bearing, and replace.
3. Low power.
a. Low engine rpm at converter
a. Adjust engine.
stall.
b. Worn oil sealing rings.
b. Disassemble and rebuild
transmission/converter
assembly.
c. Oil pump defective.
c. Replace pump.
4. Low clutch pressure.
a. Clutch pressure regulating
a. Clean valve spool and housing.
valve spool stuck open.
b. Faulty charging pump.
b. Replace pump.
c. Broken or worn clutch shaft
c. Replace sealing rings.
or piston sealing rings.
d. Clutch piston bleed valve
d. Clean bleed valves thoroughly.
stuck open.
5. Low converter charging
a. Suction screen plugged.
a. Clean suction screen.
pump output.
b. Air leaks a pump intake hose
b. Tighten all connections or
and connections or
replace hose if necessary.
collapsed hose.
c. Defective oil pump.
c. Replace pump.
HYDRAULIC SYSTEM
1. No oil flow in system.
Hydraulic pump defective.
Repair or replace pump.
2. Excessive pressure
System relief valve set too high.
Use appropriate pressure gauge
buildup.
and adjust relief valve as
necessary.
3. Sticking valve spool.
a. Dirt in system.
a. Change oil and flush system.
b. Distortion caused by
b. Retorque tie bolts.
overtorquing tie bolts.
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