TM 5-3820-245-14&P
5-2. TRANSMISSION TROUBLE SHOOTING (Continued)
CONDITION
PROBABLE CAUSE
REMEDY
Noisy transmission.
A. Improper oil
Add oil if required. Refer
level.
to irregular oil pressure.
B. Clogged oil filter.
Replace oil filter if
necessary.
C. Air leaks.
Inspect around oil tubes,
seals, and gaskets. Repair
as necessary.
D. Loose mounting
Tighten bolts to proper
bolts.
E. Damaged gear
Replace as necessary.
teeth.
F. Flaws in gear
Replace as necessary.
shaft.
G. Flywheel housing
Realign using indicator if
misalignment.
required.
Excessive vibration.
A. Loose mounting
Tighten bolts to proper
bolts.
B. Damaged gear
Replace as necessary.
teeth.
C. Gear box bearings.
Inspect and replace bearings
as necessary.
Difficult to change
A. Transmission
Check for bent, worn, or
gear ratios.
linkage.
broken parts. Replace faulty
parts and readjust linkage.
B. Engaged clutch in
Return lever to neutral.
shuttle box.
C. Drag in shuttle
First check for proper control
box.
linkage adjustment between
control box and control valve.
If clutch drag is still preva-
lent, disassemble clutch stack
and inspect parts in clutch
affected for malfunction.
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