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 TM 55-1905-219-14-3
Table 3-10. Marine Gear Troubleshooting (Cont).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Overheating (Cont).
Step 6.
Check for bearing failure.
Refer to Direct Support Maintenance.
5. Reduced oil pressure.
Step 1.
Check for clogged oil filter element. Fully
clogged oil filter element will drop oil pressure
approximately 10-15 psi (68.95 to 103.43 kPa) from
normal reading.
Replace oil filter element.
Step 2.
Check for broken piston rings on clutch shaft.
Refer to Direct Support Maintenance.
6. Excessive noise.
Step 1.
Check for air leak in oil-sump-to-strainer flexible
hose or oil strainer housing.
Tighten all fittings. Replace a damaged hose.
Step 2.
Check for bearing failure.
Refer to Direct Support Maintenance.
Step 3.
Check for worn or damaged rubber blocks.
Refer to Direct Support Maintenance.
Step 4.
Check for broken or chipped gear teeth.
Refer to Direct Support Maintenance.
7. No neutral.
Step 1.
Check for warped clutch plates.
Refer to Direct Support Maintenance.
3-60
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