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 TM 55-1905-219-14-3
Table 3-10. Marine Gear Troubleshooting.
NOTE
Refer to paragraph 3-8 for all Marine Gear Maintenance unless otherwise specified.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Low oil pressure.
Step 1.
Check for partially clogged oil strainer.
Remove and clean oil strainer.
Step 2.
Check for stuck pressure regulation piston in
selector valve assembly.
Remove selector valve assembly. Disassemble the
valve, and clean the piston.
Step 3.
Check for broken piston rings in clutches.
Refer to Direct Support Maintenance.
Step 4.
Check for come-home setscrew loose or missing.
Refer to Direct Support Maintenance.
Step 5.
Check for damaged or worn oil pump assembly.
Remove oil pump assembly and replace if worn or
damaged.
Step 6.
Check for incorrect linkage installation on
selector valve assembly.
Adjust linkage so that selector valve stem is
indexed properly by detent pin.
Step 7.
Check for clogged or plugged orifice in the orifice
plate or the selector valve assembly.
Remove orifice plate cover. Clean parts.
3-58
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