TM 9-2350-238-20-1
2-11. TROUBLESHOOTING INFORMATION (CONT).
Table 2-3. UNIT TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
77.
AUXILIARY DRIVE OR POWER TAKEOFF MAKES TOO MUCH NOISE.
Step 1.
Check auxiliary drive oil level.
Add oil to FULL mark on gage. Refer to the PMCS/lubrication table,
page 2-13.
Step 2.
Check for worn or damaged universal joints in drive shaft.
Enter right hull tunnel and turn power takeoff to auxiliary drive shaft back
and forth. If any play is in drive line, replace auxiliary drive shaft. Refer
to page 2-766.
Step 3.
Isolate noise in auxiliary drive or power takeoff. Remove exhaust pipes. Refer
to page 2-514. Disconnect drive shaft at power takeoff. Pull drive shaft
coupling from power takeoff and lower drive shaft to hull bottom. Install
exhaust pipes. Start engine. Listen for noise. Stop engine.
a.
If noise was not present, replace auxiliary drive, refer to page
2-766; or notify direct support maintenance for repair.
b.
If noise was present, notify direct support maintenance.
2-78