TM 9-2320-272-24-1
Table 2-2. Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
66. VEHICLE ROLLS WHILE OPERATING REAR WlNCH
Step 1. Check parking brake for proper adjustment.
Adjust parking brake (TM 9-2320-272-10).
Step 2. Check spring brake caging.
Release spring brake cage (TM 9-2320-272-10).
Step 3. Check field chock positioning.
Position chocks facing load for direct pulls (TM 9-2320-272-10).
END OF TESTING!
POWER TAKEOFF (PTO)
67. EXCESSIVE NOISE AT PTO
Step 1. Inspect PTO universal joint for insufficient lubrication.
If necessary, lubricate universal joint (LO 9-2320-272-12).
Step 2. Inspect propeller shaft for bends.
If bent, replace propeller shaft (para. 3-334 or 3-393).
END OF TESTING!
68. HARD SHIFTING OF PTO
Inspect PTO shift linkage for bends, cracks, and improper lubrication.
a. Lubricate shift linkage if necessary (LO 9-2320-272-12).
b. If bent or cracked, notify DS maintenance.
END OF TESTING!
69. LEAKING LUBRICANT AT PTO
Inspect mounting screws for security.
a. Tighten loose mounting screws.
b. If leak continues, notify DS maintenance.
END OF TESTING!
INSTRUMENTS AND GAUGES
70. SPEEDOMETER OR TACHOMETER NOISY OR ERRATIC
Step 1. Inspect tachometer or speedometer flexible shaft for binding and kinks.
If binding or kinked, replace flexible shaft(s) (para. 3-89 or 3-90).
Step 2. Inspect tachometer or speedometer for proper operation.
a. Test operation of tachometer or speedometer by replacing them with a speedometer or
tachometer known to be good (para. 3-88).
b. If test speedometer or tachometer operate properly, replace defective speedometer or
tachometer (para. 3-88).
END OF TESTING!
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