TM 9-2320-273-20
Table 3-1. Unit Level Preventive Maintenance Checks and Services M915-M920
Item
Interval
Item To Be
Procedure
Not Mission
No.
Inspected
Capable If:
20
Semi-
Trans-
C. Check transmission for cracks, loose
c. Cracks,
loose
Annual
mission
bolts, leaks, and obvious damage.
bolts, or Class Ill
leaks evident.
Continued
d. Inspect transmission output shaft seal
d. Damage or Class
for damage and leaks.
Ill leaks evident.
e. Drain and refill transmission oil every
e. “Do not operate”
6,000 miles (9,654 km) or annually,
received from AOAP
whichever comes first.
lab.
f. Replace transmission filter.
21
Semi-
Exhaust
WARNING
Annual
System
The exhaust pipe and muffler can be-
come very hot during vehicle operation.
Be careful not to touch these parts with
bare hands, or allow body to come in con-
tact with pipe or muffler. Exhaust system
parts can become hot enough to cause
serious burns.
a. Inspect exhaust manifold, exhaust
a. Evidence of cor-
pipes, muffler, and tailpipe for corrosion,
rosion or carbon de-
carbon deposits which may indicate
posits evident.
leaks.
b. Inspect for damaged pipes, loose
b. Pipes damaged,
clamps and leaking gaskets or seals.
clamps loose, gas-
kets or seals leaking.
c. Inspect raincap to make sure it oper-
C. Raincap does not
ates freely.
operate freely, does
not close when en-
gine is off, or miss-
ing.
Change 4 3-10.7
