C3, TM 9-2320-211-20
Table 2-2. Organizational Preventive Maintenance Checks and Services (continued).
A-Annually
B-Biennially
S-Semiannually
Item To Be
Interval
Item
sA B
Inspected
Procedures
No.
d. With vehicle on incline and transmission in neutral, engage park-
ing brake. Vehicle should not move.
a. Check vehicle response to steering wheel action. Vehicle should
7
Steering
respond instantly. Check steering wheel free play. With vehicle moving
forward, free play should not exceed more than 1 inch (2.54 cm.) in
either direction.
b. Turn steering wheel to extreme left, then right, to detect hard
steering, steering backlash, or shimmy.
c. With vehicle on straight, level terrain, lightly hold steering wheel
to detect pull or wander.
a. Check engine operation at all speeds. Be sure that engine does not
8
Engine
exceed governed speed (2100 rpm).
b. Observe engine instruments to detect malfunctions.
c. Be alert for unusual noises or smells.
a. Check for response to shifting and smoothness of operation in all
9
Transmission
speed ranges.
b. Be alert for unusual noises and difficulty in shifting in any speed
range.
Engage transfer to insure proper operation. Observe smoothness of
Transfer
10
engagement.
Observe how vehicle responds to road shocks. Shifts or constant bounc-
11
Suspension
ing indicates malfunction.
Pull out to stop engine. When engine has stopped, push in to original
12
Emergency fuel
position.
cut-off control
AFTER ROAD TEST:
Clutch
Check clutch free travel. Free travel must be from 2 to 2 inches.
13
q
(5.08 to 6.35 cm.). Determine if the action of the pedal return spring
is satisfactory. With the transmission in neutral, depress the clutch
pedal and listen for unusual noise which may indicate a defective
release bearing. Note if the clutch disengages completely or if
it has a tendency to drag. Note if the clutch chatters, grabs, or
slips. Repair as necessary.
a. Beginning at rear of vehicle, cautiously feel each wheel hub and
Hubs and drums
14
q
brake drum for overheating which can indicate a defective wheel
bearing or dragging brake.
b. Brake drums cool to the touch usually indicate improper
q
adjustment, defective or inoperative brake.
