TM 9-2320-211 -20-1
Table 1-1. Organizational Preventive Maintenance Checks and Services
S-Semiannually
B-Biennially
A-Annuallv
Item To Be
Interval
Item
Procedures
Inspected
No.
sAB
g. With vehicle on incline and transmission in neutral, engage parking
brake. Vehicle must not move.
a. Check vehicle response to steering wheel action. Vehicle must respond
Steering
7
instantly. Check steering wheel free play. With Vehicle moving forward,
free play must not exceed 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, slightly hold steering wheel to
detect pull or wander.
a. Check engine operation at all speeds. Be sure that engine does not ex-
Engine
8
ceed governed speed (2850 -2900 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
Transmission
9
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 en-
Transfer
10
gagement.
Observe how vehicle responds to road shocks. Shifts or constant bounc-
Suspension
11
ing indicates malfunction.
Deleted
Emergency fuel
12
cut-off control
NOTE
Check clutch free travel. Free travel must be from 2to 21/2 inches.
Clutch
13
Determine if the action of the pedal return spring is satisfactory. With
the transmission in neutral, depress the clutch pedal and listen for un-
usual 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
brake drum for overheating which can indicate a defective wheel bearing
or dragging brake.
b. Brake drums cool to the touch usually indicate improper adjustment,
defective or inoperative brake.
c. Check that master cylinder is not loose, damaged, or leaking.
1-10 Change 1
