TM 9-2320-272-24-1
Table 2-1. Unit Preventive Maintenance Checks and Services (Contd).
NOT FULLY
ITEM TO
ITEM
MISSION
NO. INTERVAL
CHECK/
PROCEDURE
CAPABLE IF:
SERVICE
ROAD TEST
3
Semi-
Throttle
annual (Contd)
Perform all During operation checks listed in
TM 9-2320-272-10 PMCS in addition to those that
follow. Drive vehicle at least 5 mi. (8 km) over varied
terrain, both on and off road. This will provide
ample time to check reported malfunctions and to
locate unreported malfunctions.
Lubrication intervals of every 1,000 mi. (1,600 km)
or monthly, and 3,000 mi. (4,800 km) or 3 months,
will be performed with maintenance or, when
practical, lubrication services will be made to
coincide with the semiannual preventive
maintenance services. For this purpose, a 10 percent
tolerance (variation) in specified lubrication point
mileage is permissible.
4
Semi-
Brakes
a. Check brake pedal for free travel. Adjust brake pedal
annual
if required (para. 3-196).
b. Reach a desired speed and lightly apply brake pedal
with steady force. Vehicle should slow down immediately
and stop smoothly, without side pull or chatter.
c. After stopping vehicle, and with transmission select
lever in 1-5 (drive), release brake pedal. All wheel brakes
should release immediately and without difficulty.
NOTE
5
Semi-
Engine
annual
Ensure engine tachometer does not exceed
maximum governed speed of 2,400 rpm with no
load.
a. Check engine throughout the range of operating
speeds. Refer to TM 9-2320-272-10.
b. Check engine instruments. Refer to TM 9-2320-272-10
for proper readings.
a. Oil temper-
Transmis-
a. Check transmission oil temperature gauge. Normal
6
Semi-
o
o
ature exceeds
range is 120 -220F (49 -104C).
sion
annual
300F (149C).
b. Check for response to shifting and smoothness of
operation in all speed ranges. Refer to TM 9-2320-272-10
for proper shifting speed ranges.
Shift transfer case lever between HI and LOW positions to
7
Semi-
Transfer
ensure proper operation. Observe for smoothness of
annual case
engagements. Refer to TM 9-2320-272-10 for proper
shifting speed ranges and operation.
Observe how vehicle responds to road shock. Constant
8
Semi-
Suspen-
bouncing or swaying from side-to-side is an indication of a
annual
sion
malfunction.
2-5
