TM 9-2320-302-20
0021 00-17
Table 1. Unit Preventive Maintenance Checks and Services (PMCS)
for the M915A3 Tractor Truck - Continued.
ITEM
NO.
INTERVAL
LOCATION
PROCEDURE
NOT FULLY MISSION
CAPABLE IF:
ITEM TO
CHECK/
SERVICE
31
(Con’t)
Semi-
annual
Rear Axles,
Suspension
c. Check torque rod rubber bushings for
splitting or deterioration. Notify Direct
Support Maintenance of any damage
found.
d. Check shock absorbers and mounting
hardware
for
looseness
or
damage.
Replace damaged component, if autho-
rized.
32
Semi-
annual
Rear Axle Brake
Components,
Slack Adjusters
a. Check length of spring brake chamber
push rods. Minimum length must be 1/2 in
(12.7 mm). If not, adjust slack adjusters.
b. Lubricate grease fitting (24) at each slack
adjuster with grease (Item 15, WP
0235 00) until new grease flows from
pressure relief valve in pawl capscrew (25).
25
24
