Table 1. Unit Preventive Maintenance Checks and Services (PMCS) for the M915 Family of Vehicles - Continued

TM 9-2320-302-20-2

Table 1. Unit Preventive Maintenance Checks and Services (PMCS)

for the M915 Family of Vehicles - Continued.

LOCATION

ITEM TO

ITEM

MAN-

CHECK/

NOT FULLY MISSION

NO.

INTERVAL HOURS

SERVICE

PROCEDURE

CAPABLE IF:

NOTE

Semi-

Road Test,

(Con't) annual

Brakes

Use a ground guide for step b.

b. With vehicle on level ground

and parking brake applied,

attempt to move vehicle for-

ward. Have ground guide check

for a rolling wheel that would

indicate a broken spring in

brake chamber. If a broken

spring is suspected, perform

inspection procedure (WP 0182

00).

c. At approximately 30 mph (48

kph), apply brake pedal. Vehicle

should stop smoothly without

noticeable side pull or chatter.

d. After stopping vehicle, with

transmission in gear, release

brake pedal. Wheel brake

release should be immediate.

e. With vehicle on downgrade and

transmission in N (Neutral), set

parking brake. Vehicle should

not move.

f. While vehicle is moving,

engage engine Jake brake and

check operation in all switch

positions (2, 4, and 6 cylinders

braking power). Ensure that

vehicle speed drops in each

position, with maximum brak-

ing power with all 6 cylinders

engaged in braking.

WARNING

Cautiously feel each wheel hub and brakedrum. Wheel hubs and

brakedrums may be hot. Failure to follow this warning may result

in serious burns.

0023 00-3