Table 2-2. Unit Preventive Maintenance Checks and Services (PMCS)
for the M915 Family of Vehicles (Cont).
Item to Check/
Not Fully Mission
Refer to TM 9-2320-363-10 for
operation of brake components.
Test braking response to brake pedal.
Response should be immediate.
At approximately 30 mph (48 kph),
apply brake pedal. Vehicle should
stop smoothly without noticeable side
pull or chatter.
After stopping vehicle, with
transmission in gear, release brake
pedal. Wheel brake release should be
With vehicle on downgrade and
transmission in N (Neutral), set
parking brake. Vehicle should not
Start vehicle moving downhill. 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 braking
power with all 6 cylinders engaged In
Cautiously feel each wheel hub and
brakedrum. Wheel hubs and
brakedrums may be hot. Failure to
follow this warning may result In
Immediately after road test, carefully
check and compare each wheel hub
and brakedrum for overheating, which
could Indicate a dragging brake. A
cool wheel hub and brakedrum could
mean Improperly adjusted, defective,
or Inoperative brakes.
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