Table 2-1. Operator Preventive Maintenance Checks and Services (PMCS) for M870A3
Trailer (MHET) Continued.
Not Fully Mission
Have an assistant actuate the
Trailer brakes fail to hold
service brakes. Listen for air leaks or air leaks are found.
at the gladhands and air reservoirs.
Actuate trailer brakes and check that Trailer brakes
brakes at all six wheel positions lock. inoperative.
Check tire pressure when tires are
Any tire is flat, missing,
Check wheels for damage.
A wheel is damaged or
Check for debris or foreign objects
lodged between wheels.
Check lug nuts for tightness and
A lug nut missing.
ensure all lug nuts are installed.
HUBODOMETER Inspect hubodometer for damage.
Note mileage before operation and
check periodically for proper operation.