Table 2-1. Operator/Crew Preventive Maintenance Checks and Services (PMCS) (Con't).
B - Before
D - During
A - After
W - Weekly
ITEM TO BE INSPECTED
EQUIPMENT IS NOT
PROCEDURE: CHECK FOR AND HAVE REPAIRED,
FILLED, OR ADJUSTED AS NEEDED
Check for leaks in airbrake system by stopping en-
Any leaks are evident.
gine of tractor when air pressure is at maximum.
Observe air pressure gage for one minute and note
any drop in air pressure reading. Notify Unit maintenance
of any leaks found.
Apply semitrailer brakes and observe if they operate
Semitrailer brakes inoperative.
Cautiously feel each wheel hub and drum.
Wheel hubs and drums maybe hot. Failure
to follow this warning may result in burns.
Check drums and wheel hubs (5) immediately after
operation; check for a drum and wheel hub that is hotter
or cooler than the others. An overheated drum and
wheel hub indicates an improperly adjusted or defective
service brake, or dry wheel bearing. An abnormally cool
condition indicates an inoperative brake. Report any
abnormal conditions to Unit maintenance.
Check the kingpin (6) for any cracks and gouges.
A crack of any size is noted
anywhere on the kingpin or
A nick, chip, or gouge deeper
than 1/8 in. (3.18 mm) is noted
anywhere on the wear surface
of the kingpin.
2-10 Change 2