Operator Preventive Maintenance Checks and Services (PMCS) Procedures - Continued.
ITEM TO BE
Visually inspect kingpins for cracks or excessive wear.
Excessive wear, cracks,
Inspect for chips, nicks, gouges, and wear.
Nick or chip deeper than
0.125 in. (3.017 mm) is
found anywhere on wear
surface, or wear exceeds
0.0625 in. (1.59 mm) over
25% of wear surface.
Inspect kingpin plate for cracks and dents.
Kingpin plate is cracked
Inspect all gladhands and rubber grommets
Any gladhand or rubber
grommet is missing
Check for leaks in air reservoir tanks.
Any leaks are evident.
Momentarily, check air tank dump valve release cable.
Inoperative or leaking
Brake Air Lines
Have an assistant operate service brakes. Listen for air Semitrailer brakes fail to
leaks at gladhands and air reservoir.
hold or air leaks
Check tire pressure when tires are cool.
Check tires for gouges, cracks, tread separation, and
Any tire is flat, missing,
foreign objects lodged in tread or tire.
Check wheels for damage.
Any wheel is damaged.
Check lug nuts for tightness and ensure all lugs
Any lug nuts are missing.
Check crane for worn, rusted, broken cable, or
Crane (Tool Box) damage to crane parts.
Inspect hub mileage meter (Figure 1) for damage. Note
mileage on DA Form 2404/5988E.
Hub Mileage Meter.