TM 9-2350-247-20-1
PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING
LUBRICATION INSTRUCTIONS — Continued
0128 00
g.
GREASE SEALS, PREFORMED PACKINGS, GROMMETS, AND GASKETS. Preformed packings, seals,
grommets, and gaskets should be replaced when removed unless otherwise stated in the maintenance task. They
should not be reused.
h.
THREADED PARTS. Replace all parts that have stripped or damaged threads. Replace parts that cannot be repaired
by chasing threads with a used tap or die.
i.
RETAINING RINGS.
1) Retaining rings that have defects should be replaced when removed unless otherwise stated in the maintenance
task. They should not be reused.
2) Some retaining rings are beveled on one side. When installing this type of ring, the beveled side must face the
part to be retained.
j.
SPRINGS. Discard springs that have defects. Load and height inspection data, where needed, are given in
maintenance procedures.
k.
SHAFTS AND SPINDLES.
1) Replace shafts and spindles that show signs of wear, binding, scores, cracks, burrs, or clogged oil passages.
WARNING
Air pressure in excess of 30 psi (207 kpa) can injure personnel. Do not direct pressurized air at
yourself or others. Always wear goggles.
2) Remove obstructions with compressed air or by probing with soft wire.
3) Remove burrs and minor surface defects with a cleaning cloth (WP 0542 00, Item 8).
l.
ELECTRICAL PARTS.
1) Replace corroded or burned parts and parts which show sings of mildew.
2) Tighten loose connections.
3) Replace cracked or broken wires, circuit cards, relays, and connectors.
4) Replace cracked, torn, or burned insulation and heatshrink tubing.
m.
CANVAS COVERS AND ROPES.
1) Repair canvas cover tears and ripped seams. See FM 10-16 for canvas and webbing repair.
2) Repair rope and faulty rope ends with twine or adhesive tape. Trim rope ends. Reverse rope that shows minor
wear.
5.
FLUID LEAKS AND CHECKING FOR LEAKS
a.
GENERAL. Fluid leaks in hoses and fluid lines affect the carrier parts operation. The types and classes of leaks are
given below.
CLASS I
Fluid seepage is not great enough to form drops, but it is shown by wetness or color
changes.
0128 00-11
