TM 5-4320-300-14
Table 4-2. Organizational Maintenance Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TEST OR INSPECTION
CORRECTIVE ACTION
If no grease is present, replace the grease seals, bearing cones, cups, hubs, and axle, if
necessary, as described in paragraph 4-44.
d. If grease is present, check for excessive bearing preload. Back off axle nut about 1/4 turn.
Move the wheel several times.
WARNING
Dry cleaning solvent is flammable and potentially
dangerous to people and property. Do not use near
open flame, sparks, excessive heat, or on hot surfaces.
Flash point of P-D-680 solvent is 100-138°F (38-59°C).
Use solvent in a well-ventilated area, and avoid inhaling
fumes. If repeatedly exposed to fumes, seek fresh air
and immediate medical help. Avoid prolonged exposure
of skin to solvent. Wash exposed skin immediately and thoroughly.
If the wheel loosens up and spins freely, remove wheel and hub, any old grease, and bearing
cones and cups. Clean bearing cones and cups by placing them in a wire basket and
agitating them in a container of P-D-680 dry cleaning solvent. Pack bearings about 1/3 full of
MIL-G-10924 grease, and install them in the hubs. Take care to avoid damaging lips of
grease seal when installing hub on axle.
Install axle nut and washer, and tighten nut slightly to seat the bearing. Back off axle nut and
retighten it hand tight.
4-74
