4-46. WHEEL, DRUM, AND WHEEL BEARING MAINTENANCE (Con't).
Working from wheel (14) end, drive out inner wheel bearing (17) and oil seal (18). Remove
inner bearing cup (16) from wheel side. Remove outer bearing cup (13) from drum (19) side.
Discard oil seal.
DO NOT damage axle with chisel.
If metal wiper of oil seal (18) has remained pressed onto spindle (2), use a chisel to split it,
then remove from spindle.
To separate wheel (14) from drum (19), remove five locknuts (5), bolts (20), and ten wash-
ers (4). Discard locknuts.
b. CLEANING AND INSPECTION
Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective
goggles, face shield, and gloves, and use only in a well-ventilated area.
Avoid contact with skin, eyes, and clothes and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat. The solvent's flash point is
100F-138F (38C59C). If you become dizzy while using cleaning sol-
vent, immediately get fresh air and medical help. If solvent contacts eyes,
immediately wash your eyes with water and get medical aid.
Clean and inspect outer and inner wheel bearings and bearing cups in accordance with
TM 9-214. If any wheel bearing or bearing cup needs replacing, replace all wheel bearings
and bearings cups.
Clean ail removed components, axle spindle shoulder, and wheel hub with dry cleaning sol-
vent. Remove any burrs with abrasive cloth and wipe clean with dry cleaning solvent.
Inspect drum for cracks, scoring, pitting, or grooves. Check edge of drum for cracks or
broken areas. If drum is damaged, notify direct support maintenance.
Inspect wheel for cracks or other damage. If damaged, replace wheel.
If any wheel stud (3) is damaged and needs replacement, all wheel studs
must be replaced. Replacing only the damaged wheel stud and remounting
the wheel may result in further damage and injury to personnel.
inspect wheel studs (3) for damage. If damaged, remove all five wheel studs. Install five new
Inspect all remaining removed components for damage. Replace if damaged.