TM-9-2320-279-20-2

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; ORGANIZATIONAL MAINTENANCE, VOLUME 2 OF 3

TM-9-2320-279-20-2 - Page 304 of 938

(9)

(10)

Wheel

Remove outer bearing

cup (12) from front of

wheel hub (6).

Remove ten wheel

studs (13) and separate

wheel hub (6) from

drum (7).

TM 9-2320-279-20-2

Maintenance Instructions (Cont)

CAUTION

Do not use chisel to remove wear ring.

Axle spindle could be damaged.

NOTE

●

M984E1 does not have wear ring.

●

Always replace wear ring when

replacing wheel bearings.

●

Use round end of ball peen hammer to

flatten wear ring for removal.

(11)

Remove wear ring (14) from axle

spindle (8).

b. Cleaning/Inspection.

(1)

Clean and inspect inner bearing, inner bearing cup, and outer bearing cup for cracks and

pitting (TM 9-214).

(2)

Inspect wheel studs for stripped threads, breaks, cracks, or loose fit in hub. If damaged, replace.

(3)

Inspect hub for breaks or cracks, and grooves at braking surface. If damaged, replace.

(4)

(M984) If inner bearing, inner bearing cup, outer bearings, or outer bearing cup are damaged,

replace wear ring.

NOTE

(M984) Replace wear ring whenever oil seal is replaced

12-21