TM-9-2320-280-34

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

JANUARY 1996

TM-9-2320-280-34 - Page 983 of 1258

TM 9-2320-280-34

18-4.

TRANSFER CASE REPAIR (MODEL 242) (Cont ’d)

20.

Inspect drive chain (23) for breaks, missing parts, kinks, and evidence of scratching on contact

surfaces.

Replace drive chain (23) if damaged.

21.

Inspect drive sprocket (24) and driven gear (26) for cracks, breaks, bent or twisted splines, and

broken or chipped gear teeth. Replace gears (24) or (26) if damaged.

22.

Inspect front output shaft (25) for cracks, bent or twisted splines, damaged threads, and scored

bearing and sealing surfaces.

Minor scoring and thread damage is reparable.

Replace front output

shaft (25) if damaged.

23.

Inspect low range gear (29) for cracks, breaks, chipped or broken gear teeth, pinion side free play

and smooth rotation.

If front and rear carriers are loose, tighten screws (28); if still loose, replace low

range gear (29).

For all other damage, replace low range gear (29).

24.

Inspect oil cooler (27) for bends, breaks, and leaks.

Repair by straightening bent fins. Replace oil

cooler (27) if damaged.

18-43