Direct Support Mechanical Troubleshooting - continued

TM 9-2320-386-24-1-2

0293 00

Direct Support Mechanical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Step 2. Check axle housing condition. Inspect axle housing for external evidence of gear oil.

a. If axle housing has pinhole leaks, repair (TM 9-237) or replace (TM 9-2320-361-34).

b. If axle housing is cracked or damaged, replace (TM 9-2320-361-34).

END OF TESTING!

38. DIFFERENTIAL LEAKS OIL AT COMPANION FLANGE

Step 1. Check through-shaft for free play.

a. Place end of prybar between differential housing and companion flange. Apply pressure to

prybar.

b. If companion flange moves, inspect input and output bearings and adjust bearing

preload (TM 9-2320-361-34).

Step 2. Check companion flange for damage or wear.

a. Disconnect propeller shaft (TM 9-2320-361-20) and remove companion flange (TM 9-2320-361-34).

b. Inspect seal surface for nicks, gouges, or corrosion that could damage seal. Check for wear

grooves.

c. If inspection reveals any of the above symptoms, replace companion flange and oil seal

(TM 9-2320-361-34).

TIRES AND WHEELS

39. ABNORMAL TIRE WEAR (FRONT AXLE)

Check condition of steering knuckle sleeve bushings and end play (TM 9-2320-361-34).

a. If steering knuckle sleeve bushings are defective, replace (TM 9-2320-361-34).

b. If steering knuckle end play is excessive, adjust by replacing with correct shim(s)

(TM 9-2320-361-34).

c. If steering knuckle end play remains excessive, replace sleeves or axle housing

(TM 9-2320-361-34).

END OF TESTING!

40. ABNORMAL TIRE WEAR (REAR AXLE)

Check rear end frame and suspension alignment (TM 9-2320-361-34).

If alignment is incorrect, adjust (TM 9-2320-361-34).

END OF TESTING!

STEERING GEAR

41. EXCESSIVE PLAY IN STEERING

Step 1. Check steering knuckle for defects (malfunction 39).

Step 2. Check steering gear for defects. Inspect for excessive free play (TM 9-2320-361-20).

a. If steering gear free play is excessive, adjust (WP 0182 00).

b. If steering gear free play remains excessive, replace (WP 0349 00) or repair

(TM 9-2320-361-34).

END OF TESTING!