TM-5-3805-254-34

TRUCK, DUMP, 20 TON, 6X4, ON-OFF HIGHWAY 71,000 GVW

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL

MARCH 1993

TM-5-3805-254-34 - Page 375 of 727

TM 5-3805-254-34

9-2.

INTERAXLE DIFFERENTIAL MAINTENANCE (Con’t).

6.

Wrap twine (58) around gear set pinion (22).

7.

Apply 9 tons (8 t) of pressure on gear set pinion

(22) and measure preload by pulling on twine

(58) with a spring scale.

8.

Preload should be 5-15 Ib,-in.

(7-20 N-m) of

rotating torque, not starting torque.

9.

If preload is not correct, replace pinion bearing spacer (51) with a thinner spacer to increase torque, or thicker

spacer to decrease torque.

10.

Install inner adjusting nut (48), adjusting nut spacer plate (47), pinion bearing washer (46), and pinion bearing

jamnut (45).

Torque pinion bearing jamnuts to 1100 lb.-ft.

(1492 N•m), using torque multiplier.

11.

Bend tab on pinion bearing washer (46) to secure pinion bearing jamnut (45).

TA703960

9-27