TM-9-2320-273-34

TRUCK TRACTOR, LINE HAUL; LIGHT EQUIPMENT TRANSPORTER; TRUCK CHASSIS; MEDIUM EQUIPMENT TRANSPORTER

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1980

TM-9-2320-273-34 - Page 502 of 801

TM 9-2320-273-34

(7)

Continue with procedures using the calculated nominal (gaging) distance and the plus or

minus PC variation.

e.

Assemble the Differential and Gear.

The gear should not be pressed or driven

on the case, as this wouId cause excessive

metal particles to lodge between the gear

and case, thus resulting in gear run-out.

Proper installation should, therefore,

incorporate preheating the gear to assure

correct interference fit and to eliminate

metal pickup.

(1) Heat the ring gear in oil to approximately 160°F–180°F (71.1°C-82.2°C) for about

ten minutes before assembly.

(2)

Install twelve bolts, washers, and nuts. Torque to 180-230 Ib-ft (244-31 2 N•m).

(3)

Pre-lubricate the differential case inner walls and all component parts with the recommended

axle lubricant.

(4)

position the thrust washer and side gear in the gear case half.

(5) Place the spider with pinions and thrust washers in position.

(6) InstalI the second side gear and thrust washer.

(7)

Position the other case half over the assembly, alining match marks of both halves. Draw

the assembly together with three equalIy spaced capscrews.

(8)

Install the remaining capscrews and torque to 85-115 Ib-ft (11 5-156 N•m).

(9) If new bearings are to be used, press squarely and firmly on the differential case halves with

a suitable sleeve.

f. Rolling Resistance of Differential Nest.

(1) Place the differential and ring gear assembly in a vise with soft metal jaws.

11-56

CAUTION