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 553 of 801

TM 9-2320-273-34

If bearing caps do not position properly,

adjusting nuts might be cross-threaded.

Remove caps and reposition the adjusting

nuts. Forcing the caps into position will

result in irreparable damage to the carrier

housing or bearing caps.

(4)

Install the bearing caps in the correct location as marked and tap lightly into position.

(5)

Install the carrier leg capscrews and washers and torque to 290-350 Ib-ft (393-475 N·m).

Install adjusting nut, dowel, and cotter keys after final adjustments are made.

h. Adjust the Differential Bearing Preload.

(1)

Using a dial indicator at the backface of the gear, loosen the bearing adjusting nut on

the

side opposite gear on/y

sufficient to notice end play on the indicator.

(2)

Tighten the same adjusting nut only sufficient to obtain 0.000 end play.

(3)

Check the gear for run-out.

If run-out exceeds 0.008 in.

(0.203

mm), remove the differen-

tial and check for cause.

(4) Starting with 0.000 end play, tighten each adjusting nut one notch. This will properly

preload the differential bearing.

i. Check the Amboid Gear Backlash.

(1)

If the drive gear is being replaced, the established backlash recorded before disassembly will

be used. For new gears, the new backlash should be initially set at 0.015 in. (0.381 mm).

/2)

Adjust backlash by moving the gear only. This is done by backing off one adjusting ring and

advancing the opposite ring the same amount.

Use a dial indicator mounted on the carrier-to-housing flange

with the indicator pointer against one ring gear tooth.

j. Check the Tooth Contact.

(1)

Refer to paragraph 11-9f for checking procedure.

11-58

CAUTIO N