TM-9-2320-283-34-2

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, MQ15A1

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

DECEMBER 1983

TM-9-2320-283-34-2 - Page 170 of 570

TM 9-2320-283-34-2

REAR TANDEM AXLES.

3-76. REAR-REAR AXLE CARRIER REPAIR (Continued).

LOCATION/ITEM

ACTION

REMARKS

NOTE

Ring gear backlash controls the ring

gear position.

This adjustment moves

the contact pattern along the face

width of the ring gear tooth.

Pinion

position is determined by the size of

the pinion bearing cage shim pack. It

controls contacts on the tooth depth

of the ring gear tooth.

When making adjustments, first adjust

the drive pinion,

then the backlash.

Continue this method, until the pat-

tern is correct.

Check ring gear

backlash after each

shim change and adjust if necessary to

maintain the 0.006 to 0.016 inch for

new ring and pinion gear.

58. Pinion (32).

Refer to illustrations and

adjust item (32) position as

Refer to steps 18 and

45 for shim removal and

follows:

installation.

a. If item (33) tooth

pattern is too close to

the top land, move item

(32) toward item (33) by

removing shims.

b. If item (.33) tooth

pattern is too close to

the root of the tooth,

move pinion away from

item (33) by adding

shims.

3-726