REASSEMBLY - TM-10-3930-644-14-P0314

TM 10-3930-644-14&P

same time. Whenever oil seal is removed, it

Ring Gear

should be replaced with a new seal.

6. To remove front bearing cup from carrier, tap out

1. When reinstalling ring gear, position two dowels

with brass drift.

in ring gear and align ring gear with dowel holes

7. inspect all bearings and pinion shaft for damage

in flange case.

and excessive wear. Replace where necessary.

2. Install special capscrews and draw ring gear in

place, tighten capscrews and lock with

lockwires.

NOTE

Pinion and ring gear may only be

Pinion Gear

replaced as a set.

Differential

1. Press front and rear bearing cups into

differential carrier.

Be sure they are firmly

1. Remove bearings with suitable bearing puller

seated.

where necessary.

2. Press front bearing cone on pinion shaft and

2. Remove lockplates and capscrews holding case

place in housing. Install rear bearing cone,

halves together. Note aligning marks on case

pinion flange and nut. Torque nut to 15 to 25

halves.

inch pounds. Spin gear to seat bearings.

3. Remove pain case. Spider gears and thrust

3. Place differential assembly in position in carrier

washers may then be removed.

housing. Do not install caps.

4. Check dimension between face of pinion gear

Ring Gear

and O. D. surface of differential case. The

proper dimension is .171" .002" for a pinion

1. Remove lockwire and special cap screws

etched . 000. If pinion face is etched . 004

holding ring gear to flanged case.

proper dimension would be .175", and the

2. Ring gear is doweled in place. Using a brass

difference between the feeler gauge reading and

drift, drive out dowels causing ring gear to

.175" would determine the amount of shims

separate from flange case.

needed to sec the pinion properly. Shim pack

3. Inspect all parts for wear or damage and replace

should be compressed while measuring with

where necessary.

micrometer.

5. Remove pinion shaft, remove front bearing cone

from shaft and install shim pack between cone

CAUTION

and pinion gear.

Pinion and ring gear may only be

6. Reassemble pinion shaft, this time installing

replaced as a set.

spacer, rear shims, oil seal and nut. Torque nut

D. REASSEMBLY

to 15 to 25 inch lbs.

7. Use feeler gauge to recheck dimension. Should

Differential

be .171" .002".

1. Place thrust washer in bottom of flanged case.

8. Install cotter pin in flange nut.

Install side gear spider, spider gears, spider

thrust washers and opposite side gear with

E. INSTALLATION

thrust washer.

To install the differential assembly In carrier, proceed as

2. Install plain case.

follows:

1. Place differential in carrier, engaging ring with

NOTE

pinion.

Make sure case match marks are

aligned. See Figure 14.

2. Install differential bearing cups and adjusting

3. Install lockplates and capscrews, and tighten.

nuts, and caps, but do no: tighten.

Bend lockplate tabs over capscrews to secure.

CAUTION

4. Install bearings, if removal was necessary

Make sure caps are reinstalled as

marked at time of disassembly.

3. Coat ring gear with Prussian Blue or white lead

to obtain tooth pastern.

3-144