FRONT DIFFERENTIAL CARRIER ASSEMBLY REPLACEMENT/REPAIR/ADJUSTMENT - continued

TM 10-3930-673-34

(2)

Check runout of ring gear (13).

(a)

Attach dial indicator on mounting

flange of differential carrier (3).

Adjust dial indicator so that plunger

is against back surface of ring gear.

(b)

Adjust dial of indicator to zero.

(c)

Rotate differential assembly (3) and

ring gear (13) and read dial

indicator. If runout of ring gear

exceeds 0.008 in. (0.2032 mm),

remove differential assembly and

ring gear, Disassembly Step (1),

and inspect differential assembly for

problem. Replace defective parts

and reinstall differential assembly

and ring gear into differential

carrier, Assembly Step (11). Repeat

preload adjustment of differential

bearings, Adjustment Step (1).

(3)

Adjust backlash of ring gear (13).

TR00271

(a)

Attach a dial indicator to the

mounting flange on differential carrier (3)

(b)

Adjust dial indicator so that plunger is against the tooth surface on ring gear (13).

(c)

Adjust dial of indicator to zero.

(d)

Hold bevel pinion in position.

(e)

Read dial indicator while rotating ring gear (13) a small amount in both directions.

(f)

Adjust backlash of old gear set to setting measured before carrier was disassembled (0.008 -

0.018 in. [0.203 - 0.457 mm]).

(g)

If new gear set is installed, adjust backlash to 0.012 in. (0.305 mm).

NOTE

When adjusting backlash, adjust only the ring gear; do not adjust the bevel pinion.

(h)

Increase backlash by loosening bearing adjusting ring (16) opposite teeth of ring gear (13),

and tightening bearing adjusting ring on ring gear side of differential assembly. Make

adjustments one notch at a time until backlash is within specifications.

(i)

Decrease backlash by tightening bearing adjusting ring (16) opposite teeth of ring gear (13),

and loosening bearing adjusting ring on ring gear side of differential assembly. Make

adjustments one notch at a time until backlash is within specifications.

8-27