Differential carrier overhaul – Spicer Tandem Drive Axle Dual Range & Double Planetary 34,000-45,000 lbs User Manual

Page 43

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Differential Carrier Overhaul

(Forward and Rear Axles)

Disassemble Differential Carrier

(with power divider removed)

NOTE:

If the gear set is to be

reused, check tooth contact pattern

and ring gear backlash before

beginning disassembly. Best

overhaul results are obtained when

used gearing is adjusted to

run in

established wear patterns. Omit

this step if the gear set is to be

replaced.

When reusing the

gear set, remove

the left-hand bearing cap, adjuster

and lock as a unit. This will help

return the gear set to its original

adjustment during reassembly.

1.

Mount the differential carrier in

a repair stand.

NOTE:

For easier disassembly,

loosen but do not remove pinion

self-locking nut. When forward

axle pinion is equipped with

slotted nut, remove roll pin with

a pin punch then loosen nut.

Rear Axle

Forward Axle

2. Dual Range Axles Only:

Remove shift fork seal and spring.

Remove expansion plugs, then

working at the lower (or small) plug

hole, drive out the shift fork shaft.

WARNING:

WHEN USING A

DRIFT, PUNCH OR SIMILAR

TOOL, WEAR SAFETY GLASSES.

3. Dual Range Axles Only:

Dis-

engage shift fork yoke from sliding

collar. Then remove clutch and

shift fork.

Planetary Double Reduction

Axles:

A sun gear is used in place

of sliding clutch gear. To remove

sun gear, remove cap screws and

the retainer which holds gear in

position, then remove sun gear.

4.

If reusing gear set, punch mark

bearing adjusters for reference

during assembly.

5.

On teeth-side of ring gear, cut

lockwire and remove bearing cap

screws. Remove cap, adjuster and

lock.

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