Spicer Convertible Tandem Axles - Manual (Page 50)

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Wheel End Seal
Remove and Overhaul Wheel End Seal
WARNING:

Never work under a vehicle supported by only a jack.
Always support vehicle with stands. Block the wheels and
make sure the vehicle will not roll before releasing the
brakes.
IMPORTANT:

Wheel end seals can be easily damaged during handling.
Leave the seal in its package until installation to

prevent damage or contamination.
1. Remove outer bearing and wheel.
2. Remove oil seal.
3. Remove inner bearing.
4. Remove old wear sleeve (2-piece design only) with a
ball peen hammer and discard.
CAUTION:

Do not cut through the old wear sleeve. Damage to the
housing may result.

5. Inspect spindle journal and hub bore for scratches or
burrs. Recondition with an emery cloth as required.
Note: Deep gouges can be repaired by filling gouge with hard-
ening gasket cement and smoothing with emery cloth.
6. Clean hub cavity and bearing bores before reassem-
bly. Be sure to remove contaminants from all
recesses and corners.
7. Clean bearings thoroughly with solvent and examine
for damage. Replace damaged or worn bearings.
IMPORTANT:

Always use the seal installation tool specified by the seal
manufacturer. Using an improper tool can distort or damage
the seal and cause premature seal failure.
Install Wheel End Seal
1. Before installation, lubricate the following with the
same lubricant used in the axle sump.
• Inner bearing
• Wheel seal (follow the directions provided by the
seal supplier)
2. Place seal on installation tool.
3. Drive seal with installation tool onto hub.
Adjust Wheel Bearing
WARNING:

Do not mix spindle nuts and lock washers from different
systems. Mixing spindle nuts and lock washers can cause
wheel separation.
Note: The lock washer for a four-piece tang/dowel-type wheel
nut system is thinner than the lock washer for a three-
piece tang-type wheel nut system and is not designed to
bear against the inner nut.
4. Inspect the spindle and nut threads for corrosion
and clean thoroughly or replace as required.
Note: Proper assembly and adjustment is not possible if the
spindle or nut threads are corroded.
5. Inspect the tang-type washer (if used). Replace the
washer if the tangs are broken, cracked, or damaged.
6. Install the hub and drum on the spindle with care to
prevent damage or distortion to the wheel seal.
CAUTION:

A wheel dolly is recommended during installation to make
sure that the wheel seal is not damaged by the weight of the
hub and drum. Never support the hub on the spindle with
just the inner bearing and seal. This can damage the seal
and cause premature failure.
7. Completely fill the hub cavity between the inner and
outer bearing races with the same lubricant used in
the axle sump.
8. Before installation, lubricate the outer bearing with
the same lubricant used in the axle sump.
WARNING
IMPORTANT
IMPORTANT
IMPORTANT
WARNING
CAUTION