Spicer Single Drive Axles Service Manual: S170, S190, S590 User Manual

Page 29

Wheel Differential

Install Wheel Differential Assembly - Forward Carrier Assembly

Set Backlash and Bearing Preload

Note: To install the wheel differential assembly, properly setup

the gear pattern and set the differential bearing preload.
This will require the use of the following Spicer tools or
equivalent. These tools will allow you to align the bear-
ing adjuster assembly to the carrier. This tool (part num -
ber 513061) will also gage the adjustment for the
differential bearing preload and assist in setting the
backlash. Below you will find detailed instructions
explaining each procedure.

1. The bearing adjustment tool is made up of a

threaded rod, two nuts, two washers and two adjust-
ment plates. Fit one ad justment plate to the plain half
threaded cup. Fit the other adjustment plate to the
flange half cup. The adjustment rings will fit into
slots of the threaded bearing cups stamped adjust -
ment ring.

2. Connect the adjuster plates using the threaded rod,

washers and nuts. Tighten the nuts on the rod to
hold the threaded cups in place. Carefully lower the
wheel differential and ring gear assembly into the
carrier.

Note: There are two ways to make sure that the threaded cups

are seated properly. If there is a misalignment, reinstall
the differential assembly at a slightly different angle.

3. Make sure there is no gap between the carrier

threads and the cup threads.

1 - Threaded bearing cup
2 - Adjustment plate

1 - No gap