Spicer Drive Axles Service Manual Single Axles 2-Speed & Double Reduction - Manual (Page 24)

Final Pinion Bearing Preload Test
(cont'd)
2. Measure Pinion Bearing Preload - Use a
spring scale to test the assembly rolling
torque. To use the spring scale, wrap soft
wire around the bearing cage, attach the
scale and pull. Preload is correct when
torque required to rotate the pinion bearing
cage is from 15 to 35 LBS.-IN. (1.7-4.0 N.m).
This specification is translated into spring
scale readings in the chart below.
3. Adjust Pinion Bearing Preload - If
necessary, adjust pinion bearing preload.
Disassemble the pinion bearing cage as
recommended in this manual and change
the pinion bearing spacer. A thicker spacer
will decrease preload. A thinner spacer will
increase preload.
IMPORTANT: Use the correctly sized
spacer. Do not use shim stock or grind
spacers. These practices can lead to loss of
bearing preload and gear or bearing failure.
Install Pinion Oil Seal and Yoke
1. With pinion bearing preload adjustment
complete, install oil seal. Use a press and
properly sized sleeve to prevent distortion
or contact with seal lips during installation
(see illustration).
2. Make sure yoke is clean and dry. Install
yoke and nut (or nut and washer on some
models). Tighten nut to correct torque (see
.
chart
NOTE: After tightening nut, recheck pinion
bearing rolling torque, then proceed with
pinion installation in carrier.
24
Section
3
ASSEMBLY / ADJUSTMENT
Drive Axle
Overhaul