Spicer Single Drive Axles Service Manual: S140 Series User Manual

Page 20

Drive Pinion

7. Measure torque to rotate the pinion with an inch-

pound torque wrench. Torque measurements should

be taken every fourth (4th) revolution and should

read between 34-42 in.lbs. of bearing preload.

Note: If bearing preload does not fall within allowed limits,

preload can be increased by using a thinner spacer and

decreased by using a thicker spacer.

Always measure each spacer before assembly to

ensure correct thickness.

8. Repeat process until torque to rotate is between 34-

42 in. lbs. After proper preload is achieved, remove

yoke and install new seal with proper service tool.

Do not use any silicone or permatex-type bore sealant with
this seal.

9. Remove the new seal from its package and install

with the proper driver:

R-Pinion-Use drive #126917 only

Due to the resiliency of the plastic driver, hammer rebound
may occur when the seal is seated. Keep clear of the ham-
mer rebound path!

10. Handle the seal by its outside diameter avoiding any

contact with the seal lips. During installation, use the

proper driver to make sure that the seal is mounted

properly.

11. Use a rubber mallet to drive the seal tool in until the

flange bottoms on the housing cover bore face. The

flange will locate the seal at the proper depth.

12. Install end yoke.

Note: Spicer recommends that new torque prevailing

nuts be used.

13. Use torque multiplier and torque pinion nut to 710-

1040 lbs. ft. (848-1410 N•m).

CAUTION

WARNING

1 - Seal Driver
2 - Oil Seal
3 - Pinion Cage