Spicer Wheel Ends Service Manual, Steer & Drive Wheel Ends - Manual (Page 23)

21
LM
S Stee
r Assembly
LMS Steer Assembly
LMS Stamped Locking Nut System
Proper wheel bearing adjustment maximizes wheel bearing
and seal life. Proper adjustment can also extend brake lining
life by preventing lining contamination caused by seal leaks.
1. Inspect the spindle threads and spindle nut for cor -
rosion and clean thoroughly or replace as required.
2. Pre-Lubricate all bearings.
3. Install the inner bearing into the hub and install the
wheel seal.
4. If grease lubricant is used, fill the hub cavity with the
appropriate lubricant.
5. Install the hub on the spindle with care, to prevent
damage or distortion to the wheel seal.
Never mix grease and oil lubricants.
6. Install the outer bearing on the spindle.
7. Install the retaining washer and adjusting nut.
8. Torque the inner nut to 250 - 300 lbs. ft. while rotat-
ing the hub.
9. Install the stamped locking nut and cotter pin.
Never tighten the adjusting nut to align the cotter pin slot.
This can pre-load the bearings and cause a premature bear-
ing failure.
Attempts to measure wheel endplay of the LMS hub system
may result in false readings. If endplay measurements are
attempted, use a precision dial indicator. Apply a strong
push on the hub while rotating the hub back and forth. Work
the hub until the dial indicator shows no additional move -
ment. Then apply a strong pull while rotating the hub back
and forth. Work the hub until the dial indicator shows no
additional movement. Endplay measurements greater than
0.005" may indicate a need to verify the correct compo-
nents were used and the spindle nut was installed per the
specifications.
10. Bend cotter pin legs around the stamped locking nut.
11. Attach the hub cap.
12. If oil lubricant is used, fill the hub cap cavity with the
appropriate lube. Install oil fill plug and tighten to
specified torque.
CAUTION
D-flat retaining washer
Jam nut or Adjusting nut
Stamped locking nut
Cotter pin
CAUTION
WARNING
Bend cotter pin legs