Spicer Steer and Drive Wheel Ends Service Manual - Manual (Page 24)

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LMS Steer Assembly
LMS Spindle Nut Assembly
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.
Four-Piece Locking Nut System
1. Inspect the spindle threads and spindle nuts for cor-
rosion and clean thoroughly or replace as required.
Note: Proper assembly and adjustment is not possible if the
spindle threads or adjusting nuts are corroded.
2. Pre-lubricate all bearings.
3. LMS spacer must be installed before the inner bear-
ing and 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
• The inner spindle nut onto the spindle
7. Torque the inner nut to 250 - 300 lbs. ft. while rotat-
ing the hub.
8. Install the locking spindle washer.
Note: If the dowel pin and washer are not aligned, remove
washer, turn it over and re-install. If required, loosen
the inner nut just enough for alignment.
Never tighten inner nut to align dowel pin hole. This can
pre-load the bearing and cause premature bearing failure.
9. Install:
• The retainer washer
• The outer spindle nut.
10. Tighten the outer nut to 250 ±50 lbs. ft.
(271-407 N•m).
11. Secure outer nut by bending the retainer washer
over one flat hex on the outer spindle nut.
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.
12. Attach hub cap.
13. If oil lubricant is used, fill the hub cavity with the
appropriate lubricant. Install oil fill plug and tighten
to specified torque.
Never mix grease and oil lubricants.
Note: For steer axles with Spicer in-axle speed sensors, see
AXSM0034 for service and adjustment.
Inner spindle nut
Outer spindle nut
Locking spindle washer
Steering knuckle spindle
Dowel pin
Retainer washer
CAUTION
CAUTION
WARNING
CAUTION