Standard hub and spindle nut - assembly, Four-piece locking system – Spicer Wheel Ends Service Manual, Steer & Drive Wheel Ends User Manual

Page 42

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Standard Steer Assembly

Standard Hub and 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 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. 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

The inner spindle nut onto the spindle

7. Seat the bearings by tightening the inner nut to 200

lbs. ft. (271 N•m) while rotating the hub assembly.

8. Loosen the inner nut one full turn.

9. Re-tighten the inner nut to 50 lbs. ft. (68 N•m) while

rotating the hub.

10. Again loosen the inner nut one third turn (to one half

turn maximum - three to five hub studs for a ten stud
pattern.)

11. 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 caus e premature bearing failure.

12. Install:

The retainer washer

The outer spindle nut

13. Tighten the outer nut to 200 ± 50 lbs. ft. (271 - 407

N•m).

14. Secure outer nut by bending the retainer washer

over one flat hex on the outer spindle nut.

15. Verify that the wheel endplay is between 0.001" and

0.005" (0.025 and 0.127 mm) using a dial indicator.
If reading does not fall within this range, repeat this
procedure. See “Verify Wheel Endplay” section.

16. Attach hub cap.

17. If oil lubrication 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

CAUTION

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