NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 3-4
CHAPTER 2 MAINTENANCE
3 REMOVAL AND INSTALLATION
AUGUST 31, 2008
3.1.4 Repair
Replace all worn or damaged parts. Replace hex nuts with rounded corners,
all lock washers, oil seals, and gaskets.
3.1.5 Reassembly of Wheel End
1. Install inner and outer wheel bearing cups into hub using an appropriate
driver. Apply light machine oil to inner bearing cone and install bearing
cone.
Installation of new oil seal.
2. Apply a thin coat of #51 sealer to O.D. of oil seal.
3. Using an appropriate driver install the seal until it bottoms in the hub bore.
NOTE: Be sure lip is towards the bearing cone.
4. Apply a light coat of grease or oil to seal lip and spindle seal journal.
5. If hub and drum were separated, assemble drum and hub using
capscrews and tighten to 85-115 ft-lbs torque.
6. Install hub and drum assembly onto axle spindle, being careful not to
damage oil seal.
7. Apply light machine oil to outer bearing cone and install bearing cone.
8. Install wheel bearing adjusting nut and tighten to obtain 5-8 in/lbs rolling
torque.
9. Install planetary ring gear (NOTE: Wheel bearing adjusting nut roll pin
must line up with hole in planetary ring gear).
If dierential pinion was removed, go to 3.1.8. If pinion was not removed,
perform steps below:
To minimize risk of serious eye injury always wear industrial
safety glasses when working with snap rings and spring loaded retainers as
they can be ejected with great force. Use extreme caution and keep your
body and face out of the way.
10. Install axle shaft. Place sun gear on shaft end and secure with snap ring.
11. Assemble planetary spider (pinion shafts, setscrews, pinion gears thrust
washers, and snap rings).
12. Install planetary spider assembly to hub using capscrews and washers.
Secure with 85 to 115 ft/lbs. Use RTV-732 sealant when reinstalling the
planetary spider assembly.
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