NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M100 Tow Tractor Manual No. 46052
PAGE 4
CHAPTER 2 MAINTENANCE
3 REMOVAL AND INSTALLATION
AUGUST 31, 2008
2. Remove parts needing replacement with a suitable puller. Avoid use of
hammers and drifts as they can easily mutilate or distort axle parts.
3. Inspect gears for wear or damage. Gears that are pitted, galled, worn, or
broken through the case hardening should be replaced.
NOTE: When necessary to replace either the bevel pinion or gear, replace the
gears as a set. These gears are matched to assure quietness and satisfactory
service.
a.
wear surfaces.
NOTE: Replace thrust washers in sets because using old and new
washers together can result in premature failure.
b.
c.
5. Check bevel pinion end for indications of brinelling caused by worn
splines. Replace parts if pinion or shaft splines are worn, permitting the
pinion to move on the shaft.
6. Inspect axle shafts for indications of torsional fractures and runout. Total
runout should not exceed .005”.
3.1.6 Repair
Replace all worn or damaged parts. Replace hex nuts with rounded corners,
all lock washers, oil seals, and gaskets.
3.1.7 Reassembly of Wheel End
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.
1. Apply a thin coat of #51 sealer to O.D. of oil seal.
2. Using an appropriate driver install the seal until it bottoms in the hub bore.
NOTE: Be sure lip is towards the bearing cone.
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