NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 3-3
CHAPTER 2 MAINTENANCE
3 REMOVAL AND INSTALLATION
AUGUST 31, 2008
3.1.3 Cleaning and Inspection
Thorough cleaning and visual inspection of parts for indications of wear or
stress is necessary to eliminate costly and avoidable axle failures.
Clean parts in a suitable solvent such as P-D-680 or equivalent. Parts
should be thoroughly dried immediately after cleaning. Use soft, absorbent
contaminated oil.
corrosion and then reassemble. If parts are to be stored for any length of time,
they should be treated with a good rust preventive and wrapped in special
paper or other material designed to prevent corrosion.
NOTE: Do not clean bearings in gasoline. Never place ground and polished
surfaces in a hot cleaning solution tank.
1. Inspect all bearing cups and cones, including those not removed from
parts of the carrier. Replace if pitted or damaged in any way.
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”.
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