NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-33
CHAPTER 2 MAINTENANCE
AUGUST 31, 2008
1 SERVICING
Fluid and Filter Change
Figure 11
At each oil change, examine the oil that is drained for evidence of dirt, metal
particles, or engine coolant contamination. If there is evidence of
contamination, tag out machine and inform your supervisor.
NOTICE! If excessive metal contamination occurred, replace the oil cooler
and bearings in the transmission. If coolant contamination is evident,
disassemble, clean, and inspect or serious damage may occur.
1. To assist draining, operate transmission to warm it up to operating
temperature.
2. Park the tractor on a level surface, shift to neutral, apply parking brake, and
chock wheels.
Always set the parking brake when parking the machine. The
transmission does not have an internal parking lock and failure to apply the
parking brake could allow unexpected movement resulting in crushing injury
or death.
4. Remove 21 washer-head screws retaining the oil pan to the transmission
housing. Discard the pan gasket and clean the pan with mineral spirits.
for this and all remaining steps).
6. Clean or replace the governor oil screen by removing the governor feed
tube. This tube and the remaining two tubes are held in place by the control
valve body.
Tighten the screw to 10-15 lb ft.
oil pan lip. Do not seal gasket with any substance other than transmission
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