NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M100 Tow Tractor Manual No. 46052
PAGE 11
CHAPTER 2 MAINTENANCE
1 SERVICING
APRIL 15, 2012
Inspect Cooling Fan
See the Cummins “Operation and Maintenance Manual” included with this manual.
1.5 EVERY 100 OPERATING HOURS - GAS MODELS
1.5.1 Change Engine Oil and Oil Filter
1. Run engine until it is warm.
2. Stop engine, remove sump drain plug and O-ring. Drain lubricating oil from
sump. Do not damage O-ring. Reinstall drain plug and O-ring. Tighten plug
to 25 ft-lb.
3.
4.
5.
6. Add clean engine lubricating oil to new canister. Allow oil enough time to
7. Lubricate top of canister seal with clean engine lubricating oil.
8.
1/2 more turn by hand only. Do not use strap wrench.
9. Fill crankcase with new, clean lubricating oil. Allow oil to drain down
into engine for several minutes. Check oil level on dipstick. Add oil if
necessary. See Section 1.3, Fluids And Capacities.
10. Start engine, check oil pressure gauges to make sure oil pressure is
level on dipstick. Add oil if necessary.
1.5.2 Clean Crankcase Inlet Air Cleaner
2. Wash in kerosene.
3. Dry and re-oil with SAE 30 Engine Oil (more frequently in dusty conditions).
1.6 EVERY 250 OPERATING HOURS OR 3 MONTHS
1.6.1 Transmission Oil
1. Bring transmission to normal operating temperature (about 180ºF). Five
minutes of driving, including frequent stops and starts, will usually produce
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