NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 1-41
CHAPTER 2 MAINTENANCE
AUGUST 31, 2008
1 SERVICING
1.8 EVERY 2500 OPERATING HOURS OR 2 YEARS
1.8.1 Adjust Valves
Refer to Engine Manufacturer’s manual supplied with this manual.
1.8.2 Inspect Injectors - Diesels
Refer this service to a specially trained technician.
1.8.3 Change Coolant
To prevent internal corrosion in the radiator, oil cooler, and engine, the cooling
Do not open radiator cap while engine is hot and system is
under pressure. Escaping hot coolant can scald and cause serious skin burn.
1.
engine drain plugs.
2. Drain radiator by opening tap at bottom of radiator.
3. Remove the drain plug from side of cylinder block to drain engine. Make
sure drain hole is not plugged.
4. Dispose of old coolant in an approved manner.
5. Flush system with clean water.
6. Install drain plugs and close radiator tap.
7. Remove one of the plugs from the thermostat housing to allow air to
escape the engine. Fill radiator with clean engine coolant. Fill coolant
reservoir to the recommended level. See 1.3, Fluids And Capacities.
8. Start engine. When engine reaches normal operating temperature, check
1.9 CHANGING AXLE OIL
The rear axle has three drain plugs: one on the outside of each wheel end and one
1. Remove rear wheels according to 4.2.1.
2. Using a rag and wire brush, thoroughly clean dirt and rust from around the three
3. Remove, clean, and reinstall drive axle breather. Replace if corroded.
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