NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 2-2
CHAPTER 1 GENERAL INFORMATION AND OPERATING INSTRUCTIONS
2 OPERATION
AUGUST 31, 2008
2.2.2 Instruments
1. The engine hour meter registers how many hours the engine has
operated. It is sealed and can record 99999.9 hours before it returns to
zero.
2. The fuel gauge shows the amount of fuel in the fuel tank. A sending unit
in the tank is connected to the gauge. The gauge is marked E and F to
indicate the relative quantity of fuel in the tank.
3. The oil pressure gauge indicates oil pressure only (not oil level). It is
marked 6 to 100 with intermediate index marks.
4. The voltmeter registers voltage across the battery terminals. The needle
should be above 12V. Stop the tractor and inspect the battery, cables, and
alternator connections is below 12V.
5. The coolant temperature gauge shows the coolant temperature in the
engine’s water jacket. The gauge needle should rise when the engine is
started, then level out at between 150 and 200 as the engine warms up.
6. The transmission oil temperature gauge shows the temperature of the
transmission uid. Normal operating temperature is in the 120F to 280F
range.
7. Fuses for all electrical circuits (except the optional cab) are located under
the instrument panel in fuse blocks.
2.3 OPERATING THE ENGINE
2.3.1 Starting the Engine
Several things affect engine start, such as battery power, starter motor
performance, and oil viscosity.
1. Perform the daily service checks as detailed in Chapter 2.
2. Apply the parking brake.
3. Place the gear shift lever in N (neutral) position.
4. Turn ignition switch to IGN (on). For Cummins 2 engine indicator lights will
cycle and then the glow plug indicator will light. See gure 1. Wait for the
glow plug indicator to go off. Other engine models may have a separate
ignition switch position for PREHEAT. Turn the switch to this position until
the glow plug indicator goes off. Then crank the engine (START).
5. Crank starter for no more than 15 seconds.