NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M140 Tow Tractor Manual No. 46054
PAGE 2-7
CHAPTER 1 GENERAL INFORMATION AND OPERATING INSTRUCTIONS
MAY 31, 2015
2 OPERATION
2.3.11 Engine Protection System
1. The engine is equipped with an engine protection system. The system
monitors critical engine temperatures and pressures and will log diagnostic
faults when an over or under normal operation condition occurs.
2. If an out-of-range condition exists, the operator will be alerted by the
in-cab yellow WARNING lamp. See gure 1. It is not necessary to stop
operation if the warning comes on, but it is a warning to change operation,
such as reducing the load to correct the situation or to get the tractor to
the shop for maintenance if the cause of the warning is not determinable.
Check the instrument panel gauges for a possible indication of the
problem.
3. If the fault continues to worsen, the warning lamp will begin to blink. If
the fault becomes critical, the red STOP lamp is illuminated, see gure 1
and the driver must pull to the side of the work area when it is safe to do
so, and shut down to reduce the possibility of engine damage . If not shut
down by the driver, the engine will automatically shut down in 30 seconds.
NOTE: Engine power and speed will be gradually reduced depending on
the level of severity of the observed condition.
4. Engine Protection Shutdown Override: In the event of an engine protection
shutdown, the driver can over ride it by turning the ignition off, shifting to
neutral and applying the parking brake. Then the engine can be restarted
for an additional 30 seconds of operation.
5. Electronic Control Module (ECM) features and engine protection devices
are also described in Section 1 of the Cummins manual.
6. If you encounter engine operation problems or malfunctions, see Section
TS-Trouble Shooting of that manual.
FIGURE 1. ENGINE INDICATOR LIGHTS, CUMMINS
(NOT USED FOR EFF. H)
YELLOW
WARNING
RED STOP
GLOW
PLUG
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