OP001013Operating Controls
2-20
12. Engine Coolant Temperature Warning
Light
If engine coolant overheats, this light will turn "ON", the
engine speed will be automatically reduced, until coolant
temperature drops. Do not turn engine "OFF" because this
will cause coolant temperature to rise and may cause
engine to siege due to heat surge.
NOTE: Check the engine coolant temperature gauge. If
the gauge pointer moves into the red zone, the
engine coolant temperature warning light will
turn "ON", the engine speed will be
automatically reduced. Allow the engine to run
at low idle speed until the temperature gauge
registers in the blue zone again. When the blue
zone is reached, allow the engine to idle for an
additional three - five minutes before shutting
down the engine. If not allowed to idle, heat
surge may develop which will damage the
engine. Allowing the engine to idle will dissipate
heat. Check the coolant level, look for a loose
fan belt, inspect for debris around radiator, and
so on.
When the temperature reaches the normal
range, the engine speed will automatically
recover.
13. Reverse Fan Indicator Light
This indicator light will turn "ON", when the cooling fan
rotates in the reverse direction.
Figure 37
HAOD350L
FG004185
Figure 38
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