Operation and maintenance manual

Operating Controls
2-23
DX140R/DX140LCR
7. Charge Warning
This symbol indicates when the engine starter switch is
turned "ON", and should go "OFF" after the engine starts. If
it does not turn "OFF", shut the engine down immediately
and determine the cause of the problem.
8. Engine Oil Pressure Warning
This symbol indicates when the engine starter switch is
turned "ON", and should go "OFF" after the engine starts. For
example, if the engine oil pressure becomes too low, the light
will turn "ON" and a warning buzzer will sound. If this
happens, shut the engine down immediately and determine
the cause of the problem. If you continue to work when this
light is "ON", it will result in serious engine damage.
9. Engine Coolant Temperature Warning
If engine coolant overheats, this symbol appears on the
screen an alarm will sound, and 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 can cause engine to siege
because of heat surge.
NOTE: C
h
eck the engine coolant temperature gauge. If
the gauge pointer moves into the red zone, the
engine coolant temperature warning light will
turn "ON", a warning buzzer will sound, and the
engine speed will be automatically reduced.
Allow the engine to run at low idle speed until
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.
HAOA610L
Figure 43
HAOA620L
Figure 44
CAUTION
AVOID INJURY
If you continue to work when th
is light is "ON", it will
result in serious engine damage.
HAOD350L
Figure 45