INSTALLATION & OPERATION MANUAL
L500 Series
EMERGENCY STOP
INTAKE AIR HEATER
Emergency Stop Switch
• You can stop the engine by pushing this button.
After releasing the switch by twisting the button,
you can start the engine again. (Normally, the
button should be in the
‘out’ position.)
• When the switch is pressed or it doesn’t work
normally, the engine doesn’t crank.
We recommend that you check this switch first
if there is any cranking problem.
• You can use this switch to avoid unexpected
engine starting during maintenance.
• You can use this switch in any emergency
situation.
• When turning the start switch ON, the coolant
temperature sensor senses the engine coolant
temperature and the control unit (ECU) controls
the preheating time in accordance with the
sensed coolant temperature.
• When the engine is started, the control unit (ECU)
operates the air heater for a certain time. This
preheats the engine and helps to reduce white
smoke at start-up.
• If the indicator lamp blinks regardless of
condition, check the related circuit for a blown
fuse, fused relay etc. since this indicates a
problem in the preheating heater system.
Air Heater
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