Komatsu Galeo BR380JG-1E0 Shop Manual page 217

10 Structure, function and maintenance standard
1) Automatic engine warm-up function
After the engine is started, if the engine coolant
q
temperature is low, the engine speed is raised
automatically to warm up the engine.
Operating condition (All of following conditions)
Coolant temperature: Below 30°C
Engine speed: Max. 1,200 rpm
Resetting condition (Any one of following conditions)
Coolant temperature: Min. 30°C
Auto
Automatic engine warm-up operation time: Min. 10 minutes
Fuel control dial:
Manual
Kept at 70% of full level or above for 3 sec. or longer
2) Overheat prevention function
This function reduces the pump load and
q
engine speed when coolant or hydraulic oil
temperature is too high to protect the engine
and hydraulic components from overheating.
This function starts when coolant temperature or hydraulic oil temperature reaches 100°C.
q
Operating condition
Coolant temperature:
Min. 100°C
or
Hydraulic oil temperature:
Min. 100°C
Operating condition
Coolant temperature:
Min. 102°C
or
Hydraulic oil temperature:
Min. 102°
Operating condition
Coolant temperature:
Min. 105°C
or
Hydraulic oil temperature:
Min. 105°C
BR380JG-1E0
Operation/Remedy
Working mode: each mode
Engine speed: Kept as is.
Reduce pump delivery.
Operation/Remedy
Working mode:
each mode
Engine speed: Kept as is.
Monitor alarm lamp: Lights up
Reduce pump delivery.
Operation/Remedy
Working mode: each mode
Engine speed: Low idle
Monitor alarm lamp: Lights up
Alarm buzzer: Sounds
Engine speed: 1,200 rpm
Engine speed: Any level
Resetting condition
Coolant temperature, hydraulic oil temperature:
Below 100°C
Under above condition, controller is set to condi-
tion before operation of function. (Automatic
reset)
Resetting condition
Coolant temperature, hydraulic oil temperature:
Below 102°C
Under above condition, controller is set to condi-
tion before operation of function. (Automatic
reset)
Resetting condition
Coolant temperature, hydraulic oil temperature:
Below 105°C
Fuel control dial: Return to low idle position once.
Under above condition, controller is set to condi-
tion before operation of function. (Manual reset)
SEN01355-00
Operated
Reset
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