Komatsu Utility 69001, Operation & Maintenance Manual

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EXPLANATION OF COMPONENTS
OPERATION
3-12
METER GROUP 3
ENGINE COOLANT TEMPERATURE GAUGE
NOTICE
If the coolant temperature gauge often enters red range (C), check the radiator for clogging.
Gauge (1) indicates temperature of the engine coolant.
If the temperature is normal during operation, green range (B)
will light.
If red range (C) lights during operation, move the fuel control
dial to lower engine speed to approx. 3/4 of the full speed, and
run until the coolant temperature enters green range (B).
If red range (C) lights up during operation, and the engine cool-
ant temperature caution lamp flashes and the alarm buzzer
sounds, stop the machine, run the engine at low idle, and wait
for the coolant temperature to return to green range (B).
(A): White range
(B): Green range
(C): Red range
(1) Engine coolant temperature gauge (5) Engine pre-heating pilot lamp
(2) Power train oil temperature gauge (6) Display panel A
(3) Hydraulic oil temperature gauge (Speed range display, Engine speed)
(4) Fuel leve gauge (7) Display panel B (multi-information)