Komatsu PC18MR-3, Operation & Maintenance Manual

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INSTRUMENTS AND CONTROLS
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3.2.1.3 WARNING LIGHTS
1. Engine preheating warning light
This warning light comes on when the ignition key is turned to the
preheating position (HEAT) to start the engine at low tempera-
tures. It turns off automatically after about 18 seconds, once pre-
heat is completed and the sound alarm goes on.
2. Travel speed increase warning light
This warning light comes on when the travel speed selection
switch is in high speed position (see "3.2.2 pos: 4. Travel speed
selection switch"). When the selector switch is in normal position
(low speed), the warning light on the control box is off.
NOTE
q
When the machine travels at high speed on soft ground or up a
slope and the load increases, the low speed is automatically se-
lected, but the travel speed increase warning light remains on.
RKA23470
(1) Engine preheating warning light (2) Travel speed increase warning light
RWA07160