Komatsu WA380-6 Operation & Maintenance Manual page 101

EXPLANATION OF COMPONENTS
HAZARD LAMP SWITCH
Use the hazard lamp only in emergencies. Using the hazard lamp when traveling may cause confusion for other machine
operators.
This switch (8) is used in emergencies, such as when the machine
breaks down and has to be parked on the road.
Position (A): Turn signal lamps, turn signal pilot lamp flash, and
pilot lamp (C) lights up at same time.
Position (B): Lamps are OFF.
PARKING BRAKE SWITCH
Always apply the parking brake when leaving the machine or when parking it.
Even if the parking brake switch is turned ON, there is danger until the parking brake pilot lamp lights up, so keep the brake pedal
depressed.
NOTICE
Never use the parking brake switch to apply the brakes when traveling, except in an emergency. The parking brake may be
damaged and this may lead to a serious accident. Apply the parking brake only after the machine has stopped.
If the parking brake has been used as an emergency brake when traveling at high speed, contact your Komatsu distributor to
have the parking brake checked for any abnormality.
This switch (9) operates the parking brake.
Position (A): ON
The parking brake is applied, and the parking brake
pilot lamp lights up.
Position (B): OFF
The parking brake is released.
REMARK
When the parking brake is applied, the machine will not move off even if the directional lever is operated.
If the directional lever is placed at the F or R position with the parking brake still applied, the central warning lamp
will light up and the buzzer will sound.
Before starting the engine, turn the parking brake switch ON.
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WARNING
WARNING
OPERATION