Komatsu GALEO HM350-2 Operation & Maintenance Manual page 84

OPERATION
PARKING BRAKE SWITCH
When parking or leaving the machine, always apply the parking brake.
This switch (8) is used to actuate and release the parking brake
valve.
(a): Parking
The parking brake is applied.
(b): Travel
The parking brake is released.
When the switch is set to the PARKING position, the parking brake
pilot lamp lights up.
When the switch is set to the PARKING position, if the shift lever
is at any position other than N, the central warning lamp will flash
and the alarm buzzer will sound.
If the pressure saved in the accumulator drops and goes below 5.4 MPa {55 kg/cm
brake are automatically applied. For details of the method of releasing the brake, see "WHEN PARKING BRAKE
HAS BEEN ACTUATED IN EMERGENCY (PAGE 3-130)".
When working at night, the symbol inside the switch lights up regardless of the selected position of the switch.
REMARK
If the engine is stopped with the parking brake switch at TRAVEL, the parking brake will be applied automatically
even though the parking brake switch is at TRAVEL. When starting the engine again, operate the parking brake
switch to PARKING, and then move it back to TRAVEL to cancel the parking brake.
NOTICE
During loading operations, do not apply the parking brake. Apply the retarder brake.
WARNING
EXPLANATION OF COMPONENTS
2
, 781 PSI}, the brake and parking
3 - 35