Komatsu D61EX-24 Operation & Maintenance Manual page 222

OPERATION
METHOD FOR CHECKING BACKUP ALARM OPERATION STATUS
1.
Turn the starting switch to ON position (B).
2.
Set the parking brake lever to LOCK position (L).
3.
Set the joystick (steering, directional and gear shift lever)
in REVERSE position (R).
The alarm must sound immediately at this time.
The alarm keeps sounding until the joystick (steering, di-
rectional and gear shift lever) is set to NEUTRAL position
(N) or FORWARD position (F).
4.
After checking the alarm operation, return the joystick
(steering, directional and gear shift lever) to NEUTRAL po-
sition (N) immediately.
5.
Return the starting switch back to OFF position (A).
MACHINE OPERATIONS AND CONTROLS
3-171