Rear Axle Light Bar - Komatsu 730E Operation & Maintenance Manual

OM3241
Operator Cab and Controls

REAR AXLE LIGHT BAR

1. Backup Lights
2. Retard Lights
NOTE: The brake light is functional at all times
regardless of key switch position. All other lights (and
the backup alarm) are only functional with the key
switch in the RUN position.
Backup Lights
Backup lights (1, Figure 32-1) illuminate when the
operator moves the directional control lever to
REVERSE. The lights can also be activated by using
the backup light switch in the cab. Using the switch
turns the lights on regardless of directional control
lever position.
Retard Lights
Retard lights (2) will illuminate when the operator
uses the retard function to slow the truck. The amber
light signals to traffic that the truck is slowing.
FIGURE 32-1. REAR AXLE LIGHT BAR
Brake Light
Brake light (3) will illuminate when the operator
depresses the brake pedal. The red light signals to
traffic that the truck is slowing.
Backup Alarm
Backup alarm (4) will sound when the operator
moves the directional control lever to REVERSE.
The alarm can also be turned on by using the backup
light switch. Using the switch turns the alarm on
regardless of directional control lever position.
Operation - Section 32
3. Brake Lights
4. Backup Alarm
Page 32-25