Komatsu WA600-8 Operation & Maintenance Manual page 281

OPERATION
REMARK
• If the gear speed switch is operated slowly or is stop-
ped between gear positions, the centralized warning
lamp may light up and the alarm buzzer may sound,
but this is not a failure.
Operate the gear speed switch so that gear shifting is
completed in 2 seconds.
• When the machine is traveling at high speed, if the
gear speed switch is operated to a slower gear speed
such as from 4th to 3rd and from 4th to 2nd while de-
pressing the accelerator pedal, the shift down is not
enabled to prevent overrun of the engine.
The centralized warning lamp lights up, alarm buzzer
sounds, the action level "L02" is displayed, and the
overrun caution lamp lights up.
If the alarm buzzer sounds, release the accelerator
pedal immediately, depress the brake pedal to reduce
the speed and then shift the gear.
• Immediately after operating the directional selection or gear shifting, even if directional lever or direc-
tional selector switch or the gear speed switch or kickdown switch is operated, the directional selection
or gear shifting is not performed in order to protect the transmission, however, this is not a trouble.
3.
When the machine is accelerated by depressing accelera-
tor pedal (4), the transmission is shifted up automatically.
4.
When the machine is decelerated by releasing accelerator
pedal (4), the transmission is shifted down automatically in
accordance with the travel speed.
MACHINE OPERATIONS AND CONTROLS
3-213