Komatsu WA480-8, Operation & Maintenance Manual

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BRAKE PEDAL
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WARNING
• While traveling downhill, use the engine brake with the transmission cut-off function being shut off.
The brake pedals installed on right and left sides of the steering post provide the same function.
• Do not depress the brake pedal repeatedly more than necessity. Excessive use of the brake heats it
up, degrading its function and may result in serious personal injury or death.
• Do not put your foot on the brake pedal unnecessarily.
NOTICE
Frequent braking increases the axle oil temperature. As a result, the alarm buzzer may sound and the
warning lamp may light up for protection of the brake discs. Observe the following ways of operation to
prevent the increase of the axle oil temperature.
• Try to avoid the over travel speed and sudden braking. Before depressing the brake pedal, shift
down the gear speed manually with the gear speed switch.
• Try to apply the brake on and off rather than continuously.
• Try gradual acceleration and braking rather than sudden acceleration and braking .
• When traveling downhill, use a low gear speed so that the engine braking works well.
• During loading work on a level ground, use of the cut-off brake is recommended since it cuts off the
power train.
The brake pedal is used to apply the brakes.
LEFT AND RIGHT BRAKE PEDALS
These are used to operate the wheel brake.
Use them for the normal braking.
When the transmission cut-off switch is set to ON position, the transmission is put in NEUTRAL in the adjusted
position.
When the transmission cut-off switch is set to OFF position, the brake is operated but the transmission is not put
in NEUTRAL.
REMARK
When operating the work equipment while accelerating and decelerating the machine by using the brake and
accelerator, you should use the brake pedals after turning the transmission cut-off switch to ON position.In this
way, you can restrain the brake heating.
OPERATION EXPLANATION OF COMPONENTS
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