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(4) Brake lock switch
The brake lock switch applies the brakes on the front and rear wheels independently of the brake pedal.
This is an "auxiliary braking device for use during crane operation" which can be used together with the parking
brake while setting the outriggers or during stationary crane-on-rubber operation.
Before you use the brake lock, the engine must be running and the parking brake engaged. Press the brake lock
switch (ON) to activate the brake lock. The buzzer will sound until the brake lock is fully engaged. Once the brake
lock process is complete, the brake lock indicator lamp will light and the buzzer will stop.
The engine must keep running while the brake lock is engaged.
To release the brake lock, press the switch again while the parking brake is engaged to turn it back to the "OFF"
position.
When the indicator lamp goes out, the brake lock has disengaged.
The brake lock must not be used as a substitute for the parking brake.
The brake lock can only be used while the engine is running and the parking brake is engaged.
(541A-0100-0E)
・
If air pressure inside the compressed air tank drops while the brake lock is engaged, the
warning buzzer sounds. Raise the engine revolutions to increase pressure in the compressed
air tank.
・
When the engine is switched off, air is not supplied to the compressed air tank. If the pressure
inside the compressed air tank falls for some reason or other, the brake lock may release itself.
・
Do not leave the machine unattended while the brake lock is engaged.
(541A-0101-1E)
If you release the parking brake while the brake lock is engaged, the brake lock indicator lamp
will flash.
Release the brake lock first and then proceed to release the parking brake.
(541A-0102-1E)
Содержание SR-300L
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