34. ARSC (AUTOMATIC RETARD SPEED CONTROL) 1. SYSTEM SWITCH This is used to turn the ARSC system ON/OFF. 2. ARSC SET LEVER This lever is used in the following cases: When setting the travel speed When making fine adjustments to the set speed (tap up/tap down) When canceling the speed setting When setting the travel speed, check the display on the set travel speed display. 3. SET SPEED DISPLAY This displays the speed (km/h) that has been set. The display goes out when the system switch is OFF. It displays 0 when the set value is canceled. When the machine starting switch is ON or the system switch is ON, the display shows —, and then shows 0.
There is also an MPH display on the set travel speed display. 4. ARSC CAUTION LAMP This flashes if there is any abnormality in the ARSC system when the system switch is ON. It lights up for 3 seconds when the machine starting switch is turned ON to check the bulb. 5. CENTRAL WARNING LAMP This lights up together with the ARSC caution lamp if there is a serious abnormality in the ARSC system when the system switch is ON. 6. RETARDER CONTROL LEVER Even when the ARSC is in operation, the retarder can be operated with this lever. 7. ACCELERATOR PEDAL The ARSC is actuated only when the accelerator pedal is not being pressed. 8.
BRAKE PEDAL This pedal operates the wheel brake even when the ARSC is being operated. 9. READY LAMP When this lamp is lighted up, it shows that the travel speed is set and that operation of the ARSC is possible. When it is out, the ARSC is not actuated. It lights up for 3 seconds when the machine starting switch is turned ON to check the bulb. 10. REAR BRAKE PILOT LAMP This lamp lights up when the retarder or brake pedal are operated, even when the ARSC is being operated. 5-43