OM3023 10/00 Operation - Section 3 Operating Instructions Page 3-29 When the system switch is turned OFF, the central warning lamp and ARSC caution lamp go out and the buzzer stops. MODEL SELECTION, TIRE SELECTION, AND FAILURE CODE DISPLAY When the key switch is turned ON, the codes below are automatically displayed in the following order on the controller LED. NOTE: If the failure code is "9.3" or "9.4", it shows that there is a failure in the system switch, so even if the system switch is turned OFF, the central warning lamp and ARSC caution lamp will flash and the buzzer will sound. 1. LEDs all light up. 2. Model Code:78 3. Tire diameter Code: B.-Tire:
Large size (standard) Warning Pattern 2 When only the ARSC caution lamp flashes: 4. Initial failure code 5. Failure code that occurred immediately before the failure code in 4. The ARSC system continues to be actuated, but an abnormality has occurred in the system. Turn the system switch OFF to stop use of the ARSC. 6. Failure code that occurred immediately before the failure code in 5. Clearing The Failure Code When the system switch is turned OFF, the ARSC caution lamp will turn OFF. Turn the truck key switch to "ON" (the engine is not started) and disconnect connectors CR1 and CR2 under the assistant's seat.
In the case of warning patterns 1 and 2 above, turn the system switch OFF quickly, stop use of the ARSC and contact the maintenance department. When this is done, "-" is displayed on the controller LED. Failure Codes When the "-" changes from flashing and stays lighted up (3 seconds), the failure code has been cleared. The set travel speed display is also equipped with a self-diagnostic function, and a failure code is dis- played on the set travel speed display. NOTE: When using the ARSC for the first time, always clear the failure codes. After clearing the codes, connect connectors CR1 and CR2. E1 - Abnormality in CPU - Turn the key switch ON again or turn the system switch ON again.
E2 - Abnormality in memory - Turn key switch ON again or turn the system switch ON again. When System Is Normal The ARSC system is actuated when the system switch is ON. Before traveling downhill, check that the system switch is ON. A code is displayed on the controller LED under the passenger seat. On slippery road surfaces, the wheels may lock when the ARSC is actuated. In such cases, stop using the ARSC. 0.0 - When accelerator pedal is being depressed 0.0. - When accelerator pedal is not being depressed If any abnormality occurs in the system and it becomes impossible to carry out accurate con- trol, a warning is given, the system is turned OFF, and the ARSC is released.
If necessary, use the retarder control lever or foot brake to control the machine, move it to a safe place, then turn the system switch OFF. NOTE: If the above code is not displayed when the accelerator pedal is being depressed or not being depressed, it is necessary to adjust the accelerator link. If it is not properly adjusted, the ARSC system will not be able to judge correctly if the accelerator pedal is being depressed or not, so the ARSC may not work normally.