2-6 12. Battery level computation The controller monitors decrease in the battery voltage, computes the remaining capacity, and displays it as the current battery level. 13. Diagnostic function The diagnostic function can detect abnormalities in the traveling controller and the material handling control- ler, operation mechanisms such as the accelerator, and sensors. When an abnormality is detected, the di- agnostic function outputs a diagnostic code and takes the appropriate measure. 14. Analyzer function The multiple display has an analyzer mode that can be used for troubleshooting or for testing operation mechanisms and motor drivers. 15.
Over-discharge warning function When the remaining capacity level reaches a specified level, the multiple display shows a warning and the load handling operation is restricted. This will protect the battery and will urge the operator to charge the battery. It is possible to release this restriction temporarily by turning the key switch off at once before resetting as emergency measures. 16. Return-to-neutral function If the operator turns the key switch ON with the direction lever at the forward or reverse position or with the accelerator pedal depressed, the vehicle will not start.
The operator has to return the direction lever and ac- celerator pedal to their neutral positions once in order to allow it to restart. 17. Parking brake ON warning The buzzer sounds when the operator attempt to start the truck with the parking brake switch turned ON. 18. Parking brake OFF warning The buzzer sounds to warn the operator when moving from the drive seat without the parking brake switch turned on. 19. Mini-lever control Based on operation signals of the mini-lever, the main controller controls material handling operation by con- trolling solenoid valves and the material handling controller.