ABNORMALITY DIAGNOSING DEVICE OF FIXED-SPEED TRAVELING UNIT

摘要

PURPOSE:To reduce the cost by attaining the common use of a display device and a command switch for an abnormality diagnosing device with a display device and a switch for a fixed-speed traveling unit. CONSTITUTION:When a set switch 21 is operated while a truck is driven, the driving speed of that time point is stored as a set driving speed. Hereafter a fixed-speed drive mode is set for drive of the truck. While an operating frequency detecting means detects a fact that the switch 21 is pushed plural times within a prescribed period of time. Then an abnormality diagnosis processing means is actuated to execute the diagnosis of each part of a fixed-speed driver. The results of these diagnoses are displayed at a display device (a power supply indicator) independently of a normal power supply display.