DEVICE FOR CONTROLLING HEIGHT OF BLADE OF TRACKED VEHICLE.

摘要

A device for improving the workability and drivability of a tracked vehicle whose blade height is automatically controlled, in which, when changeover of a speed step from reverse to forward is detected by a transmission lever position detector (3), a controller (15) controls to raise or lower the blade (8) to a target value which is a height of the blade (8) initially set by an initial-height setter (4). With a blade raising operation lever (1) operated, the blade (8) is controlled to rise or lower in proportion to the amount of movement of said lever (1) operated. After the completion of manual operation using the operation lever (1), the final height of the blade during manual operation is detected by a blade-height detector (14) and the blade is controlled to rise or lower to a target value which is said detected value of height.