BLADE OPERATION SWITCH STRUCTURE FOR BLADE WORK MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a blade operation switch structure for a blade work machine capable of simply conducting the tilt rotating operation and angle rotating operation of a blade and capable of smoothly conducting the blade work for preventing troubles caused by the switching action of the blade. SOLUTION: This blade work machine supports a blade 1 on a lift arm 3 liftably and pivotally supported on a machine base 2 tilt-rotatably via a tilt shaft 50 and a tilt cylinder 1S and angle-rotatably via an angle shaft 51 and angle cylinders 3L, 3R. The switching operation between the tilt rotating operation and angle rotating operation of the blade 1 is made by an operation switch structure 6 provided on a maneuver section 2a. The operation switch structure 6 of the blade work machine is constituted of a selector switch 60 capable of selectively switching the tilt rotating operation and the angle rotating operation and having a neutral position disabling both operations and a rotating angle adjuster 61 setting the rotation angles of the tilt rotating operation and the angle rotating operation.