COMPONENT OPERATION / Axle SERVICE BRAKE The brake is a wet-type spring set hydraulic released multi-disc brake and is assembled in the axle case. The disc brake is installed to the front wheels of the machine.
• When bake is applied Oil pressure from the brake valve acts on the back of brake piston (5) and moves brake piston (5). Brake disc (2) and brake plate (3) are fitted tightly via end plate (4). The inner surface of brake disc (2) is fitted to differential gear case B(8). The outer surface of brake plate (3) is fixed to axle case (1). Therefore, the rotation of brake disc (2) stops and differential gear case B(8) stops. In addition, brake piston (5) pushes return spring (6) via end plate (4). When piston (11) is pushed further, clutch disc plate (9) and clutch disc (10) are fitted tightly. The inner surface of clutch disc (10) is fitted to shaft (7). The outer surface of clutch disc plate (9) is fixed to differential gear case B(8).
• When brake is released When oil pressure from the brake valve is decreased, brake piston (5) is returned by return spring (6). Brake disc (2) is freed and the machine can travel.
T3-7-8
