OPERATIONAL PERFORMANCE TEST / Wheel Loader Test SERVICE BRAKE WEAR AMOUNT Summary: The extent of wear of the brake disc at the service brake of the axle is judged by the wear gauge. Preparation: 1. Clean the inspection plug (1) of the axle, and loosen it. 2. In the case of the rear axle, the inspection plug (1) is located below the center line of the differential, so loosen the inspection plug (1) after draining the axle oil. Measurement: 1. Operate the service brake by depression the brake pedal. 2. Insert the wear gauge (2) into the inspection port until it contacts the brake disc (6) between the brake ring (3) and the brake ring (4). Evaluation: 1.
In case the wear gauge (2) has entered between the brake rings (3 and 4), and the model scale of the wear gauge (2) and the housing face (5) have coincided, the wear amount of the brake disc (6) is not reached the maximum allowable limit of use. In case the wear gauge (2) has not entered be- tween the brake rings (3 and 4), and the model scale is sticking above the housing face (5), the brake disc (6) is worn in excess of the maximum allowable limit of use. 2. In the method above, in case the maximum al- lowable limit of use has not reached, or in case the service brake portion has been assembled, refer to the Performance Standard Table in Group T4-2.
Distance between Housing Face (5) and Brake Disc (6) 1 T4GB-04-04-004 2 Inspection Port T4GB-04-04-005 T4GB-04-04-006 T4-4-3 5 2 L 6 3 4 2 4 L Model Dimensions (L) mm ZW310 57