OPERATIONAL PERFORMANCE TEST / Wheel Loader Test BUCKET STOPPER AND BELL CRANK STOPPER CLEARANCE Summary: Wear and deformation conditions of the bucket stopper (dump end and crowd end) and the clear- ance between the bell crank stopper and the cross tube are measured. Preparation: Stop the vehicle on a plane ground and operate the parking brake. Measurement: 1. Bucket dump stopper 1-1. Raise the lift arm at the highest lifting position. Stop the engine. 1-2. While stopping the engine, dump the bucket calmly until the bucket contacts the dump stopper. At this time, measure strokes (A, B) of the bucket cylinder and the lift arm cylinder and dump angle (C) of the bucket.
In addition, measure the clearance between the bell crank stopper and the cross tube. 1-3. At the same time, measure the contact condi- tions of the bucket dump stoppers (left and right). 2. Bucket crowd stopper 2-1. Raise the lift arm until stroke (E) of the lift arm cylinder becomes the length of the standard dimension. 2-2. Set the engine at idling speed, and make crowding operation until the bucket calmly con- tacts the bucket crowd stopper. 2-3. At this time, measure strokes (D, E) of the bucket cylinder and the lift arm cylinder and crowd angle (F) of the bucket. In addition, measure height (G) from the ground to the bucket lowest position. 2-4.
Measure the contact conditions of the bucket crowd stoppers (left and right) at the same time. Bucket Dump Stopper Bell Crank Stopper T4GB-04-04-008 Bucket Crowd Stopper T4GB-04-04-010 T4-4-6