OPERATIONAL PERFORMANCE TEST / Wheel Loader Test BUCKET STOPPER AND BELL CRANK 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 road surface, and oper- ate the parking brake. Measurement: 1. Bucket dump stopper 1-1. Raise the lift arm to the highest lifting position, and stop the engine. 1-2. At stop of the engine, dump calmly until the buket contacts the dump stopper. At this time, measure the Strokes (A and B) of the bucket cylinder and the lift arm and the dump angle (C) of the bucket.
In addition, measure the clear- ance between the bell crank stopper and the cross tube. 1-3. At the same time, make measurement of the contact conditions of the bucket dump stoppers (left and right). 2. Bucket crowd stopper 1-1. Raise the lift arm until the lift arm cylinder stroke (E) becomes the length of the standard dimen- sion. 1-2. Set the engine at idling speed, and make crowding operation until the bucket calmly con- tacts the bucket crowd stopper. 1-3. At this time, measure the strokes (D and E) of the bucket cylinder and the lift arm cylinder and the crowd angle (F) of the bucket. In addition, measure the height (G) from the ground to the bucket lowest portion. 1-4.
Also measure the contact conditions of the bucket crowd stoppers (left and right). Bucket Dump Stopper Bell Crank Stopper T4GB-04-04-008 Bucket Crowd Stopper T4GB-04-04-010 T4-4-6