OPERATIONAL PERFORMANCE TEST / Wheel Loader Test HYDRAULIC CYLINDER CYCLE TIME Summary: 1. The overall performance of the cylinders drive system (between main pump and each cylinder) is judged by measuring the operating time of the cylinders for the lift arm, bucket and steeering. 2. The bucket is made empty in advance. Preparation: 1. Measurement is made for the following positions. 1-1. Measurement of Lift Arm Cylinder (for Liftig) Fully crowd the bucket and lower the lift arm. 1-2. Measurement of Lift Arm Cylinder (for Lowering) Lower the lift arm until the bucket bottom sur- face touches the ground horizontally. 1-3.
Measurement of Bucket Cylinder Lift the lift arm to the highest position. 1-4. Measurement of Steering Cylinder Empty the bucket and set the front attachment at the travel forward position. 2. Keep hydraulic oil temperature at 50 ± 5 ° C (122 ± 9 ° F). Lift Arm Cylinder: (for Lifting) T4GB-04-04-016 (for Lowering) T487-04-03-005 Bucket Cylinder: CAUTION: Perform this test on soft ground in order to reduce damage of the bucket. T487-04-03-006 Travel Position 0.4 to 0.5 m (1’ 4” to 1’ 8”) M4GB-04-001 T4-4-8