OPERATIONAL PERFORMANCE TEST / Excavator Test SWING SPEED Summary: Measure the time required to swing three complete turns and check the performance of swing device systems (from main pump to swing motor). Preparation: 1. Check lubrication of the swing gear and swing bearing. 2. Place the machine on flat, solid ground with ample space for swinging. Do not conduct this test on slopes. 3. With the arm fully retracted and the bucket fully extended, hold the bucket so that the height of the bucket pin is the same as the boom foot pin. The bucket must be empty. CAUTION: Prevent personal injury.
Always make sure that the area is clear and that co-workers are out of the swing area before starting the measurement. Measurement: 1. Select the following switch positions: Engine Control Dial Work Mode Fast Idle Digging Mode 2. Operate the swing control lever fully. 3. Measure the time required to swing 3 turns in one direction. 4. Operate swing control lever fully in the opposite direction and measure the time required for 3 turns. 5. Repeat the measurement three times and calculate the average values. Evaluation: Refer to the Operational Performance Standard in Group T4-2. Remedy: Refer to the Troubleshooting B in Group T5-6.
The same height as the boom foot pin height T105-06-03-013 NOTE: In case a sufficient space for the meas- urement is difficult to find, carry out the measurement with the boom fully raised and the arm fully rolled-in. T178-04-03-001 4. Maintain the hydraulic oil temperature at 50 ± 5 ° C (122 ± 41 ° F). T4-4-5 Power Mode Switch Auto-Idle Switch P Mode OFF