OPERATIONAL PERFORMANCE TEST / Excavator Test Measurement: 1. Select the following switch position: Power Mode Switch Auto-Idle Switch Work Mode P Mode OFF Digging Mode 2. Maintain the engine at slow idle. After five minutes, measure difference between the marks along bearing outer circumference and track frame. 3. Perform the measurement in both right and left swing directions. 4. Repeat the measurement three times in each direction 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. Measure Difference between Marks Mark on Track Frame Mark on Swing Bearing T105-06-03-010 T4-4-9