OPERATIONAL PERFORMANCE TEST / Excavator Test TRACK REVOLUTION SPEED Summary: Measure the track revolution cycle time with the track raised off ground and check the performance of travel device systems (from main pump to travel motor). Preparation: 1. Adjust the track sag of both side tracks equally. 2. On the track to be measured, put the mark on one shoe by using a piece of chalk or cloth. 3. Jack up the track to be measured as illustrated. Measurement: 1. Measure on both tracks at slow and fast travel speeds of the machine. 2. Select the following switch positions: Travel Mode Switch Work Mode Slow Mode Digging Mode Fast Mode Digging Mode 3.
Operate the travel control lever of the track to be measured to full stroke. 4. Measure the time required for 3 revolutions in both directions after a constant track revolution speed is obtained. 5. Repeat the measurement three times and calculate the average values. Evaluation: Refer to the Operational Performance Standard in Group T4-2. 90 to 110 ° M104-07-067 CAUTION: Securely support the raised machine by using the blocks. 4. Maintain the hydraulic oil temperature at 50 ± 5 ° C (122 ± 41 ° F). NOTE: The measurement data obtained through the raised track revolution test may have wide variations.
Therefore, the evaluation based on the results obtained from the 10 m travel speed check described before is more recommendable. Remedy: Refer to the Troubleshooting B in Group T5-6. T4-4-2 Engine Control Dial Power Mode Switch Auto-Idle Switch Fast Idle P Mode OFF Fast Idle P Mode OFF