OPERATIONAL PERFORMANCE TEST / Excavator Test TRAVEL SPEED Summary: Measure the time required for the excavator to travel a test track and check the performance of travel device systems (from main pump to travel motor). Preparation: 1. Adjust the track sag on both tracks equally. 2. Prepare a flat and solid test track 10 m (33 ft) in length with extra length of 3 to 5 m (9.8 to 16 ft) on both ends for machine acceleration and de- celeration. 3. With the arm and bucket fully extended, hold the bucket 0.3 to 0.5 m (12 to 20 in) above the ground. 4. Maintain hydraulic oil temperature at 50 ± 5 ° C (122 ± 41 ° F). Measurement: 1. Measure at both slow and fast speeds of the machine. 2.
Select the following switch positions: Travel Mode Switch Work Mode Slow Mode Digging Mode Fast Mode Digging Mode 3. Start traveling the machine in the acceleration zone with the travel levers to full stroke. 4. Measure the time required to travel 10 m (33 ft). 5. After measuring the forward travel speed, turn the upperstructure 180 ° and measure the reverse travel speed. 6. Repeat the measurement three times in each di- rection 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. Arm Rolled-In, Bucket Rolled-In Bucket Height:
0.3 to 0.5 m End Start 10 m Deceleration Zone 3 to 5 m Acceleration Zone 3 to 5 m T105-06-03-001 T4-4-1 Engine Control Dial Power Mode Switch Auto-Idle Switch Fast Idle P Mode OFF Fast Idle P Mode OFF