Note: The engine speed and/or the machine configuration that is used during this test can affect the results of this test. Refer to Testing and Adjusting, “Engine Performance – Test” for the engine speed that was used for this test. Refer to Testing and Adjusting, “Operational Checks” for the machine configurations that were used for this test.
Note: The relief valve pressure settings must be set to the relief valve pressure specification before performing this operational check. Refer to Testing and Adjusting, “Specifications”.
Required Tools | ||
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Part Number | Description | Qty |
5P-3277 | Measuring Tape | 1 |
Stopwatch | 1 |
- Travel distance must be at least 25 m (82 ft) long. Travel test ground must be hard and as level as possible.
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Illustration 1 | g00296317 |
(A) Preliminary run 5 m (16.4 ft) (B) Travel distance 20 m (65.6 ft) (C) Bucket height 0.5 to 1 m (1.6 to 3.3 ft) |
- Draw a 25 m (82 ft) straight line on travel test ground as a reference line.
- Start the engine.
- Place the machine controls at the following settings: Engine speed dial “10” and Low idle switch OFF.
- Place the hydraulic activation control lever in the UNLOCKED position.
- Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).
- The bucket should be empty.
- Position the machine so that one track is parallel with the reference line. Position the machine for the travel test. Refer to Illustration 1.
- Place the travel speed control switch in HIGH position.
- Move the machine by operating both travel levers at the same time.
- The first 5 m (16.4 ft) are for a preliminary run. Measure the travel time that is required to travel the remaining 20 m (65.6 ft). Measure the time that is required in each direction.
- Measure the travel deviation from the reference line.
- Place the travel speed control switch on the LOW position and repeat Steps 10 through 12.
Travel Time (time in seconds) | ||||
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Travel Speed | New | Rebuild | Service Limit | |
HIGH | Forward | 15.3 or less | 17.6 or less | 19.9 or less |
Reverse | ||||
LOW | Forward | 22.9 or less | 26.3 or less | 29.8 or less |
Reverse |
Note: The following table represents the travel deviation (distance) from the reference line.
Travel Deviation mm (inch) |
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Travel Speed | New | Rebuild | Service Limit | |
HIGH | Forward | 800 (31.5) or less | 1200 (47.2) or less | 1500 (59.1) or less |
Reverse | ||||
LOW | Forward | 800 (31.5) or less | 1200 (47.2) or less | 1500 (59.1) or less |
Reverse |