Travel on Level Ground - Test
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".
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Required Tools     | ||
---|---|---|
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 AEC switch OFF.
- 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 9 through 11.
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Travel Time (time in seconds)     | ||||
---|---|---|---|---|
Travel Speed     | New     | Rebuild     | Service Limit     | |
HIGH     | Forward     | 15.0 or less     | 16.0 or less     | 18.0 or less     |
Reverse | ||||
LOW     | Forward     | 23.5 or less     | 24.5 or less     | 26.0 or less     |
Reverse |
Note: The following table represents the travel deviation (distance) from the reference line.
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Travel Deviation mm (inch)     |
||||
---|---|---|---|---|
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 |
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