"Cylinder Drift - Check (Empty Bucket)" | ||||
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Item | Cylinder Position | 538 GF | 538 LL | Actual |
Boom Cylinder | Extended | |
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Stick Cylinder | Retracted | |
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|
Extended | |
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Heel Cylinder | Extended | - | |
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Retracted | - | |
The performance level of the cylinder and the cylinder seals for the implements can be determined with the following procedure.
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 (Engine Speed)" 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".
Note: Work tools must be removed for this test.
Description | Qty |
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Measuring Tape | 1 |
Stopwatch | 1 |
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Illustration 1 | g01803815 |
Boom Cylinder Head End, Stick Cylinder Rod End, and Bucket Cylinder Head End
- Position the machine on level ground. Empty the bucket. Refer to Illustration 1.
- Fully extend the bucket cylinder.
- Fully retract the stick cylinder.
- Extend the stick cylinder rod
70 mm (2.8 inch) from the fully retracted position. - Raise the boom until the stick to bucket pin is the same height as the boom foot pin. Refer to Illustration 1.
- Measure each cylinder length from cylinder pin to cylinder pin.
- Stop the engine.
- Leave the machine in this position for 5 minutes. Measure each cylinder length from cylinder pin to cylinder pin for drift.
- Start the engine.
- Fully extend the bucket cylinder.
- Fully extend the stick cylinder.
- Retract the stick cylinder rod
60 mm (2.4 inch) from the fully extended position. - Raise the boom until the stick to bucket pin is
600 mm (23.6 inch) high from ground level. - Measure the stick cylinder length from cylinder pin to cylinder pin.
- Stop the engine.
- Leave the machine in this position for 5 minutes. Measure the stick cylinder length from cylinder pin to cylinder pin for drift.
- Start the engine.
- Fully retract the bucket cylinder.
- Fully retract the stick cylinder.
- Raise the boom until the stick to bucket pin is
600 mm (23.6 inch) high from ground level. - Measure the bucket cylinder length from cylinder pin to cylinder pin.
- Stop the engine.
- Leave the machine in this position for 5 minutes. Measure the bucket cylinder length from cylinder pin to cylinder pin for drift.