Cylinder Speed - Check
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538 Forest Machine Machine Systems
[M0067938]
538 Forest Machine Machine Systems
Cylinder Drift - Check - Loaded Bucket
538 Forest Machine Machine Systems
Engine Performance - Test - Engine Speed
HYDRAULIC SYSTEM
CYLINDER GP
538 Forest Machine Machine Systems
Cylinder Drift - Check - Empty Bucket
538 Forest Machine Machine Systems
Cylinder Drift - Check - Loaded Bucket
538 Forest Machine Machine Systems
Cylinder Speed - Check
1.1. Specification
2.1. Introduction
3.1. Required Tools
4.1. Test Procedure
Show/hide table
"Cylinder Speed - Check" | ||||
---|---|---|---|---|
Cylinder Operating Speed ( seconds) (without attachment) | ||||
Item | Cylinder Position | 538 GF | 538 LL | Actual |
Boom | Extension | 3.0 ± 0.3 | 5.0 ± 0.3 | |
Retraction | 2.6 ± 0.3 | 5.7 ± 0.3 | ||
Stick | Extension | 3.4 ± 0.3 | 3.8 ± 0.3 | |
Retraction | 2.5 ± 0.3 | 4.4 ± 0.3 | ||
Heel | Extension | - | 2.6 ± 0.3 | |
Retraction | - | 4.8 ± 0.3 |
The performance level of the cylinders and the hydraulic oil flow through the system to the implements can be determined by 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.
Show/hide table
Description | Qty |
---|---|
Stopwatch | 1 |
- Perform the following steps to test the operating speed of the boom cylinders.
- Place the machine on level ground.
- Fully extend the stick cylinder.
- Fully retract the boom cylinders. With a stopwatch, measure the time that is required to fully extend the boom cylinders.
- Position the boom cylinders at full extension. With a stopwatch, measure the time that is required for the boom cylinders to fully retract.
- Refer to the specifications in Table 1 for the operating speed of the boom cylinders.
Show/hide tableIllustration 1 g06072721 (A) Extension test
(B) Retraction test - Perform the following steps to test the operating speed of the stick cylinder.
- Place the machine on level ground.
- Position the upper surface of the boom parallel to the ground.
- Retract the stick cylinder. With a stopwatch, measure the time that is required to fully extend the stick cylinder.
- Extend the stick cylinder. With a stopwatch, measure the time that is required to fully retract the stick cylinder.
- Refer to the specifications in Table 1 for the operating speed of the stick cylinder.
Show/hide tableIllustration 2 g01405223 (A) Extension test
(B) Retraction test - Perform the following steps to test the operating speed of the heel cylinder.
- Place the machine on level ground.
- Position the grapple against the heel. Close the grapple.
- Fully retract the stick cylinder.
- With a stopwatch, measure the time that is required to fully extend the heel cylinder.
- Position the heel cylinder a full extension.
- With a stopwatch, measure the time that is required to fully retract the heel cylinder.
- Refer to the specifications in Table 1 for the operating speed of the heel cylinder.
Show/hide tableIllustration 3 g01405224 (A) Extension test
(B) Retraction test
Information System:
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