Use Table 1 to determine the correct cylinder cycle times. Choose the column that has the cycle times for your Motor Grader. Record the actual cycle times inthe columnthat is on the right side of the table. The cycle times that are shown inTable 1 are in seconds. The number of steering wheel rotations from the left stoptothe right stopdetermines the steering check.
For most cylinders, a test cycle is the full range of movement. For the following cylinders, a test cycle is movement through a
All the checks of the implement cycle times must be performed at high idle. The hydraulic oil must be at normal operating temperature. Ensure that the cylinderbears no additional loads. The following causes will create extra loads: interferencefrom other machine components, contact with foreign objects and contactwith the ground.
If any test results are unacceptable refer to Troubleshooting Section, "Symptom Procedures".
| Implement Cycle Times for Motor Graders | |||
|---|---|---|---|
| Implement | Action | Implement Cycle Times | Actual Implement Cycle Times |
| Blade Lift | Rod In (1)
Rod Out (1) |
3.0 ± 1.0
3.0 ± 1.0 |
|
| Centershift | Rod In (2)
Rod Out (2) |
6.0 ± 2.0
7.0 ±2.0 |
|
| Wheel Lean | Rod In (2)
Rod Out (2) |
2.0 ± 0.5
2.5 ± 1.0 |
|
| Blade Tip | Rod In (2)
Rod Out (2) |
3.0 ± 1.0
3.0 ± 1.0 |
|
| Sideshift | Rod In (2)
Rod Out (2) |
9.5 ± 2.5
11.0 ± 3.0 |
|
| Scarifier (If Equipped) | Rod In (1)
Rod Out (1) |
2.5 ± 1.0
3.0 ± 1.0 |
|
| Ripper (If Equipped)(1) | Rod In (1)
Rod Out (1) |
4.5 ± 1.0
5.0 ± 1.5 |
|
| Articulation | Rod In (2) (3)
Rod Out (2) (3) |
3.5 ± 1.5
3.5 ± 1.5 |
|
| Blade Circle | 1/4 Rotation | 13.5 ± 3.5 | |
| Steering Wheel | Number of Turns | 6.5 ± 0.5 rev | |
| (1) | Cycle times are for “running distance” of |
| (2) | Cycle time is through full travel. |
| (3) | Operate the machine at high idle and place the transmission control (lever) in the neutral position. The differential must be unlocked. |
| Tool | Part No | Description | QTY |
| D | A Stopwatch or Timer | 1 | |
| F | 1U-9366 | Automatic Tape Measure | 1 |
- Move the machine to a smooth horizontal location.
- Chock the wheels.
- Lower all the implements.
- Raise the implement to the maximum height.
- Place a mark on the rod. Place the mark just below the cylinder head. Use ink to create all marks. Do not create marks by scratching or byscoring.
- Use Tooling (D) to determine the time that is required to lower the cylinderby
305 mm (12 inch) . Use the Tooling (F) to determine305 mm (12 inch) ofmovement. Use the mark asa reference. - Position the implement just above the ground.
- Place two marks on the rod. Place the marks
305 mm (12 inch) away fromeach other. - Use the Tooling (D) to determine the time that is required to raise the cylinderby
305 mm (12 inch) . Use the marks forreference.
| |
| Illustration 1 | g02146746 |
|
(1) Cylinder rod
(2) Marks (A) Runningdistance (F) Tape measure | |