Term
| What is a methodical system of cause-and-effect thinking called? |
|
Definition
|
|
Term
| Put simply troubleshooting is what? |
|
Definition
| Finding out what went wrong in a logical, methodical manner. Steps are applied in order of priority, after first considering the most logical thing to check. |
|
|
Term
| The probability of one problem being more likely than another problem is based on what? |
|
Definition
| The performance history of the particular hydraulic system. |
|
|
Term
| For diagnosising systems what steps should you take. |
|
Definition
1. Study the most recent history of its operation and performance.
2. Evaluate the symptoms to determine the cause of the present malfunction.
3. Determine what the causes of the problem might be and decide on a logical order of checking them out. |
|
|
Term
| What different ways are there to evaluate the recent maintenance history? |
|
Definition
1. Talk with the person reporting the problem.
2. See and hear the system operate. |
|
|
Term
| What are some questions you should ask yourself before diving right in and taking things apart? |
|
Definition
1. Is the complaint legitimate?
2. Has the system ever operated properly?
3. If it has, when was the last time it did so?
4. Has anyone serviced or made adjustments to the system recently? If so, what was done to correct it? |
|
|
Term
| Mr. Williams Troubleshooting order. |
|
Definition
1. Do I have main power
2. Do I have control power
3. What signals the 4 way valve.
4. Cylinder problems. |
|
|
Term
| What are some examples of typical symptoms? |
|
Definition
1. The pump will not develop pressure.
2. The pump will not develop flow.
3. The pump is noisy.
4. Pressure is fluctuating.
5. The system seems slow or sluggish.
6. The cylinder will not move.
7. The machine chatters.
8. The valve will not shift.
9. The valve squeals.
10. The system is hot. |
|
|
Term
| In determining the cause from the various symptoms what hard and fast rule can save you a lot of time and work? |
|
Definition
Check the probable causes that are easiest to check first. For example:
1. Is there enough fluid in the reservoir?
2. Is the fluid intake strainer plugged?
3. Is the pump running in the right direction?
4. Does it develop any pressure? Does the gauge needle move at all?
5. Is the gauge good?
6. Can you hear fluid leaking or fluid bypassing any valves or components? |
|
|
Term
| What should you do if you do not find the cause with the first step? |
|
Definition
| Continue on until you do. |
|
|
