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TROUBLESHOOTING AND REPAIR | ||
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Observe Safety Guidelines detailed in the beginning of this manual.
PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED | ||
(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | ||
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| ENGINE PROBLEMS |
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Engine will not idle down to low | 1. Make sure the Engine Control | 1. With the Engine Control Switch | ||
speed. Machine has normal weld | Switch (S3) is in the “AUTO” | in the “AUTO” position, check | ||
output and auxiliary power. | position. | for the presence of 12VDC at | ||
| 2. Make sure there is NOT an exter- | leads #213 to #215 located at | ||
| the Idler Solenoid. If 12VDC is | |||
| nal load on the weld terminals or | |||
| present and the Idler Solenoid is | |||
| the auxiliary power receptacles. | |||
| not activating, then the solenoid | |||
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| may be faulty or there is a | ||
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| mechanical | restriction | prevent- |
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| ing it from functioning. |
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| 2. If there is NOT 12VDC at leads | ||
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| #213 to #215, then test for | ||
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| 12VDC from lead #213 to | ||
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| ground (lead #5). See Wiring | ||
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| Diagram. If 12VDC is present, | ||
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| then check lead #215 for conti- | ||
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| nuity (zero ohms) from the Idler | ||
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| Solenoid to the Printed Circuit | ||
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| Board plug 3J1. If lead #215 is | ||
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| OK, then the Printed Circuit | ||
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| Board may be faulty. Replace | ||
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| 3. If there is NOT 12VDC from lead | ||
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| #213 to ground (lead #5), then | ||
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| check the | Engine | Control |
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| Switch (S3) for proper operation | ||
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| and associated wires for loose | ||
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| or faulty connections. See the | ||
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| Wiring Diagram. |
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Engine will not crank or cranks very 1. | Check for loose or faulty battery | 1. | If the battery is replaced or tests |
slow. | cable connections. |
| good, then the charging circuit |
2. | The battery may be faulty. |
| may be faulty. Perform the |
| Charging Circuit Test. | ||
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3. | Check the ammeter to see if the | 2. | The starter motor or starter |
| battery is charging. If not, the |
| solenoid may be faulty. |
| charging circuit may be defec- |
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| 3. | The Engine may be hard to | |
| tive. | ||
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| crank due to a mechanical fail- |
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| ure in the engine. |
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call
