TROUBLESHOOTING | ||
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| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Battery does not stay charged. | 1. | Faulty battery . | |
| 2. | Faulty engine alternator. | |
| 3. | Loose or broken lead in charging | |
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| circuit. |
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| 4. | Loose fan belt may need tighten- | |
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| ing. |
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Engine will not idle down to low | 1. | Idler switch in HIGH idle position, | |
speed. |
| make sure switch is set to AUTO. | |
| 2. | External load on welder or auxil- | |
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| iary power. | |
| 3. | Mechanical problem in idler sole- | |
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| noid linkage. | |
| 4. | Faulty wiring in solenoid circuit. | |
| 5. | No or low voltage @ idle solenoid | |
| 6. | Faulty idler solenoid. | |
| 7. | Faulty, | Weld Control PCB |
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| (Printed Circuit Board), Pull Coil | |
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| /Battery PCB | |
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Engine will not go to high idle when | 1. | Poor work lead connection to | |
attempting to weld. |
| work. |
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| 2. | Broken idler solenoid spring. | |
| 3. | Welding | Terminals switch in |
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| wrong position. | |
| 4. | No open circuit voltage at output | |
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| studs. |
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| 5. | Faulty, Pull Coil/Battery PCB or | |
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| Weld Control PCB. | |
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Engine will not go to high idle when | 1. | Broken wire in auxiliary current | |
using auxiliary power. |
| sensor wiring. | |
| 2. | Auxiliary power load is less than | |
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| 100 watts. | |
| 3. | Faulty Pull Coil/Battery PCB or | |
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| Weld Control PCB. | |
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If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
AIR VANTAGE® 500 CUMMINS
