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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 |
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(SYMPTOMS) | MISADJUSTMENT(S) | COURSE OF ACTION | ||||||
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| OUTPUT PROBLEMS |
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The engine will not go to high idle | 1. Poor connection in weld circuit; | 1. Unplug P4/J4 connector and | ||||||
when a welding or auxiliary load | check cables, connectors, work | measure | the idle | solenoid | ||||
is applied. Engine idles up | clamp and electrode holder. | resistance | between | leads | ||||
normally and outputs are normal | Check that work clamp is | 213B and | 215A. | it | should | |||
when the engine switch is placed | making a good connection to | measure about 15 ohms. | ||||||
in the “high” position. | the work piece. | Measure the resistance from | ||||||
| 2. Load too low to activate the idle | lead 213B or lead 215A to | ||||||
| chassis ground. | Resistance | ||||||
| circuit. | Plug in a device that | ||||||
| should be very high; 500,000 | |||||||
| applies a load of 100 watts or | |||||||
| (500K) | ohms | or |
| higher. | |||
| more. |
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| Replace the solenoid if the | ||||||
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| NOTE: Some tools and devices | resistance | is | significantly | ||||
| different. |
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| check for “good” power before |
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| fully turning on. These devices | 2. Reconnect P4/J4 and start the | ||||||
| will require the machine to be | machine placing the engine | ||||||
| placed in the “high” position | |||||||
| switch in the high” position. | |||||||
| before they will function. | |||||||
| Plug in a | |||||||
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| Check for AC voltage at leads | |||||
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| 260 | |||||
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| meter should read about 1.2 | |||||
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| volts. If voltage is significantly | |||||
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| lower, replace | the | toroidal | |||
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| current transformer. |
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| 3. If the above readings are | |||||
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| normal, replace the PC board. | |||||
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No weld or auxiliary output – | 1. Make sure there is no load on | 1. The brushes and slip rings may | ||||||
Engine runs normally. | the machine. Disconnect all | be worn or faulty. Perform the | ||||||
| cables and cords from the weld | brush and slip ring service | ||||||
| output | terminals and the | procedure. |
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| auxiliary receptacles. Check for | 2. With the engine running, check | ||||||
| DC open circuit voltage (OCV) | |||||||
| (About 70 to 80 volts) at the | for battery voltage at the PC | ||||||
| board, | |||||||
| weld output terminals and check | |||||||
| voltage is not present, check | |||||||
| for AC auxiliary voltage at the | |||||||
| conductors and connection at | |||||||
| 120 and 240 VAC receptacles. | |||||||
| leads 208A, 208, and the | |||||||
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| 2. Check that circuit breakers are | engine wiring leading to the | ||||||
| not tripped. | engine charging system. If the | ||||||
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| connections are good, the | |||||
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| battery charging system may | |||||
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| be faulty. Contact a qualified | |||||
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| engine repair technician. | |||||
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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
