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TROUBLESHOOTING AND REPAIR | ||||
Observe Safety Guidelines detailed in the beginning of this manual. |
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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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Both the weld and auxiliary | Make sure the engine is | Perform the Engine RPM |
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output voltages are low | operating at the correct high idle | Adjustment Test. |
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| speed. | Perform the Brush and Slip |
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| Make sure that no load is |
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| Ring Service Procedure. |
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| connected to either the weld or | Perform the Exciter Rotor |
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| auxiliary outputs. |
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| Voltage Test. |
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| Perform Exciter Rotor |
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| Resistance and Ground Test. |
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There is no, or very low weld | Check that the electrode polarity | Perform the Brush and Slip |
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output, and no auxiliary output. | switch is not in the off position, | Ring Service Procedure. |
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| and that the remote/local switch | Perform the Exciter Rotor |
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| is in the local control position. |
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| Check that the auxiliary power | Voltage Test. |
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| circuit breakers and GFCIs (if so | Perform the Exciter Rotor |
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| equipped) are not tripped. |
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| Resistance and Ground Test. |
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| NOTE: GFCIs will not reliably |
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| reset, unless engine is operating |
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| at high idle RPM. |
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| Check all leads and cables for |
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| damaged or poor connections. |
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There is no, or very low weld | Check the polarity switch; make | Perform the Shunt Field Coil |
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output voltage. | The auxiliary | sure it is not in the off position. | Resistance and Ground Test. |
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output is normal. | Check that the remote/local | Perform the Shunt Field Circuit | ||
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| switch is positioned correctly. | Voltage Test. |
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| If a remote current control is | Perform the Welding Generator | |
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| being used, try switching to | Brush and Commutator |
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| local control. The remote | Inspection and Service |
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| current control may be faulty. | Procedure. |
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| Check all leads and cables for | Check for damaged or poor |
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| damaged or poor connections. | connections at the brush |
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| holders, series and interpole |
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| coils, weld output control unit, |
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| weld output terminals, and all |
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| the conductors connecting these | |
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| components. |
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| The Armature may be faulty. |
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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