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F-1 TROUBLESHOOTING & REPAIR
HOW TO USE TROUBLESHOOTING GUIDE
WARNING
Service and Repair should only be performed by Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this
manual.
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This Troubleshooting Guide is provided to help you locate and correct possible machine malfunctions or misadjustments. Simply follow the
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Step 1. LOCATE PROBLEM (SYMPTOM).
Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes pos- sible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting.
Symptoms are grouped into the following categories: Output Problems; Feeding Problems; Gas Flow Problems; and Welding Problems.
Step 2. PERFORM EXTERNAL TESTS. The second column labeled “POSSIBLE AREAS OF MISADJUSTMENT(S)” lists the obvious external possibilities that may con- tribute to the machine symptom. Perform these tests/checks in the order listed. In general, these tests can be conducted with- out removing the case
Step 3. PERFORM COMPONENT TESTS.
The last column labeled “Recommended Course of Action” lists the most likely com- ponents that may have failed in your machine. It also specifies the appropriate test procedure to verify that the subject component is either good or bad. If there are a number of possible components check the components in the order listed to eliminate one possibility at a time until you locate the cause of you problem.
All the needed test specifications and repair procedures are described in detail on the referenced pages. All the needed electrical test points, terminal strips, junctions, etc., can be found on the referenced electrical wiring diagrams and schematics. See Electrical Diagram Section.
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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 your LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed. Call
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