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TROUBLESHOOTING AND REPAIR | ||
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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 repair possible machine malfunctions. Simply follow the three step procedure below.
Step 1. LOCATE PROBLEM (SYMPTOM). Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes possible symptoms that the machinery may exhibit. Find the listing that best describes the symptom that the machine is exhibiting. Symptoms are grouped according to: feeding problems and function problems.
Step 2. PERFORM EXTERNAL TESTS. The second column labeled “POSSIBLE AREAS OF MISADJUSTMENT(S)” lists the obvious external possibilities that may contribute to the machine symptom. Perform these tests/checks in the order listed. In general, these tests can be conducted without removing the case wrap- around cover.
Step 3. PERFORM COMPONENT TESTS. The last column labeled “RECOMMENDED COURSE OF ACTION” lists the most likely components that may have failed in your machine. It also specifies the appropriate test procedure to verify that the subject component is either bad or good. 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 your problem.
All the necessary test specifications and repair procedures are described in detail following the troubleshooting guide. All electrical test points, terminal strips, junctions, etc., can be found on the electrical wiring diagrams and schematics in the 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 the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call
