Lincoln Electric NA-5SF, NA-5NF service manual External Resistance Test Leads #21 and #67

Models: NA-5S NA-5N NA-5SF NA-5NF

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F-50

TROUBLESHOOTING & REPAIR

F-50

 

 

EXTERNAL RESISTANCE TEST (LEADS #21 AND #67)

WARNING

Service and repair should be performed only by Lincoln Electric factory trained per- sonnel. Unauthorized repairs performed on this equipment could result in danger to the technician or the machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precau- tions detailed throughout this manual.

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 (216) 383-2531 or (800) 833-9353 (WELD).

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TEST DESCRIPTION

This test will help the technician to determine if the external voltage sensing leads are con- nected properly and intact.

This procedure takes approximately 8 minutes to perform.

MATERIALS NEEDED

Volt-Ohmmeter (Multimeter) 5/16" Nutdriver

3/4" wrench Wiring diagram

NA-5

Page 103
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Lincoln Electric NA-5SF, NA-5NF service manual External Resistance Test Leads #21 and #67