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Section F-1

TABLE OF CONTENTS

Section F-1

 

- TROUBLESHOOTING & REPAIR SECTION -

 

 

 

 

Troubleshooting & Repair Section

Section F

How to Use Troubleshooting Guide

F-2

PC Board Troubleshooting Procedures and Replacement

F-3

Troubleshooting Guide

F-4

Test Procedures

 

Boost Power Board Test

F-11

Gas Solenoid Valve Test

F-15

Contactor Test

F-17

Drive Motor Test

F-19

Hall Effect Module Test

F-21

Replacement Procedures

 

Contactor Removal and Replacement

F-23

Feedhead Control Board Removal and Replacement

F-27

Boost Power Supply Board Removal and Replacement

F-31

Wire Drive Assembly Removal and Replacement

F-35

Cover & Spindle Mount Removal and Replacement

F-37

Roll Cage Removal and Replacement

F-41

Retest After Repair

F-43

LN-15

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Lincoln Electric SVM166-A service manual Troubleshooting & Repair Section, Section F