Справочник Пользователя для Lincoln Electric SVM 106-A

Troubleshooting And Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Section F

How To Use Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . .

PC Board Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Relay Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trigger Transformer Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control Cable Continuity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Component Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . .

Wire Feed Speed Potentiometer Replacement . . . . . . . . . . . . . . .

Circuit Breaker Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Ground Lead Protector Push Button Switch Replacement . . . . . . .

Trigger Transformer Replacement . . . . . . . . . . . . . . . . . . . . . . . . .

Ground Lead Protector Reed Switch Replacement . . . . . . . . . . . . .

Control PC Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . .

Main Power Resistor (R

) Replacement . . . . . . . . . . . . . . . . . . . . .

Control Relay Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wire Drive Assembly and Components Replacement . . . . . . . . . . .

Swing Arm Assembly Replacement for Two-Roll Wire Feeders . . . .

Swing Arm Assembly Replacement for Four-Roll Wire Feeders . . .

Gas Solenoid and Connections Replacement . . . . . . . . . . . . . . . . .

Retest After Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Section F

TABLE OF CONTENTS

- TROUBLESHOOTING AND REPAIR SECTION -

LN-7 GMA WIRE FEEDER

ELECTRIC SHOCK can kill.

• Never work on the inside of the machine without turning off the input

power. You can receive a life threatening electrical shock if you fail to
do this. Only qualified technicians should perform installation,
maintenance, and troubleshooting work on the machine.

WARNING

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