Lincoln Electric LF-72/74 User Manual

POWER FEED 10M SINGLE/DUAL

Section BB-1

Section BB-1

TABLE OF CONTENTS

- OPERATION SECTION -

Operation..............................................................................................................Section BB

Safety Precautions .....................................................................................................BB-2

Graphic Symbols .......................................................................................................BB-2

Common Welding Abbreviations ...............................................................................BB-2

Product Description ...................................................................................................BB-3

Recommended Processes and Required Equipment ...............................................BB-3

Front Panel Controls and Connections .....................................................................BB-4

1. Wire Feed Speed Knob ....................................................................................BB-5

2. Remote Voltage Control Kit (Optional) .............................................................BB-5

3. Burnback and Postflow Timer Kit (Optional)....................................................BB-5

4. Thermal LED, Motor Overload .........................................................................BB-5

5. Cold Feed/Gas Purge Switch...........................................................................BB-5

6. 2 Step - Trigger Interlock Switch .....................................................................BB-6

7. Gun Receiver Bushing......................................................................................BB-6

8. Trigger Connector 5-Pin Amphenol..................................................................BB-6