Lincoln Electric IM872 LF-74 WIRE FEEDER - Manual (Page 7)

vi vi TABLE OF CONTENTS
Page
Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Safety Precautions.................................................................................................A-2
Location...........................................................................................................A-2
Mounting .........................................................................................................A-2
Bench Mount ...................................................................................................A-3
Swivel Mount...................................................................................................A-3
Boom Mount....................................................................................................A-3
Suspended ......................................................................................................A-3
Weld Cable Sizes............................................................................................A-4
Coaxial Weld Cables.......................................................................................A-5
Weld Cable Connections.................................................................................A-5
Analog Control Cable Connections........................................................................A-6
Analog Miller Control Cable Adapter .....................................................................A-7
Welding Gun/Wire Feeder Trigger Connector.................................................A-8
High Frequency Protection..............................................................................A-8
Remote Sense Lead Specifications ................................................................A-8
Wire Drive Systems ...............................................................................................A-8
Welding Guns, Torches and Accessories..............................................................A-9
Wire Drive Configuration......................................................................................A-10
Assembly of Drive Rolls and Wire Guides ...........................................................A-11
Pressure Arm Adjustment....................................................................................A-12
Shielding Gas Connection ...................................................................................A-13
Wire Reel Loading.........................................................................................A-14
Weld Wire Routing ........................................................................................A-15
Installing Electrode Conduit Kits ..........................................................................A-16
Aluminum Wire Preparations ...............................................................................A-17
Base Model, Bench Model and Extra Torque Bench Model ................................A-18
Common Equipment Set-Ups ..............................................................................A-19
High Volume Production ......................................................................................A-20
Portable Welding .................................................................................................A-21
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Operation .........................................................................................................Section B
Safety Precautions.................................................................................................B-1
Graphic Symbols ...................................................................................................B-1
Common Welding Abbreviations ...........................................................................B-1
Product Description ...............................................................................................B-2
Recommended Processes and Required Equipment............................................B-2
Front Panel Controls and Connections..................................................................B-3
1. Wire Feed Speed Knob...............................................................................B-4
2. Remote Voltage Control Kit (Optional)........................................................B-4
3. Burnback and Postflow Timer Kit (Optional) ...............................................B-4
4. Thermal LED, Motor Overload ....................................................................B-4
5. Cold Feed/Gas Purge Switch......................................................................B-4
6. 2 Step - Trigger Interlock Switch .................................................................B-5
7. Gun Receiver Bushing ................................................................................B-5
8. Trigger Connector 5-Pin Amphenol.............................................................B-5
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Accessories .....................................................................................................Section C
General Options / Accessories ................................................................C-1 thru C-4
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