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vii
TABLE OF CONTENTS
Page
Installation .......................................................................................................Section A
Technical Specifications ........................................................................................A-1
Identify and Locate Components...........................................................................A-2
Select Suitable Location ........................................................................................A-3
Stacking ..........................................................................................................A-3
Tilting...............................................................................................................A-3
Output Connections...............................................................................................A-3
Work Clamp Installation ..................................................................................A-3
Work Cable Installation ...................................................................................A-4
Gun Installation......................................................................................................A-4
Connecting Gun Cable to the Handymig 170i.................................................A-4
Gas Connection.....................................................................................................A-4
Input Connections..................................................................................................A-5
Electrical Input Connection for Rated Output ........................................................A-6
Line Cord Connection .....................................................................................A-6
Operation .........................................................................................................Section B
Safety Precautions ................................................................................................B-1
General Description...............................................................................................B-1
Recommended Processess ............................................................................B-1
Optional Features and Controls ......................................................................B-1
Design Features and Advantages .........................................................................B-1
Welding Capability.................................................................................................B-2
Limitations..............................................................................................................B-2
Controls and Settings ............................................................................................B-2
Welding Operations ...............................................................................................B-3
Sequence of Operations .................................................................................B-3
Wire Loading..............................................................................................B-3
Friction Brake Adjustments ........................................................................B-3
Wire Threading...........................................................................................B-4
Making a Weld ...........................................................................................B-5
Cleaning Tip and Nozzle............................................................................B-5
Process Guidelines................................................................................................B-5
Changing Over to Feed Other Wire Sizes .............................................................B-6
Welding with GMAW..............................................................................................B-6
Welding with FCAW...............................................................................................B-6
Learning to Weld .......................................................................................................B-7
Overload Protection...............................................................................................B-7
Output Overload..............................................................................................B-7
Thermal Protection..........................................................................................B-7
Electronic Wire Drive Motor Protection ...........................................................B-7
Learning to Weld....................................................................................................B-7
The Arc-Welding Circuit ..................................................................................B-7
The Self-Shielded FCAW Welding Arc............................................................B-8
The GMAW (MIG) Welding Arc.......................................................................B-8
Process Selection ...........................................................................................B-9
For GMAW (MIG) Process.........................................................................B-9
For FCAW (Innershield) Process ...............................................................B-9
Common Metals..............................................................................................B-9
Joints Types and Positions .............................................................................B-9
Butt Welds..................................................................................................B-9
Penetration...............................................................................................B-10
Fillet Welds...............................................................................................B-10
Handymig 170i