TABLE OF CONTENTS
Page
Installation ................................................................Section A
Technical Specifications ................................................A-1
Safety Precautions. .......................................................A-2
Uncrating the POWER MIG® 255XT ............................A-2
Location ........................................................................A-2
Input Power, Grounding and connection DiagramsA-2/A-4
Output polarity Connections ..........................................A-5
Gun and Cable Installation............................................A-5
Shielding Gas .........................................................A-6,A-7
Operation ..................................................................Section B
Safety Precautions .......................................................B-1
Product Description .......................................................B-2
Recommended Processes and Equipment...................B-2
Welding Capability.........................................................B-3
Limitations .....................................................................B-3
Description of Controls ..................................................B-3
Wire drive Roll ...............................................................B-3
Wire Size Conversion Parts ..........................................B-4
Procedure for Changing Drive Roll ...............................B-4
Wire Reel Loading ..................................................B-4,B-5
Mounting of 10 to 30 lbs. Spools ..................................B-5
To Start the Welder .......................................................B-6
Feeding Electrode .........................................................B-6
Idle Roll Pressure Setting..............................................B-7
Wire Drive Configuration .......................................B-8, B-9
Setting Run-in Speed ..................................................B-10
Operating Instructions for Timer Setting ............B-11, B-12
Making a Weld.............................................................B-13
Avoiding Wire Feeding Problems................................B-14
Fan Controls................................................................B-15
Input Line Voltage Protection ......................................B-15
Wire Feed Overload Protection...................................B-15
Welding Thermal Overload Protection ........................B-16
Overcurrent Protection ................................................B-16
Welding Procedure Information...................................B-16
Accessories ..............................................................Section C
Drive Rolls Kits..............................................................C-1
Aluminium Feeding Kit .................................................C-1
K363P Readi-Reel Adapter ...........................................C-1
Dual Cylinder Mounting Kit ..........................................C-1
Alternative Magnum GMAW Gun and Cable
Assemblies............................................................C-2
Magnum Gun Connection Kit .......................................C-2
Spool Gun ....................................................................C-3
Connecting the Spool Gun............................................C-3
Making a Weld with the Spool Gun Adapter Kit and
Spool Gun Installed.......................................C-4, C-5
Magnum SG Spool Gun ........................................C-5, C-6
Magnum 250LX Push-Pull
and Push-Pull Adapter .................................C-7, C-8, C-9