MAINTENANCED-3, Changing Drive Roll | Lincoln Electric IM546

MAINTENANCED-3

CHANGING DRIVE ROLL

The drive roll has two grooves; one for .023"

–.025" (0.6 mm) solid steel electrode and a larger knurled groove for .030" (0.8 mm) solid and .035" (0.9 mm) flux-cored steel electrode. As shipped, the drive roll is installed in the .030"/.035" (0.8/0.9 mm) position.

If .023" – .025" (0.6 mm) wire is to be used, the drive roll must be reversed as follows:

1.Connect the machine to its rated input power per instructions in Installation sec- tion.

2.Release the spring-loaded pressure arm and lift the idle roll arm away from the drive roll.

3.Turn the power switch to ON (marked “I”).

4.Set the wire speed to minimum and jog the drive unit with the trigger switch until the drive roll set screw is facing up.

CAUTION

When inching the welding wire, the drive rolls, gun connector block, and gun con- tact tip are energized relative to work and ground and remain energized for several seconds after the gun trigger is released.

5.Turn the power switch to OFF (marked “O”).

6.Loosen the drive roll set screw with the 5/64" (2.0 mm) hex wrench supplied.

7.Remove the drive roll, flip over and rein- stall with the .023 – .025" (0.6 mm) groove (the smaller groove) closest to the gearbox.

8.Push a length of straightened welding wire through the wire feeder guide tubes and adjust the position of the drive roll so that the groove is centered on the wire. Make certain the set screw is located on the flat portion of the shaft and tighten.

FIGURE D.1

3

	2
1	Wire size is stenciled on
	the ends of the drive roll.

WELD-PAK 100

Image 37

Lincoln Electric IM546 manual MAINTENANCED-3, Changing Drive Roll

Contents

WELD-PAK 100 Plus Safety Depends on You ARC Welding can be hazardous Safety Cylinder may explode if damaged Iii Electric and Magnetic Fields Sûreté Pour Soudage a LʼArc Précautions DE Sûreté Please Examine Carton and Equipment For Damage Immediately Master Table of Contents for ALL Sections Vii Technical Specifications WELD-PAK INSTALLATIONA-1 Safety Precautions 2INSTALLATIONIdentify and Locate Components Select Suitable Location INSTALLATIONA-3Output Connections Stacking GUN Installation 4INSTALLATIONWork Cable Installation Connecting Gun Cable to the WELD-PAK Figure A.5 INSTALLATIONA-5 Input Connections 6INSTALLATIONRequirements For Rated Output Code Requirements for Input Connections OPERATIONB-1 Observe all safety information throughout this manualFumes and Gases can be dangerous Welding Sparks can cause fire or explosion 2OPERATION OPERATIONB-3 Wire LoadingWelding Operations Sequence of Operation Wire Threading Friction Brake Adjustment4OPERATION OPERATIONB-5 Cleaning Tip And NozzleProcess Guidelines Making a Weld 6OPERATION Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Overload Protection Learning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARC Process Selection Gmaw MIG Welding ARCFor Gmaw MIG Process Common Metals Machine SET UP for the SELF-SHIELDED Fcaw ProcessWelding Techniques for the SELF- Shielded Fcaw Process For Fcaw Innershield Process Correct Welding Speed Correct Electrical Stickout ESO Helpful Hints Electrode Voltage Setting Wire Feed Speed ooPractice Back-Stepping Welding Techniques for the Gmaw MIG Process Machine SET UP for the Gmaw MIG Process Mild Steel Voltage Setting Wire Feed Speed ooElectrode Penetration Joint Types and PositionsButt Welds Fillet Welds Vertical-down Welding Welding In The Vertical Position To Eliminate a Ropy Convex Bead in order of importance Troubleshooting WeldsTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importance Proper Gun Handling Application Chart Optional Accessories ACCESSORIESC-1MIG Conversion 2NOTES Maintenance Safety Precautions MAINTENANCED-1Routine Maintenance GUN and Cable Maintenance 2MAINTENANCEComponent Replacement Procedures For Magnum 100L GUN Changing Drive Roll MAINTENANCED-3 Changing Liner 4MAINTENANCELiner trim length GUN Handle Parts MAINTENANCED-5 6NOTES HOW to USE Troubleshooting Guide TROUBLESHOOTINGE-1 Troubleshooting Guide 2TROUBLESHOOTINGProblems Possible Areas Symptoms Misadjustments Recommended Course of Action Feeding Problems TROUBLESHOOTINGE-3 Welding Problems 4TROUBLESHOOTING Weldpak 100 Wiring Diagram Wiring Diagrams100 2NOTES Parts WELD-PAK 2PARTS Main Exploded Diagram Description Reqʼd 4PARTS Complete Drive ASSEMBLY/MOTOR PARTS5 Case Front Assembly 6PARTS RECTIFIER, FAN and Bracket Assembly PARTS7 Center Panel Assembly 8PARTS Magnum 100L Assembly Square Wave TIG Square Wave TIG New Lessons in Arc Welding How To Read Shop DrawingsNeed Welding Training? $700.00 Precaucion Guards off Superseded