Lincoln Electric IM10031-A manual Wire Drive Configuration, Changing the GUN Receiver bUSHING

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A-5

INSTALLATION

A-5

 

 

 

WIRE DRIVE CONFIGURATION

(See Figure A.2)

CHANGING THE GUN RECEIVER bUSHING

WARNING

ELECTRIC SHOCK can kill.

Turn the input power OFF at the welding power source before instal- lation or changing drive rolls and/or guides.

Do not touch electrically live parts.

When inching with the gun trigger, electrode and drive mechanism are "hot" to work and ground and could remain energized several sec- onds after the gun trigger is released.

Do not operate with covers, panels or guards removed or open.

Only qualified personnel should perform mainte- nance work.

------------------------------------------------------------------------

Tools required:

• 1/4" hex key wrench.

Note: Some gun bushings do not require the use of the thumb screw.

1.Turn power off at the welding power source.

2.Remove the welding wire from the wire drive.

3.Remove the thumb screw from the wire drive.

4.Remove the welding gun from the wire drive.

5.Loosen the socket head cap screw that holds the connector bar against the gun bushing.

Important: Do not attempt to completely remove the socket head cap screw.

6.Remove the outer wire guide, and push the gun bushing out of the wire drive. Because of the pre- cision fit, light tapping may be required to remove the gun bushing.

7.Disconnect the shielding gas hose from the gun bushing, if required.

FIGURE A.2

8.Connect the shielding gas hose to the new gun bushing, if required.

9.Rotate the gun bushing until the thumb screw hole aligns with the thumb screw hole in the feed plate. Slide the gun receiver bushing into the wire drive and verify the thumb screw holes are aligned.

10.Tighten the socket head cap screw.

11.Insert the welding gun into the gun bushing and tighten the thumb screw.

PROCEDURE TO INSTALL DRIVE ROLLS AND WIRE GUIDES

WARNING

Turn the input power OFF at the welding power source before instal- lation or changing drive rolls and/or guides.

Do not touch electrically live parts.

When inching with the gun trigger, electrode and drive mechanism are "hot" to work and ground and could remain energized several sec- onds after the gun trigger is released.

Do not operate with covers, panels or guards removed or open.

Only qualified personnel should perform mainte- nance work.

------------------------------------------------------------------------

1.Turn power off at the welding power source.

2.Release the idle roll pressure arm.

3.Remove the outer wire guide by turning the knurled thumbscrews counter-clockwise to unscrew them from the feed plate.

4.Rotate the triangular lock and remove the drive rolls.

THUMB SCREW

GUN RECEIVER BUSHING

OUTER WIRE GUIDE

CONNECTOR BLOCK

SOCKET HEAD

CAP SCREW

LOOSEN TIGHTEN

5.Remove the inner wire guide.

6.Insert the new inner wire guide, groove side out, over the two locating pins in the feed plate.

7.Install a drive roll on each hub assembly secure with the triangular lock.

8.Install the outer wire guide by aligning it with the pins and tightening the knurled thumbscrews.

9.Close the idle arm and engage the idle roll pressure arm. Adjust the pressure appropriately.

LN-25™ PRO

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Contents LN-25 Tmpro Safety California Proposition 65 WarningsElectric Shock can kill Welding and Cutting Sparks can Cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcElectromagnetic Compatibility EMC Methods of Reducing Emissions Mains Supply On-Line Product Registration ViiPlease Examine Carton and Equipment For Damage Immediately TAbLE of Contents Wire SIzES InstallationTechnical Specifications LN-25 PRO K2613-1, K2613-2 LN-25 PROHigh Frequency Protection Safety PrecautionsLocation Weld CAbLE SIzEWire Feeder 3INSTALLATIONA-3Power Source Analog Control CAbLE K1797-xxShielding GAS Connection Function Pin WiringCAbLE Connections Changing the GUN Receiver bUSHING Wire Drive ConfigurationProcedure to Install Drive Rolls and Wire Guides GUN Connection Pressure ARM AdjustmentLoading Spools of Wire Fe, CrNiDescription Power Source to LN-25 PROAcross the ARC SET-UPS Figure A.7 9INSTALLATIONA-9 Figure A.9Safety Precautions OperationGeneral Description Case Front Controls See Figure b.1 Figure b.1Minimum Arc Volts Maximum WFS Wire Feed Speed KNObWire Feed Speed, CV Operation Extra TorquePolarity LED Internal Controls Figure b.2Cold Feed PUSHbUTTON Step Trigger Interlock SwitchInternal Controls Description Step TriggerConstant Current Wire Welding Figure b-3Itemdescription Rear ControlsFlow Meter POWER-UP SequenceGAS Purge PUSHbUTTON Liter/MinDrive Roll Kits AccessoriesFactory Installed Equipment Electrode SIzEOn at all times Accessories K1500-5 Gun Receiver Bushing compatible Installation of the K590-6 Water Cooling KIT Periodic Maintenance MaintenanceRoutine Maintenance CALIbRATION SpecificationModel gearing Wire Feed Speed ValidationTo change the wire feed speed calibration See Figure D.2 BOARD LN-25 PROTROUbLESHOOTING Electric Shock can killPOSSIbLE PRObLEMSSymptoms Cause Recommended Course of ActionTROUbLESHOOTING Diagrams Enhanced DiagramDimension Print Precaucion Warnung