Lincoln Electric IM823-A manual Making a Weld

Page 25

B-10

 

OPERATION

B-10

 

 

 

 

 

 

MAKING A WELD

 

 

 

 

 

 

 

The serviceability of a product or structure utilizing the

 

 

 

LN™-15 wire feeder is and must be the sole responsi-

 

 

 

bility of the builder/user. Many variables beyond the

 

 

 

control of The Lincoln Electric Company affect the

 

 

 

results obtained in using the LN™-15 wire feeder.

 

 

 

These variables include, but are not limited to, welding

 

 

 

procedure, plate chemistry and temperature, weld-

 

 

 

ment design, fabrication methods and service require-

 

 

 

ments. The available range of the LN™-15 wire feed-

 

 

 

er may not be suitable for all applications, and the

 

 

 

builder/user is and must be solely responsible for

 

 

 

welding settings.

 

 

 

 

 

 

 

• Close the door on the LN™-15.

 

 

 

• Connect the work cable to the metal to be welded.

 

 

 

The work cable must make good electrical contact to

 

 

 

the work. The work must also be grounded as stated

 

 

 

in "Arc Welding Safety Precautions".

 

 

 

• Connect the LN™-15 electrode cable to the power

 

 

 

source for the polarity and process to be used.

 

 

 

Check that the appropriate power source settings

 

 

 

are made for the procedure to be used. (Refer to the

 

 

 

power source operating and connection instructions.)

 

 

 

• Place the LN™-15 conveniently near the work area

 

 

 

in a safe location to minimize exposure to weld spat-

 

 

 

ter and to avoid sharp bends in the gun cable.

 

 

 

• Connect the LN™-15 work clip to the work.

 

 

 

• Be sure the proper contact tip for the wire size being

 

 

 

used is in the gun.

 

 

 

• Turn on the welding power source, as well as the

 

 

 

shielding gas supply (if used.)

 

 

 

• Cut the electrode within approximately 3/8" (10mm)

 

 

 

of the end of the contact tip for solid wire and within

 

 

 

3/4" (19mm) of the extension guide for cored wire.

 

 

 

• Position the electrode over the joint. The end of the

 

 

 

electrode should be slightly off the work.

 

 

 

• Lower welding helmet, close the gun trigger and

 

 

 

begin welding. Hold the gun so the contact tip to

 

 

 

work distance gives the correct electrical stickout as

 

 

 

required for the procedure being used.

 

 

 

• To stop welding, release the gun trigger and the pull

 

 

 

the gun away from the work.

 

LN™-15 ACROSS THE ARC MODEL & (CE)

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Contents LN -15 Wire Feeder California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéSafety Safety Thank You Table of Contents Technical Specifications LN-15 K1870-1, K1870-2 CE InstallationLN-15 Across the ARC Model & CE Location Safety PrecautionsWork Clip Lead High Frequency ProtectionPower Source Connection Engine Drive Power Source ConnectionWeld Cable Connections Electrode ConnectionFigure A.1 GUN and Cable Assemblies Procedure to Install Drive Rolls and Wire GuidesElectrode Polarity ConnectionsFeeding Wire Electrode Operation Safety PrecautionsGeneral Description Across the ARC Model 83% ProcedureNormal POWER-UP Display LN-15 POWER-UP SequenceWelding Mode CV/CC Mode and WFS Units PREFLOW, Postflow and Burnback TimesSpring Tension ARM CV/CC ModeWFS Units Set the pressure arm as follows See Figure B.2aCold FEED/GAS Purge Switch Wire Drive ConfigurationFlow Meter Step Trigger Interlock SwitchSpindle Brake Shielding GAS ConnectionFigure B.3 Constant Current OperationFigure B.4 CC Wire Speed Setting Making a Weld Factory Installed Equipment AccessoriesOptional Equipment Routine Maintenance MaintenancePeriodic Maintenance Calibration SpecificationHOW to USE Troubleshooting Guide TroubleshootingRecommended Symptoms ProblemsAuthorized Field Service Facility Course of ActionYour local Lincoln Authorized Field Service FacilityFault Code Description Possible Adjustments Errors on the DisplayLN-15 Across the ARC Model DiagramsDiagrams G4053-5 Dimension PrintLN-15 Across the ARC Model & CE LN-15 Across the ARC Model & CE LN-15 Across the ARC Model & CE Precaucion Warnung
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