Lincoln Electric IM610-A Machine SET UP for the SELF-SHIELDED Fcaw Process, Vertical-down Welding

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B-12

LEARNING TO WELD

B-12

PROPER GUN ANGLE

PROPER GUN ANGLE

FOR GMAW PROCESS

FOR FCAW PROCESS

WELDING IN THE VERTICAL UP POSITION

WELDING IN THE VERTICAL UP POSITION

FIGURE B.16

Vertical-down Welding

Refer to Figure B.17 Vertical-down welds are applied at a fast pace. These welds are therefore shallow and narrow and, as such, are excellent for sheet metal. Vertical-down welds may be applied to 5/32” (3.9 mm) and lighter material.

Use stringer beads and tip the gun in the direction of travel so the arc force helps hold the molten metal in the joint. Move as fast as possible consistent with desired bead shape.

The important thing is to continue lowering the entire arm as the weld is made so the angle of the gun does not change. Move the electrode wire fast enough that the slag does not catch up with the arc. Vertical-down welding gives thin, shallow welds. It should not be used on heavy material where large welds are required.

MACHINE SET UP FOR THE SELF-SHIELDED FCAW PROCESS

1.See PROCESS GUIDELINES in the OPERATION section for selection of welding wire and shielding gas, and for range of metal thicknesses that can be welded.

2.See the Application Guide on the inside of wire feed section door for information on setting the controls.

3.Set the “Voltage” and “Wire Speed” controls to the settings suggested on the Application Guide for the welding wire and base metal thickness being used. The voltage control is marked “V” and the wire feed speed is marked ʻʼolo.ʼʼ

4.Check that the polarity is correct for the welding wire being used. Set the polarity for DC(–) when welding with NR-211-MP Innershield electrode. See Work Cable Installation in the INSTALLATION section for instructions on changing polarity.

5.When using Innershield electrode, the gasless noz- zle may be used instead of a gas nozzle to improve visibility of the arc.

6.Connect work clamp to metal to be welded. Work clamp must make good electrical contact to the work piece. The work piece must also be grounded as stated in the “Arc Welding Safety Precautions” at the beginning of this manual.

WELDING TECHNIQUES FOR THE SELF-

SHIELDED FCAW PROCESS

Four simple manipulations are of prime importance when welding. With complete mastery of the four, welding will be easy. They are as follows:

1. The Correct Welding Position

Figure B.18 illustrates the correct welding position for right handed people. (For left handed people, it is the opposite.)

 

Hold the gun (of the gun and cable assembly) in

 

your right hand and hold the shield with your left

FIGURE B.17

hand. (Left handers simply do the opposite.)

 

When using the FCAW Process, weld from left to right (if you are right handed). This enables you to clearly see what you are doing. (Left handers do the opposite.) Tilt the gun toward the direction of travel holding the electrode at an angle as shown in Figure B.18.

SP-175 PLUS

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Contents SP-175 Plus California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a LʼArc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Installation Read entire installation section before starting Safety PrecautionsInstallation Identify and Locate ComponentsWork Cable Installation Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the SP-175 Plus GUN InstallationGAS Connection Input Connections Gas Solenoid Inlet Fitting Power Input CableElectrical Input Connection for Rated Output Line Cord ConnectionVolt Input Connection Operation Observe all safety information throughout this manualFumes and Gases can be dangerous Welding Sparks can cause fire or explosionDesign Features Advantages Controls and SettingsGeneral Description Welding CapabilityWelding Operations Wire LoadingSequence of Operation Wire Threading Friction Brake AdjustmentsMaking a Weld Shielding GasCleaning Tip And Nozzle Changing Machine Over to Feed Other Wire SizesProcess Guidelines Overload Protection Wire Feed Overload ProtectionOutput Overload Thermal ProtectionLearning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCProcess Selection Gmaw MIG Welding ARCFor Gmaw MIG Process Joint Types and Positions Common MetalsFor Fcaw Innershield Process Butt WeldsPenetration Welding In The Vertical PositionFillet Welds Welding Techniques for the Self Shielded Fcaw Process Machine SET UP for the SELF-SHIELDED Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Welding Speed Correct Electrical Stickout ESOPractice Helpful HintsWelding Techniques for the Gmaw MIG Process Machine SET UP for the Gmaw MIG ProcessFigure B.24 To Correct Poor Penetration in order of impor- tance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead in order of importance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Optional Accessories AccessoriesK1799-1 Argon-Mixed Gas Adjustable Regulator and Hose Kit K586-1 Deluxe Adjustable Gas Regulator Hose KitInnershield Fcaw Conversion Replacement PartsMaintenance Safety Precautions MaintenanceItems Requiring no Maintenance Routine and Periodic MAINTE- NanceConfiguration of Components in Wire Feeding System GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Changing the Contact TIPRoll onto the drive shaft SP-175 Plus Liner trim length Changing LinerFigure D.3 SP-125 Plus GUN Handle PartsHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Areas Symptoms MisadjustmentsGAS Flow Problems Welding Problems SP-175 Plus Wiring Diagram Code Wiring DiagramsPage New Lessons in Arc Welding How To Read Shop DrawingsNeed Welding Training? $700.00Precaucion Warnung
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