Lincoln Electric IM536-D manual GUN Installation, GAS Connection

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A-4

 

INSTALLATION

 

 

 

 

 

 

 

 

3.Route the cable under and around the back of the Wire Feed Gearbox (6).

4.For GMAW Only: Refer to Figure A.2. As deliv- ered, the SP-125 Plus is wired for positive polarity. This is the appropriate configuration for the Gas Metal Arc Welding (GMAW) process. To complete installation, use the provided wing nut to connect the work cable’s terminal lug to the negative (–) output terminal (5) located above the Wire Feed Gearbox (6). Make sure that both wing nuts are tight.

5.For Innershield Only: Refer to Figure A.4. To wire for negative polarity, connect the short cable attached to the connector block (1) to the negative

(–) output terminal (2) and the work cable (3) to the positive (+) terminal (4).

 

FIGURE A.4

4

3

2

1

GUN INSTALLATION

As shipped from the factory, the SP-125 Plus gun is ready to feed 0.023 - 0.025” (0,6 mm) wire. If 0.030” (0,8 mm) wire is to be used install the 0.030” (0.8 mm) contact tip. Refer to the MAINTENANCE section for contact tip installation details.

Connecting Gun Cable to the SP-125 Plus

1.Refer to Figure A.2. Unplug the machine or turn power switch to the off “O” position.

2.Pass the insulated terminals of the gun trigger con- trol leads, one at a time, through the Gun Cable and Control Lead Access Slot (2) in the case front. The leads are to be routed under the Wire Feed Gearbox (6) and through the Cable Hanger (7) on the inner panel.

3.Insert the connector on the gun conductor cable through the Gun Cable Access Hole (2) in the SP- 125 Plus case front. Make sure the connector is all the way in the metal connector block to obtain proper gas flow. Rotate the connector so control leads are on the underside and tighten the Thumbscrew (8) in the connector block.

4.Connect the gun trigger control lead terminals to the two insulated 1/4" (6,4 mm) tab connector bushings located above the “Gun Trigger Connection” decal in the wire feed section (4). Either lead can go to either connector. Form the leads so that they are as close as possible to the inside panel.

CAUTION

If the gun trigger switch being used is other than that supplied with the SP-125 Plus, the switch must be a normally open, momentary switch. The terminals of the switch must be insulated from the welding circuit. Malfunction of the SP-125 Plus will result if this switch shorts to the SP-125 Plus welding output circuit or is common to any electri- cal circuit other than the SP-125 Plus trigger circuit.

GAS CONNECTION

Refer to Figure A.5

When using the GMAW process, a cylinder of shield- ing gas, must be obtained. For more information about selecting gas cylinders for use with the SP-125 Plus, refer to the ACCESSORIES section.

WARNING

CYLINDER may explode if dam- aged. Keep cylinder upright and chained to support

• Keep cylinder away from areas where it may be damaged.

•Never lift welder with cylinder attached.

•Never allow welding electrode to touch cylinder.

•Keep cylinder away from welding or other live electrical circuits.

SP-125 PLUS

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Contents SP-125 Plus Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Vii Installation Safety Precautions Identify and Locate ComponentsElectric Shock can kill Work Clamp Installation Work Cable InstallationSelect Suitable Location StackingGUN Installation Connecting Gun Cable to the SP-125 PlusGAS Connection Gas Solenoid Inlet Fitting Power Input Cable Input ConnectionsCode Requirements for Input Connections Requirements For Rated OutputRequirements For Maximum Output Requirements For CSA Rated OutputObserve all safety information throughout this manual OperationFumes and Gases can be dangerous Welding Sparks can cause fire or explosionControls and Settings Design Features AdvantagesGeneral Description Welding CapabilityWire Loading Welding OperationsSequence of Operation Friction Brake Adjustments Wire ThreadingShielding Gas Making a WeldChanging Machine Over to Feed Other Wire Sizes Cleaning Tip And NozzleProcess Guidelines Wire Feed Overload Protection Overload ProtectionOutput Overload Thermal ProtectionLearning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCGmaw MIG Welding ARC Process SelectionFor Gmaw MIG Process Common Metals Joint Types and PositionsFor Fcaw Innershield Process Butt WeldsWelding In The Vertical Position PenetrationFillet Welds Machine SET UP for the SELF-SHIELDED Fcaw Process Welding Techniques for the SELF- Shielded Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Electrical Stickout ESO Correct Welding SpeedHelpful Hints PracticeMachine SET UP for the Gmaw MIG Process Welding Techniques for the Gmaw MIG ProcessFigure B.24 Troubleshooting Welds To Eliminate a Ropy Convex Bead in order of importanceTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Accessories Optional AccessoriesK1799-1 Argon-Mixed Gas Adjustable Regulator and Hose Kit K586-1 Deluxe Adjustable Gas Regulator Hose KitReplacement Parts Innershield Fcaw ConversionMaintenance Maintenance Safety PrecautionsItems Requiring no Maintenance Routine and Periodic MAINTE- NanceGUN and Cable Maintenance Configuration of Components in Wire Feeding SystemFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging the Contact TIP Changing Drive RollChanging Liner Liner trim length for gun with red trigger Magnum 100LGUN Handle Parts Figure D.3 SP-125 PlusTroubleshooting HOW to USE Troubleshooting GuideTroubleshooting Guide Problems Possible Areas Symptoms MisadjustmentsRecommended Course of Action Feeding Problems Welding Problems Wiring Diagrams SP-125 PlusSP-125 Plus SP-125 Plus How To Read Shop Drawings New Lessons in Arc WeldingNeed Welding Training? $700.00Precaucion Warnung
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