Lincoln Electric SVM132-A Welding Guns Welding GUN Accessories, Constant Current Conversion Parts

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C-5

 

ACCESSORIES

C-5

 

 

 

 

 

 

 

WELDING GUNS

WELDING GUN ACCESSORIES

 

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INNERSHIELD GUNS

The K126 gun and cable assembly is recommended for most Innershield electrodes at up to 350 amps.

The K115 gun and cable assembly is recommended for up to 450 amps.

The K116 gun and cable assembly is recommended for up to 600 amps.

NOTE: LinconditionerTM guns are recommended for locations where smoke accumulation is a problem and conventional exhaust systems are ineffective. The available smoke removal type Innershield guns and vacuum units can be used in these locations. Instructions are shipped with the equipment.

SUBMERGED ARC GUNS

The K112 gun and cable assembly is recommended for welding up to 500 amps.

K70 FILLET GUIDE

The fillet guide is designed to help guide the K114 sub-arc gun so the operator can make more uniform horizontal fillet welds with less effort. It consists of a vertical plate roller guide and rear wheel assembly. Once the roller guide and rear wheel are adjusted, the weld is easily made by gently pushing the gun into the fillet. The operator does not have to constantly control the drag of the flux cone against the vertical plate or carefully watch the angle of the gun.

K110 HAND TRAVEL UNIT

The mechanized travel unit can be attached to the K114 sub-arc gun and is used to obtain controlled travel speeds ranging from 7 to 60 inches. Since the hand travel unit derives its control power from a mag- amp source, a K161 power pack is required for this mode of operation.

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The K113 gun and cable is recommended for use up to 600 amps.

The K114 gun and cable assembly is a 600 amp gun that includes a flux valve and receptacle for the K110 or K62.

K62 SQUIRTMOBILE

The Squirtmobile is a self-propelled trackless carriage that carries the K114 sub-arc gun on long welds for automatic welder economy without high fixture costs. To use the LN-8S or LN-8SE with the Squirtmobile, install the K161 mechanized travel power pack.

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GMAW GUNS

An expanding line of Magnum GMA gun and cable assemblies are available to allow welding with solid and cored electrodes using the GMAW process. See the appropriate Magnum literature for descriptions of the 100-500 ampere air cooled gun and cables that are available. Gun cable lengths range from 10 to 25 ft. (3.0 to 7.5 m) and feed electrode sizes 0.023 to 3/32 in. (0.6 to 2.4 mm).

NOTE: Magnum GMA welding guns require a K466-1 connector for use with an LN-8 wire feeder.

CONSTANT CURRENT

CONVERSION PARTS

To convert the LN-8N or LN-8NE for welding with a constant current power source, purchase a variable voltage PC board L5039, and constant current dial plate (M12230 for LN-8N and LN-8S models, M13148 for LN-8F models above code 7580).

LN-8

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Contents LN-8 Semiautomatic Wire Feeder LN-8 SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Installation LN-8 with K303 Electrode DiameterLN-8 with K377 LN-8 with K378LN-8N and LN-8NE Power Source ConnectionsTable A.1 Work Lead Specifications LN-8S and LN-8SE and Converted LN-8N and LN-8NE Power Source Selection Switch Variable Voltage PC BoardTable A.2 LN-8 Power Source Connection Diagrams Power Source Connection DiagramsSection TOC Installation TOC Figure A.5 Connection of LN-8 to R3S-250 and R3S-325 9A-9Figure A.6 Connection of LN-8 to DC-600 10A-10Power Source To LN-8 Input Cable Plug Control Cable LN-8 for Same Polarity Operation Shock Can Kill LN-8 for Opposite Polarity Operation14A-14 Figure A.10 for Power Sources Other than Lincoln ElectricInput Cable Connections Cable Clamp Conductor Electrode Wire Reel BasecontrolLN-8N and LN-8S LN-8NE and LN-8SEExtension Tube Connector Connections to Wire FeederLocking ScrewSELF-TAPPING Screw Hinge Handle Figure A.14 Wire Feeder Handle InstallationGUN and Cable Assemblies Handling ProceduresLN-8S and LN-8SE Continuous Flux Feed Submerged ARC GeneralOperation Controls and Their Functions Safety InstructionsConstant Current Controls Gouging SparksCurrent Controls Voltage Constant Voltage ControlsAvoiding Ground Lead Protector GLP Activation Circuit ProtectionFigure B.3 Wire Feed Rolls and Guide Tube Installation Wire Feed Rolls and Guide TubesSetting for CV or CC Power Sources Welding with a Constant Voltage Power SourceSlots Coil Reel Mounting a 50 or 60 lb CoilAdapter Wire Reel Loading K1524-1 Universal Wire Reel StandK363-P READI-REEL Adapter 12 in./300 mm Diameter or 14 lb 6 kg To Mount 10 to 44 lb 4.5 to 20 kg SpoolsInnershield Coils READI-REELS a K438 READI-REEL Adapter Must be UsedBrass Blocks Hand Crank ARM Feeding Electrode to the LN-8N or LN-8SFeeding Electrode to the LN-8NE or LN-8SE with Extension Slow Acceleration Starting Code 7926 and Above Flux Tank LoadingAccessories General Table C.1 LN-8 Wire Feeder AccessoriesK163 Undercarriage Requires K303, K377, or K378 K161 Mechanized Travel Power PackK178 Mounting Platform K58 Magnetic SeparatorReel Mounting Accessories Constant Current Conversion Parts Welding Guns Welding GUN AccessoriesLN-8 Table of Contents Maintenance Section MaintenanceRoutine Maintenance Periodic Maintenance Theory of Operation Table of Contents Theory of Operation SectionGeneral Description Power Input CircuitsFigure E.2 GUN Trigger and 1CR Contact Control Circuits GUN Trigger and 1CR Relay Contact Control CircuitsFuse Field Applied Later CYCLE, the SCR Output Is Decreased SCR Operation5E-5 LN-8 Troubleshooting and Repair Return to Return to Section TOC HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Troubleshooting & RepairProblems Symptoms Troubleshooting GuideFunction Problems Transformer Test Perform the 1CR Relay Test Feeding Problems Welding Problems LN-8 Electrical Sequence of Operation Figure F.1 LN-8 Electrical Sequence of Operation Test Description Trigger Transformer TestTrigger Transformer Test Internal Voltage Test Receptacle ConnectorCircuit Applied Breaker Control BoardTable F.1 Voltage Test Points Internal Voltage Test1CR Relay Test 1CR Relay Test Table F.2 Relay Test Terminal Connections 1CR Relay TestDrive Motor Test Drive Motor Test 1CR Figure F.6 GUN Terminal Jumper LocationsTable F.3 Drive Motor Test Points To further check the drive motorPotentiometer Replacement Repair Procedure Circuit Breaker Replacement Retaining NUT Ground Lead Protector Switch Mount Flatwasher Lockwasher NUTGround Lead Protector Push Button Switch Replacement Ground Lead Protector Push Button Trigger Transformer Replacement Insulation Sheet Trigger Transformer NUT Relay PC Board Roundhead ScrewPC Board Replacement Control PC Board Variable Voltage PC Board Relay PC Board Figure F.10 PC Board LocationsRelay Board Removal Control PC Board Replacement Wire Drive Assembly and Component Replacement White BlackGreen Ground Yellow Blue TWO#568 #567 ShuntGearbox Insulation Sheet Mounting Plate MotorTOC Retest After Repair Electrical Diagrams LN-8N, -8NE, -8S, and -8SE Wiring Diagram Source Power to Work Connection Schematic1CR Wire Feed Motor Field Operating SchematicControl Board L5767 Schematic Variable Voltage Board L5039 Schematic Control Control Board L5767 LayoutVariable Voltage Board L5039 Layout SVM Error Reporting Form
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