Lincoln Electric Pro-MIG 140 manual GUN Installation, GAS Connection, Work Cable Installation

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A-4

INSTALLATION

A-4

 

 

 

Work Cable Installation

Refer to Figure A.2.

1.Open the wire feed section door on the right side of the Pro-MIG 140.

2.Pass the end of the work cable that has the termi- nal lug with the smaller hole through the Work Cable Access Hole (1) in the case front.

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

4.For GMAW Only: Refer to Figure A.2. This is the appropriate configuration for the GMAW (MIG) 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. As delivered, the machine is connected for negative electrode polarity. To wire for negative polarity (required for the Innershield process), 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).

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FIGURE A.4

Connecting Gun Cable to the Pro-MIG 140

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 Pro- MIG 140 case front. Make sure the connector is all the way into the brass connector block. Unscrew the thumbscrew on the connector block a few turns if gun connector will not insert fully. Rotate the con- nector 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 terminal con- nector bushings located below 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 Pro-MIG 140, the switch must be a normally open, momentary switch. The terminals of the switch must be insulated from the welding circuit. Malfunction of the Pro-MIG 140 may result if this switch shorts to the Pro-MIG 140 welding output circuit or is common to any electri- cal circuit other than the Pro-MIG 140 trigger cir- cuit.

GUN INSTALLATION

As shipped from the factory, the Pro-MIG 140 is ready to feed .035" (0.9 mm) Innershield flux-cored wire. If

.023" – .025" (0.6 mm) solid wire is to be used, use the appropriate contact tip , diffuser and Nozzle.

GAS CONNECTION

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 Pro-MIG 140 refer to the ACCESSORIES section.

Pro-MIG 140

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Contents Pro-MIG ARC Rays can burn SafetyFor Electrically powered equipment Electric and MagneticWelding Sparks can cause fire or explosion Electric Shock can killCylinder may explode if damaged Fumes and Gases can be dangerousIii Please Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents for ALL Sections Installation Electric Shock can kill Safety PrecautionsIdentify and Locate Components If you have not already done so, unpack the Pro-MIGOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the Pro-MIG GUN InstallationWork Cable Installation GAS ConnectionFigure A.5 Code Requirements for Input Connections Input ConnectionsRequirements For Rated Output General Description Design FeaturesOperation Recommended ProcessesWelding Capability Controls and SettingsLimitations Welding Operations Wire LoadingSequence of Operation Friction Brake Adjustment Wire ThreadingProcess Guidelines Cleaning Tip And NozzleMaking a Weld Welding with Gmaw MIG Changing Machine Over to Feed Other Wire SizesOverload Protection Application Chart Optional Accessories AccessoriesK586-1 Deluxe Adjustable Gas Regulator Hose Kit Replacement Parts Innershield Fcaw ConversionMaintenance Safety Precautions MaintenanceRoutine Maintenance For Magnum 100L GUN GUN and Cable MaintenanceGun Cable Cleaning Contact Tips, Nozzles, and Gun TubesChanging the Contact TIP Component Replacement ProceduresChanging Drive Roll GUN Handle Parts Changing LinerLiner trim length Troubleshooting HOW to USE Troubleshooting GuideOutput Problems Problems Possible Symptoms CauseRecommended Course of Action GAS Flow Problems Problems SymptomsFeeding Problems Possible CauseContact your local Lincoln Authorized Field ServiceFacility Wiring Diagram DiagramsPara equipos Electricos SeguridadAdvertencia LOS Campos Electricos Y MagneticosEl Electrochoque puede causar la muerte La Botella de gas puede explotar si está dañada Los Humos Y Gases pueden ser peligrososPrecaución Registro En línea Del ProductoProducto Contenido Para Todas LAS Secciones Salida Nominal Dimensiones FísicasInstalación SalidaLea todo el manual antes de iniciar la instalación Precauciones DE SeguridadIdentifique Y Ubique LOS COM- Ponentes LA Descarga Eléctrica puede causar la muerteInclinacion Seleccion DEL Lugar AdecuadoEstibacion Instalacion DE LA Pinza DE TrabajoInstalacion DE LA Antorcha Conexión del Cable de la Antorcha a laPro-MIG Conexión DE GASFigura A.5 Requerimientos de capacidad de salida nominal Conexiones DE LA Energía DE AlimentaciónRequerimientos DEL Codigo Para Conexiones DE Entrada Descripción General OperaciónPrecauciones DE Seguridad Procesos RecomendadosLimitaciones Capacidad DE SoldaduraControles Y Programaciones Secuencia DE Operación DE Soldadura Colocación DEL AlambreAjuste DEL Freno DE Fricción Colocacion DEL AlambreCómo Realizar UNA Soldadura Figura B.7Sobrecarga de Salida Soldadura CON Gmaw MIGGas Protector Protección térmicaAjustes Sugeridos Para LA Soldadura Accesorios Accesorios OpcionalesConversión DE Innershield Fcaw Partes DE ReemplazoMantenimiento Mantenimiento DE RutinaLimpieza del Cable de la Antorcha Mantenimiento DE LA Antorcha Y EL CablePuntas de Contacto, Toberas y Tubos de Antorcha Cambiando LA Punta DE Contacto Procedimeintos Para EL REEM- Plazo DE ComponentesRodillo Impulsor QUE Cambia Cambio DE LA Guía DE Alambre Partes DE Manejo DE AntorchaLocalización DE Averías Cómo Utilizar a Guía DE Localización DE AveríasProblemas Posible Síntomas Causa Recomendado Línea DE ConductaTo con su facilidad autorizada Problemas DE AlimentaciónGAS Lincoln local del servicio deProblemas DE LA Soldadura Digrama Eléctrico Notas PRO-MIG PRO-MIG PRO-MIG Precaucion Warnung
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