Lincoln Electric Pro-MIG 140 manual Changing Liner, GUN Handle Parts, Liner trim length

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D-4	MAINTENANCE	D-4

Set Screw						Brass Cable
						Connector

Liner Assembly

(Liner bushing to be sealed tight against brass cable connector)

1-1/4 (31.8 mm) Liner Trim Length

Gas Diffuser

Gas Nozzle or Gasless Nozzle

FIGURE D.2

Liner trim length

CHANGING LINER

NOTICE: The variation in cable lengths prevents the interchangeability of liners. Once a liner has been cut for a particular gun, it should not be installed in anoth- er gun unless it can meet the liner cutoff length requirement. Refer to Figure D.2.

1.Remove the gas nozzle from the gun by unscrew- ing counter-clockwise.

2.Remove the existing contact tip from the gun by unscrewing counter-clockwise.

3.Remove the gas diffuser from the gun tube by unscrewing counter-clockwise.

4.Lay the gun and cable out straight on a flat surface. Loosen the set screw located in the brass connec- tor at the wire feeder end of the cable. Pull the liner out of the cable.

5.Insert a new untrimmed liner into the connector end of the cable. Be sure the liner bushing is stenciled appropriately for the wire size being used.

6.Fully seat the liner bushing into the connector. Tighten the set screw on the brass cable connector. At this time, the gas diffuser should not be installed onto the end of the gun tube.

7.With the gas nozzle and diffuser removed from the gun tube, be sure the cable is straight, and then trim the liner to the length shown in the Figure D.2. Remove any burrs from the end of the liner.

8.Screw the gas diffuser onto the end of the gun tube and securely tighten.

9.Replace the contact tip and nozzle.

GUN HANDLE PARTS

The gun handle consists of two halves that are held together with a collar on each end. To open up the handle, turn the collars approximately 60 degrees counter-clockwise until the collar reaches a stop. Then pull the collar off the gun handle. If the collars are diffi- cult to turn, position the gun handle against a corner, place a screwdriver against the tab on the collar and give the screwdriver a sharp blow to turn the collar past an internal locking rib. See Figure D-3.

Counter-clockwise

FIGURE D.3

Pro-MIG 140

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Contents Pro-MIG For Electrically powered equipment SafetyARC Rays can burn Electric and MagneticElectric Shock can kill Welding Sparks can cause fire or explosionCylinder may explode if damaged Fumes and Gases can be dangerousIii On-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents for ALL Sections Installation Identify and Locate Components Safety PrecautionsElectric Shock can kill If you have not already done so, unpack the Pro-MIGSelect Suitable Location Work Clamp InstallationOutput Connections StackingWork Cable Installation GUN InstallationConnecting Gun Cable to the Pro-MIG GAS ConnectionFigure A.5 Code Requirements for Input Connections Input ConnectionsRequirements For Rated Output Operation Design FeaturesGeneral Description Recommended ProcessesWelding Capability Controls and SettingsLimitations Welding Operations Wire LoadingSequence of Operation Wire Threading Friction Brake AdjustmentProcess 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 Innershield Fcaw Conversion Replacement PartsMaintenance Safety Precautions MaintenanceRoutine Maintenance Gun Cable Cleaning GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tips, Nozzles, and Gun TubesChanging the Contact TIP Component Replacement ProceduresChanging Drive Roll GUN Handle Parts Changing LinerLiner trim length HOW to USE Troubleshooting Guide TroubleshootingOutput Problems Problems Possible Symptoms CauseRecommended Course of Action Feeding Problems Problems SymptomsGAS Flow Problems Possible CauseContact your local Lincoln Authorized Field ServiceFacility Diagrams Wiring DiagramAdvertencia SeguridadPara equipos Electricos LOS Campos Electricos Y MagneticosEl Electrochoque puede causar la muerte Los Humos Y Gases pueden ser peligrosos La Botella de gas puede explotar si está dañadaPrecaución Registro En línea Del ProductoProducto Contenido Para Todas LAS Secciones Instalación Dimensiones FísicasSalida Nominal SalidaIdentifique Y Ubique LOS COM- Ponentes Precauciones DE SeguridadLea todo el manual antes de iniciar la instalación LA Descarga Eléctrica puede causar la muerteEstibacion Seleccion DEL Lugar AdecuadoInclinacion Instalacion DE LA Pinza DE TrabajoPro-MIG Conexión del Cable de la Antorcha a laInstalacion DE LA Antorcha Conexión DE GASFigura A.5 Requerimientos de capacidad de salida nominal Conexiones DE LA Energía DE AlimentaciónRequerimientos DEL Codigo Para Conexiones DE Entrada Precauciones DE Seguridad OperaciónDescripción General Procesos RecomendadosLimitaciones Capacidad DE SoldaduraControles Y Programaciones Colocación DEL Alambre Secuencia DE Operación DE SoldaduraColocacion DEL Alambre Ajuste DEL Freno DE FricciónFigura B.7 Cómo Realizar UNA SoldaduraGas Protector Soldadura CON Gmaw MIGSobrecarga de Salida Protección térmicaAjustes Sugeridos Para LA Soldadura Accesorios Opcionales AccesoriosPartes DE Reemplazo Conversión DE Innershield FcawMantenimiento DE Rutina MantenimientoLimpieza 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 Partes DE Manejo DE Antorcha Cambio DE LA Guía DE AlambreCómo Utilizar a Guía DE Localización DE Averías Localización DE AveríasRecomendado Línea DE Conducta Problemas Posible Síntomas CausaGAS Problemas DE AlimentaciónTo con su facilidad autorizada Lincoln local del servicio deProblemas DE LA Soldadura Digrama Eléctrico Notas PRO-MIG PRO-MIG PRO-MIG Precaucion Warnung