Lincoln Electric GX 271 specifications Stick Welding, Pipe Welding, TIG Welding

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B-7

OPERATION

B-7

 

 

 

When the triggering device is pressed the contactor is closed and the welding terminals are “Hot.”

When the triggering device is released the contactor is opened and the welding terminals are “Cold.”

“MODE” Switch - Set to the desired process: STICK/TIG, PIPE, or WIRE FEED.

“WIRE FEEDER VOLTMETER” Switch - If using a wire feeder that has a voltmeter, set this switch to match the polarity of the electrode.

STICK WELDING

The GX-271 can be used with a broad range of DC stick electrodes. The output “CONTROL” adjusts the full range of 20 to 300 amps. Set the “ARC CON- TROL” to low setting to minimize spatter. If sticking is a problem, turn this control to a higher setting (clock- wise). This will increase the short circuit current (arc force).

PIPE WELDING

The “PIPE WELDING” mode is recommended for manual vertical-down techniques on pipe joints using EXX10 type electrodes. This slope controlled setting allows the operator to control the welding current by changing the arc length.

The “ARC CONTROL” (arc force) is automatically switched off in this mode.

TIG WELDING

The GX-271 can be used in a wide variety of DC Tungsten Inert Gas (TIG) welding applications. When used with the K930-1 or -2 TIG module, ratings are limited to 275A at a 60% duty cycle and 250A at a 80% duty cycle.

GX-271 settings when using the K930-1 or -2 Tig Module:

a.Set the “MODE” Switch to the STICK/TIG setting.

b.Set the “IDLER” Switch to the “AUTO” position.

c.Set the “LOCAL/REMOTE” switch to the “REMOTE” position.

d.Set the ”WELDING TERMINALS” switch to the

“WELDING TERMINALS REMOTELY CON- TROLLED” position. This will keep the “Solid State” contactor open and provide a “cold” elec- trode until the triggering device (Amptrol or Arc Start Switch) is pressed.

e.Set the “ARC CONTROL” to minimum.

See Table B.2 for Typical Current Ranges for Tungsten Electrodes.

GX 271 Chopper

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Contents RED-D-ARC California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Vii Height Width Depth Weight InstallationInstallation Installation Instructions Lifting PRE-OPERATION Engine ServiceAdditional Safety Precautions High Altitude OperationSpark Arrester Battery ConnectionsFuel MufflerWelding Cable Connections Electrical ConnectionsTotal Combined Length of Electrode and Work Cables Machine GroundingCircuit Breakers Auxiliary Power RECEPTACLES, PLUGS, and HAND-HELD EquipmentPremises Wiring Table A.1 Connection of GX-271 to Premises WiringOperating Instructions Safety InstructionsDesign Features OperationLimitations Additional Safety PrecautionsRecommended Applications Figure B.1 Output Panel Controls WELDER/GENERATOR Controls Controls and SettingsStarting the Engine Engine OperationBefore Starting the Engine Table B.1 Typical GX-271 Fuel Consumption Stopping the EngineLocal Welding OperationWelder Controls Function and Operation ARC ControlTIG Welding Stick WeldingPipe Welding Table B.2 Typical Current Ranges 1 for Tungsten ELECTRODES2 Wire WeldingUsed Switch Table B.3 Summary of Welding Processes and Machine SettingsSimultaneous Welding and Power Loads Auxiliary PowerTable B.4 GX-271 Simultaneous Welding and Power Loads TIG Welding Options Accessories AccessoriesGeneral Options Accessories Semiautomatic Fcaw and MIG Welding Options / Accessories Accessories Connection Diagrams Accessories Connection Diagrams Accessories Connection Diagrams Accessories Connection Diagrams GX271 Engine Maintenance Parts Table D.1 MaintenanceSafety Precautions Routine and Periodic Engine MaintenanceTable D.2 Honda Engine Maintenance Schedule Table D.3 Kohler Engine Maintenance ScheduleTable D.4 Engine OIL Refill Capacities AIR Cleaner ServiceChanging the Engine OIL Table D.5 OIL Filter Tightening TorquesKohler Engine Spark Plug ServiceTable D.6 Spark Plug Installation Specifications Cleaning the Battery Fuel Filter ServiceEngine Adjustments Battery MaintenanceServicing Optional Spark Arrestor Welder / Generator MaintenanceCleaning Brush Removal and ReplacementHOW to USE Troubleshooting Guide 1TROUBLESHOOTINGE-1Troubleshooting Field Service Facility for technical No welding power output Welding Terminals switch 789 $ % Diagrams Precaucion Warnung
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