Lincoln Electric IM931 manual Connection of the LN-25 to the Ranger 250 LPG

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INSTALLATION

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Connection of the LN-25 to the RANGER 250 LPG

The LN-25 with or without an internal contactor may be used with the RANGER 250 LPG. See the appropriate connection diagram in Section F.

Note: The LN-25 (K431) Remote Control Module and (K432) Remote Cable are not recommended for use with the RANGER 250 LPG.

1.Shut the welder off.

2.For electrode Positive, connect the electrode cable from the LN-25 to the "+" terminal of the welder and work cable to the "-" terminal of the welder. For elec- trode Negative, connect the electrode cable from the LN-25 to the "-" terminal of the welder and work cable to the "+" terminal of the welder.

3.Attach the single lead from the front of the LN-25 to work using the spring clip at the end of the lead. This is a control lead to supply current to the wire feeder motor; it does not carry welding current.

4.Set the MODE switch to the "CV-WIRE " position.

5.Set the "WELD TERMINALS" switch to "WELD TER-

MINALS ON"

6.Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

7.Set the "IDLE" switch to the "AUTO" position. When not welding, the RANGER 250 LPG engine will be at the low idle speed. If you are using an LN-25 with an internal contactor, the electrode is not energized until the gun trigger is closed.

8.When the gun trigger is closed, the current sensing circuit will cause the RANGER 250 LPG engine to go to the high idle speed, the wire will begin to feed and the welding process started. When welding is stopped, the engine will revert to low idle speed after approximately 12 seconds unless welding is resumed.

Connection of LN-742, K487-25 Spool Gun, and Cobramatic to the RANGER 250 LPG

1.Shut the welder off.

2.Connect per instructions on the appropriate con- nection diagram in Section F.

Connection of Prince Spool Gun to the RANGER 250 LPG

Connection of the Prince XL Spool Gun requires the use of the K1849-1 Adapter Module.

1.Shut the Welder off.

2.For electrode Positive, connect the electrode cable to the "+" terminal of the welder and work cable to the "-" terminal of the welder. For electrode Negative, connect the electrode cable "-" terminal of the welder and work cable to the "+" terminal of the welder.

3.Connect the Control Cable of the Spool Gun to the Adapter Module and connect the Control Cable of the Adapter Module to the Welder.

4.Connect the Gas Hose.

5.Set the MODE switch to the "CV-WIRE " position.

6.Set the "WELD TERMINALS" switch to "WELD

TERMINALS ON"

7.Set the "ARC CONTROL" knob to "0" initially and adjust to suit.

8.Set the "IDLE" switch to the "High" position.

RANGER 250 LPG

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Contents Ranger 250 LPG 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 Table of Contents Section F Section DSection E SeriesInstallation Technical Specifications Ranger 250 LPG K2336-2Machine Specifications Ranger 250 LPG Engine K2336-2 Safety Precautions PRE-OPERATION Service FuelTighten by hand OIL Battery ConnectionRemote Control Engine Cooling SystemElectrical Connections Auxiliary Power Receptacles Standby Power ConnectionsConnection of Ranger 250 LPG to Premises GNDConnection of LN-7 or LN-8 to the Ranger 250 LPG Connection of Lincoln ELEC- Tric Wire FeedersConnection of LN-15 Wire Feeder to the Ranger 250 LPG Across-The-Arc ModelConnection of the LN-25 to the Ranger 250 LPG Connection of Prince Spool Gun to the Ranger 250 LPGOperation Design FeaturesAdditional Safety Precautions General DescriptionWeld Mode Selector Switch Welding ControlsARC Control Engine Controls Duty Cycle Welder OperationStopping Typical Ranger 250 LPG Fuel ConsumptionWire WELDING-CV TIG WeldingTypical Current Ranges 1 for Tungsten ELECTRODES2 Auxiliary Power ARC GougingRanger 250 LPG Extension Cord Length Recommendations Accessories T12153-9 50 AMP, 120/240V Power PlugRecommended Optional Equipment Maintenance Engine Maintenance ComponentsKohler Engine Engine OIL Change AIR Cleaner ServiceAIR PRE-CLEANER Service Engine OIL Refill CapacitiesSpark Plug Service AIR Filter Paper ElementSpark Plug Cleaning the Battery Engine Adjustment Overspeed is HazardousBattery Maintenance Charging the BatteryWelder / Generator Maintenance Gfci Receptacle Testing and RESET- Ting ProcedureTroubleshooting HOW to USE Troubleshooting GuideService Facility Persists,Contact your localLincoln Authorized Field Cause Course of Action Contact your local LincolnTroubleshooting Troubleshooting Diagrams Diagrams Diagrams Diagrams Diagrams Engine Welders /LN-8 Connection Diagram Diagrams Diagrams Diagrams Diagrams Diagrams Dimension Print Ranger 250 LPGRanger 250 LPG Ranger 250 LPG Precaucion Warnung
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