Lincoln Electric IM931 manual Troubleshooting

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E-4	TROUBLESHOOTING	E-4

	Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

(SYMPTOMS)

POSSIBLE

CAUSE

RECOMMENDED

COURSE OF ACTION

	No welding power output.	1. Poor work lead connection to
			work.
		2.	"Weld Terminals" switch in
			wrong position.
		3.	Faulty PC board or welder alter-
			nator.

	Welder has output but no control.	1. Poor remote / control cable con-
			nection to 6-pin or 14-pin con-
			nector.
		2.	Faulty remote cable or faulty
			wire feeder or wire feeder cable.
		3.	Faulty control potentiometer or
			PC board.

	Wire feeder does not work when	1. Wire Feeder Power circuit
	control cable is connected to 14-		breaker open.
	pin connector.
		2.	Faulty control cable.
		3.	Faulty wire feeder.

	No auxiliary power.	1. Open circuit breakers.
		2.	Faulty connections to auxiliary
			receptacles.
		3.	GFCI tripped.
		4.	Faulty PC board or welder alter-
			nator.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

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 Fuel PRE-OPERATION ServiceTighten 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 DescriptionWelding Controls Weld Mode Selector SwitchARC Control Engine Controls Duty Cycle Welder OperationStopping Typical Ranger 250 LPG Fuel ConsumptionTIG Welding Wire WELDING-CVTypical Current Ranges 1 for Tungsten ELECTRODES2 ARC Gouging Auxiliary PowerRanger 250 LPG Extension Cord Length Recommendations T12153-9 50 AMP, 120/240V Power Plug AccessoriesRecommended Optional Equipment Engine Maintenance Components MaintenanceKohler Engine Engine OIL Change AIR Cleaner ServiceAIR PRE-CLEANER Service Engine OIL Refill CapacitiesAIR Filter Paper Element Spark Plug ServiceSpark 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 GuidePersists,Contact your local Service FacilityLincoln 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