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Lincoln Electric IM931 manual Cause Course of Action, Contact your local Lincoln

Models: IM931

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E-3		TROUBLESHOOTING		E-3

	Observe all Safety Guidelines detailed throughout this manual

	PROBLEMS		POSSIBLE	RECOMMENDED
	(SYMPTOMS)		CAUSE	COURSE OF ACTION

Engine will not idle down to low		1. Idler switch in High idle position.
speed.
		2.	External load on welder or auxil-
			iary power.
		3.	Faulty PC board or idler sole-
			noid.

Engine will not go to high idle when		1. Poor work lead connection to
attempting to weld.			work.
		2.	"Contactor" switch is in wrong
			position.
		3.	Faulty PC board. Low idle speed
			set to low.

Engine will not go to high idle when		1. Auxiliary power load is less than
using auxiliary power.			100 watts.
		2. Faulty PC board.		If all recommended possible areas
		2. Faulty PC board.		of misadjustment have been
				checked and the problem persists,
				checked and the problem persists,
Engine does not develop full power.		1. Air filter clogged.		Contact your local Lincoln
Engine does not develop full power.		1. Air filter clogged.		Authorized Field Service Facility.
		2.	Fouled spark plugs.
		3.	Valves out of adjustment.

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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Lincoln Electric IM931 manual Cause Course of Action, Contact your local Lincoln

Contents

Ranger 250 LPG California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Section E Section DSection F SeriesTechnical Specifications Ranger 250 LPG K2336-2 InstallationMachine Specifications Ranger 250 LPG Engine K2336-2 Safety Precautions PRE-OPERATION Service FuelTighten by hand Remote Control Battery ConnectionOIL Engine Cooling SystemElectrical Connections Standby Power Connections Auxiliary Power ReceptaclesGND Connection of Ranger 250 LPG to PremisesConnection of LN-15 Wire Feeder to the Ranger 250 LPG Connection of Lincoln ELEC- Tric Wire FeedersConnection of LN-7 or LN-8 to the Ranger 250 LPG Across-The-Arc ModelConnection of Prince Spool Gun to the Ranger 250 LPG Connection of the LN-25 to the Ranger 250 LPGAdditional Safety Precautions Design FeaturesOperation General DescriptionWeld Mode Selector Switch Welding ControlsARC Control Engine Controls Stopping Welder OperationDuty Cycle 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 AIR PRE-CLEANER Service AIR Cleaner ServiceEngine OIL Change Engine OIL Refill CapacitiesSpark Plug Service AIR Filter Paper ElementSpark Plug Battery Maintenance Engine Adjustment Overspeed is HazardousCleaning the Battery Charging the BatteryGfci Receptacle Testing and RESET- Ting Procedure Welder / Generator MaintenanceHOW to USE Troubleshooting Guide TroubleshootingService Facility Persists,Contact your localLincoln Authorized Field Contact your local Lincoln Cause Course of ActionTroubleshooting Troubleshooting Diagrams Diagrams Diagrams Diagrams Diagrams Engine Welders /LN-8 Connection Diagram Diagrams Diagrams Diagrams Diagrams Diagrams Ranger 250 LPG Dimension PrintRanger 250 LPG Ranger 250 LPG Precaucion Warnung