Lincoln Electric IM644-A manual Function Problems

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E-3			TROUBLESHOOTING			E-3

		Observe all Safety Guidelines detailed throughout this manual

	PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
	(SYMPTOMS)		MISADJUSTMENTS(S)	COURSE OF ACTION

FUNCTION PROBLEMS

Engine will not idle down to low	1.	Idler switch in High idle position.
speed.		Set switch to Auto.
	2.	External load on welder or auxil-
		iary power. Remove all external
		loads.

Engine will not go to high idle when	1.	Poor work lead connection to
attempting to weld.		work. Make sure work clamp is
		tightly connected to clean base
		metal.
	2.	”Welding Terminals” switch is in
		wrong position. Set to “Always
		On” when welding without a weld-
		ing terminal control cable. Refer
		to Operations chapter for proper
		use of this switch.

Engine will not go to high idle when	1.	Auxiliary power load is less than
using auxiliary power.		100 watts. Idler may not respond
		with less than a 100 watt load.
		Set Idler to “High”

Contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance.

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.

COMMANDER 500

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Contents Safety Depends on You CommanderCalifornia 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 F Section CSection D Section EBore x Stroke InstallationWelding Range Open Circuit Voltage Auxiliary Power1 HEIGHT2 Width Depth WeightStacking Safety PrecautionsLocation / Ventilation StoringTowing High Temperature OperationLifting High Altitude OperationFuel USE Diesel Fuel only PRE-OPERATION Engine ServiceEngine Cooling System Battery Connection OILWelding Terminals Remote ControlHigh Frequency Generators for TIG Applications Machine Grounding Auxiliary Power ReceptaclesStandby Power Connections Welding Output CablesPower Connection of LN-7 or LN-8 to the Commander Connection of Lincoln Electric Wire FeedersConnection of the LN-25 to the Commander Connection of AN LN-23P Wire Feeder to the Commander Operating Instructions Safety InstructionsDesign Features and Advantages OperationWelding Capability For Auxiliary PowerOther Features K1639-1 Commander 500 Standard ModelFuel Level Gauge and Light Controls and SettingsRUN- Stop Switch Start PushbuttonHour Meter Idler SwitchOIL Pressure Gauge K1639-2 Std., K1639-1 Opt. and Light Idler Operational exceptionsAuxiliary Power Controls Stopping the Engine Engine OperationStarting the Engine Stick Welding Welder OperationBREAK-IN Period Typical Fuel ConsumptionTable B.3 Typical Current Ranges 1 for Tungsten ELECTRODES2 Commander 500 Settings When Using the K799 HI-FREQ UnitCommander 500 Settings When Using the K930-1 TIG Module Simultaneous Welding and AUXIL- Iary Power Loads Auxiliary Power OperationWire Feed Constant Voltage WELD- ING Table B.4 Commander 500 Simultaneous Welding and Power Loads Recommended Optional Equipment AccessoriesOptional Field Installed Accessories Engine Maintenance MaintenanceRoutine and Periodic Maintenance Water Separator Element Fuel FiltersFuel PRE-FILTER/WATER Separator ASSEM- BLY Cooling System Cooling Blower Belt Battery HandlingBrush Removal and Replacement Nameplates / Warning Decals MaintenanceWelder / Generator Maintenance CleaningHOW to USE Troubleshooting Guide TroubleshootingCourse of Action SymptomsPossible Areas Function Problems Output Problems Commander 500 Wiring Diagram DiagramsConnection Diagram To Work Electrode Cable To Wire Feed Unit Commander / K867 / K775 / LN-7 Connection DiagramElectrode Cable Connection DiagramRemote Control To Wire Feed UnitCommander to K867 Adapter Connection Diagram Connection DiagramCommander / K867 / LN-8 Connection Diagram Remove the Three Screws Shown and USE PIN Amphenol To Work Commander / LN-8 Connection DiagramTo LN-8 Input Cable Plug K595 Control Cable To Work PIN Commander / K930 TIG Module / Connection Diagram To LN-742 Input Cable Plug K592 Control Cable Commander / LN-742 Connection Diagram24.97 Dimension Print$700.00 Basic CoursePrecaucion Aviso DE