Engine Throttle Adjustment | Lincoln Electric SVM103-C specs

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F-10		TROUBLESHOOTING				F-10
		TROUBLESHOOTING

	TROUBLESHOOTING GUIDE - Observe all Safety Guidelines detailed throughout this manual

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

		WELDING PROBLEMS

The welding arc is “cold.” The		1. Check for loose or faulty con-	1.	Check for the correct open cir-
engine runs normally (3700 RPM,		nections at the weld output		cuit voltage (OCV) at the welder
no load). Auxiliary power is func-		terminals and welding cable		output terminals – 62 VAC is
tioning normally.		connections.		normal.
		2. The welding cable may be too		If the correct voltage is present
		long or coiled, causing an exces-		at the output terminals, check for
		sive voltage drop.		loose connections on the heavy
				current-carrying leads inside the
				POWER-ARC 4000. See the
				Wiring Diagram.
			2.	If the OCV is low at the welder
				output	terminals,	perform
				Engine Throttle Adjustment
				Test .
			3.	Check for shorted or grounded
				windings in the reactor (L1) and
				also in	the main	stator.
				See the Wiring Diagram.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact the Lincoln Electric Service Department for technical troubleshooting assistance before you proceed. Call 1-800-833-9353

POWER-ARC 4000

Image 58

Lincoln Electric SVM103-C service manual Engine Throttle Adjustment

Contents

POWER-ARC Safety Depends on You Safety California Proposition 65 Warnings Electric Shock can kill Welding Sparks can cause fire or explosion Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications POWER-ARC Location and Ventilation Safety PrecautionsStoring PRE-OPERATION Engine Service Spark Arrester Cert. Kool Bore Cable Size for Electrical Output ConnectionsWelding Cable Connections 125 amp Machine Grounding Auxiliary Power ReceptaclesPlugs and HAND-HELD Equipment Premises Wiring Circuit Breakers These Devices Without POWER-ARC Table of Contents Operation Section Operating Instructions Safety InstructionsOperation General Description Recommended Applications Operational Features and ControlsDesign Features Advantages Welding Capability Controls and Settings GENERATOR/WELDER Controls Gasoline Engine Controls 20 AMP, 120 Volt Duplex Receptacle Before Starting the Engine Engine OperationStarting the Engine For a HOT Engine Generator Operation To USE the Generator AS AN Auxiliary Power SupplyGeneral Information Table B.1 Generator Power Applications Suggested Power Applications Running Watts Start-up Watts Welding Operation Welding Guidelines Table B.2 Welding APPLICATIONS/ELECTRODE Selection Guide Operation What Happens in the Arc? Correct Welding Position Correct Arc Length Do the following PracticeUse the following Butt Welds Fillet Welds Penetration Vertical-Up Welding Vertical-Down Welding Hardfacing To Reduce Wear Overhead WeldingWelding Sheet Metal Welding Cast Iron Cast Iron Plate Preparation Out-of-Position Group AWS E6011 High-Speed Group AWS E6013Low Hydrogen Group Stable-Arc E7018 Table of Contents Accessories Section OPTIONS/ACCESSORIES AccessoriesLincoln Electric Accessories Table of Contents Maintenance Section Engine Maintenance MaintenanceRoutine and Periodic Maintenance Engine Adjustments Figure D.2 Clean Rotating SCREEN/FINGER GUARD/DEBRIS Guard Table D.1 Engine Maintenance Schedule GENERATOR/WELDER Maintenance Do not attempt to polish slip rings while engine is running Figure D.6. Major Component Locations Table of Contents Theory of Operation Section Theory of Operation ENGINE, EXCITATION, Rotor and Stator Rotor Field Feedback and Auxiliary Power Figure E.3 Field Excitation and Auxiliary Power Auxiliary Power Overcurrent Protection Weld Winding and Reactor Table of Contents Troubleshooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting Guide Troubleshooting Output Problems Electric Authorized Field Ser Or contact your local LincolnVice Facility Field Service Facility Local Lincoln Electric Authorized Troubleshooting Rotor Resistance Test Engine Problems Troubleshooting Engine Throttle Adjustment Test Description This procedure takes approximately 15 minutes to performRotor Voltage Test Materials Needed Test Procedure Rotor Voltage Test This procedure takes approximately 25 minutes to perform Rotor Resistance Test Rotor Resistance Test Figure F.3 Brushes Retained with Cable TIE Engine Throttle Adjustment Test This procedure takes approximately 20 minutes to perform Frequency Counter Method Strobe-tach MethodOscilloscope Method Wing NUT High Speed Stop Screw Normal Open Circuit Weld Voltage Waveform Scope SettingsHigh Idle no Load Normal Open Circuit Voltage Waveform 115 VAC Supply Machine Loaded Typical Weld Output WaveformMachine Loaded to 125 Amps AT 23 VAC Brush Removal and Replacement Description Brush Removal and Replacement Procedure Procedure Rheostat Removal and Replacement Figure F.7 Rheostat Removal Capacitor AND/OR Diode Bridge Removal and Replacement This procedure takes approximately 35 minutes to perform Procedure Capacitor Removal and REPLACE- Ment Figure F.8 Location and Discharging the Field Capacitor Procedure Field Diode Bridge Removal and Replacement Figure F.8A Field Diode Bridge Location This procedure takes approximately 3 hours to perform STATOR/ROTOR Removal and ReplacementInstructions STATOR/ROTOR Removal and Replacement Troubleshooting & Repair Rotor Removal Procedure Figure F.12 Checking ROTOR-STATOR AIR GAP Engine Output Auxiliary Power Receptacle OUTPUT1Retest After Repair WELDER/GENERATOR OUTPUT1 Return to Section TOC Table of Contents Diagrams Section Diagrams Wiring Diagram Power ARC DIAGRAMSG-3 DIAGRAMSG-4 Dimension Print Power ARC Return to Section TOC SVM Error Reporting Form