Lincoln Electric SVM207-A Probes Reading, Auxiliary Windings, To test the 120 VAC winding

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F-16	TROUBLESHOOTING AND REPAIR	F-16

AUXILIARY AND FIELD WINDING TEST (continued)

FIGURE F.3 – RECEPTACLES AND LEADS

120 VAC GFCI RECEPTACLE		120/240 VAC 1 PHASE		480 VAC 3 PHASE
			RECEPTACLE	RECEPTACLE
Lead #3			Z	GND
Lead #3
RESET	TEST
Lead #5		Lead #6	Lead #3
Lead #5			Y	X

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TEST PROCEDURE

WARNING

ELECTRIC SHOCK can kill.

•Turn the machine OFF before working on equipment or making the meter connections. Do not touch electrically hot parts.

AUXILIARY WINDINGS

NOTE: The following tests can be made by carefully inserting the meter probes into the receptacles as indicated. If the probes do not make or maintain contact, the measurements can be made on the back of the receptacles or on the appropriate Circuit Breaker. See the Wiring Diagram.

To test the 120 VAC winding:

1.With the Voltmeter set to read AC Volts (use proper scale), place the probes in one of the 120VAC receptacles as shown in Figure F.3.

2.With the Output Control set at ‘10’, Start the engine and let it run in the HIGH idle mode.

To test the 240 VAC winding:

1.With the Voltmeter set to read AC Volts (use proper scale), place the probes in the 240VAC receptacle where shown in Figure F.3.

2.With the Output Control set at ‘10’, Start the engine and let it run in the HIGH idle mode.

3.The voltmeter should read 240 to 264 volts from lead #3 to lead #6.

4.Turn the engine OFF.

To test the 480 VAC 3 Phase winding:

1.With the Output Control set at ‘10’, Start the engine and let it run in the HIGH idle mode.

2.Set the voltmeter to the proper scale and check the voltage readings per the following table:

PROBES	READING

X to Y	480 to 520 VAC

Y to Z	480 to 520 VAC

X to Z	480 to 520 VAC

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3.	The voltmeter should read 120 to 132 volts from	3. Turn the engine OFF
3.	The voltmeter should read 120 to 132 volts from
	lead #3 to lead #5.
4.	Turn the engine OFF.
	RANGER® 3 PHASE

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Contents Ranger 3 Phase Safety Ranger 3 PhaseFumes and Gases Welding Cutting Précautions DE Sûreté Safety Methods of Reducing Emissions Mains Supply Master Table of Contents for ALL Sections Table of Contents Installation Section Auxiliary Power InstallationTechnical Specifications Ranger 3 Phase K2337-1 & K2337-2 Height Width Depth WeightSpark Arrester Safety PrecautionsMachine Grounding TowingVehicle Mounting PRE-OPERATION ServiceGasoline Can cause fire or explosionHigh Altitude Operation Welding Output CablesTotal Combined Length of Electrode and Work Cables Angle of OperationInstructions Gfci Duplex Receptacles Auxiliary PowerVolt 3 Phase Receptacle with Ground 120/240 Volt Dual Voltage ReceptacleAuxiliary Power While Welding Ground WireStandby Power Connections TABLE A.1 Simultaneous Welding and PowerConnection of Ranger 3 Phase to Premises Wiring Figure A.3Electrical Device USE with the Ranger 3 Phase USE These Devices with a Ranger 3 PhaseDevices Without Addi Tional Resistive Type Loads Table of Contents Operation Section GENERAL DESCRIPTION Engine SwitchOperation Welder Controls Function and OperationRange Switch Polarity SwitchRanger 3 Phase Approximate Fuel Consumption Control DialStick Constant Current Welding Wire Feed Welding Processes Constant VoltageWelding Process TIG Constant Current WeldingStick Auto Starting the Engine STARTING/SHUTDOWN InstructionsBREAK-IN Period Stopping the EngineTable of Contents Accessories Section Accessories K1745-1 Welding GAS Cylinder LPG Tank HolderStick WIRE FEEDRECOMMENDED EQUIPMENT TIGRanger 3 Phase Table of Contents Maintenance Section Maintenance Safety PrecautionsOIL Filter Change Gfci Receptacle Testing and RESET- Ting ProcedureAIR Cleaner and Other Maintenance Slip Rings Do not attempt to polish slip rings while engine is runningFram CA79 BatteryEngine Maintenance Parts KOHLER C23S CHAMPION RC12YCMAINTENANCED-5 Figure D.1 Major Component LocationRanger 3 Phase 1TABLE of CONTENTS-THEORY of Operation Section E-1 Theory of Operation General DescriptionEngine Components and Operation ROTOR, Stator & Control Circuits Figure E.2 ROTOR, Stator and Control CircuitsWeld Circuitry Figure E.2 Weld Circuitry1TABLE of Contents Troubleshooting and Repair F-1 Troubleshooting and Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Return to SectionDiagram Perform the Output Bridge Test Gram Wiring Wiring Diagram Troubleshooting and Repair Figure F.4 and/or the Wiring Rotor Voltage Test Procedure Test DescriptionMaterials Needed Test Procedure Rotor Voltage TestRotor Resistance Test TEST PROCEDURE Figure F.2 Slip RingsAuxiliary and Field Winding Test Auxiliary Windings To test the 480 VAC 3 Phase windingProbes Reading To test the 120 VAC windingFigure F.4 Control PC Board Field WindingRanger 3 Phase Output Rectifier Bridge Test Figure F.5 OUTPUT RECTIFIER + Meter Lead Meter ReadingToroid Test Toroid Test Charging Circuit Test Voltage Regulator AC Lead DC Lead Engine Throttle Adjustment Test Engine Throttle Adjustment Test Low Idle Adjustment SolenoidNut Housing Figure F.9 115VAC Supply Waveform High IDLE- no Load Scope Settings Normal Open Circuit Voltage Waveform 115 VAC SupplyHigh Idle no Load Output Control AT Maximum Typical DC Weld Output Waveform CV Mode Machine LoadedTypical DC Weld Output Waveform CC Mode Machine Loaded to 200 Amps AT 26 VDCTypical AC Weld Output Waveform Machine Loaded to 225 Amps AT 25 VDCAbnormal Open Circuit Weld Voltage Waveform CV Mode Abnormal Open Circuit DC Weld Voltage Waveform Normal Open Circuit Weld Voltage Waveform CV Mode Normal Open Circuit DC Weld Voltage Waveform CC Mode Normal Open Circuit AC Weld Voltage Waveform Ranger 3 Phase Brush Removal and Replacement Procedure Brush Removal and Replacement Procedure ProcedureBrush Assembly Bracket Bolts Ranger 3 Phase Printed Circuit Board Removal Replacement Procedure Printed Circuit Board Removal Figure F.10 Door RemovalOutput Rectifier Bridge Removal Replacement Procedure Output Rectifier Bridge Removal Figure F.11 OUTPUT RECTIFIERENGINE/ROTOR Removal and Replacement Procedure ENGINE/ROTOR Removal and Replacement Procedure Procedure Rotor Removal Procedure Figure F.13 Engine and Rotor Removed from StatorReassembly Procedure Retest After Repair Table of Contents Diagram Section Ranger 3-PHASE RaNGEr 3 phaSESchEmaTic cOmplETE machiNE l12259 L12259ElEcTrical DiaGramS