Lincoln Electric SVM197-A 14TROUBLESHOOTING and REPAIRF-14, Rotor Voltage Test Procedure, Lead

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F-14TROUBLESHOOTING AND REPAIRF-14

ROTOR VOLTAGE AND FLASHING VOLTAGE TEST PROCEDURE

(continued)

ROTOR VOLTAGE TEST (continued)

FIGURE F.1 - LOCATION OF LEAD 200A FOR ROTOR VOLTAGE TEST

GROUND STUD

LEAD 200

CONNECTION

OUTPUT PANEL

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ROTOR VOLTAGE TEST PROCEDURE

1.With the 5/16” nut driver, remove the 8 sheet metal screws that hold the top cover to the control box. Remove the top cover.

2.Start the machine and run it at high idle. Set the output control (rheostat) at the MAXIMUM or GENERATOR setting.

3.Set the volt/ohmmeter at the DC position.

4.Place the positive probe on lead 200 where it connects at the back of the rheostat (the mid- dle wiper terminal). See Figure F.1 for location. Place the negative probe on the machine ground stud or any other good, unpainted ground.

5.Check the voltage reading on the volt/ohmmeter. It should read 45 - 48 VDC.

6.If the voltage is low or not present, the genera- tor field circuit is not functioning correctly. Proceed with Flashing Voltage Test Procedure. C1, R1, or D1 may also be faulty. See wiring diagram.

7.If rotor voltage is correct, the generator field is okay. Replace the top cover on the control box. Tighten the 8 sheet metal screws with the 5/16” nut driver.

FLASHING VOLTAGE TEST

PROCEDURE

8.With the machine running at high idle (3700RPM), the voltage from lead #205 (locat- ed at D2) to machine ground should be 1.5 to

2.0VAC. If this voltage is not present, check the continuity of lead #205 from the engine module to D2. See the wiring diagram. If the

1.5to 2.0 VAC is present, proceed to the next step.

9.With the machine running at high idle (3700RPM), the voltage from lead 202B (locat- ed at D2) to machine ground should be approx- imately 1.6 VDC. If this voltage is not present and the correct AC voltage is present at lead #205, then diode D2 may be faulty.

10.If the voltage readings are correct in the two prior steps, check the continuity of leads #202, #202B, #202A, #201, #201A and #201B. See the wiring diagram. Also check the brushes for good contact with the rotor slip rings.

11.Proceed with the Rotor Resistance Test.

POWERARC® 5500

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Contents Powerarc ISAFETYi Safety Electric Shock can kill ARC Rays can burnFor Electrically IiiPrécautions DE Sûreté Electromagnetic Compatibility EMC Safety Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications PowerarcStoring Safety PrecautionsLocation and Ventilation Engine Exhaust can killPRE-OPERATION Engine Service Spark Arrester PowerArc 5500 Typical Fuel ConsumptionMuffler Deflector Honda 9 HPWelding Cable Connections Powerarc 5500 Output ConnectionsElectrical Output Connections Cable Size and LengthPlugs and HAND-HELD Equipment Auxiliary Power ReceptaclesCable Installation Machine GroundingPremises Wiring Circuit BreakersTable A.2 Electrical Device USE with the Powerarc Type Common Electrical Devices Possible ConcernsPowerarc Table of Contents Operation Section Operation Output Panel Controls Controls and SettingsLimitations Physical Location of Components may vary by Code NoEngine Operation Gasoline Engine ControlsBefore Starting the Engine Starting the EngineGeneral Information Generator OperationStopping the Engine Running the EngineTable B.3 Generator Power Applications Welding Operation Control Function / Operation Current Control DialMaterial Thickness Electrode Type Size Setting Welding GuidelinesWhat Happens in the Arc? Welding circuit for Stick shielded metal arc weldingCorrect Arc Length Correct Welding PositionCorrect Way to Strike An Arc Correct Welding SpeedUse the following Common MetalsTypes of Welds Do the followingPenetration Welding in the Vertical PositionVertical-Up Welding Vertical-Down WeldingHardfacing To Reduce Wear How to Hardface the Sharp Edge Metal to Ground WearOverhead Welding Welding Sheet MetalWelding Cast Iron Cast Iron Plate PreparationLow Hydrogen Group AWS E7018 Selecting ElectrodesHigh-Speed Group AWS E6013 Out-of-Position Group AWS E6011Powerarc Table of Contents Accessories Section Lincoln Electric Accessories AccessoriesOPTIONS/ACCESSORIES Table of Contents Maintenance Section Engine Maintenance MaintenanceRoutine and Periodic Maintenance Engine Adjustments Figure D.3 Clean Rotating SCREEN/FINGER GUARD/DEBRIS GuardTable D.1 Engine Maintenance Parts Part Robin / Subaru HondaGENERATOR/WELDER Maintenance Do not attempt to polish slip rings while engine is runningFigure D.6. Major Component Locations 1TABLE of CONTENTS-THEORY of Operation Section E-1 ENGINE, EXCITATION, Rotor and Stator Theory of OperationEngine Control and Ignition Rotor Field Feedback Auxiliary Power ReturnAuxiliary Power Overcurrent Protection Weld Winding and Reactor1TABLE of Contents Troubleshooting and Repair F-1 2TROUBLESHOOTING and REPAIRF-2 HOW to USE Troubleshooting GuideTroubleshooting and Repair Output Problems Perform the Rotor and Flashing Voltage Test Troubleshooting and Repair Troubleshooting and Repair Rotor Resistance Test Engine Problems Troubleshooting and Repair Engine Throttle Adjustment Test Powerarc Test Description Materials NeededFlashing Voltage Test Procedure 14TROUBLESHOOTING and REPAIRF-14Rotor Voltage Test Procedure LeadRotor Resistance Test Procedure Rotor Resistance Test Procedure Figure F.3 Brushes Retained with Cable TIE Powerarc Engine Throttle Adjustment Test ROBIN/SUBARU Engine Engine Throttle Adjustment Test ROBIN/SUBARU EngineHigh Speed Stop Screw High Idle no Load Scope SettingsNormal Open Circuit Weld Voltage Waveform Normal Open Circuit Voltage Waveform 115 VAC Supply Machine Loaded to 125 Amps AT 23 VAC Typical Weld Output WaveformMachine Loaded Brush Removal and Replacement Procedure Brush Removal and Replacement Procedure Powerarc Rheostat Removal and Replacement Procedure Rheostat Removal and Replacement Procedure Troubleshooting and Repair Attachment for 202A Cable Tie Capacitor Procedure Capacitor Removal and REPLACE- MentCapacitor AND/OR Diode Bridge Attachment for 201 201A JumperProcedure Field Diode Bridge Removal and Replacement Figure F.10 Field Diode Bridge LocationPowerarc STATOR/ROTOR Removal and Replacement Procedure Stator Removal Procedure STATOR/ROTORSection TOC Rotor Removal Procedure Procedure Reactor Bolts Lead Engine Output Auxiliary Power Receptacle OUTPUT1Retest After Repair WELDER/GENERATOR OUTPUT1Powerarc Table of Contents Diagram Section Electrical Diagrams Wiring Diagram Codes 11182, 11187, 11329 S25984Wiring Diagram Codes 11403, 11405 S26829 SwitchWiring Diagram Power ARC Wiring Diagram Code 11404 S26830Wiring Diagram Code 11215 S26023 Schematic -CODES 11182, 11187, 11329 S26008 S26008Schematic Codes 11403, 11405 S26881 S26881Schematic Code 11404 S26882 S26882
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