Procedure | Lincoln Electric SVM103-C specification

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F-24	TROUBLESHOOTING & REPAIR	F-24
	TROUBLESHOOTING & REPAIR

BRUSH REMOVAL AND REPLACEMENT (continued)

PROCEDURE (continued)

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8.To reinstall the brush holder assembly, depress the spring- loaded brushes into the holder and slip a suitable non-metallic, fairly stiff retainer through the slots at the top and bottom of the holder. A cable tie works well; see Figure F.6. This will hold the brushes up so that you can easily install the holder.

9.With the needle nose pliers, rein- stall the red and the black wires to the appropriate terminals on the brushes. The red wire is inboard.

10.Slip the holder into position in the generator end bracket. Be careful not to loosen the 2 attached wires.

11.Reinstall and tighten the 2 screws with the 1/4” nut driver.

12.Slowly remove the non-metallic retainer from the brush holder and let the brushes snap back against the slip rings.

13.Check the wire connections or clearance and tightness.

14.Snap the brush holder cover back into position.

POWER-ARC 4000

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Lincoln Electric SVM103-C service manual Procedure

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 Safety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Spark Arrester Cert. Kool Bore Electrical Output Connections Welding Cable ConnectionsCable Size for 125 amp Auxiliary Power Receptacles Machine GroundingPlugs and HAND-HELD Equipment Premises Wiring Circuit Breakers These Devices Without POWER-ARC Table of Contents Operation Section Safety Instructions OperationOperating Instructions General Description Operational Features and Controls Design Features AdvantagesRecommended Applications Welding Capability Controls and Settings GENERATOR/WELDER Controls Gasoline Engine Controls 20 AMP, 120 Volt Duplex Receptacle Engine Operation Before Starting the EngineStarting the Engine For a HOT Engine To USE the Generator AS AN Auxiliary Power Supply Generator OperationGeneral 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 Practice Use the followingDo the following Butt Welds Fillet Welds Penetration Vertical-Up Welding Vertical-Down Welding Overhead Welding Hardfacing To Reduce WearWelding Sheet Metal Welding Cast Iron Cast Iron Plate Preparation High-Speed Group AWS E6013 Out-of-Position Group AWS E6011Low Hydrogen Group Stable-Arc E7018 Table of Contents Accessories Section Accessories OPTIONS/ACCESSORIESLincoln Electric Accessories Table of Contents Maintenance Section Maintenance Routine and Periodic MaintenanceEngine 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 Or contact your local Lincoln Electric Authorized Field SerVice Facility Field Service Facility Local Lincoln Electric Authorized Troubleshooting Rotor Resistance Test Engine Problems Troubleshooting Engine Throttle Adjustment This procedure takes approximately 15 minutes to perform Rotor Voltage TestTest Description 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 Strobe-tach Method Frequency Counter MethodOscilloscope Method Wing NUT High Speed Stop Screw Scope Settings Normal Open Circuit Weld Voltage WaveformHigh Idle no Load Normal Open Circuit Voltage Waveform 115 VAC Supply Typical Weld Output Waveform Machine LoadedMachine 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 STATOR/ROTOR Removal and Replacement This procedure takes approximately 3 hours to performInstructions STATOR/ROTOR Removal and Replacement Troubleshooting & Repair Rotor Removal Procedure Figure F.12 Checking ROTOR-STATOR AIR GAP Auxiliary Power Receptacle OUTPUT1 Retest After RepairEngine Output 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