Lincoln Electric SVM103-C service manual Rotor Removal Procedure

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F-33

TROUBLESHOOTING & REPAIR

F-33

 

 

 

 

 

STATOR/ROTOR REMOVAL AND REPLACEMENT (continued)

FIGURE F.11 - ROTOR WITH STATOR REMOVED

ROTOR

THRU-BOLT

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ROTOR REMOVAL

PROCEDURE

1.To remove the rotor, double check that the spark plug wire is discon- nected. You will be turning the rotor during this procedure, and this could accidentally cause engine kickback.

2.With an impact wrench, remove the rotor thru-bolt. See Figure F.11. If an impact wrench is not available, use the 1/2” box wrench. Hold the rotor with one hand and shock the wrench with the mallet to loosen the thru-bolt. The thru-bolt has a star washer and lock washer, beveled to conform to the rotor shaft. Pull out the thru-bolt.

3.Install the long thru-bolt supplied with Lincoln Electric Rotor Removal Kit S20925. The slot head must face out. Screw in the bolt with the slot head screw driver until the bolt bottoms out on the engine crank- shaft, about 3/4”.

4.Turning it counterclockwise, screw in the reverse thread bolt from the kit into the rotor shaft until it bot- toms out on the thru-bolt.

5.With an impact wrench, tighten the

reverse thread bolt until the rotor pops off the engine crankshaft. If an impact wrench is not available, use the 1/2” box wrench. Hold the rotor with one hand and shock the wrench with the mallet until the rotor pops off the engine crankshaft.

6.Slide the rotor and blower (press-fitted to the rotor) the rest of the way off the crankshaft.

REASSEMBLY PROCEDURE

1.Lubricate the tapered engine crank- shaft. Slide the rotor onto the shaft.

2.Coat the rotor thru-bolt threads with Lincoln E177-R retaining compound (Locktite( 277). Place the beveled lock washers onto the thru-bolt and insert it into the rotor shaft. Hold the rotor and tighten the thru-bolt to 22 - 25 ft lbs.

3.Carefully install the stator, with the leads at the 1 o’ clock position.

IMPROPER HANDLING OF THE STATOR CAN RESULT IN SHORTED WINDINGS AND/OR LOST OUTPUT.

4.Install the end bracket. Slide it on and install the two top thru-bolts loosely to hold the end bracket for the next step.

5.Install the end bracket support.

POWER-ARC 4000

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Contents Safety Depends on You POWER-ARCCalifornia Proposition 65 Warnings SafetyElectric 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 Technical Specifications POWER-ARC InstallationSafety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Cert. Kool Bore Spark ArresterWelding Cable Connections Electrical Output ConnectionsCable Size for 125 ampAuxiliary Power Receptacles Machine GroundingPlugs and HAND-HELD Equipment Circuit Breakers Premises WiringThese Devices Without POWER-ARC Table of Contents Operation Section Operation Safety InstructionsOperating Instructions General DescriptionDesign Features Advantages Operational Features and ControlsRecommended Applications Welding CapabilityGENERATOR/WELDER Controls Controls and Settings20 AMP, 120 Volt Duplex Receptacle Gasoline Engine ControlsEngine Operation Before Starting the EngineStarting the Engine For a HOT Engine To USE the Generator AS AN Auxiliary Power Supply Generator OperationGeneral Information Suggested Power Applications Running Watts Start-up Watts Table B.1 Generator Power ApplicationsWelding Operation Table B.2 Welding APPLICATIONS/ELECTRODE Selection Guide Welding GuidelinesOperation What Happens in the Arc? Correct Welding Position Correct Arc Length Use the following PracticeDo the following Butt WeldsPenetration Fillet WeldsVertical-Down Welding Vertical-Up WeldingOverhead Welding Hardfacing To Reduce WearWelding Sheet Metal Cast Iron Plate Preparation Welding Cast IronHigh-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 Routine and Periodic Maintenance MaintenanceEngine Maintenance Engine AdjustmentsFigure D.2 Clean Rotating SCREEN/FINGER GUARD/DEBRIS Guard Table D.1 Engine Maintenance Schedule Do not attempt to polish slip rings while engine is running GENERATOR/WELDER MaintenanceFigure D.6. Major Component Locations Table of Contents Theory of Operation Section ENGINE, EXCITATION, Rotor and Stator Theory of OperationFigure E.3 Field Excitation and Auxiliary Power Rotor Field Feedback and Auxiliary PowerWeld Winding and Reactor Auxiliary Power Overcurrent ProtectionTable of Contents Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairOutput Problems TroubleshootingOr contact your local Lincoln Electric Authorized Field SerVice Facility Local Lincoln Electric Authorized Field Service FacilityTroubleshooting Rotor Resistance Test Engine Problems Troubleshooting Engine Throttle Adjustment Rotor Voltage Test This procedure takes approximately 15 minutes to performTest Description Materials NeededRotor Voltage Test Test ProcedureRotor Resistance Test This procedure takes approximately 25 minutes to performRotor Resistance Test Figure F.3 Brushes Retained with Cable TIE This procedure takes approximately 20 minutes to perform Engine Throttle Adjustment TestStrobe-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 Description Brush Removal and ReplacementProcedure Brush Removal and ReplacementProcedure Rheostat Removal and Replacement Figure F.7 Rheostat Removal This procedure takes approximately 35 minutes to perform Capacitor AND/OR Diode Bridge Removal and ReplacementFigure F.8 Location and Discharging the Field Capacitor Procedure Capacitor Removal and REPLACE- MentFigure F.8A Field Diode Bridge Location Procedure Field Diode Bridge Removal and Replacement STATOR/ROTOR Removal and Replacement This procedure takes approximately 3 hours to perform Instructions STATOR/ROTOR Removal and Replacement Troubleshooting & Repair Rotor Removal Procedure Figure F.12 Checking ROTOR-STATOR AIR GAP Retest After Repair Auxiliary Power Receptacle OUTPUT1Engine Output WELDER/GENERATOR OUTPUT1Return to Section TOC Table of Contents Diagrams Section Wiring Diagram Power ARC DiagramsDIAGRAMSG-3 DIAGRAMSG-4 Dimension Print Power ARC Return to Section TOC SVM Error Reporting Form
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