Lincoln Electric SVM197-A service manual Brush Removal and Replacement

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F-26

TROUBLESHOOTING AND REPAIR

F-26

BRUSH REMOVAL AND REPLACEMENT (continued)

FIGURE F.7 - BRUSHES RETAINED WITH CABLE TIE

CABLE

TIE

BRUSHES

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PROCEDURE

1.Remove the spark plug wire.

2.Open the brush holder assembly cover. Squeeze the 2 tabs and depress the cover at the top with a screw driver or your fingernail. The cover will drop open on its bottom hinge.

3.With the 1/4” nut driver, remove the 2 screws that hold the brush holder assembly in place.

4.With the needle nose pliers, gently remove the two white wires.

Note: Lead 202A is inboard. Lead 201A is outboard.

5.To change the brushes, use the slot head screw driver to pop off the plastic retainer on the back of the brush holder assembly.

6.Remove the old brush assemblies and insert the new ones. One corner of the terminal clip is beveled so that the brush can go in only one way.

7.Snap the plastic retainer back onto the brush holder. The brushes may need some repositioning; wiggle them slightly to help them seat prop- erly.

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