Lincoln Electric SVM103-A Figure D.2 Clean Rotating SCREEN/FINGER GUARD/DEBRIS Guard

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D-2

MAINTENANCE

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AIR CLEANER: Your air cleaner may have only the paper cartridge, or it may have the cartridge and a foam pre-clean- er. If it has the pre-cleaner, service the cartridge every 100 hours and the pre-

cleaner every 25 hours or once a year, whichever comes first. If the air cleaner doesn’t have the pre- cleaner, service the cartridge every 25 hours or once a year, whichever comes first. Under dusty conditions, service more often.

Clean Rotating Screen: See Figure D.2. Clean the rotating screen on your machineís engine as often as needed to remove dirt or debris that may collect on the screen. A dirty screen can result in engine over- heating and damage.

FIGURE D.2 - CLEAN ROTATING

SCREEN/FINGER GUARD/DEBRIS GUARD

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CAUTION

Do not use petroleum solvents such as kerosene to clean the cartridge. They may cause deterioration of

the cartridge. DO NOT OIL THE CARTRIDGE OR USE PRESSURIZED AIR TO CLEAN OR DRY THE CAR- TRIDGE.

Remove the wing nut and cover. Carefully remove the foam pre-cleaner, if equipped, from the cartridge.

To service the pre-cleaner:

1.Wash in liquid detergent and water.

2.Squeeze dry in a clean cloth.

3.Saturate in clean engine oil.

4.Squeeze in a clean, absorbent cloth to remove all excess oil.

To service the cartridge:

1.Tap gently on a clean surface.

2.Replace if very dirty or wash in a non-sudsing detergent and warm water solution.

3.Rinse thoroughly from the mesh side with flowing water until the water is clear.

4.Allow to stand and air dry before reinstalling.

Carefully place the pre-cleaner back over the cartridge and reinstall the air cleaner cover and wingnut.

CLEAN ENGINE: Remove dirt and debris with a cloth or a brush. Do not clean with a forceful spray of water. Water might contaminate the fuel system.

CAUTION

Periodically clean the muffler area to remove com- bustible debris.

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1. ROTATING SCREEN

CLEAN COOLING SYSTEM: See Figure D.3. Clean the internal cooling fins and surfaces to prevent over- speeding, overheating, and engine damage. Clean every 100 operating hours or as often as necessary.

FIGURE D.3 - CLEAN COOLING SYSTEM

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1. REMOVE CHAFF AND DIRT FROM THESE AREAS.

POWER-ARC 4000

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Contents POWER-ARC TM4000 POWER-ARC SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionPrécautions 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 Electrical Output Connections Power ARCWelding Cable Connections Cable Size and LengthCable Installation Auxiliary Power ReceptaclesMachine Grounding Plugs and HAND-HELD EquipmentCircuit Breakers Premises WiringType Common Electrical Devices Possible Concerns Table A.2 Electrical Device USE with the POWER-ARCTable of Contents Operation Section Operation Safety InstructionsOperating Instructions General DescriptionDesign Features Advantages Operational Features and ControlsRecommended Applications Welding CapabilityGENERATOR/WELDER Controls Controls and SettingsGasoline Engine Controls Figure B.2 Gasoline Engine ControlsEngine Operation Before Starting the EngineStarting the Engine Stopping the Engine Running the EngineBREAK-IN Period To USE the Generator AS AN Auxiliary Power Supply Generator OperationGeneral Information Table B.3 Generator Power Applications To USE the POWER-ARC 4000 for Welding Welding OperationAfter YOU Finish the Weld Material Thickness Electrode Type Size Setting Welding GuidelinesStick Welding ARC Welding CircuitFour Factors of Successful Welding 12/95 POWER-ARCElectrode Correct WAY to Strike AN ARCCorrect Welding Speed Correct ARC LengthTable of Contents Accessories OPTIONS/ACCESSORIES Lincoln Electric AccessoriesBriggs and Stratton Accessories Table of Contents Maintenance Engine Maintenance Routine and Periodic MaintenanceFigure D.2 Clean Rotating SCREEN/FINGER GUARD/DEBRIS Guard Figure D.4 SET Spark Plug GAP Table D.2 Engine Maintenance Parts GENERATOR/WELDER MaintenancePart Part Number Figure 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 Trouble Shooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairOutput Problems Troubleshooting GuideOr contact your local Lincoln Local Lincoln Electric Authorized Troubleshooting & Repair Troubleshooting & Repair Engine Problems Engine Problems Welding Problems Rotor Voltage Test Test DescriptionMaterials Needed Ground Stud Lead 200A Connection Output Panel Test ProcedureRotor Resistance Test Rings SlipCable TIE Brushes Figure F.3 Brushes Retained with Cable TIEEngine Throttle Adjustment Test Strobe-tach Method MarkFrequency Counter Method Oscilloscope MethodNUT Figure F.5 Location of Engine Throttle Adjustment NUTScope 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 ReplacementFigure F.6 Brushes Retained with Cable TIE ProcedureProcedure Rheostat Removal and Replacement Figure F.7 Rheostat Removal Capacitor AND/OR Diode Bridge Removal Replacement Procedure Capacitor Removal and Replacement Capacitor AND/OR Diode Bridge Removal and ReplacementProcedure Diode Bridge Removal and Replacement Instructions STATOR/ROTOR Removal and ReplacementTIE Wrap Stator Removal ProcedureOutput TerminalsFigure F.10 Stator END Bracket Support and THRU-BOLTS Thru Bolts Support Nuts POWER-ARCRotor Removal Procedure Reassembly ProcedureRotor THRU-BOLT Rotor Feeler GaugeRetest After Repair Auxiliary Power Receptacle OUTPUT1Engine Output WELDER/GENERATOR OUTPUT1POWER-ARC Table of Contents Electrical DiagramsSection G POWER-ARC Electrical DiagramPOWER-ARC POWER-ARC