Lincoln Electric SVM103-A service manual Stopping the Engine, Running the Engine, BREAK-IN Period

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B-6

OPERATION

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4.Pull the cord rapidly.

5.If the engine does not start, open the choke slight- ly (move lever upward) and pull the starter cord rapidly again.

When the engine starts, gradually open the choke to the highest, upward position.

FOR A “HOT” ENGINE:

1.Open the fuel shutoff valve on the bottom of the fuel tank.

2.Place the choke lever in the highest, upward position. Closing the choke of a hot engine will flood the carbu- retor and prevent starting.

3.Pull slightly on the recoil starter handle until resis- tance is felt.

4.Pull the cord rapidly.

FOR BEST ENGINE STARTING:

•Do not adjust air or fuel mixtures without following the procedures in the Briggs & Stratton Operating and Maintenance Instructions manual.

•Always use fresh gasoline and be sure the filter is clean and properly maintained.

•If you use an alternate fuel tank or supply, be sure to install an in-line fuel filter.

•Do not pull the recoil starter with the choke in the downward position more than one time. Repeated pulls on a choked engine will flood the carburetor.

•If you don’t feel resistance when you pull the recoil cord, gently hit the starter housing and/or pull the cord out to its fully extended position and wiggle it rapidly. Repeat this if necessary until the clutch engages the shaft and you feel resistance when you pull the cord.

•If the engine will not start, see the TROU- BLESHOOTING section of this manual.

STOPPING THE ENGINE

1.Remove all welding and generator power loads and let the engine cool by running it for several minutes.

2.Stop the engine by pressing downward on the piercing stop switch lever.

3.Hold the lever down firmly until the engine com- pletely stops. Otherwise, the engine may restart or sputter as it stops.

4.Close the fuel shutoff valve at the bottom of the fuel tank.

FOR BEST ENGINE STOPPING:

•Do not remove the rubber spark plug boot.

•Be sure the piercing point on the piercing stop switch lever firmly contacts the spark plug.

•Do not apply excessive force to or bend the pierc- ing stop switch lever.

WARNING

Close the fuel valve when the machine is transported to prevent fuel leakage from the carburetor. Drain the tank before transporting the machine in a vehicle.

For long periods of storage, turn off the fuel shutoff valve (lowest, downward position) and let the engine run until there is no more fuel in the line. Use a fuel additive such as Sta-Bil to minimize fuel gum deposits.

RUNNING THE ENGINE

The engine is set at the factory to run at high idle speed when not under load. You should not adjust this setting yourself.

BREAK-IN PERIOD

Any engine will use a small amount of oil during its “break-in” period. For the gasoline engine on the POWER-ARC 4000, break-in is about 12 running hours.

Check the oil frequently during break-in. Change the oil after the first 5 hours of operation. For more details, see the MAINTENANCE section of this manu- al.

CAUTION

During break-in, subject the POWER-ARC 4000 to only moderate loads. Avoid long periods running at idle. Before stopping the engine, remove all loads and allow the engine to cool several minutes.

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
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