Lincoln Electric SVM103-A service manual Engine Problems

Page 48

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F-7

TROUBLESHOOTING & REPAIR

 

 

 

 

 

 

 

 

Observe Safety Guidelines

 

 

TROUBLESHOOTING GUIDE

 

detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE AREAS OF

RECOMMENDED

 

 

 

(SYMPTOMS)

 

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGINE PROBLEMS

 

 

 

 

 

 

Engine will not start.

 

1. Make sure the piecing stop

1.

Check the fuel line for breaks or

 

 

 

 

switch is NOT touching the

 

obstructions. Replace the fuel

 

 

 

 

spark plug boot.

 

filter.

DO NOT RUN THE EN-

 

 

 

 

2. Check spark plug boot and wire

 

GINE

WITHOUT AN IN-LINE

 

 

 

 

 

FUEL FILTER.

 

 

 

 

 

for loose or faulty connection.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Make sure that the fuel shutoff

2.

The spark plug may be faulty.

 

 

 

 

 

Replace.

 

 

 

 

 

valve is in the farthest upward

 

 

 

 

 

 

 

 

 

 

 

 

 

 

position.

3. Service the engine as outlined

 

 

 

 

4. Make certain that the engine

 

in the

Maintenance section of

 

 

 

 

 

this manual.

 

 

 

 

 

has adequate fuel and oil.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5. Adjust the choke to prevent car-

4.

The engine magneto may

be

 

 

 

 

 

faulty.

Consult Briggs

&

 

 

 

 

buretor flooding.

 

 

 

 

 

 

Stratton owner’s manual.

 

 

 

 

 

 

 

 

 

 

 

 

6. The recoil starter may not be

5.

The engine may be faulty.

 

 

 

 

engaged with the engine. gen-

 

 

 

 

 

Replace.

 

 

 

 

 

tly hit the blower housing and/or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pull the rope to its fully extend-

 

 

 

 

 

 

 

 

ed position and rapidly wiggle it.

 

 

 

 

 

 

 

 

Repeat until the clutch engages

 

 

 

 

 

 

 

 

with the engine shaft and resis-

 

 

 

 

 

 

 

 

tance is felt.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 216-383-2531 or 1-800-833-9353.

POWER-ARC 4000

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Contents POWER-ARC TM4000 Safety POWER-ARCElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications POWER-ARCSafety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Power ARC Electrical Output ConnectionsWelding Cable Connections Cable Size and LengthAuxiliary Power Receptacles Cable InstallationMachine Grounding Plugs and HAND-HELD EquipmentPremises Wiring Circuit BreakersTable A.2 Electrical Device USE with the POWER-ARC Type Common Electrical Devices Possible ConcernsTable of Contents Operation Section Safety Instructions OperationOperating Instructions General DescriptionOperational Features and Controls Design Features AdvantagesRecommended Applications Welding CapabilityControls and Settings GENERATOR/WELDER ControlsFigure B.2 Gasoline Engine Controls 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 Welding Circuit ARC12/95 POWER-ARC Four Factors of Successful WeldingElectrode Correct WAY to Strike AN ARCCorrect ARC Length Correct Welding SpeedTable of Contents Accessories OPTIONS/ACCESSORIES Lincoln Electric AccessoriesBriggs and Stratton Accessories Table of Contents Maintenance Routine and Periodic Maintenance Engine 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 Theory of Operation ENGINE, EXCITATION, Rotor and StatorRotor Field Feedback and Auxiliary Power Figure E.3 Field Excitation and Auxiliary PowerAuxiliary Power Overcurrent Protection Weld Winding and ReactorTable of Contents Trouble Shooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuideTroubleshooting Guide Output ProblemsOr contact your local Lincoln Local Lincoln Electric Authorized Troubleshooting & Repair Troubleshooting & Repair Engine Problems Engine Problems Welding Problems Rotor Voltage Test Test DescriptionMaterials Needed Test Procedure Ground Stud Lead 200A Connection Output PanelRotor Resistance Test Slip RingsFigure F.3 Brushes Retained with Cable TIE Cable TIE BrushesEngine Throttle Adjustment Test Mark Strobe-tach MethodFrequency Counter Method Oscilloscope MethodFigure F.5 Location of Engine Throttle Adjustment NUT 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 Brush Removal and Replacement DescriptionProcedure Figure F.6 Brushes Retained with Cable TIEProcedure Rheostat Removal and Replacement Figure F.7 Rheostat Removal Capacitor AND/OR Diode Bridge Removal Replacement Capacitor AND/OR Diode Bridge Removal and Replacement Procedure Capacitor Removal and ReplacementProcedure Diode Bridge Removal and Replacement STATOR/ROTOR Removal and Replacement InstructionsStator Removal Procedure TIE WrapOutput TerminalsThru Bolts Support Nuts POWER-ARC Figure F.10 Stator END Bracket Support and THRU-BOLTSRotor Removal Procedure Reassembly ProcedureRotor THRU-BOLT Feeler Gauge RotorAuxiliary Power Receptacle OUTPUT1 Retest After RepairEngine Output WELDER/GENERATOR OUTPUT1POWER-ARC Table of Contents Electrical DiagramsSection G Electrical Diagram POWER-ARCPOWER-ARC POWER-ARC
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