Lincoln Electric SVM134-A service manual Engine Operation, Before Starting the Engine

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B-7

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OPERATION

 

ENGINE OPERATION

Check and fill the engine fuel tank:

 

 

1. Remove the fuel tank cap.

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WARNING

DO NOT RUN THE ENGINE AT EXCESSIVE SPEEDS. The maximum allowable high idle speed for the Classic I is 1550 RPM, no load. Do NOT increase the idle speed on the engine. Severe personal injury and damage to the machine can result if it is operated at speeds above the maximum rated speed.

Read and understand all safety instructions included in the Continental engine instruction manual that is shipped with your Classic I.

BEFORE STARTING THE ENGINE

Check and fill the engine oil level:

1. Be sure the machine is on a level surface.

2.Fill the tank to allow approximately 1/4 inch (5 mm) of tank space for fuel expansion. DO NOT FILL THE TANK TO THE POINT OF OVERFLOW.

3.Replace the fuel tank cap and tighten securely.

WARNING

Do not add fuel near an open flame, welding arc or when the engine is run- ning. Stop the engine and allow it to cool before refueling to prevent spilled fuel from vaporizing on contact with hot engine parts and igniting. Do not

spill fuel when filling tank. If fuel is spilled, wipe it up and do not start engine until fumes have been elimi- nated.

2. Remove the engine oil dipstick and wipe it with a

NOTE: USE GASOLINE ONLY. Purchase gasoline in

clean cloth.

Reinsert the dipstick and check the

quantities that will be used within 30 days, to assure

level on the

dipstick. See Figure D.1 in the

freshness.

Maintenance section of this manual.

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3.Add oil (if necessary) to bring the level up to the full mark. Do not overfill.

4.Replace the dipstick.

STARTING THE ENGINE

NOTE: Remove all loads connected to the DC power receptacle before starting the engine. Make sure the fuel valve on the sediment bowl is in the open position.

1.Place the IDLER switch in the "HIGH" position and the IGNITION switch in the ON position. Pull out the choke cable and then press the START button.

NOTE: If the engine fails to start in 60 seconds, wait 30 seconds before repeating Step 1.

2.When the engine starts running, observe the oil pressure. If no pressure shows within 30 seconds, stop the engine and consult the engine operating manual.

3.As the engine warms, slowly return the choke con- trol to the in (off) position.

4.Allow the engine to run at high idle speed for sev- eral minutes to warm up before welding. Cold engines tend to run at a speed too slow to supply the voltage required for proper idler operation.

CLASSIC I

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Contents Classic I TM California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications Classic InstallationSafety Precautions Location and VentilationStoring PRE-OPERATION Engine Service Muffler Cooling SystemExhaust Spark Arrester TrailersFigure A.1 Ground Stud Location Machine GroundingElectrical Output Connections Auxiliary Power Receptacle PLUGS, and HAND-HELD EquipmentWelding Cable Connections Cable size for combined lengthClassic Table of Contents Operation Section Safety Instructions OperationOperating Instructions Recommended Applications Operational Features and ControlsWelder GeneratorWELDER/GENERATOR Controls Controls and SettingsFigure B.2 Current Controls Control of Welding CurrentReturn Section TOC Gasoline Engine ControlsEngine Operation Before Starting the EngineStarting the Engine Stopping the Engine Cold Weather StartingBREAK-IN Period After you finish welding Welding OperationTable B.1 Range Settings for Wire SIZE/SPEED Auxiliary PowerTable of Contents Accessories Semiautomatic Welding Accessories OPTIONS/ACCESSORIESWire Feed Module see Figure C.1 Connection of Lincoln Electric Wire FeedersConnection of the LN-25 to Classic I Across the ARC withClassic Table of Contents Maintenance Engine Maintenance Safety Precautions Routine and Periodic MaintenanceFigure D.1 OIL Drain and Refill MAX MIN Figure D.2A Engine Coolant Drain Plug Gap Specifications 0.032 inch .8 mm After cleaning or when installing a new spark plugSet the terminal gap with a feeler gauge or gapping Tool. See Figure D.4Classic I charging system is Negative Battery MaintenanceReturn to Section Return to Section TOC WELDER/GENERATOR MaintenanceIdler Maintenance Figure D.5 Major Component Locations Classic Table of Contents Theory of Operation Section BATTERY, STARTER, Engine Alternator and OIL Switch Circuit Theory of OperationGeneral Description ENGINE, Main Generator Armature and Frame and DC Exciter Excitation FlashingMain SHUNT, Interpole and Series Coils Fine Current Adjustment Current Range SelectorEngine Idler Circuit DC Generator Machines Return to Section TOC Table of Contents Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairPC Board can be damaged by static electricity PC Board Troubleshooting ProceduresTroubleshooting Guide Observe Safety GuidelinesDetailed in the beginning of this manual Shunt Field Winding Test Main Generator Throttle Adjustment Test Output Problems Function Problems Troubleshooting & Repair Engine Problems Welding Problems DC Exciter Test Test DescriptionMaterials Needed DC Exciter Test Test ProcedureFigure F.2 Exciter Cover Removal Shunt Coil and Series Coil Resistance Tests Small Flex Lead SolidIdler Solenoid Test Troubleshooting & Repair Main Generator Shunt Field Winding Test Main Generator Shunt Field Winding Test Figure F.6 Plug P10 PIN Assignments TAB Engine Throttle Adjustment Test Strobe Tach Method Engine Throttle Adjustment TestAdjust High Idle Engine Throttle Adjustment TestAdjust Low Idle Description Flashing the FieldsFlashing the Fields ProcedureFigure F.11 Brush HOLDER/BATTERY Jumper Connections Scope Settings Normal Open Circuit Voltage Waveform 115VDC SupplyHigh Idle no Load Fine Current Control Rheostat AT Maximum Normal Open Circuit DC Weld Voltage Waveform Typical DC Weld Voltage Waveform Machine Loaded Selector Switch AT MaximumDC Exciter Armature and Field Coils Removal and Replacement DC Exciter Armature Removal Procedure ReassemblyDC Exciter Armature and Field Coils Perform the DC Exciter Armature Removal Procedure Field Coils Removal ProcedureMain Generator Frame Removal and Replacement Replacement Bolt / NUT Main Generator Frame RemovalPerform the DC Exciter Armature Removal Lead Figure F.16 Selector Switch Lead Removal TerminalFigure F.18 Choke Control Cable Removal Loosen Here Main Generator Frame Removal Figure F.20 Front Panel Fastener Removal Troubleshooting & Repair Remove Mounting NUTS, Washers Bolts FeetPerform the DC Exciter Armature Reassembly Procedure Main Generator Armature Removal and Replacement Armature is now free to be removed from the engine Main Generator Armature RemovalRetest After Repair DC Auxiliary Power Receptacle OutputEngine Output Welder DC OutputElectrical Diagrams Section Wiring Diagram Classic Electrical DiagramsWiring Diagram Wire Feed Module Wire Feed Module Wiring Diagram16990 M Schematic Idler PC BoardIdler PC Board Assembly Idler PC Board