Lincoln Electric SVM 113-A service manual PRE-OPERATION Engine Service

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INSTALLATION

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STACKING

WELDANPOWER 125 machines CANNOT be stacked.

TILTING

Place the machine on a secure, level surface whenev- er you use it or store it. Any surfaces you place it on other than the ground must be firm, non-skid, and structurally sound.

The gasoline engine is designed to run in a level posi- tion for best performance. It can operate at an angle, but this should never be more than 15 degrees in any direction. If you do operate it at a slight angle, be sure to check the oil regularly and keep the oil level full. Also, fuel capacity will be a little less at an angle.

LIFTING

The WELDANPOWER 125 should be lifted by two peo- ple. (It weighs 190 lbs/86.4 kg.) Its welded tube roll cage is designed to make lifting easy.

OIL

The WELDANPOWER 125 is shipped with

the engine filled with SAE 10W-30 oil.

CHECK THE OIL LEVEL BEFORE YOU START THE ENGINE. This is an added precaution. Do not screw in the dipstick when checking the oil. If it is not full, add enough oil to fill it. DO NOT OVERFILL. Be sure the fill plug is tight.

For more oil fill and service information, see the Maintenance section of this manual.

FUEL

Fill the fuel tank with clean, fresh, regular grade lead-free gasoline. DO NOT MIX OIL

WITH THE GASOLINE.

The WELDANPOWER 125 has a plastic, 1.6 gallon (6.0 liter) fuel tank mounted on the engine. See the Operation and Maintenance sections of this manual for more details about fuel.

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PRE-OPERATION ENGINE SERVICE

Read and understand the information about the gaso- line engine in the Operation and Maintenance sec- tions of this manual before you operate the WELDANPOWER 125.

WARNING

•Keep hands away from the engine muffler or HOT engine parts.

•Stop the engine when fueling.

•Do not smoke when fueling.

•Remove the fuel cap slowly to release pressure.

•Do not overfill the fuel tank.

•Wipe up spilled fuel and allow the fumes to clear before starting the engine.

•Keep sparks and flame away from the fuel tank.

SPARK ARRESTER

Gasoline engine mufflers may emit sparks when the engine is running. Some federal, state, or local laws require spark arresters in locations where unarrested sparks could present a fire hazard.

Standard mufflers and deflectors (like the ones includ- ed with the WELDANPOWER 125) do not act as spark arresters. When local laws require it, a spark arrester must be installed on the machine and properly main- tained. Consult Briggs & Stratton for proper engine spark arrester.

WELDANPOWER 125

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Contents Weldanpowertm Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Technical Specifications WeldanpowerLocation and Ventilation Safety PrecautionsStoring PRE-OPERATION Engine Service Electrical Output Connections Welding Cable ConnectionsMachine Grounding Auxiliary Power ReceptaclesPlugs and HAND-HELD Equipment Premises Wiring Circuit BreakersThese Devices Without Table of Contents Operation Section Operating Instructions Safety InstructionsOperation General DescriptionRecommended Applications Operational Features and ControlsDesign Features Advantages Welding CapabilityControls and Settings WELDER/GENERATOR ControlsGasoline Engine Controls Figure B.2 Gasoline Engine ControlsBefore Starting the Engine Engine OperationStarting the Engine Stopping the Engine For Best Engine StartingGeneral Information Welding OperationBREAK-IN Period LOW OIL SensingTo USE the Weldanpower 125 for WELD- ING TIG WeldingTable B.2 Electrode Selection Guide Auxiliary Power To USE the Weldanpower 125 AS AN Auxiliary Power SupplyTable B.3 Generator Power Applications Table of Contents Accessories Lincoln Electric Accessories OPTIONS/ACCESSORIESBriggs and Stratton Accessories Table of Contents Maintenance Routine and Periodic Maintenance Engine MaintenanceFigure D.3 Clean Finger Guard MaintanenceFigure D.5 SET Spark Plug GAP WELDER/GENERATOR Maintenance Table D.2 Engine Maintenance PartsFigure D.6 Major Component Locations Table of Contents Theory of Operation Section ENGINE, EXCITATION, Rotor and Stator Idler BoardRotor Field Feedback Auxiliary Power Engine Idle Control Auxiliary Power Overcurrent ProtectionWeld WINDING, Output Rectifier and Choke Figure E.4 Weld WINDING, Output Rectifier and ChokeTable of Contents Trouble Shooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Electric Shock can killTroubleshooting Guide Output ProblemsOutput Rectifier Troubleshooting & Repair Perform the Engine Throttle Engine Problems Main Stator Winding Test Engine Throttle Adjustment Troubleshooting & Repair Weldanpower Test Description Rotor Voltage TestMaterials Needed Test Procedure Rotor Voltage TestRotor Resistance Test Rotor Resistance Test Figure F.3 Brushes Retained with Cable TIE Output Rectifier Bridge Test Output Rectifier Bridge Test Main Stator Test Main Stator Test Figure F.6 Main Stator Molex Plug Test Points Rotor Flashing Circuit Test Rotor Flashing Circuit Test WP125 Idler Engine Throttle Adjustment Test Test Procedure Figure F.12 Idle Speed Adjustment Screw Locations Figure F.13 LOW Idle Adjustment NUT on Idler Solenoid TOC Normal Open Circuit Weld Voltage Waveform Scope SettingsHigh Idle no Load Output Control AT Maximum Normal Open Circuit Voltage Waveform 115 VAC Supply Machine Loaded Typical Weld Output WaveformMachine Loaded to 125 Amps AT 25 VAC Abnormal Open Circuit Weld Voltage Waveform Brush Removal and Replacement DescriptionProcedure Figure F.14 Brushes Retained with Cable TIEProcedure Rheostat Removal and Replacement Rheostat Removal and Replacement Field Capacitor Removal and Replacement Field Capacitor Removal and Replacement Field Diode Bridge Removal and Replacement Field Diode Bridge Removal and Replacement Figure F.18 Field Diode Bridge Location Idler Printed Circuit Board Removal Replacement Carefully remove the board Output Rectifier Bridge Removal Replacement Output Rectifier Bridge Removal and Replacement Troubleshooting & Repair Output Choke Removal and Replacement Output Choke Removal and Replacement Section TOC STATOR/ROTOR Removal and Replacement InstructionsStator Removal Procedure Troubleshooting & Repair Rotor Removal Procedure Reassembly ProcedureFigure F.24 Checking ROTOR-STATOR AIR GAP Feeler Gauge Troubleshooting & Repair Engine Output Auxiliary Power Receptacle OUTPUT1Retest After Repair WELDER/GENERATOR OUTPUT1Weldanpower Table of Contents Diagrams Section Wiring Diagram Code 10158 Schematic DiagramsIdler PC Board M17578 Dimension Print Weldanpower Weldanpower M17578 Idler PC Board M17578-1M17578 Idler PC Board Bill of Materials DescriptionWeldanpower
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