Lincoln Electric SVM 113-A service manual Premises Wiring, Circuit Breakers

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A-7

A-7

INSTALLATION

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PREMISES WIRING

The WELDANPOWER 125 three-wire, grounded neu- tral generator allows it to be connected to premises wiring. However, the wiring procedure needed to meet the National Electric Code (NEC) regulations as well as city ordinances can be confusing. Matters get worse depending on whether you want the machine to be “hardwired” to the premises or only connected tem- porarily.

WARNING

Only a licensed, certified, trained electrician should install the machine to a premises or residential electri- cal system. Be certain that:

•The premises is isolated and no feedbacking into the utility system can occur. Certain state and local laws require the premises to be isolated before the generator is linked to the premises. Check your state and local requirements.

•A double pole, double throw transfer switch in con- junction with the properly rated double throw circuit breaker is connected between the generator power and the utility meter.

The WELDANPOWER 125 does not have a combined 115/230 volt twist-lock receptacle and cannot be con- nected to a premises as described in other Lincoln lit- erature.

Remember that the WELDANPOWER 125 is intended only for backup, intermittent use. It cannot withstand long-term use without proper maintenance. See the Maintenance section of this manual for more informa- tion.

Certain electrical devices cannot be powered by the WELDANPOWER 125. Refer to Table A.2 for these devices.

CIRCUIT BREAKERS

The WELDANPOWER 125 has its own 20 amp circuit breakers for overload protection (15 amp CSA). When the

machine is operated in high temperature environ- ments, the breakers may tend to trip at lower loads than normally.

CAUTION

Never bypass the circuit breakers. Without overload protection, the WELDANPOWER 125 could overheat and/or cause damage to the equipment being used.

WELDANPOWER 125

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Contents Weldanpowertm California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Technical Specifications Weldanpower InstallationLocation and Ventilation Safety PrecautionsStoring PRE-OPERATION Engine Service Welding Cable Connections Electrical Output ConnectionsMachine Grounding Auxiliary Power ReceptaclesPlugs and HAND-HELD Equipment Circuit Breakers Premises WiringThese Devices Without Table of Contents Operation Section Operation Safety InstructionsOperating Instructions General DescriptionDesign Features Advantages Operational Features and ControlsRecommended Applications Welding CapabilityWELDER/GENERATOR Controls Controls and SettingsFigure B.2 Gasoline Engine Controls Gasoline Engine ControlsBefore Starting the Engine Engine OperationStarting the Engine For Best Engine Starting Stopping the EngineBREAK-IN Period Welding OperationGeneral Information LOW OIL SensingTIG Welding To USE the Weldanpower 125 for WELD- INGTable B.2 Electrode Selection Guide To USE the Weldanpower 125 AS AN Auxiliary Power Supply Auxiliary PowerTable B.3 Generator Power Applications Table of Contents Accessories Lincoln Electric Accessories OPTIONS/ACCESSORIESBriggs and Stratton Accessories Table of Contents Maintenance Engine Maintenance Routine and Periodic MaintenanceMaintanence Figure D.3 Clean Finger GuardFigure D.5 SET Spark Plug GAP Table D.2 Engine Maintenance Parts WELDER/GENERATOR MaintenanceFigure D.6 Major Component Locations Table of Contents Theory of Operation Section Idler Board ENGINE, EXCITATION, Rotor and StatorAuxiliary Power Overcurrent Protection Rotor Field Feedback Auxiliary Power Engine Idle ControlFigure E.4 Weld WINDING, Output Rectifier and Choke Weld WINDING, Output Rectifier and ChokeTable of Contents Trouble Shooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & RepairElectric Shock can kill PC Board Troubleshooting ProceduresOutput Problems Troubleshooting GuideOutput 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 Rotor Voltage Test Test ProcedureRotor 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 Description Brush Removal and ReplacementFigure F.14 Brushes Retained with Cable TIE ProcedureProcedure 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 Instructions STATOR/ROTOR Removal and ReplacementStator Removal Procedure Troubleshooting & Repair Reassembly Procedure Rotor Removal ProcedureFigure F.24 Checking ROTOR-STATOR AIR GAP Feeler Gauge Troubleshooting & Repair Retest After Repair Auxiliary Power Receptacle OUTPUT1Engine Output WELDER/GENERATOR OUTPUT1Weldanpower Table of Contents Diagrams Section Wiring Diagram Code 10158 Schematic DiagramsIdler PC Board M17578 Dimension Print Weldanpower Weldanpower M17578-1 M17578 Idler PC BoardDescription M17578 Idler PC Board Bill of MaterialsWeldanpower