Lincoln Electric SVM166-A service manual Schematic Feedhead P.C. Board G3883-1E0/2

Page 89

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

G-7	ELECTRICAL DIAGRAMS	G-7
SCHEMATIC - FEEDHEAD P.C. BOARD - (G3883-1E0/2)

NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.

LN-15

Image 89

Contents LN-15 Wire Feeder Safety Electric Shock can kill Welding Sparks can cause fire or explosion SafetySûreté Pour Soudage a L’Arc Précautions DE SûretéMaster Table of Contents for ALL Sections Installation Section Table of ContentsTechnical Specifications LN-15 K1870-1, K1870-2 CE InstallationLocation Safety PrecautionsWork Clip Lead High Frequency ProtectionPower Source Connection Engine Drive Power SourceWeld Cable Connections ConnectionFigure A.1 Connections GUN and Cable AssembliesElectrode Polarity Feeding Wire Electrode LN-15 Section B Operation SectionOperation Safety PrecautionsGeneral Description Across the ARC Model 83% ProcedureNormal POWER-UP Display WFS Cold FEED/GAS Purge Switch Wire Drive ConfigurationFlow Meter Step Trigger Interlock SwitchSpindle Brake Shielding GAS ConnectionFigure B.3 Constant Current OperationFigure B.4 CC Wire Speed Setting Making a Weld OPERATIONB-11LN-15 Accessories Section Optional Equipment AccessoriesFactory Installed Equipment Section D Maintenance SectionRoutine Maintenance MAINTENANCED-2Periodic Maintenance Calibration SpecificationFigure D.1 Major Component Locations MaintenanceLN-15 Section E Theory of Operation SectionReturn to Section Theory of OperationTrigger and Control Circuits Wire Feed Speed Control Display Board LN-15 Section F Troubleshooting & Repair SectionHOW to USE Troubleshooting Guide Troubleshooting & RepairWorkstations PC Board Troubleshooting ProceduresFeeding Problems Troubleshooting & Repair Feeding Problems Perform the Wire Drive Motor Welding Problems Description Resolution Definition LN-15 Test Description Boost Power Board TestTest Procedure J47 LN-15 GAS Solenoid Valve Test Troubleshooting and RepairGAS Solenoid Test ProcedureContactor Test Large Terminal Studs Drive Motor Test Leads 550 Hall Effect Module Test Blue Red 562 Contactor Removal and Replacement Procedure Removal Procedure Contactor Removal and Replacement ProcedureReplacement Procedure LN-15 Feed Head Control Board Removal and Replacement Procedure Feed Head Control Board Removal and Replacement ProcedureMounting Nuts J81 J88 J82 J83 J84 J85J86 LN-15 Boost Power Supply Board Removal and Replacement Procedure Figure F.11 Boost Power Board Location Boost Power Supply BoardFigure F.12 Boost Power Board PLUG/MOUNT Location LN-15 Wire Drive Assembly Removal and Replacement Procedure Mounting Screws Wire Drive AssemblyCover and Spindle Mount Removal and Replacement Procedure Figure F.14 Cover and Spindle Mount Location Cover and Spindle MountBolt LN-15 Roll Cage Removal and Replacement Procedure Roll Cage Bolt BoltsRetest After Repair LN-15 Electrical Diagrams Section Wiring Diagram Entire Machine L11436-1 Electrical DiagramsG4198 Schematic Entire Machine G4198-1Schematic Boost PC Board L11818-2 To Section PC Board Assembly Boost M19753-2Schematic Feedhead P.C. Board G3883-1E0/1 Schematic Feedhead P.C. Board G3883-1E0/2 PC Board Assembly Feedhead G3884-1 Schematic SPI Display P.C. Board L11756-1E1 PC Board Assembly SPI Display P.C. Board L11757-1 SVM Error Reporting Form