Printed Circuit Board Removal | Lincoln Electric SVM168-B guide

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F-49	TROUBLESHOOTING & REPAIR	F-49

PRINTED CIRCUIT BOARD REMOVAL

AND REPLACEMENT (continued)

CAUTION

Be sure to follow the recommended static- free methods for handling printed circuit boards. Failure to do so can result in perma- nent damage to the equipment.

12.With the 1/4” phillips head screw driver, remove four self tapping screws holding the printed circuit board.

13.Replace the old printed circuit board with a new one.

14.Connect the 12-pin molex plug.

15.Connect the 4-pin molex plug.

16.Connect two 1/4” Q.C. wires to P.C. Board.

17.Replace any cable ties that were cut dur- ing the removal procedure.

18.Replace 4 self tapping screws previously removed.

19.Reinstall the case side, fuel cap, lift bail gasket, case top, and spark plug wires.

RANGER® 10,000 & RANGER® 10,000 PLUS

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Lincoln Electric SVM168-B service manual Printed Circuit Board Removal, Replacement

Contents

Ranger 10,000 /10,000 Plus For Engine SafetyPowered equipment Fumes and Gases ARC Rays can burn Iii Welding and Cutting Sparks can cause fire or ExplosionCylinder may explode If damaged Précautions DE Sûreté Master Table of Contents for ALL Sections Section A-1 Table of ContentsInstallation Section Height Width Depth Weight Installation Horsepower Operating Speed RPM Spark Arrester Safety PrecautionsMachine Grounding Towing Gasoline PRE-OPERATION ServiceVehicle Mounting Can cause fire or explosion Total Combined Length of Electrode and Work Cables Welding Output CablesAngle of Operation Lifting Instructions Connection of Lincoln Electric Wire FeedersStacking Welder Operation 120/240 Volt Dual Voltage Receptacle Auxiliary PowerDuplex Receptacles Motor Starting Not USE These Devices With a Ranger 10,000 These Devices Without Additional Resistive Type Loads Standby Power Connections Simultaneous Welding and Power Figure A.1 Ranger 10,000 & Ranger 10,000 Plus Operation Operation SectionSection B-1 Welder Controls Function and Operation Engine SwitchOperation Range Switch Polarity SwitchKohler Honda Robin / Subaru 20 H.P. Command Control Dial BREAK-IN Period STARTING/SHUTDOWN InstructionsStarting the Engine Stopping the Engine TIG Constant Current Welding Wire Feed Welding Processes Constant VoltageStick Constant Current Welding Summary of Welding Processes Start Switch Wire FEED, LN-15 Section C-1 Accessories Section Optional Equipment Field Installed Accessories Stick Recommended EquipmentTIG Welding Plasma Cutting Ranger 10,000 & Ranger 10,000 Plus Section D-1 Maintenance Section Kohler Honda MaintenanceSafety Precautions OIL Filter Change AIR Cleaner and Other Maintenance Battery Engine AdjustmentsOverspeed is Hazardous Slip Rings Oil Filter Pre-CleanerAir Filter Element Figure D.1 Major Component Location Theory of Operation Theory of Operation SectionSection E-1 Theory of Operation BATTERY, STARTER, ENGINE, ROTOR, STATOR, and Idler Solenoid Figure E.3 Rotor Field Feedback and Auxiliary Power Rotor Field Feedback and Auxiliary Power Figure E.4 Weld WINDING, REACTOR, and Range Switch Weld WINDING, REACTOR, Range Switch Output BRIDGE, Choke Polarity SWITCH, and Output Terminals Ranger 10,000 & Ranger 10,000 Plus Section F-1 Troubleshooting & Repair Section HOW to USE Troubleshooting Guide Troubleshooting & Repair Electric Shock PC Board Troubleshooting Procedures Output Problems Troubleshooting Guide Output Problems Field Winding Voltage Test Adjustment Test Troubleshooting Guide Output Problems Engine Problems Make sure the leads are looped Charging Circuit Test Welding Problems Ranger 10,000 & Ranger 10,000 Plus Materials Needed Rotor Voltage TestTest Description Test Procedure Rotor Resistance Test Figure F.2 Location of Rotor Slip Rings Rotor Resistance Test Troubleshooting & Repair Ranger 10,000 & Ranger 10,000 Plus Auxiliary and Field Winding Test To test the 230 VAC winding Auxiliary and Field Winding TestTo test the 115 VAC winding To test the field winding Ranger 10,000 & Ranger 10,000 Plus Output Rectifier Bridge Test Figutpure F.4 Locationctifof Output Rectifier Leads 26TROUBLESHOOTING & REPAIRF-26Output Rectifier Bridge Test Charging Circuit Test Figure F.5 Location of Voltage Regulator Charging Circuit Test Engine Throttle Adjustment Test Figure F.6 Blower Paddle Marked for STROBE-TACH Method Engine Throttle Adjustment Test Figure F.7 Oscilloscope Method High Idle no Load Output Control AT Maximum Scope SettingsNormal Open Circuit Voltage Waveform 115 VAC Supply Machine Loaded to 200 Amps AT 20 VDC Typical DC Weld Output Waveform CV ModeMachine Loaded Machine Loaded to 200 Amps AT 26 VDC Typical DC Weld Output Waveform CC Mode Machine Loaded to 225 Amps AT 25 VDC Typical AC Weld Output Waveform Abnormal Open Circuit Weld Voltage Waveform CV Mode Abnormal Open Circuit DC Weld Voltage Waveform Normal Open Circuit Weld Voltage Waveform CV Mode Normal Open Circuit DC Weld Voltage Waveform CC Mode Normal Open Circuit AC Weld Voltage Waveform Ranger 10,000 & Ranger 10,000 Plus Description Brush Removal and Replacement Procedure Brush Removal and Replacement Figure F.9 Brush LEADS/BRUSHES Retained with Cable TIE Slip Rings Ranger 10,000 & Ranger 10,000 Plus Printed Circuit Board Removal Replacement Figure F.10 Printed Circuit Board Location Printed Circuit Board Removal and Replacement Printed Circuit Board Removal Replacement Ranger 10,000 & Ranger 10,000 Plus Output Rectifier Bridge Removal Replacement Output Rectifier Bridge Removal Remove the case top, then reinstall the fuel cap Section TOC Ranger 10,000 & Ranger 10,000 Plus Instructions ENGINE/ROTOR Removal and Replacement Figure F.12 Component LOCATIONS, ENGINE/ROTOR Removal ENGINE/ROTOR Removal Engine and Rotor Removal Procedure Figure F.13 Engine and Rotor Removed from Stator THRU-BOLT Rotor Removal Procedure Reassembly Procedure Replacement KIT S20788 Retest After Repair Section G-1 Electrical Diagrams SectionElectrical Diagrams Wiring Diagram Code 11041 only -M20226 Electrical Diagrams Ranger 10,000 Honda Wiring Diagram Code 11095 only M20301 Ranger 10,000 Wiring Diagram Code 11398 M21269 Ranger 10,000 Plus L13105 Schematic Entire Machine Codes 11395 and 11398 L13105 L13103 Schematic Entire Machine CDE 11394 L13103 Schematic Entire Machine Code 11095 & 11253 only L12257 L12249 Schematic Entire Machine Code 11151 only L12249-1 Electrical Diagrams Electrical Diagrams