Lincoln Electric SVM134-A service manual Main Generator Frame Removal

Page 85

F-41

F-41

TROUBLESHOOTING & REPAIR

TOC

TOC

 

MAIN GENERATOR FRAME REMOVAL

Section

Master

 

AND REPLACEMENT (continued)

 

FIGURE F.19 – FRONT PANEL WIRING CONNECTIONS

Return to

Return to

 

14. BLACK LEAD TO

 

 

 

 

 

 

 

 

IDLER PC BOARD

 

 

 

 

18. WHITE LEAD

 

 

 

 

 

 

22. BROWN LEAD TO

 

 

21. YELLOW LEAD

 

IDLER SWITCH

 

 

TO IDLER SWITCH

 

 

TOC

TOC

 

 

 

to Section

to Master

17. RED LEADS TO

C

D

A

B

IGNITION SWITCH

 

 

16. "H" LEAD TO

 

{ 20.19. BLUE AND BLACK

Return

Return

 

START BUTTON

E

 

 

LEADS TO AMMETER

 

 

 

 

 

15. SHUNT LEADS

 

13. RED LEAD TO

 

 

QUICK DISCONNECT

 

 

 

 

DC RECEPTACLE

 

 

 

 

 

 

13.

Using the slot head screw driver, remove the

18. Remove the white lead from the idler PC

TOC

TOC

 

red lead connecting the 115VDC receptacle

 

board. See Figure F.19 and the Wiring

 

to the DC exciter. See Figure F.19 and the

 

Diagram.

 

 

 

 

Section

Master

 

Wiring Diagram. Cut any necessary cable

19.

Using the 3/8” nut driver, remove the blue

 

ties.

 

 

lead from the ammeter. Label for reassem-

 

 

 

 

 

 

 

 

 

 

 

14.

Remove the black lead connecting the idler

 

bly. See Figure F.19 and the Wiring Diagram.

to

to

 

PC board to the DC exciter. See Figure F.19

20.

Using the 3/8” nut driver, remove the black

 

and the Wiring Diagram. Cut any necessary

Return

Return

 

 

 

lead from the ammeter. Label for reassem-

 

cable ties.

 

 

 

 

 

 

 

 

 

bly. See Figure F.19 and the Wiring Diagram.

 

 

 

 

 

 

 

15. Disconnect the blue and brown main shunt

21. Label and remove the yellow lead from the

 

 

 

leads from their quick disconnect splices.

 

 

 

 

idler switch. The yellow lead connects the

 

 

 

See the Wiring Diagram.

 

 

 

 

 

idler switch to the oil pressure switch. See

 

 

 

 

 

 

 

16. Disconnect the “H” lead from the START but-

 

Figure F.19 and the Wiring Diagram.

 

 

 

ton switch. See Figure F.19 and the Wiring

22. Label and remove the brown lead from the

 

 

 

Diagram.

 

 

 

 

idler switch. The brown lead connects the

 

 

 

 

 

 

 

17.

Remove the two red leads from the ignition

 

idler switch to the idler solenoid. See Figure

Return to Section TOC

Return to Master TOC

 

switch. Label for reassembly. See Figure

 

F.19 and the Wiring Diagram.

 

F.19 and the Wiring Diagram.

 

 

 

CLASSIC I

 

 

 

 

 

 

 

Page 84 Page 86
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Page 84 Page 86
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 InstallationLocation and Ventilation Safety PrecautionsStoring 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 Operation Safety InstructionsOperating 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 ControlsBefore Starting the Engine Engine OperationStarting the Engine Cold Weather Starting Stopping the EngineBREAK-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 Theory of Operation BATTERY, STARTER, Engine Alternator and OIL Switch CircuitGeneral Description Excitation Flashing ENGINE, Main Generator Armature and Frame and DC ExciterMain SHUNT, Interpole and Series Coils Current Range Selector Fine Current AdjustmentEngine 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 ProceduresObserve Safety Guidelines Troubleshooting GuideDetailed 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 Test Description DC Exciter TestMaterials 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 Normal Open Circuit Voltage Waveform 115VDC Supply Scope SettingsHigh 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 Reassembly DC Exciter Armature Removal ProcedureDC 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
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