Lincoln Electric IM579 manual Locate the #9 and #12 terminals, identified by

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D-3		D-3
	MAINTENANCE
	6. Locate the #9 and #12 terminals, identified by the	FIGURE D.3 – RESISTORS WITH LEADS
	“Discharge” labels, on each of the four Switch	CONNECTED

Boards. See Figure D.2.

7. Using insulated, needle nose-type jumper leads and insulated gloves, connect one jumper lead to one end of the resistor obtained in step 4. Connect the other jumper lead to the other end of the resistor.

8. Carefully connect the needle nose end of one of the jumper leads to terminal #9. See Figure D.3. Connect the needle nose end of the other jumper lead to terminal #12. Terminals #9 and #12 are indicated by the “Discharge” label. Leave resistor connected for 10 seconds. DO NOT TOUCH TER-

MINALS, RESISTORS, OR ANY INTERNAL MACHINE COMPONENT DURING THIS PROCE- DURE!

FIGURE D.2 – DISCHARGE LABEL

D

I

S C H A R G E

D

I

S C H A R G E

D

I

S C H A R G E

D

I

S C H A R G E

D

I

S C H A R G E

9.Check voltage across terminals (9 and 12) with a DC voltmeter. Terminal 9 has positive polarity and terminal 12 has negative polarity. Voltage should be zero. If any voltage remains, repeat this capac- itor discharge procedure.

10.Repeat discharge procedure (steps 7, 8 and 9) for each of the other three Switch Boards.

POWER WAVE 450

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Contents Invertec Power Wavetm Safety Depends on YouARC Rays can burn SafetyElectric Shock can kill Fumes and Gases can be dangerousFor Electrically pow- ered equipment Welding Sparks can cause fire or explosionCylinder may explode if damaged May be dangerous For Engine powered equipmentElectric and Magnetic Fields Précautions DE Sûreté Thank You Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Pulse Pulse and Background Current Range Voltage Range InstallationTechnical Specifications Power Wave Input Connections Safety PrecautionsHigh Frequency Precautions Select Suitable LocationInput Fuse and Supply Wire Considerations Input Voltage Reconnect ProcedureInput Power Connections Ground ConnectionsWork and Electrode Cable Connections Wire Feeder ConnectionsOutput Connections Water Cooler ConnectionsOperating Instructions Safety InstructionsOperation Fumes and Gases can beSelect your process information Save process information if desiredSynergic Welding Design Features and AdvantagesOperational Features and Controls Recommended ProcessesControls and Settings Case Front ControlsOverview Installing AN OverlayOperating Overlays Name Overlay TypesOverlay PULSE, GMAW, FCAW, and STICK/TIG Process Selection Overlay Overlay ID Number =Operation Then Weld from Memory Overlay Memory Location # is EmptyWeld from MEMORY, Dual Procedure Overlay Figure B.6 Weld from MEMORY, Dual Procedure OverlayOperation Dual Wire FEEDERS, Dual Procedure Overlay Optional Position ProcedureLimits Overlay Optional Recall from Memory KEY Memory Location NumbersOperation Setup Overlay Figure B.9 Setup OverlayTable B.1 Positive Voltage Sensing Options Wire Feeder Setup DescriptionPositive Polarity Voltage Sensing Negative Polarity Voltage SensingPositive Voltage Sensing Polarity Pulse Procedures Overview of Welding ProceduresFlux Cored ARC Welding Fcaw and Gmaw Procedures STICK/TIG ProceduresExplanation of Table B.3 Pulse Welding Pulse processesOver Current Protection Overload ProtectionThermal Protection Wire Feeder Setup AccessoriesOPTIONS/ACCESSORIES Guns and CablesWater Cooler Usage Input Filter Capacitor DIS Charge Procedure MaintenanceRoutine and Periodic Maintenance Figure D.1 Resistor Locations Discharge labels, on each of the four Switch Locate the #9 and #12 terminals, identified byPreventive Maintenance Figure D.4 General Component Locations Troubleshooting HOW to USE Troubleshooting GuideSists, contact your local Lincoln Troubleshooting GuideAuthorized Field Service Facility Play fans run Check circuit breaker 5-amp Observe Safety Guidelines Controls and Settings Power-up Inspect the overlay bar code Saved in memory are different Check for proper shielding gas Wiring Diagrams Wiring DiagramNeed Welding Training? How To Read Shop DrawingsNew Lessons in Arc Welding Precaucion Aviso DE Limited Warranty