Lincoln Electric V155-S service manual Replacement Quick Disconnect Plug for Stick Electrode Cable

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A-6

INSTALLATION

A-6

REPLACEMENT QUICK DISCONNECT PLUG (FOR

STICK ELECTRODE CABLE)

The INVERTEC® V155-S comes with a factory assem- bled stick electrode holder, cable and Twist-Mate™ adapter plug. If a replacement cable is ever needed a K852-25 Twist-Mate™ plug will be needed.

To attach the K852-25 plug:

1.Cut off welding cable lug, if present.

2.Remove .75 in. (19mm) of welding cable insulation.

3.Slide rubber boot onto cable end. The boot end may be trimmed to match the cable diameter. Use soap or other nonpetroleum-based lubricant to help slide the boot over the cable, if needed.

BOOT

WELDING CABLE

.75 in.

19 mm

TRIM, IF REQ'D

TO FIT OVER CABLE

4.Cut 45-50% of the copper strands back 1/4” (6 mm).

5.Fold copper strands over cut strands and insert into

WELDING CABLE

.25 in. 6 mm

ferrule.

6. Slide the copper ferrule into the brass plug.

COPPER FERRULE

WELDING CABLE

.50 in. max 12 mm max.

7.Tighten set screw to collapse copper tube. Screw

SET SCREW

BRASS PLUG

COPPER TUBE

must apply pressure against welding cable. The top of the set screw will be well below the surface of the brass plug after tightening.

INVERTEC® V155-S

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Contents Invertec V155-S Electric Magnetic Fields SafetyFor Engine Electric Shock can kill ARC Rays can burn Fumes and GasesFor Electrically IiiLES Machines À Souder À Précautions DE SûretéPrécautions DE Sûreté Pour Transformateur ET ÀElectromagnetic Compatibility EMC L10093 3-1-96H Master Table of Contents for ALL Sections Table of Contents Installation Section Installation Operating Temperature Range Storage Temperature RangeSelect Suitable Location Safety PrecautionsInput Connections Tilting120V Input Input Power Connection230V Input Engine Driven GeneratorStick Welding Smaw Output ConnectionsTIG Welding Replacement Quick Disconnect Plug for Stick Electrode Cable Table of Contents Operation Section General Description Safety InstructionsTheory of Operation Welding CapabilityFunction FeaturesControls and Operational OFFRear Control Panel Auto Adaptive ARC ForceWith Stick Welding Table of Contents Accessories Section Accessories Cable Plugs Compatible EquipmentTable of Contents Maintenance Section Routine Maintenance MaintenanceInput Filter Capacitor Discharge Procedure Thermal ProtectionMajor Component Locations Figure D.1 Major Component LocationsInvertec V155-S 1TABLE of CONTENTS-THEORY of Operation Section E-1 Figure E.2 General Description Input Board Figure E.3 Input BoardMain Inverter Board Figure E.4 Main Inverter BoardControl Board Figure E.5 Control BoardInsulated Gate Bipolar Transistor Igbt Operation Figure E.6 Igbt OperationSec 31 m/sec 33 m/sec Pulse Width ModulationMinimum Output Maximum OutputInvertec V155-S 1TABLE of Contents Troubleshooting & Repair F-1 Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Electric ShockResistance Test Perform Inverter Board Voltage Test Machine has high welding Test Description 7TROUBLESHOOTING & REPAIRF-7Case Cover Removal Procedure Materials NeededProcedure Disconnect power to the Invertec V155-S9TROUBLESHOOTING & REPAIRF-9 Input Filter Capacitor Discharge Procedure 11TROUBLESHOOTING & REPAIRF-11 Figure F.4 Capacitor Discharge LocationsInvertec V155-S 13TROUBLESHOOTING & REPAIRF-13 Input Board Resistance TestDC+ 15TROUBLESHOOTING & REPAIRF-15 Inverter Board Resistance TestFigure F.6 Inverter Board Test Points Inverter Board Resistance Test Invertec V155-S 19TROUBLESHOOTING & REPAIRF-19 Input Board Voltage Test20TROUBLESHOOTING & REPAIRF-20 PWR 2white to PWR 1blue to PWR 4white to PWR 3blue to21TROUBLESHOOTING & REPAIRF-21 Figure F.9 Main Switch Plug LocationInvertec V155-S 23TROUBLESHOOTING & REPAIRF-23 Inverter Board Voltage TestFigure F.10 Plug JP1 Testpoints 25TROUBLESHOOTING & REPAIRF-25 Input Board Removal and Replacement ProcedureAC2 27TROUBLESHOOTING & REPAIRF-27 Inverter Board Removal and Replacement ProcedurePerform the Case Cover Removal Procedure 29TROUBLESHOOTING & REPAIRF-29 Figure F.13 Inverter Board RemovalInvertec V155-S 31TROUBLESHOOTING & REPAIRF-31 Control Board Removal and Replacement Procedure32TROUBLESHOOTING & REPAIRF-32 Figure F.14 Control Board RemovalOutput INPUT- Single Phase onlyRated Output Recommended Meters for Machine Output TestsInvertec V155-S Table of Contents Diagram Section Electrical Diagrams Electrical Diagrams Schematic Complete Machine Codes 11326Schematic Input PC Board Aux PotenzaPC Board Assembly Input Board Schematic Inverter PC Board Sheet #1 PTCSchematic Inverter PC Board Sheet #2 FEED-FORWARDPC Board ASSEMBLY- Inverter Board Sheet # PC Board Assembly Inverter Board Sheet #2 Schematic Control PC Board U1APC Board Assembly Control Board page Sheet #1 See Page 2 for more detailed component informationPC Board Assembly Control Board Sheet #2
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