Chicago Electric 95424, 95629 manual Wire feed motor does not run MIG welding only, Nozzle Plugged

Page 39

Troubleshooting (continued)

Important!

Be CERTAIN to shut off the Welder, disconnect it from power, and discharge the torch to ground before adjusting, cleaning, or repairing the unit.

Wire feeds, but shielding gas does not flow (MIG welding only)

Possible Causes and Solutions

1.Empty Gas Cylinder: Check gas cylinder.

2.Nozzle Plugged:

Clean nozzle. If damaged, replace.

3.Regulator or cylinder valve closed:

Make sure both valves are adjusted properly.

4.Gas line blocked:

Check external hose, and hose within Torch cable.

5.Gas solenoid broken or not connected properly: Have a qualified technician check/replace.

Wire feed motor does not run (MIG welding only)

Possible Causes and Solutions

1.If beeping is heard, the wire is likely jammed somewhere in the torch, cable, or wire feed mechanism.

Carefully examine welding wire and welding wire route to determine the cause of the jam. Whenever possible, keep the welder off while the jam is being remedied to help prevent injury when the wire restarts.

2.(Model 95424 only.) Wire Feed Speed Knob (3C) in stick (arc) position. Change knob setting to proper speed.

Electrode Fuses to Work (Stick/Arc welding, model 95424, only)

Possible Causes and Solutions

1.Electrode too close to workpiece:

Hold electrode slightly farther from workpiece.

2.Moist or damaged electrodes:

Use dry electrodes that have been stored correctly.

If the steps above do not solve the problem or if the repairs involved are too

complex, contact a qualified technician.

SKU 95424, 95629 For technical questions, please call 1-800-444-3353.

Page 39

Image 39

Contents For technical questions or replacement parts, please call Assembly And Operation InstructionsContents Specifications Please NoteSave this Manual General Safety Rules Electrical SafetyWork Area Tool USE and Care Personal SafetyService Specific Safety RulesIndustrial applications must follow Osha guidelines Page Welding Produces toxic fumes and gasses Inhalation HazardCylinders can explode when damaged Symbology GroundingExtension Cords Stationary Mobile Assembly InstructionsUnpacking Attaching the WheelsSee , above right See , above left Installing a Wire Spool For use with a 7 SpoolFor use with a 11 Spool Routing the Wire Figure B Exercise Extreme Caution Risk of Fire AND/OR Electric Shock See Figure F Changing Wire SettingsAttaching the Ground Cable with Clamp Attaching the Electrode Cable Arc Welder OnlySee illustration, bottom right Setting Polarity for Welding TypeSee illustration, top right initial Setup Set for Electrode Negative Dcen for gasless flux core wireFigure G Installing a Gas CylinderUnderstanding Duty Cycle Duration of Use Other settings fall between these two rangesOperating Instructions Before You Begin WeldingVoltage Selector Knob 5C Setting Up the WeldSee Figure K MIG Welding Set UpArc Stick Welding Set Up for Model 95424 Only See Figures K & JFigure J MIG Weld Settings ChartStarting a weld arc for stick arc welding only Arc Stick Welding Set Up , for Model 95424 OnlySee Figure L MIG welding only When the Weld is CompletedOr more for .030Tips .067 or more for .045Tips INSPECTION, MAINTENANCE, and CleaningNozzle Inspection, Cleaning, and Replacement MIG Only ContactTip Inspection, Cleaning, and Replacement MIG OnlyReplacing the Welding Torch Liner MIG Only WarrantyParts List a Parts Lists and DiagramsAssembly Diagrams Power Block #32A Assembly DiagramsFigure N Front Panel #23AFigure O Wire Drive Assembly #16AFigure P Gun SB 25 #20AControllerBlock BCN-4U MIG/Arc Welder 95424 Electrical SchematicMIG Dual Welder 95629 Electrical Schematic Page Welding arc not stable TroubleshootingWelder does not function when switched on Weak arc strengthTroubleshooting Wire feeds, but arc does not ignite MIG welding onlyGas line blocked Wire feed motor does not run MIG welding onlyNozzle Plugged Regulator or cylinder valve closed