Chicago Electric 95629 Wire feeds, but arc does not ignite MIG welding only, Troubleshooting

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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 feed motor runs but wire does not feed (MIG welding only)

Possible Causes and Solutions

1.Insufficient wire feed pressure:

Increase wire feed pressure properly - follow instructions on page 14 - 17.

2.Incorrect wire feed roll size:

Replace with the proper one - follow the Installing The Wire Spool instructions on page 14.

3.Damaged torch, cable, or liner assembly:

Have a qualified technician inspect these parts and replace as necessary.

Wire creates a bird’s nest during operation (MIG welding only)

Possible Causes and Solutions

1.Excess wire feed pressure:

Adjust wire feed pressure properly - follow instructions on page 14 -17.

2.Incorrect contact tip size:

Replace with the proper tip for the wire size used.

3.Gun end not inserted into drive housing properly:

Loosen gun securing bolt and push gun end into housing just enough so that it does not touch wire feed mechanism.

4.Damaged liner:

Have a qualified technician inspect and repair/replace as necessary.

Wire feeds, but arc does not ignite (MIG welding only)

Possible Causes and Solutions

1.Improper ground connection:

Make certain that the workpiece is contacted properly by the Ground Clamp and that the workpiece is properly cleaned near the ground clamp and the welding location.

2.Improperly sized or excessively worn Contact Tip (2E):

Verify that Contact Tip (2E) is the proper size for the welding wire used. Check that the hole in the tip is not deformed or enlarged. Also, check that the tip is not dirty; this would prevent a good connection. If needed, replace Contact Tip (2E) with proper size and type.

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.

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Contents Assembly And Operation Instructions For technical questions or replacement parts, please callContents Save this Manual SpecificationsPlease Note Work Area General Safety RulesElectrical Safety Personal Safety Tool USE and CareIndustrial applications must follow Osha guidelines ServiceSpecific Safety Rules Page Inhalation Hazard Welding Produces toxic fumes and gassesCylinders can explode when damaged Extension Cords SymbologyGrounding Attaching the Wheels Assembly InstructionsUnpacking Stationary MobileSee , above right See , above left For use with a 11 Spool Installing a Wire SpoolFor use with a 7 Spool Routing the Wire Figure B Exercise Extreme Caution Risk of Fire AND/OR Electric Shock Attaching the Electrode Cable Arc Welder Only Changing Wire SettingsAttaching the Ground Cable with Clamp See Figure FSet for Electrode Negative Dcen for gasless flux core wire Setting Polarity for Welding TypeSee illustration, top right initial Setup See illustration, bottom rightInstalling a Gas Cylinder Figure GBefore You Begin Welding Other settings fall between these two rangesOperating Instructions Understanding Duty Cycle Duration of UseSetting Up the Weld Voltage Selector Knob 5CSee Figures K & J MIG Welding Set UpArc Stick Welding Set Up for Model 95424 Only See Figure KMIG Weld Settings Chart Figure JArc Stick Welding Set Up , for Model 95424 Only Starting a weld arc for stick arc welding onlyWhen the Weld is Completed See Figure L MIG welding onlyContactTip Inspection, Cleaning, and Replacement MIG Only INSPECTION, MAINTENANCE, and CleaningNozzle Inspection, Cleaning, and Replacement MIG Only Or more for .030Tips .067 or more for .045TipsWarranty Replacing the Welding Torch Liner MIG OnlyParts Lists and Diagrams Parts List aAssembly Diagrams Assembly Diagrams Power Block #32AFront Panel #23A Figure NWire Drive Assembly #16A Figure OGun SB 25 #20A Figure PMIG/Arc Welder 95424 Electrical Schematic ControllerBlock BCN-4UMIG Dual Welder 95629 Electrical Schematic Page Weak arc strength TroubleshootingWelder does not function when switched on Welding arc not stableWire feeds, but arc does not ignite MIG welding only TroubleshootingRegulator or cylinder valve closed Wire feed motor does not run MIG welding onlyNozzle Plugged Gas line blocked
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