Harbor Freight Tools 55167 Weld Diagnosis Weld Penetration, Weld Not Adhering Properly

Page 19

Weld Diagnosis

Weld Penetration

Excess or burn-through

Proper

Inadequate

Weld droops on top and

Weld is visible underneath and

Weld does not contact the joint

underneath, or falls through

bulges slightly on top.

fully, just on the surface.

entirely, making a hole.

 

 

Cross Sections

Possible Causes and Solutions

1.Excessive material at weld: Reduce wire feed speed.

2.Overheating:

Increase welding speed and ensure that welding speed is kept steady.

Weld Not Adhering Properly

Gaps present between weld and previous bead or between weld and workpiece. See areas below.

Cross

Section

Possible Causes and Solutions

1.Dirty workpiece:

Make certain that workpiece is clean and free from oil, coatings, and other resi- dues.

2.Insufficient weld material: Increase wire feed speed.

3.Incorrect welding technique:

Place stringer bead at correct place in joint.

Adjust workpiece position or weld angle to permit proper welding to bottom of piece. Pause briefly at sides when using a weave bead.

Keep arc on leading edge of weld puddle.

Hold gun at proper angles as stated under Holding The Torch on page 17.

Possible Causes and Solutions

1.Workpieces too thick/close:

Joint design must allow weld to reach bot- tom of groove and allow proper welding procedures.

2.Incorrect welding technique: Maintain 1/2” or less stickout.

Keep arc on leading edge of weld pud- dle.

Hold gun at proper angles as stated under Holding The Torch on page 17.

3.Insufficient weld material: Increase wire feed speed.

4.Insufficient weld heat: Reduce Welding Speed.

Bend at joint

Cross

Section

Possible Causes and Solutions

1.Improper clamping:

Make sure that pieces are clamped se- curely in place.

Make tack welds to help hold pieces.

2.Excessive heat:

Weld a small portion and allow to cool before proceeding.

Reduce wire feed speed. Increase weld speed.

SKU 55167

For technical questions, please call 1-800-444-3353;

Page 19

Troubleshooting section at end of manual.

 

 

Image 19
Contents Welder For technical questions and replacement parts, please callContents Work Area SpecificationsGeneral Safety Rules Save This ManualPersonal Safety Electrical SafetyTool Use and Care Specific Safety Rules ServicePage Welding Produces toxic fumes and gasses Inhalation HazardPlug and Outlet Grounded Tools Tools With Three Prong PlugsSee Figure C Double Insulated Tools Tools With Two Prong PlugsProng Plug and Outlet Outlets for 2-Prong Plug See Figure C, nextFigure C Unpacking AssemblyInstalling the Wire Reel Wire Feed Roller Bracket Screws 45 Washers Trigger Switch Replacement Before You Start Welding OperationDo not Switch the Current While Welding Holding The Torch HartC EttingsS eldW Material Thickness Steel Weld Not Adhering Properly Weld Diagnosis Weld PenetrationBend at joint Excessive Spatter Porosity Crooked/wavy beadInaccurate welding Maintenance Wiring Schematic Parts Lists and DiagramsPlease Read the Following Carefully Assembly Diagram Page Welding arc not stable TroubleshootingWire feed motor runs butwire does not feed properly Wire creates a bird’s nest During operationInternal fuse blown Power switch 7a does not light when switched onTroubleshooting Faulty or improperly connected Trigger Switch 1cWeak Arc strength Wire Feeds, but arc does not ignite