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Weld diagnosis, Weld penetration, Weld not adhering properly – Harbor Freight Tools 94164 User Manual

Page 22: Bend at joint

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

troubleshooting section at end of manual.

Page 22

SKU 94164

WELD DIAGnOSIS

ExCESS OR BURn-thROUGh

Weld droops on top and

underneath, or falls through

entirely, making a hole.

pROpER

Weld is visible underneath and

bulges slightly on top.

InADEqUAtE

Weld does not contact the joint

fully, just on the surface.

Weld penetration

pOSSIBLE CAUSES AnD SOLUtIOnS

Excessive material at weld:

1.

Reduce wire feed speed.
Overheating:

2.

Increase welding speed and ensure that

welding speed is kept steady.

pOSSIBLE CAUSES AnD SOLUtIOnS

Workpieces too thick/close:

1.

Joint design must allow weld to reach

bottom of groove and allow proper welding

procedures.
Incorrect welding technique:

2.

Maintain

1

/

2

” or less stickout.

Keep arc on leading edge of weld

puddle.

Hold gun at proper angles as stated under

Holding The Torch on page 19.
Insufficient weld material:

3.

Increase wire feed speed.
Insufficient weld heat:

4.

Reduce Welding Speed.

Cross seCtions

Weld not Adhering properly

Gaps present between weld and previous bead or

between weld and workpiece. See areas below.

pOSSIBLE CAUSES AnD SOLUtIOnS

Dirty workpiece:

1.

Make certain that workpiece is clean

and free from oil, coatings, and other

residues.
Insufficient weld material:

2.

Increase wire feed speed.
Incorrect welding technique:

3.

Place stringer bead at correct place in joint.

Adjust workpiece position or weld angle

to permit proper welding at bottom of

workpiece.

Pause briefly at sides when using weave bead.

Keep arc on leading edge of weld

puddle.

Hold gun at proper angles as stated under

Holding The Torch on page 19.

Cross

seCtion

Bend at joint

pOSSIBLE CAUSES AnD SOLUtIOnS

Improper clamping:

1.

Make sure that pieces are clamped

securely in place.

Make tack welds to help hold pieces.
Excessive heat:

2.

Weld a small portion and allow to cool

before proceeding.

Reduce wire feed speed.

Increase weld speed.

Cross

seCtion