Craftsman 30084N Operation Manual - Page 30

Troubleshooting - Waviness Of Bead, Troubleshooting - Distortion

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Page 30 highlights

6-14. Troubleshooting - Waviness Of Bead Waviness Of Bead - weld metal that is not parallel and does not cover joint formed by base metal. Possible Causes Corrective Actions Welding wire extends too far out of nozzle. Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle. Unsteady hand. Support hand on solid surface or use two hands. 6-15. Troubleshooting - Distortion Base metal moves in the direction of the weld bead. Distortion - contraction of weld metal during welding that forces base metal to move. Possible Causes Excessive heat input. Corrective Actions Use restraint (clamp) to hold base metal in position. Make tack welds along joint before starting welding operation. Select lower voltage range and/or reduce wire feed speed. Increase travel speed. Weld in small segments and allow cooling between welds. S-0641 S-0642 OM-194 199 Page 27

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OM-194 199 Page 27
6-14.
Troubleshooting – Waviness Of Bead
Waviness Of Bead – weld metal that is not parallel and does not cover
joint formed by base metal.
S-0641
Possible Causes
Corrective Actions
Welding wire extends too far out of nozzle.
Be sure welding wire extends not more than 1/2 in (13 mm) beyond nozzle.
Unsteady hand.
Support hand on solid surface or use two hands.
6-15.
Troubleshooting – Distortion
Distortion – contraction of weld metal during welding that forces
base metal to move.
Base metal moves
in the direction of
the weld bead.
S-0642
Possible Causes
Corrective Actions
Excessive heat input.
Use restraint (clamp) to hold base metal in position.
Make tack welds along joint before starting welding operation.
Select lower voltage range and/or reduce wire feed speed.
Increase travel speed.
Weld in small segments and allow cooling between welds.