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4.3 TROUBLE SHOOTING GUIDE
Trouble
•
The welding machine supplies
limited current.
•
Welding with a lot of metal spatter.
•
The
wire
jams
between the drive rolls and the
torch in feed wire guide.
•
No wire feed or irregular wire feed.
•
Porosity in the welding seam.
8
→Line fuse blown.
→Burnt out diode or diodes.
→Burnt out electronic board.
→Loosened torch or earth connection
or
any
connection.
→Voltage adjustment switch has a
loose contact.
→Improper adjustment of
parameters.
→Insufficient grounding.
→Contact tip with wrong diameter.
or
entangles
→Misalignment
groove.
→Inlet wire guide out of position.
→Obstructed or clogged liner.
→Drive roll with too large a groove.
→Obstructed or clogged line.
→Wire holding roller not completely
tightened.
→Spool holder clutch too tight.
→Clogged contact tip.
→Insufficient shielding gas.
→Excess oxidation of the edges to be
welded.
→Gas nozzle partially or completely
clogged by spatter.
Possible cause
other
electrical
power
welding
of
the
drive
Solution
Replace line fuse.
Replace the pieces.
Replace it.
Tighten all connections.
Replace the switch.
Select the correct parameters through
the welding-voltage potentiometer and
the
wire-speed
potentiometer.
Check grounding connections.
Replace it.
Realign.
roll
Position it as close as possible to the
drive roll.
Remove and clean.
Replace the drive roll.
Remove and clean.
Tighten all the way.
Loosen
the
clutch
adjustment.
Replace.
Increase gas delivery.
Thoroughly clean the edges with a
metal brush.
Remove and clean or replace being
careful not to clog the gas outlets.
adjustment
through
the
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