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connection exists
Earth cable
Check if the earth cables are well fixed
and not short circuited.
Check if this welding equipment is well
grounded
6.5.
Troubleshooting guide for semiautomatic welding equipment
Problem
Wire feed motor
little pressure on wire feed rolls.
operates, but wire
Incorrect wire feed rolls.
does not feed.
Wire spool brake pressure too
high.
Restriction in the gun and/or
assembly.
Wire curling up in
Too much pressure on wire feed
front of the wire
rolls.
feed rolls (bird
Incorrect cable liner or gun
nesting)
contact tip size.
Gun end not inserted into drive
housing properly.
Dirty or damaged (kinked) liner.
Welding arc not
Wire slipping in drive rolls.
stable.
Wrong size gun liner or contact
tip.
Incorrect voltage setting for
selected wire feed speed on
welding power source.
Loose connections at the gun
weld cable or work cable.
Gun in poor shape or loose
connection inside gun.
7. TROUBLESHOOTING
7.1.
Excessive spatter
Possible Causes
Wire feed speed too high.
Voltage too high.
Electrode extension (stickout) too
EN
Probable Cause
Excessive Spatter - scattering of molten metal particles that
cool to solid form near weld bead.
Select lower wire feed speed.
Select lower voltage range.
Use shorter electrode extension (stickout).
possible electric shock.
Remedy
Increase pressure setting on wire feed rolls.
Check size stamped on wire feed rolls,
replace to match wire size and type if
necessary.
Decrease brake pressure on wire spool.
Check and replace cable, gun, tip adapter,
and contact tip if damaged. Check size of
contact tip and cable liner, replace if
necessary
Decrease pressure setting on wire feed
rolls.
Check size of contact tip and check cable
liner length and diameter, replace if
necessary.
Loosen gun securing bolt in drive housing
and push gun end into housing just enough
so it does not touch wire feed rolls.
Replace liner
Adjust pressure setting on wire feed rolls.
Replace worn drive rolls if necessary.
Match liner and contact tip to wire size and
type.
Readjust welding parameters.
Check and tighten all connections.
Repair or replace gun as necessary.
Corrective Actions
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