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Les langues disponibles
Les langues disponibles
Wire pushes torch back from the
workpiece
Poor quality welds
Weld deposit "stringy" and in-
complete
Weld deposit too thick
WELDING HINTS AND MAINTENANCE
•
Always weld clean, dry and well prepared material.
•
Hold gun at a 45° angle to the workpiece with nozzle about 5 mm from the surface.
•
Move the gun smoothly and steadily as you weld.
•
Avoid welding in very drafty areas. A weak pitted and porous weld will result due to air blowing away
the protective welding gas.
•
Keep wire and wire liner clean. Do not use rusty wire.
•
Sharp bends or kinks on the welding cable should be avoided.
•
Always try to avoid getting particles of metal inside the machine since they could cause short circuits.
•
If available, use compressed air to periodically clean the hose liner when changing wire spools
IMPORTANT: Disconnect from power source when carrying out this operation.
•
Using low pressure air (3/5 Bar=20-30 PSI), occasionally blow the dust from the inside of the wel-
der. This keeps the machine running cooler. Note: do not blow air over the printed circuit board and
electronic components.
•
The wire feed roller will eventually wear during normal use. With the correct tension the pressure
roller must feed the wire without slipping. If the pressure roller and the wire feed roller make contact
(when the wire is in place between them), the wire feed roller must be replaced.
•
Check all cables periodically. They must be in good condition and not cracked.
Wire feed speed too fast
Bad connection between earth
clamp and workpiece.
The workpiece is excessively
oxidized or painted.
Nozzle clogged
Torch held too far from the
workpiece
Insufficient gas at weld area
Rusty, painted, damp, oil or greasy
workpiece
Rusty or dirty wire
Poor ground contact
Incorrect gas / wire combination
Torch moved over workpiece too
quickly
Gas mixture incorrect
Torch moved over workpiece too
slowly
Welding voltage too low
EN-12
Decrease wire feed speed
Clean and deoxidate the contact
area of the earth clamp.
Brush carefully the point to be
welded.
Clean or replace nozzle
Hold the torch at the right distance
Check that the gas is not being
blown away by drafts and if so
move to more sheltered weld
area. If not check gas cylinder
contents gauge, regulator setting
and operation of gas valve.
Ensure workpiece is clean and dry.
Ensure wire is clean and dry.
Check ground clamp/workpiece
connection
Check on the manual for the
correct combination.
Move the torch slower
See shielding gas table
Move the torch faster
Increase welding voltage
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