Helvi MULTITECH 365 Manual De Uso página 23

Wire pushes torch back from the
workpiece
Poor quality welds
Weld deposit "stringy" and in-
complete
Weld deposit too thick
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
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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