Helvi 77611978 Mode D'emploi page 39

Gun nozzle arcs to work
surface.
Wire pushes torch back
from the workpiece
Poor quality welds
Weld deposit "stringy" and
incomplete
Weld deposit too thick
Display not clear
When welder is turned on,
the display shows ERR 1
and / or ERR2
Nozzle clogged
Torch held too far from the
workpiece
Bad connection between earth
clamp and workpiece.
The workpiece is excessively
oxidized or painted.
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
Failure of system memory.
Clean or replace nozzle
Hold the torch at the right distance
Clean and deoxidate the contact area
of the earth clamp.
Brush carefully the point to be welded.
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 con-
nection
Check on the manual for the correct
combination
Move the torch slower
See shielding gas table
Move the torch faster
Increase welding voltage
Set display controst.
Contact the service center.
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