Stainless Steel Welding - ELLETRO PRO MIG Manual De Instrucciones

•
Insert the sheath into the adapter (after removing the
iron tube which was fitted inside the adapter).
•
Cut the liner diagonally so that it stays as close as
possible to the wire drive roller. Use drive rollers that are
suitable for aluminium wire. The drive rollers, when
being installed, must not be tightened too much.
•
Use contact tips that are suitable for aluminium wire
and make sure that the diameter of the contact tip hole
corresponds to the wire diameter that is going to be
used.
•
Use abrasive grinders and tool brushes specifically
designed for aluminium. Never use these tools on other
materials.
REMEMBER that cleanliness equals quality.
•
The wire spools must be stored in plastic bags with a
dehumidifier.
•
See the figure 2 for the correct torch inclination.

3.3 STAINLESS STEEL WELDING

The machine will be set-up as for mild-steel welding
except for following changes :
•
Stainless steel wire compatible with the composition
of steel to be welded.
•
Cylinder containing a mixture of 98% ARGON + 2%
CO (recommended mixture).
2
Recommended torch inclination and welding direction
are shown in the figure 2.
Remember to switch off the machine or to close the gas
cylinder when the welding is finished.
3.4 REGULATIONS OF THE INTERMEDIATE PANEL
To regulate the printed circuit card see figure 3, where
you will find the switch and the potentiometers:
1. Post-gas setting.
2. Burn-back setting.
3. Gas/wire test
4 MAINTENANCE AND CHECK UP
4.1 GENERAL NOTES
•
WARNING : ELECTRIC SHOCK CAN KILL. Do not
touch live electrical parts.
•
Turn off the power source and remove input power
plug from receptacle before, inspection, maintenance,
servicing.
• MOVING PARTS can cause serious injury. Keep
away from moving parts.
• HOT SURFACES can cause severe burns.
•
Allow cooling the unit before servicing.
•
Periodically clean the transformer or diodes from any
dust or foreign bodies; for this purpose, use a dry and
clean air jet.
•
When reinstalling the drive roll, ensure that the
groove is aligned with the wire and that it corresponds to
the diameter of the wire used.
•
Keep the inside of the gas nozzle (41) constantly
clean so as to avoid metal bridges formed by welding
spatter between the gas nozzle and the contact tip.
Make sure that the contact tip (43) outlet has not
widened, if so, replace it.
•
The torch must not be banged or violently knocked.
4.2 WELDING MACHINE SERVICING
Experience has shown that many fatal accidents
originated from servicing improperly executed. For this
reason, a careful and thorough inspection on a serviced
welding machine is just as important as one carried out
on a new welding machine.
Furthermore, in this way producers can be protected
9
from being held responsible for defects stemming from
repairs not carried out by the manufacturer.
4.2.1 Prescriptions to follow for servicing :
• After rewinding the transformer or the inductance,
the welding machine must pass the applied-voltage test
in accordance with indications in table 2 of 6.1.3 of the
EN 60974 standard (CEI 26.13).
Conformity must be checked as specified in 6.1.3.
• If no rewinding is done, a welding machine which
has been cleaned and/or reconditioned must pass an
applied-voltage test with voltage values equal to 50% of
the values given in table 2 of 6.1.3. Conformity must be
checked as specified i n 6.1.3.
• After rewinding and/or the replacements of the no-
load voltage should not exceed the values given in 10.1
of EN 60974.
•
If the servicing is not done by the manufacturer, the
repaired welding machines
replacements or modifications of any component, shall
be marked in a way such that the identity of the person
having serviced it is clear.
4.2.2 Instruction to be followed after all repair work
•
Following any repair work, great care must be taken
when refitting cables and wires to ensure safe and
proper insulation between the primary and secondary
sides of the machine.
•
When refitting wires and cables, ensure that wires
cannot come in contact with moving part or those parts
which heat up during operation.
•
Refit clips and straps in their original position and in
such a way that any accidental cable breakage or
disconnection will not lead to a dangerous contact
between the primary and secondary circuits.
which underwent