Mig/Mag Welding; Tool Replacement; Mma Process (Shielded Electrode); Tig Process - STAYER WELDING M40.18Multi Instructions D'emploi

4.1.2.2. Models M60.25/MIG250M and y M60.25T/
MIG250T
Turn equipment on. Push switch No. 22 (Mod. M60. 25) and 35
(Mod. MIG250) until the Display shows the indicator "Current".
Adjust amperes by means of group 17 and 31 (Mod. MIG250),
and set arc-force to the minimum.
4.1.2.3. Models M60.35/MIG350T and M60.50/
MIG500T
Turn equipment on. Push switch No. 22 until only the ampere
value is shown on Display No. 15. Adjust by means of group 17.

4.1.3 MIG/MAG Welding

Connect ground cable No. 2 to machine connector No. 6.
Connect torch No. 1 to the Eurotorch outlet No. 7 of the machine.
Secure the connection by screwing the safety ring of the torch
connector.
When using hollow wire (flux core, does not need gas input), it
is necessary to revert the working polarity from reverse to direct
(positive to the workpiece). FIG 6 Put on "NO GAS". Revert at
spooler rear at the other models.
4.1.3.1. M40.18Multi/MIG180Multi and M40.20
Multi/MIG200Multi
Push switch No. 13 to MIG/MAG mode ("I"). The equipment
is now regulated by means of voltage control No. 13 and wire
speed No. 14.
4.1.3.2. Models M60.25/MIG250M and M60.25T/
MIG250T
Turn equipment on. Push switch No. 22 (Mod. M60.25) until the
current and voltage indicators are shown on LCD Display No. 15
and 32 (Mod. MIG250). Upon pushing a second time, additional
MIG pulsed parameters will be armed on following screens.
4.1.3.3. Models M60.35/MIG350T and M60.50/
MIG500T
Turn equipment on. Push switch No. 22 until the current and
voltage indicators are shown on Display No. 15. Upon pushing
a second time, the Led indicator of group No. 22 starts flashing
to indicate the pulsed MIG mode. Note: If it does not flash ever,
contact the distributor for software updating.

4.2. Tool replacement

Replacement of consumables of the three execution devices:
electrode carrier for shielded electrodes, continuous wire torches
in MIG/MAG processes and tungsten-electrode torches in TIG
processes.

4.2.1 MMA process (shielded electrode)

Replace the shielded electrode utilizing the 4 pressure channels
practiced in the electrode carrier clamp to secure position and
best electric contact. Make sure that the clamp presses onto the
electrode's bare metal and that there is no false contact cutting
into the wire's coating.

4.2.2 TIG process

Here, the wear and tear element is the tungsten electrode itself of
the TIG torch. Despite its good performance, it is recommended
to avoid thorium-doped electrodes (red strip) for reasons of
absolute safety in respect of pollution as explained below.
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The electrode carrier clamps themselves and the gas conducting
nozzles suffer from wear and tear in the vicinity of the electrode.
The electrode carrier clamp will always have the same diameter
as the electrode. The nozzle will have the diameter (as indicated
by its number) indicated for the kind of work and gas consumption.
The elements are of easy manual disassembly by simple threads
and knurlings.
Do neither use nor sharpen thorium-doped tungsten
electrodes because of the risk derived from the
moderate radioactive activity. You may recognize
the presence and concentration if thorium dioxide by the
indicative strip on the electrode according to EN ISO
68848:2004 (colors: yellow, red, purple and orange). Avoid
these electrodes and use substitute products without
contents as for example electrodes with lanthanum and
cerium derivatives (strips: black, grey, blue, gold) which do
not have radioactive activity.
Prepare the electrode by sharpening the tip with the emery
stone in such a way that a cone with a height of approximately
2 times the electrode's diameter. For a better arc and current
handling capacity, the correct attack of the tip on the stone must
be longitudinal and the tip must be slightly flat.
4.2.3 MOG/MAG process
Here, the wear and tear element is the contact tip of the torch
which will be exchanged always with the same diameter as
the continuous wire being used. The nozzle of the torch will
also suffer from wear and tear due to high temperatures and
projections. The elements are of easy manual disassembly by
simple wide pitched threads. For special welding of aluminum,
contact your distributor regarding the replacement of the Teflon-
based low-friction inner conduct (liner).
The spooler mechanism No. 8 presents easy to operate
replacement of the grooved presser rollers (pulley wheels).
This is done by releasing the threaded knob that releases the
pulley wheel, the position of which may be reversed to select the
supplementary diameter (for example 0.8 mm at one side and
1.0 mm at the other). Note: Be careful not to lose the pin (of the
spooler) when releasing the pulley wheel.
The welding wire is received from its reel and installed by
introducing it into the axle of the spooler and guiding it to the
outlet of the torch through traction grooves No. 8 of the hose of
the torch No. 1 and the contact tip of the torch. The contact tip
may be accessed by removing the nozzle from the torch No. 1
by rotating it by hand.
The contact tip is removed with a fixed spanner or pliers, and it
must be of the same diameter as the welding wire. The pulley
wheels are accessed removing the pressure bearing that
releases them. Once the wire has been passed through the
pulley wheels, close the presser rollers and adjust pressure to
make the wire advance correctly without sliding and without
being crushed.
The groove of the pulley wheel must be of the same diameter as
the welding wire.
When using hollow wire, the nozzle may be removed from the
torch as it is not required. In this way it will have more visibility
and not harm the nozzle with projections.
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