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ALFA IN a.s. ©
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INSERTING THE WIRE TO THE TORCH AND CONNECTION OF EARTH
CABLE
1. Connect the earthling clamps to the welder or to the welding table.
2.
Notice
When inserting the wire do not point with torch to the eyes!
3. Screw the central end of the torch
B2
to connector
B1
on the machine
while the machine is turned off.
4. Remove the gas nozzle from the torch.
5. Unscrew the current nozzle.
6. Connect the machine to power supply.
7. Turn the ON/OFF switch to ON.
8. Press button
A10
in the space of wire feeder to run the motor of the feeder.
The welding wire is fed into the torch. After coming off from the torch tube,
screw the current nozzle and gas nozzle on.
9. Before welding, spray the area in a gas hose and current nozzle with a
separation spray, to prevent damage.
ADJUSTMENT OF GAS FLOW
The electric arc and the weld must be perfectly shielded by gas. Too small
amount of gas does not perform the protective atmosphere and on the other
hand to big amount of the gas brings air into the electric arc.
Notice
Gas bottle must be well secured against fall. This manual does
not solve the safe securing of gas bottle. Information can be obtained from a
supplier of industrial gases.
1. Fit the gas hose to the outlet on the back panel of the machine.
2. Press button
V1
(pic. 7) on the main panel to the switching of the gas valve.
If you hold the button for less than 3 s, after releasing the button, the gas
valve will turn off. If you hold the button for more than 3 s, it will turn off the
gas valve after about 20 s, or after pressing any button.
3. Turn the adjusting screw
F7
at the bottom side pressure reducing valve,
until the meter
F6
shows the required flow, then release the button. The
optimum flow is 10-15l/min.
4. After long-term shutdown of the machine or replacement of the torch it is
suitable to blow the pipes with protective gas before welding.
Fig. 6 – Gas flow setting
