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ALFA IN a.s. ©
www.alfain.eu
Picture
6
- Connection of torch
B1
EURO connector, in pic. 1 position A1
B2
EURO connector male
B3
Torch
C1
Earthling cable, in pic. 1 position A21
C2
Earthling clamps
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 (pic. 1)
A2
on the main panel. 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.