35
SPECIAL TORCH WITH FLAME ARRESTER
Before lighting the special torch you must adjust the power control knob (Fig.1 # 4) so that the gas supply indicator
(Fig.1 # 20) indicates liter per hour corresponding to the burner tip used as showed Tab 2* A.
WARNING
: In case more torches are used, the liter of gas supply indicator must correspond to the sum of the liters of
each burner tip / nozzles used.
To extinguish the flame: Close by a quick movement the shut off valve (16 Tab. 6). Subsequently reopen back the
shut off valve.
Back fire: The back fire causes the permanent shut off of the flame arrester (51 Tab.6) and interrupts the gas output
from the torch. The power supply will be cut off and the gas supply indicator (Fig. 1 # 20) will move back to
zero.
The flame arrester must be replaced.
Replacement of the flame arrester: Turn off the welder, unscrew the safety cap, close the shut off valve, unscrew the
exagon and replace the flame arrester (51) and O. Ring 52-54 (See Table 6 below).
Tab. 6 - Special torch welder mod L/160
