32
SPECIAL TORCH WITH FLAME ARRESTER
Before lighting the special torch you must adjust power control knob ( Fig. l # 4) so that the gas supply indicator (
Fig. l # 12) indicates liter per hour corresponding to the burner tip used as showed Tab.2* A
(See above)
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 used
To extinguish the flame: Close by a quick movement the shut off valve (Tab.6 # 16). Subsequently reopen back
the shut off valve.
Back fire: The back fire causes the permanent shut off of the flame arrester (Tab.6 # 16) and interrupts the gas
output from the torch. The power supply will be cut off and the gas supply indicator (Fig. l # 12) will move back
to zero.
The flame arrester must be replaced
Replacement of flame arrester: Turn off the welder, unscrew the safety cap (Fig. l # 2) close the shut off valve,
unscrew the hexagon and replace the flame arrester 54 and O-ring 52 (Fig. A)
Adjust the
Power
Control Knob
and simultaneously check
the Gas Supply Indicator,
according to Min and Max
L/h (see Table 2*A)
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