ET Hydrogen L/350, Инструкция по эксплуатации и техническому обслуживанию

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5) Wait for approximately two minutes, until you hear/feel the emission of gas from the burner
tip (Fig.1 # 11).
6) Light the torch with a standard lighter or an electronic igniter.
Clean the orifice (Fig. 1 # 11) with a thin steal wire or other similar safe object, in order to not
cause personal harm or damage the burner tip. You may also put the burner tip in luke warm
water for the cleaning of the orifice.
DANGER
You can adjust the flames by manually operating on the power
control knob (Fig. 1 # 4) provided that you
keep within the liter/hour limit values in the indicator, (Table 2*A / 2*B ). Setting the power level below
the minimum value allowed, will cause a pressure drop that would melt the burner tip, resulting in backfire in
the booster.
WARNING : With a full tank the welder will operate 6-8 Hours.
4.8 STOPPING THE MACHINE
To turn off the welder, you must perform the following operations:
1) Put out the flame by turning rapidly the shut-off valve
(Fig. 1 # 42) and turn power knob to the zero position.
DANGER
If
this operation is performed slowly, it can result in backfire.
2) Slide the switch (Fig.1 # 1) to the "O" p osition.
ATTENTION
After turning off the machine and throughout the necessary cooling time (approx. 5 hours) do not
unscrew the safety cap this should happen, tighten it back and start the machine for 30 seconds, with the
power control knob (Fig.1 # 4) set on the maximum value.
ATTENTION
Clean the orifice of the burner tips (Fig.1 # 43) with a thin steel wire daily, before starting the welder.
4.9 BACKFIRE
Backfire can occur for the following reasons:
- when putting the flame out and the movement
has
been performed too slowly; (on the contrary, this operation
should be done rapidly,
as
described above).
- The burner tip diameter is greater than the diameter
recommended in Table 2*A or 2*B.
-
The
gas
delivery
is
insufficient, due to wrong power setting. -
- Failure in the welder electric circuit.
- Lack of voltage in the supply cha nnels .
- Obstruction or gas leakages.
- Lack of deoxidizer.