ET Hydrogen L/350, Operatinginstructions And Maintenance

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- Backfiring causes a detonation in the booster and if there is no deoxidizer the flame will reach the flame
arrester.
In about 20 seconds the power supply indicator will be cut off and the gas supply indicator ( Fig. 1 # 12) will
move back to zero . To restart the welder, you must perform the following operations:
1) Turn off the welder.
2) Unscrew the safety cap (Fig. 1 # 2).
3) Remove the flame arrester cap (Fig. 4 #18) and replace the flame arrester (Fig. 4 # 51) and gaskets
(Fig. 4 # 52 and 54).
4) Pour liquid deoxidizer into the Booster until it reaches the required level; reassemble and start the welder.
4.1O
SAFETY DEVICES
- Safety cap releases overpressure in excess of
Bar .
- Pressure switch: cuts off gas production when pressure exceeds 1. 7 bar.
- Flame arrester: stops the flame propagation in the tank and cuts off the gas supply.
4.11
REFILLING DE-OXIDIZER LIQUID
This operation must be performed after 6-8 working hours, o r when you see that the flame is fading and getting
shorter, refill the with additional flux.
1) Put out the flame.
2) Turn off the welder.
3) Unscrew the handle knob ( Fig. 1 # 8) .
4) Pour liquid deoxidizer into the Booster until it reaches
the maximum level by using the marked plastic sticker. (Fig.1 # 7)
5)
Reassemble the Booster cap and tighten. Do not over tighten.
4.12 REFILLING DISTILLED OR DEMINERALIZED WATER
ATTENTION
The water used up by the machine must be refilled.
The operation must be performed when the yellow indication light is on (Fig.1 # 5).
1) Slide the switch ( Fig. 1 # 1) to the "=" position.
2) With a clean funnel, pour slowly distilled or demineralized water through the filling neck (Fig. 5 # 28) until the
"MAX" red light indicator (Fig.1 # 6) is illuminated. (Do not add more water than necessary). The generator
autonomy of operation is 6-8 hours.
3) Tighten the safety cap (Fig:1 # 2) Start the· welder tor at least 2-3 minutes or for all the time necessary.