It is also necessary that all automatic water seals
and valves, as well as any other water tanks, be filled with clean water
at this time.
Never recharge with carbide without first cleaning the generating chamber
and completely refilling with clean water. Never test the generator or
piping for leaks with any flame, and never apply flame to any open pipe or
at any point other than the torch, and only to the torch after it has a
welding or cutting nozzle attached. Never use a lighted match, lamp,
candle, lantern, cigar or any open flame near a generator. Failure to
observe these precautions is liable to endanger life and property.
_Operation and Care of Generators._--The following instructions apply
especially to the Davis Bournonville pressure generator, illustrated in
Figure 11. The motor feed mechanism is illustrated in Figure 12.
Before filling the machine, the cover should be removed and the hopper
taken out and examined to see that the feeding disc revolves freely; that
no chains have been displaced or broken, and that the carbide displacer
itself hangs barely free of the feeding disc when it is revolved. After
replacing the cover, replace the bolts and tighten them equally, a little
at a time all around the circumference of the cover--not screwing tight in
one place only. Do not screw the cover down any more than is necessary to
make a tight fit.
To charge the generator, proceed as follows: Open the vent valve by turning
the handle which extends over the filling tube until it stands at a right
angle with the generator.
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