As in the former case, the parts are
so interlocked that it is impossible to introduce carbide or water without
first allowing the escape of the gas in the generator.
It is required by the insurance rules that the entire change of carbide
while in the generator be held in such a way that it may be entirely
removed without difficulty in case the necessity should arise.
Generators should be cleaned and recharged at regular stated intervals.
This work should be done during daylight hours only and likewise all
repairs should be made at such a time that artificial light is not needed.
Where it is absolutely necessary to use artificial light it should be
provided only by incandescent electric lamps enclosed in gas tight globes.
In charging generating chambers the old ash and all residue must first be
cleaned out and the operator should be sure that no drain or other pipe has
become clogged. The generator should then be filled with the required
amount of water. In charging carbide feed machines be careful not to place
less than a gallon of water in the water compartment for each pound of
carbide to be used and the water must be brought to, but not above, the
proper level as indicated by the mark or the maker's instructions. The
generating chamber must be filled with the proper amount of water before
any attempt is made to place the carbide in its holder. This rule must
always be followed.
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