e covers must be limp and
the 1 compound must be soft before turning off the steam.
Hot Water. The electrolyte is poured out of the battery, which is then
inverted in a vessel of hot water. This method is slower than the
others, and is more expensive because it requires a larger volume of
water to be heated.
Hot Putty Knife and Screwdriver. The compound may be dug out with a
hot putty knife. This is a slow, unsatisfactory method in most
instances, especially in those batteries which use a considerable
amount of sealing compound. With some batteries using only a small
quantity of compound, a heated putty knife may be run around the
inside of the jar between the jar and the cover. This will break the
joint between the cover and the jar, and allow the plates to be lifted
out. The compound is then scraped from covers and inside of jars,
heating the knife or screwdriver whenever it cools off.
Lead Burning Flame. Any soft lead burning flame may be used. Such a
flame may be adjusted to any desired size. Where steam is available, a
flame should, however, never be used. The temperature of the flame is
very high, and the covers, jars, case, posts, and vent plugs may be
burned and made worthless. Even for the expert repairman, a flame is
not as satisfactory as steam.
The Gasoline Torch. This is the most unsatisfactory method, and should
not be used if possible. The torch gives a hot, spreading flame and it
is difficult to prevent the covers, jars, case, etc., from being
burned. Do not use a gasoline torch if you can possibly avoid doing
so. Alcohol torches are open to the same objections, and are not
satisfactory, even in the hands of a highly skilled workman.
If a flame is used for heating the compound, be sure to blow out with
a hand bellows or compressed air any gas that may have gathered above
the plates, before you bring the flame near the battery.
Electric Heat. Special electric ovens for softening sealing compound
are on the market. The heating element is brought close to the top of
the battery. Where electric power is cheap, this method may be used.
Otherwise it is rather expensive.
[Fig. 197 Resting element on jar to drain]
When the sealing compound has been softened, place the battery on the
floor between your feet. Grasp the two posts of one cell with pliers,
and pull straight up with an even, steady pull. If the battery has
been steamed long enough, the plates will come up easily, carrying
with them
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