d for the purpose. The cover may or may not
have been attached to the element, depending on how repairs have been
made. In either case the procedure is the same as far as sealing is
concerned. Assuming the element is attached, stand it upside down,
with the cover resting upon two strips, Fig. 242. Lay the string of
compound all around the cover channel. Now turn right side up and
insert in the jar, taking care that the jar walls enter the cover
channels at all points. Apply heat carefully to the edges of the cover
and gently force cover clown. If too much compound has been used, so
that it squeezes out around the cover, scrape off the excess with a
hot knife while forcing cover down.

Putting Cells In Case

When the covers have all been sealed, put the cells in the case,
taking care to put the negative and positive posts in their proper
positions, so that each cell connector will connect a positive to a
negative post.

In Types MHA, KXD, LXRE, and XE, which have wooden spacers between the
cells, take care that the spacers are in position and then, after
cells are in place, tighten the tie bolts with a screw driver to clamp
the jars.

In Types DX, LX, LXR, LXRV, SX, XC, XX, and XXV the cells should fit
tight in the case; pack them in with thin boards if necessary.

Burning on the Cell Connectors

See instructions on pages 213 to 216.

Charging After Repairing

See also instructions on page 373.

Not sooner than ten to fifteen hours after filling battery with
electrolyte, add electrolyte to restore level if it has fallen.

U. S. L. BATTERIES

The instructions for rebuilding batteries which have already been
given, pages 328 to 374, apply also to all U. S. L. batteries. In
working on the old U. S. L. batteries, illustrated in Fig. 243, draw
out the electrolyte down to the tops of the plates so that the
electrolyte is below the lower end of the vent tube. Then blow out any
gas which may have collected under the cover with compressed air or
bellows. Never fail to do this, as there is only a small vent hole in
the cover through which the gas can escape, the vent tubes extending
down into the electrolyte when the cells are properly filled.

[Fig. 243 Cross section of old type USL battery]

[Fig. 244 Cross section of new type USL battery]

Fig. 244 shows the new U. S. L. cover construction. Note that the
special cell filling device is no longer used. U. S. L. batteries have
lead bushings m