o insure a solid joint at all
points.
In case a post is broken off under the cover, proceed as follows: To
make repairs take an old group and cut off the post about one-half way
down. Saw off the post to be repaired to such a length that when the
new post is burned on the length of the post will be approximately the
same length as the original post.
Repairing Broken Posts.
Make a half circle mould out of a piece of tin or galvanized iron, as
shown in Fig. 317. Burn solid the side of the post facing up, file it
around and then turn the group over, place the form on the burned side
and proceed to complete the burning operation.
Caution:
1. Always use clean lead.
2. Do not clean the lead and let it stand for any length of time
before starting to burn. If it is allowed to stand it will oxidize and
prevent a good burning operation.
3. Burn with an are and not with a red hot carbon.
Burning on Straps
Place the strap to be burned in a vise and split the end through the
center and then bend the two halves over to form a foot, as shown in
Fig. 318. Make a mould out of a piece of tin or galvanized iron and
place this mould around the post to which this strap is to be burned.
(Fig. 319.) Then proceed to burn the post and strap together.
[Fig. 318 Splitting end of strap, Delco-Light cell]
When a union is made between the strap and the post a small amount of
new clean lead should be burned on the top of the foot to reinforce
this point. Care should be taken not to get the mould too high, as
this will cause trouble in getting the carbon down to the foot and the
post.
[Fig. 319 Burning on negative strap, Delco-Light cell]
[Fig. 320 Auxiliary strap, Delco-Light cell]
[Fig. 321 Positioning auxiliary strap, Delco-Light cell]
How to Eliminate Burning on Straps by Use of an Auxiliary Strap
A very good way to repair broken straps without the burning operation
is to use the auxiliary strap shown in Fig. 320. This strap is slipped
over the post of the terminal or strap which is broken and the sealing
nut is then clamped down on the strap, as shown in Fig. 321. These
straps may be obtained from the Delco-Light Distributors or from the
Delco-Light factory at Dayton, Ohio.
Burning on New Plates
[Fig. 322 Burning on outside negative plate, Delco-Light cell]
When it is necessary to burn on new plates, carefully clean with a
file the lead on both the plate and the common strap
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