Aside from this post seal, no special instructions are required in rebuilding this type of Willard battery. A 3/4 inch drill is needed for drilling off the connectors. When the plates have been lifted out of the jars, and are resting on the jar to drain, and while the compound and cover are still hot, remove the cover by placing your fingers under it and pressing down on the posts with your thumbs.
With a narrow screw driver or a knife, clean out all of the old compound from the wells around the posts, and also remove the compound from the under side of the cover which fits into the post wells.
In reassembling the battery first try on the covers to see that they will fit in the post wells. Then remove the covers again and heat them with a soft flame. Then heat the post wells perfectly dry with a soft flame. Pour the post wells nearly full of compound, and quickly press the cover into position.
Willard Batteries With Lead Inserts In Covers
The types SJWN and SJRN Willard batteries have lead inserts in the cover post holes, as shown in Mg. 278, the inserts being welded to the posts. For removing the connectors and for separating the post from the cover insert, the Willard Company furnishes special jigs and forms. The work may also be done without these jigs and forms, as will be described later.
When the special jigs and forms are used, the work is done, as follows:
1. Place Willard drill jig Z-72 (Fig. 279) over the connector, and with a 13/16 inch drill, bore down far enough to release the connector from the post (Fig. 279).
2. File off the post stub left by drilling. This will give a flat surface on top of the cover insert and will make it easier to center the drill for the next operation.