Willard Gasket Type Batteries
Fig. 287 shows this type of construction, used on types SJRG and SLWG. Fig. 288 shows the seal in detail. A soft rubber gasket is slipped over the post, and the cover is pushed down over the gasket. For removing the covers, have a cover removal frame made as shown in Fig. 289. Fasten the frame to a solid wall or bench so that it will withstand a strong pull. In rebuilding this type of battery proceed as follows:
1. Drill off the connectors and terminals, leaving the post stubs, as high as possible, since the only way of removing the plates is by grasping the post stubs with pliers.
2. Steam the battery to soften the sealing compound and lift out the plates as usual.
3. To remove covers. Saw the post stubs off flush with the covers. Place the element in the cover removal frame (Fig. 289) and pull steadily on the element. A little swaying motion from side to side may help in loosening the covers. If any of the gaskets remain on the posts when the covers are removed, replace them in the cover and thoroughly dry the inside with a rag.
4. To replace covers. With a rag or tissue paper wipe off the posts and then dry them thoroughly with a soft flame.
With a 3/4 inch bristle bottle brush apply a thin coating of rubber cement to the inside surfaces of the gaskets. Do this to one cover at a time and apply the cover quickly before the cement dries. The cement acts as a lubricant, and without it, it will be impossible to replace the covers.