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After the two halves are taken apart again, seal the pouches very well with silicon grease and trichlor until cartridge tight (see appendix A), talcum well, and when assembly time has come, the pouches are joined together tightly through the 5/32" hole in the pallet with the spade end regulation screw using a common slotted piano action regulation screwdriver.
The pallet valve material is important. Neoprene sponge was found unreliable. The best was thick, soft doeskin leather, With a thin white pouch leather punching glued on top with plastic glue. Treat with silicon grease dissolved in trichloroethane and talcum when absorbed.
Clean the O-ring with trichloroethylene first.
Silicone grease is applied after the pouch is down and the lifter disk is glued and tested. It can be squirted through the vacuum supply hole in valve blocks with an eyedropper, then the excess poured back out. This does not prevent the block from being rebuilt as long as hot glue was used to assemble it. Its thinner is 111 Trichloroethane. One trade name of this dry cleaner product is "Carbochlor".
Try to get about 3/4" of the smaller tubing into the larger. Another method of doing this is to use one of the 'super glues". Slide the tubing together and let the cyanacrylate "wick" between the two tubes. If the tubing has been lubricated, this won't work. Remove lubrication first with Trichloroethane. This method overall is really the best of all.
Silicone sealer is the "grease" type. It is cautioned not to use just any so-called 'silicone grease'. Pure silicone grease is perfectly clear. It does not have a vapor pressure, so it will not evaporate and deposit itself all over the inside of the player like other greases and oils will do. It does not allow gluing to itself, so it cannot be applied to pouches until all the gluing is done. If a pouch is to have a lifter disk or the top of a block valve glued to it, application must wait until the glue is dry. Silicone grease is applied after the pouch is down and the lifter disk is glued and tested. It can be squirted through the vacuum supply hole in valve blocks with an eyedropper, then the excess poured back out. This does not prevent the block from being rebuilt as long as hot glue was used to assemble it. Its thinner is 111 Trichloroethane. One trade name of this dry cleaner product is 'Carbochlor". The concentration of the mixture can vary widely, but in most cases, it should be reasonably well thinned and tested for tightness after having thoroughly dried. Adequate precautions for all solvents must be observed, and especially so if you are prone to getting the mouth close to treated material so as to test its tightness with a tube or something. Be sure all solvents are evaporated first. Whenever possible, talcum powder rubbed into the pouch when dry acts as a sealant and preservative by absorbing moisture. This should be done when the grease has been fully absorbed.
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