Robert Scott wrote: > To those of you that have used CA on loose pins, what special > application techniques do you use when the plate has plate bushings?>> Water thin CA glue - and get and use the very fine capillary tubes that can be fitted to the top of the CA botttle. THEN - practice a bit at home until you can go from pin to pin without putting a single drop of the CA glue on the plate itself. This is not hard, just a bit more time consuming using the capillary tubes. ( I like the nylon ones, not the pvc ones, and if you are not getting the flow and control you want, you can cut 1/16th off the end of the tube and try again. CA glue smells a lot and isn't good for your lungs. I use a fan, a big one, across the room, directed at the piano and diluting the fumes. My eyes are not too good, and I use a 3x lens in a head frame (like jewelry makers use) to magnify the pins. From 20 inches away you can see every thread and dust mote on the pins. Makes the job much easier. ( this is equivalent to 3 diopter reading glasses on top of whatever eyesight or glasses you have currently) Before starting, I use a vacuum cleaner and stiff paint brush to really clean around the pins, finishing with compressed air to blow loose dust away. It makes a better job and the dust can interfere with proper capillary action of the CA as it is applied to the side of the pin below the coil. I also use a 1 cc. insulin syringe to put a tiny drop of accererator at the base of each pin after fully treating with CA, ( one cc. of accelerator treats the entire piano) then I give each pin a tap, to free or loosen it a bit. I have seen pins treated with CA go from 10 inch pounds to 125 inch pounds in ten minutes. It is scary. After the tapping, torque drops a bit and stays solid. The "breaking free" has been done. Bill Simon Phoenix
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