I do basically the same thing Joe. But I use a spot of glue on the cork, and I use haemostats, instead of tweezers. I also put a piece of tape around my forefinger, as I used to damage the quick on my finger, from poking. John M. Ross Windsor, Nova Scotia, Canada jrpiano@win.eastlink.ca ----- Original Message ----- From: "Joe And Penny Goss" <imatunr@srvinet.com> To: "Pianotech" <pianotech@ptg.org> Sent: Saturday, April 02, 2005 11:20 PM Subject: Deep in thought > Hi Folks, > The other day while replacing the bridal straps on an old upright with > cork > tapes, the monotony of the task allowed my mind to wander into fields of > WHY. > > 'Is this a right handed job or left handies job?' > So for a while I tried to do the task moving from left to right, or > backwards from the way I usually procede. > > This caused me to think about the way that might be the fastest and > easiest > to accomplish the task. So here is my procedure. > > Cork Bridal Strap Replacement > Tools needed: > 1. hammer shank with sharpened center pin in one end to skewer each > cork. > It does help to have a cardboard stop on the end of the hammer shank to > keep > the tool from pushing the cork too far into the catcher's hole. The pin > needs to protrude 3/16", any longer will ruin some corks. > 2. One pair of hands. > 3. Some actions will require some sort of action cradle. > 4. 10" tweezers or exacto knife > Procedure: > 1. Secure the in action cradle if necessary ( non supporting action > bracket > feet) > 2. Use your favorite method to remove old tapes. Usually I use a 10' long > pair of tweezers as the cloth is rotten and tears easily. You can gently > push down on the back check to tighten the cloth and reach in to grab the > tape with the tweezers and pull sideways tearing it loose. Try to only > seperate the tape as too much pulling can bend the wire also. > When all the tapes have been cut, all the back checks will be hanging > down > so that the catchers hole is, > "front and center" > Next, remove the old tapes from the wires by first trying to grab them > with > the tweezers or small pliers and lift them off the wire pulling up and > out.. > If the ends are so rotten that they just break, just break or clip them > off > and remove them. At this point some clean up usually is needed to remove > debris from the bridal wire. > 3. Starting on the right hand side of the action, using the tool in your > right hand, skewer a cork so that the tape is on the bottom as you push > the > cork into the catchers hole. A gentle rocking up and down of the tool will > help ease the cork into the hole. Moving the tool side to side puts a lot > of > pressure on the flange bushings so you will want to support the catcher by > holding it with your left hand. > This is real easy becuase there are no parts really in the way <G> > > During the process you may find repairs that need to be made, such as > loose > glue joints and bushing repair. > > 4. Hooking the tapes up requires no other tools than what we have so far > used. > Using your left hand reach in between the back check and catcher and with > the index and middle finger lift the end of the tape out so that the right > hand can grasp the very end of the tape. Sometimes the tape is a little > hard to fish out and pushing that hammer forward will make that tape sort > of > "salute" so that it can be caught. If that fails the tweezers or the > hammer > shank can be used to lift the tape out. > The next step, once the tape is in my right hand, is to push down on the > heel of the jack with my left index finger and in the next moment push up > against the catcher wire so that the wippen and jack are very near to > where > they will be when the tape is attached. > Now the tape can be installed ( did you take the twist if any out of the > tape ) . > Note at this time if there is too much slack in the bridal tape allowing > the > jack to fall below the square of felt on the hammer butt. If there is one > can trip the jack again, and with the left hand hold the wippen and hammer > assembly and pull back on the bridal wire with the right hand thumb on the > wire and the index finger supporting the wippen until the wire bends at > its > the base, taking out most of the slack of the tape. This usually leaves > the > tape loose enough that only fine adjustments are needed, when all straps > are > hooked up, and if you are lucky the tapes are just long enough to leave > this > process until all straps are installed. > > Some other finger movement of parts will be necessary, as things do not > always go as planned. > Such as lifting up the catcher of the previous assembly to give more room > to > work, using the fourth finger or ring finger of the right hand while not > letting go of the tape <G>. > I guess the reason for me that this is a right handed procedure is that > the > bend in the bridal wire is such that they seem to go on easier by twisting > the tape counter clock wise, and then clock wise as the tape is installed. > > There are three sizes of corks available. Mostly the medium size cork is > what you will find is needed, however it is good to have a few sets of > small > and large on hand. > This is a noncopy righted document as are all of Mothers postings <G> LOL > Joe Goss BS Mus Ed MMus Ed RPT > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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