Hi Bob, I doubt it would be moths in my experience sring cord is one of the last things they go for. It is more likely corrosion on the metal that Yhamaha uses for their springs in the UK we tend to replace the steel butt sprintgs with brass ones. The spring cord we use is a heavy duty cotton the sort shoe makers use preferably waxed. If you decide to replace the spring cords it is quicker if you use a jig. To make the jig you will need the following: 1. A peice of wood 2"x 1"x 8" 2. A hammershank and one centre pin. Take a hammershank drill, approximately an inch from the end drill a hole for the shank, cut your shank an inch long and glue in to pre- drilled hole. Leave approximately quarter of an inch of the shank protuding out. Place a flange which has a good loop on to the shank, (through the part where the screw should go on the flange)you may have to file down the hammershank to fit, but you want an nice snug fit. Take your centrepin put it in to the mouth of the flange and draw it up to the loop then knock the centrepin or nail if you wish in to the peice of wood this then will give you an acurate measurement each time. Method. You will need another centrepin a centrepin holder, a not too sharp knife, some glue (PVA) and cocktail stick. Place your flange on to the hammersxhank, grip hold of the old loop and pull up this if your lucky will remove the loop cord from the flange cord channels, take your centrepin holder with pin and draw along the loop cord channels with the sharp end, this will clean out old glue and make room for the new. With your cocktail shick apply some glue to both channels place the cord on the channel furtherest away holding down with your second index finger on your lefthand, with your other hand wrap the cord round the pin and place it on top of the channel nearest to you. With your first index finger lefthand hold the end of the cord in position and with your righthand pick up the knife and draw the knife from the centrepin end of the flange towards your fingers pressing down firmly (as if you were spreading butter on bread the knife needs to be at an angle) when the knife reaches your fingers place the knife upright and draw towards you this will cut the cord. Repeat 88 times. A damp cloth is handy to wipe off any excess glue that builds up on the knife with a little practice you should be able to replace full sets of flanges in an hour and fiftteen minutes. Depending on how much you pay yourself an hour I am sure it works out cheaper but not faster than new flanges. One last thing all the cotton I use comes on bobbins and I have a balancerail pin hammered in the other end of the piece of wood to place the cotton bobbin on so it does not wander off during the process. The UK changing spring cord is just one of those every day little jobs to do when there is nout on the box just switch off your brain and listen to some music. Yours Barrie. In article <199602012001.MAA12028@wiley.csusb.edu>, Bob Simmons <bsimmons@wiley.csusb.edu> writes >I've got a Yamaha console (about 13 yrs. old) that has suddenly >developed a problem with the loops, which hold the hammer return springs, >starting to break. (Schwander style, you know). Why would these be >breaking? I'm wondering if the material of the loops is not treated with >moth repellant, and if so may have been weakened by little critters? Would >some type of corrosion on the springs have begun to act as an abrasive? > >By the way, what material should I replace these with? I've used dental >floss for repairs, but I'm sure that's not the appropriate material >(actually I'm not sure, but I'm guessing). But first I want to have at >least a theory of what has caused the problem so it doesn't come back as >soon as I'm done. > >Bob Simmons, RPT >CSU San Bernardino \ | / (o o) ---------------------oOO--U--OOo---------------------------- Barrie Heaton MABPT MIMIT pgp key on request If the Bible is evidence that God exsits? Are commics evidence that Supper-Man exists! ------------------------------------------------------------ \ | / (o o) ---------------------oOO--U--OOo---------------------------- Barrie Heaton Email piano@forte.airtime.co.uk pgp key on request If the Bible is evidence that God exsits? Are commics evidence that Supper-Man exists! ------------------------------------------------------------ ------------------------------ End of PIANOTECH Digest 209 *************************** .
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