At 03:18 PM 11/14/1999 -0700, Bob Anderson wrote: >Susan Kline wrote: > >"I use a 6B (very soft) pencil to rub across the contact area, where the >glides have made marks." > >I would like to cast a vote (or as many votes as I can) against this >solution. Even though it can stop a noise, the side effects can be >worse than the problem (in my experience.) I have gotten graphite on my >hands and clothes because of this. (Fortunately, I've managed to avoid >getting it on a customer's carpet.) I assume that Susan is very careful, >but some technician's have not been careful. It's possible to play with >fire without getting burnt. But I think it's safer to warn against using >graphite for this application. > >Before resorting to lubrication, it is worth checking the glides for >tightness and proper height. I have found that glides that are loose in >the keyframe can cause noise, as well as glides that exert too much >pressure against the keybed. I agree that it's good to check the keybedding. What I don't see is how the graphite got all over the place. Maybe if I knew what Bob did to spread it around, I would agree. I take a normal drawing pencil (not a graphite stick) and mark on only the area where the glide contacts, not the whole hardwood insert. The marks are a third of an inch long, less wide, and I don't press hard enough that the pencil lead gets powdered. I have far more anxiety over black mess from the graphite in tallow which older generations have smeared around various places on the keybed and trapwork. When I pull a grand action, I spread a sheet or newspaper where it's going to rest. My hands become a mess when I'm fiddling with old trapwork, but I find it washes off pretty well using a little dish detergent at the customer's kitchen sink. However, if you find that graphite gets all over the place, by all means forego it. Only, I hope that doesn't mean that people will go and put greasy stuff in its place. Susan Kline
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