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. By the way, Brian De Tar has just concluded a very instructive 3-installment article on bedding the keyframe in the PTJ. Bob Anderson Tucson, AZ
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