CAUT

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?

I think Jim meant kerfs not curfs. I am wondering if using marking fluid would help in finding the high spots which could be in multiple places. Maybe there should be some flex in the rail because of the weight/size of the keysticks, top action . The bad thing about sanding is you cant put it back .Also not a bad idea to check the keybed for flatness and level. Keep in mind a 1935 piano was likely subjected to all sorts of environmental changes that could cause warpage. 

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?

Hello all,

Recently tuned a 9' Bluthner from 1935. I pulled the action to remove a key for ivory repair and noticed there were no glide bolts (yes, I looked underneath too). I'll be returning to do a little regulation-how do you bed the key frame? Is it a matter of sanding high spots, like bedding the front rail of a typical grand?