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it comes from articles in the PTG journal, so this is available on sale.
That is the most detailed instructions I have read, as the one sfrom a maker only talk about their models.
There are some detail points I differ on, for instance bedding the keys, with hard wood frames, all the keys are out then the paper strips are mad elicking and the weight of the keys make the final fit.
Or with some pianos, as Steinway, the glides are made knocking by holding their extremity, it is more directly addressing the glide contactn pushing on the hammer rail is OK for aluminium actions as Yamahas, or when the glides are nearer the action stack. (shorter keys lenghts)
KAway RX frames are so special they are not bedded until the end of the regulation, in their manual that is what they say. I may admit they are very difficult to bed, and their frame rattle easily, the key frame is very soft, so one should not use the bolts to rise the keys or the stability will be poor.
For the whippen lever and jack not only the jack center can be tapped to center the lever, if the problem arise from a bowed upper lever (quite common on schwander type) the top lever can be tapped as the jack on a small metal blade secured on the bench (a small T shaped steel part screwed on the bench) no need to move the jack if the trouble come from the top lever.
There are regulation instructions that are more detailed on some points, the Yamaha are generally really nit picky, as they provide the directions to tighten the screws of the stack, something not addressed in ROger Jolly writing.
But I find that document highly valuable in any case. it talk of pianos where horrors have been done, I suppose they can be find or they could at the time of the writing.
But the PTG journal CD or the issues with the article if you want the pics.
There are regulation instruction available for most major makers , often with color pics, you may study them
Or try to attend a Yamaha training theyr are excellent on those points.
Last edited by Olek; 08/30/15 07:09 AM.
Professional of the profession.
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I wish to add some kind and sensitive phrase but nothing comes to mind.!
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it comes from articles in the PTG journal, so this is available on sale.
That is the most detailed instructions I have read, as the one sfrom a maker only talk about their models.
There are some detail points I differ on, for instance bedding the keys, with hard wood frames, all the keys are out then the paper strips are mad elicking and the weight of the keys make the final fit.
Or with some pianos, as Steinway, the glides are made knocking by holding their extremity, it is more directly addressing the glide contactn pushing on the hammer rail is OK for aluminium actions as Yamahas, or when the glides are nearer the action stack. (shorter keys lenghts)
KAway RX frames are so special they are not bedded until the end of the regulation, in their manual that is what they say. I may admit they are very difficult to bed, and their frame rattle easily, the key frame is very soft, so one should not use the bolts to rise the keys or the stability will be poor.
There are regulation instructions that are more detailled on some points, theYamaha are generally really nit picky, as they provide the directions to tighten the screws of the stack, something not addressed in ROger Jolly writing.
But I find that document highly valuable in any case.
But the PTG journal CD or the issues with the article if you want the pics.
There are regulation instruction available for most major makers , often with color pics, you may study them
Or try to attend a Yamaha training theyr are excellent on those points.
Kawai has a good guide for grand regulation. Does anyone have a link to where I can buy these PTG CDs or the journal itself?
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it comes from articles in the PTG journal, so this is available on sale.
That is the most detailed instructions I have read, as the one from a maker only talk about their models.
There are some detail points I differ on, for instance bedding the keys, with hard wood frames, all the keys are out then the paper strips are mad elicking and the weight of the keys make the final fit.
Or with some pianos, as Steinway, the glides are made knocking by holding their extremity, it is more directly addressing the glide contactn pushing on the hammer rail is OK for aluminium actions as Yamahas, or when the glides are nearer the action stack. (shorter keys lenghts)
KAway RX frames are so special they are not bedded until the end of the regulation, in their manual that is what they say. I may admit they are very difficult to bed, and their frame rattle easily, the key frame is very soft, so one should not use the bolts to rise the keys or the stability will be poor.
There are regulation instructions that are more detailled on some points, theYamaha are generally really nit picky, as they provide the directions to tighten the screws of the stack, something not addressed in ROger Jolly writing.
But I find that document highly valuable in any case.
But the PTG journal CD or the issues with the article if you want the pics.
There are regulation instruction available for most major makers , often with color pics, you may study them
Or try to attend a Yamaha training theyr are excellent on those points.
Kawai has a good guide for grand regulation. Does anyone have a link to where I can buy these PTG CDs or the journal itself? certainly on the web site the Kaway is good but say nothing about the usual glide bolts regulation. It is good to read different guides. details varies or are omitted . Grotrian Steinweg made a good one too Roger Jolly talk of vertical motion of shanks, this is not the case around the break, the curved motion of the hammer may oblige to tilt some shanks or the strike will be too much angled. compromise between tilting the hammer and travelling the shank. Usually we control with similar distance up right down left, but some brands as Steinway who center the hammer between both. details
Last edited by Olek; 08/30/15 07:32 AM.
Professional of the profession.
Foo Foo specialist
I wish to add some kind and sensitive phrase but nothing comes to mind.!
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Posts: 864
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Go to www.ptg.org , then hit "publications" and you will be directed to Journal information and also to the bookstore. Have fun!
Dorrie Bell
retired piano technician
Boston, MA
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Go to www.ptg.org , then hit "publications" and you will be directed to Journal information and also to the bookstore. Have fun! Ok, did that, and it said to "log in", but after clicking that, the website didn't offer to create an account. Not a very well designed website. "Grotrian Steinweg made a good one too" I couldn't find a link to that one either.....
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Go to the site, click on "shop online" near the top of the left side menu.
Then under "browse by category" click on "CDs and DVDs."
There you'll find the journals. It's not really intuitive, but after you sort of figure it out you can find most things.
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I think the site says, "Member Login," so that's different from the sites which offer to create an account for a new visitor. PTG.org is primarily a membership-based service. Thank you, Retsacnal, for better directions for non-members (I'm making an assumption here) on how to purchase training materials from the PTG. Best wishes for your project.
Dorrie Bell
retired piano technician
Boston, MA
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You're correct, Dorrie. I am not a member, but have poked through those links quite a bit. Haven't purchased anything yet though.
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Does anyone have a copy of the Grotrian manual they would be willing to share?
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Does anyone have a copy of the Grotrian manual they would be willing to share? You have a PM. 
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Sorry if I "resurrect" a bit this thread about something else than the OP's topic !
I was looking for the Grotrian-Steinweg service manual, but couldn't find any source online, nor in the PTGJ... Is it available somewhere ?
Ulrich Guillerm Piano technician France Ti Piano
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