Bechstein-Schwander Action

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D.J.Smith
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Bechstein-Schwander Action

Post by D.J.Smith » 01 Jun 2013, 11:50

I have just acquired a c1880 Bechstein V grand fitted with a Schwander action I have not seen before. Not surprisingly, it needs regulating. Does anyone have the regulating specs/procedure for this action ?[attachment=0]P6011455.JPG[/attachment]
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Barrie Heaton
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Re: Bechstein-Schwander Action

Post by Barrie Heaton » 01 Jun 2013, 13:50

Wow not seen one like that before, can you take some photos of it through the sequence. interested to see how the double escarpment works with that extra bit on the rep lever

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Colin Nicholson
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Re: Bechstein-Schwander Action

Post by Colin Nicholson » 03 Jun 2013, 10:22

I saw this action design about 10 years ago in a school hall model V grand.... completely different ball game regulating one of these and not standard regulation procedures either.

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D.J.Smith
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Re: Bechstein-Schwander Action

Post by D.J.Smith » 07 Jun 2013, 20:28

Update:

Bechstein Germany have kindly sent me the info I needed, and added an approximate list connecting case numbers to serial numbers as a useful bonus.

The action is now stripped down and being overhauled. Not too much needs doing, mostly cleaning, painting, and full regulation.

It should be back in action [sic] in a couple of weeks.

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Re: Bechstein-Schwander Action

Post by Barrie Heaton » 07 Jun 2013, 21:03

D.J.Smith wrote:Update:

Bechstein Germany have kindly sent me the info I needed, and added an approximate list connecting case numbers to serial numbers as a useful bonus.

The action is now stripped down and being overhauled. Not too much needs doing, mostly cleaning, painting, and full regulation.

It should be back in action [sic] in a couple of weeks.
Would be interesting to know if the action is quieter than a standard roller and if that was the intention. Did Germany say why they took that route with the action

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D.J.Smith
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Re: Bechstein-Schwander Action

Post by D.J.Smith » 08 Jun 2013, 09:24

It sounded no different to me.

Bechstein said " In our opinion, the intention for this special whippen was reaching the ideal friction line of hammer centre, knuckle/whippen and whippen centre".

I assume any perceived advantage did not outweigh the additional cost, as it was superseded by the standard roller in later instruments.

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Re: Bechstein-Schwander Action

Post by Barrie Heaton » 09 Jun 2013, 12:48

D.J.Smith wrote:It sounded no different to me.

Bechstein said " In our opinion, the intention for this special whippen was reaching the ideal friction line of hammer centre, knuckle/whippen and whippen centre".

I assume any perceived advantage did not outweigh the additional cost, as it was superseded by the standard roller in later instruments.
Thanks, you have to try to see if..

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