[CAUT] Black on Black... (Jack alignment)

[Ted Sambell]

Hi Jim,

I have used it quite often. It's a bit strange at first because one leaves all the hammers dow to secure the strip in place, except the one being worked on. It is, as you say, essentially the same idea as the thread the Nice uses. Would it not be an idea for Kawai to fill in the lines on the edges of the window with white? The method Michael Wathen uses is good, much the same as the traditional practise, which is to line up the jacks first, assuming the the knuckles are lined up straight, then holding down each shank in turrn and striking the key with a few solid blows. This is done after setting the lever heights. I prefer to do all this on the bench, but have often done the same as Michael.There's usually nowhere to put the action in a home. The idea of adjusting the jacks till they malfunction and using this as a reference point, can also be applied to let-off. I have taught a few blind techs to do this in a grand by turning up the let-off buttons still the hammers just block nder a soft blow, then backing off a half turn. Function should always come first before arbitrary measurements. For lever height, the only true critirion is that the jack returns all the way under the knuckle, though  again, one can get there  more quickly by lowering the lever until the jack abrades too hard, then backing off . I'm sure you know all this anyway.

Regards, Ted
  ----- Original Message ----- 
  From: Jim Busby 
  To: College and University Technicians 
  Sent: Tuesday, August 07, 2007 4:36 PM
  Subject: Re: [CAUT] Black on Black... (Jack alignment)


  Hi Ted,

   

  I waited to respond thinking I would try your method. I still haven’t gotten to it yet. It does sound good. Vince Mrykalo made a string line which goes across the action and does the same kind of thing. Kawais indeed have lines by the jack window. 

   

  My vision problem (besides myopia) has to do with cones, or something, in the back of the eye that the doctor says affects night vision, or in this case shadows. I like your method because it is on top and easier to see. This “new” idea of adjusting the jack by feel intrigues me. Have you tried it? 

   

  Thanks.

   

  Regards,

  Jim Busby

   


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  From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Ted Sambell
  Sent: Saturday, August 04, 2007 9:06 PM
  To: College and University Technicians
  Subject: Re: [CAUT] Black on Black... (Jack alignment)

   

  Jim,

   

  I don't know if it will work for you, but Denis Brassard, who was my colleague at the Banff Centre came up with an idea I think was brilliant. On the computer, you type out a page consisting entirely of lines double or triple spaced, using the underline. Next, print this out on a transparency and cut it into strips, each having one line and 1/2' or so wide.. To use, lay a strip on the repetition levers ( balanciers) and carefully adjust two jacks to the knuckles at each end of the line and bring the line of the transparancy to the adjusted jacks. Lay all the shanks down to hold the strip in place, and only raise one at a time to adjust the jack. The strip is moved along as needed. I have poor vision (myopia) and this works beautifully for me, but not all eye conditions are the same. European actions have a line on the lever surface to bring the jacks to, but I cannot recall if Kawai has too.

   

  Ted Sambell

    ----- Original Message ----- 

    From: Jim Busby 

    To: College and University Technicians 

    Sent: Saturday, August 04, 2007 9:20 PM

    Subject: [CAUT] Black on Black... (Jack alignment)

     

    List, Don…

     

    Help! Do any of you have a trick for seeing the new Kawai parts, namely for doing the jack to knuckle alignment? I truly can’t see the black parts/plane of the jack. (My eyes are bad, but this is way worse for me) I’ve got some good lights and such, but it’s still difficult. I’ve been tempted to paint white-out on the backs of the jacks… Love the parts, but these old eyes don’t get it done anymore.

     

    Any tricks out there? Am I the only one experiencing this?

     

    Thanks,

    Jim Busby BYU
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