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1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

  • 1.  1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-16-2023 22:42

    Hello, I have an issue with a 1946 Lester console. When pressing the sustain pedal, the treble section dampers lift above the strings normally at the top end but seem to taper down in the middle, barely lifting the the first couple dampers of the bass section then none. The middle pedal only raises the bass section dampers like it's supposed to. 

    Originally, I was thinking that the leather in the gap where the damper lift rod connected to the sustain pedal lifts the damper lift rod connected to the middle pedal may have been too old and worn. I thought if I replaced it with something thicker it would help the other rod move up. I haven't fully replaced it yet but I've filled the gap with thicker leather to see if it would work and it doesn't seem to make a difference.

    Currently, I only have the action rail with the dampers and damper lift rods. When lifting the bass section damper lift rod with my hand at the point where the pedal rod is supposed to, it lifts perfectly fine. When I do the same with the treble/mid section damper lift rod (which is supposed to lift the bass section rod as well), it seems like it isn't capable of rising all the way, or maybe about half as high as the bass section. If I lift the bass section first, I can raise the treble/mid section but it's difficult. There's a lot of resistance and it seems to be coming from when the rod gets closer to the bass section.

    All the brackets are screwed in tight. The hinges are bushed. They seem pretty dirty though.

    Here's a video. It shows the sustain pedal being pressed. At :016, the middle pedal is being pressed. 

    https://www.dropbox.com/s/civ8vmjhmn1v6ki/1946%20Lester%20-%20Sustain%20Pedal%20then%20Middle%20.mov?dl=0

    Here's a picture of the action rail w/dampers/lift rod. It isn't split. Nothing seems bent or warped. The rod hooks are not at the same angle though. 

    https://www.dropbox.com/s/gwm6z1j5sqfvkgi/1946%20Lester%20-%20Full%20.jpeg?dl=0

    The piano is unusual to me. The action doesn't screw into the plate. It screws into the action rail with the dampers. Also, the hammers rest on back checks. It's a compact upright though. I'm not sure if there's another name for this other than console. Maybe someone might know if this is just a design flaw for these.

    Here's photos of the damper rod hooks if that helps.
    https://www.dropbox.com/s/s2fiyb4r9fmj7wg/1946%20Lester%20bass%20hook.jpeg?dl=0
    https://www.dropbox.com/s/0zr07som35n13di/1946%20Lester%20Treble%20hook.jpeg?dl=0

    Has anyone here run into this issue? Any ideas for a possible solution? Any help would be very much appreciated. Thanks!



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 2.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-16-2023 23:06

    There are 5 or 6 of the L shaped stand-offs that connect the rod to the hinges. Look for a broken or loose one, probably near the juncture of the bass and the treble.



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 3.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-16-2023 23:47

    Thanks. I just looked and the base of the L shaped stand-off nearest to the juncture is discolored and worn looking. The others aren't like this. It's still connected to the hinge and that's screwed in. 

    Here's a photo. 

    https://www.dropbox.com/s/4bkacnbzovfmmoq/Lester%20Hinge.jpeg?dl=0

    Do you think this is causing the problem? Any ideas for a solution?



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 4.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-16-2023 23:56

    The good thing about that unusual action is that the rods are easy to remove, there will be one of the L shaped stand-offs that is oriented in opposition to the others, if you unscrew the hinge the rods will come off the rail for inspection. If none are broken, test them with some pliers to see if they are loose in the rods.



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 5.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-17-2023 00:13

    Wow, that was easy to remove the rod. That L shaped stand-off nearest to the junction is loose. What would be the best repair for this?



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 6.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 00:27

    Others might have better ideas than me. Do they seem to be pressure fit into place or soldered? You might be able to tighten it by "peening" it with a round hammer or possibly a center punch. It's really important that all of the L shaped stand-offs are the same distance from the rod and in line with each other.

    Hopefully others will have some more advice how best to get that piece tight again.



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 7.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-17-2023 00:54

    Thanks so much Steven for your help!

    I'm not for sure if these are pressure fit or soldered. Here's a photo of the loose one.
    Loose L-shaped stand off

    Here's a photo of a non-loose one.

    Normal L-shaped stand-off

    Here's the other side where it goes through if that helps.

    Other side of rod

    Does anyone have any methods of tightening this?



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 8.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 01:01

    Is that other side the loose one or a tight one. (those are incredible photographs)

    Does the loose one jiggle from side to side or rotate?



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 9.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-17-2023 01:30

    That photo was a tight one. Here's the other side of the loose one. 
    Other side of Loose L

    It jiggles in all directions but doesn't rotate.



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 10.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 01:38

    My suspicion then is that it is broken or cracked inside of the rod. I would try to remove it by punching it out from the other side.



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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 11.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-17-2023 02:26

    Okay, I'll give that a try tomorrow. I'm wondering what exactly the next steps would be after that. I could try to find a replacement the same size but I imagine it would be difficult fitting it in tightly as well. 



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 12.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-18-2023 19:57
    If you punch it out and find that it is intact you can always mix up some JB Weld and "glue" it back in place.  You can use a caliper to make sure the height is the same as the others and also keep the alignment straight on the hooks by sighting down the line to make sure they will all engage the brackets in the same plane.  

    If it is broken you can make a new hook by getting piece of steel rod the same approximate diameter as the original.  (A piece of a similar diameter nail can be used for your rough stock)  Cut a length of rod long enough to make up the entire amount needed.  Chuck your piece in either a drill press or a hand held electric drill and use a file to round over the ends so they won't catch the felt bushing of the hanger and also will go freely into the hole in the lift rod.  

    Heat the replacement piece so you can make a sharp bend just like the originals.  Once it has cooled you have a replacement part.  At this point you can JB Weld the replacement into place but it is best if you take a steel countersink and bevel the hole in the rod.  This will give a little more surface area for the JB Weld to form a glue collar on both sides of the rod.  Use the caliper to set the height as I described in the first paragraph.  Let it set for 24 hours and then trim off the part that is protruding out of the rod.  You can see evidence of trimming and grinding of the original hanger pins on the back side of your lift rod.  Assemble and test.  Good luck


    Norman Cantrell





  • 13.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 06:27
    Hi Matt

    I just looked at the conversation between you and Steve. 
    First, this is called a Wood & Brookes, action, or a 90 degree action. There aren't too many out there.

    Since you've got the damper rod out, the easiest way to tell if one of the brackets is loose or bent is to pay it down on the bench and look at each hanger. They should all lay down at the same time, in the same direction. If one is loose, do what Steve suggested. If one is not, then just bend it with pliers until it is. 

    Good luck. 





  • 14.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 10:22
    I recently did this repair on the same damper rod hook 3 times over a period of 20 years.

    Epoxy on original loose hook did not hold a month.

    New hook made of bronze brazing rod, and braised with bronze rod and oxy-acetylene torch lasted about 15 years. Bronze rod hook broke.

    Recently replaced hook with steel hook, made from steel nail, and braised with bronze brazing rod and oxy-acetylene torch.

    All brazing done carefully preserving temper of steel by quenching and watching color of metal.

    We'll see if this one lasts.
    Nancy Salmon RPT
    LaVale, MD






  • 15.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Member
    Posted 02-17-2023 11:59

    I would punch it out and use liquid metal to fill the hole. after it dries/cures drill the plugged hole or drill a new hole close to the old using a bit a little smaller than the hook. Its critical the hooks are all in a straight line and at even depth. Nancy's  method is also good. You are getting binding because the plane of rotation is not even. 1946 Lester - does it have any plastic parts ?



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
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  • 16.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-17-2023 16:16

    Nancy's final method looks to be a proper repair. I've run into only two broken hooks twice, decades ago. My solution was rather ad hoc but seemed to be solid fixes.

    Usually in the bargain basket at an auto parts store or even a drug store like CVS one can find a cheap set of hex wrenches for 7 or 8 dollars. The ones I found were silver in color and probably wouldn't last long as hex wrenches. There is one size in which the shank is slightly smaller than the hole in the lifter rod but the edges of the hex will bite into the rod and the L is the right size to fit into the bushed hinge. I rounded the L part with a mill file and cut the length to size with a thin blade hack saw, scoring each flat side and then snapping the excess off with pliers. I think I aligned it with the other hooks by laying them flat on the edge of the bench and got the new one started in the hole and used a block of wood cut to the size of the gap between the rod and the other hooks and then tapped the new one in the rest of the way, I might have gripped the new hook with vice grips and tapped on the vice grips instead of the hook. The edges of the hex bit in well into the rod and it seemed quite solid to me, certainly the steel wasn't going to bend or break. I don't know about the longevity but I was confident at the time it would be permanent.


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    Steven Rosenthal RPT
    Honolulu HI
    (808) 521-7129
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  • 17.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Posted 02-17-2023 18:52

    Thanks everyone! This has been extremely helpful. Glad to know what these actions are called now too.

    Unfortunately, I don't have experience in metalwork or the equipment at this point so I'm going to direct the repair to someone who does. 



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    Matt Hill
    South Pasadena CA
    (323) 358-1315
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  • 18.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Registered Piano Technician
    Posted 02-18-2023 09:32

    This also can happen with Steinway sostenuto rods. The u shaped fixture that secures the monkey to the rod can come loose. Once the fixture, the L in the damper rod, is aligned with the others to get even lift, use JB Weld, metal epoxy. Easy and permanent in my experience. 



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    Stewart Freedman, RPT
    Freedman Piano Service
    Akron, OH
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  • 19.  RE: 1946 Lester - Treble/mid damper lift rod not raising bass damper lift rod

    Member
    Posted 02-18-2023 10:22

    pretty much what I was recommending. You could knock out the hook enlarge the existing hole with a bigger bit and pack it with JB Weld insert the hook and let it set. Pack some jb weld around the hook and file/grind  it down 



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    James Kelly
    Owner- Fur Elise Piano Service
    Pawleys Island SC
    (843) 325-4357
    ------------------------------