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It's Fun to Play the Piano ... Please Laissez passer It On! |  | | | 74 members (brdwyguy, anotherscott, AWilley, brendon, 36251, bluebilly, astrotoy, 14 invisible), 857 guests, and 386 robots. | | Key: Admin, Global Modernistic, Mod | | | OP  Full Member Joined: Oct 2022 Posts: 36 | Hi all, The sustain pedal on my player pianoforte has recently given upwards its life. The thread into which the commodities goes to tighten the pedal in place has cracked. Hence, i am no longer able to utilize the sustain pedal, as its simply impossible to tighten it and keep information technology in place. I had a look for a new set of pedals online, only none of them friction match my piano. Therefore, would there be any method which could fix the bolt thread in the pedal? I will post a couple of pictures so you tin can run across what the problem in question is. Please find the link to the images below. https://imgur.com/a/SKAJo0E Thank you. Last edited by SLT16; 09/27/18 07:32 PM. | | | Joined: Jun 2003 Posts: 30,413 Yikes! 10000 Mail service Order Fellow member | | Yikes! 10000 Post Club Member Joined: Jun 2003 Posts: thirty,413 | That looks like a player pianoforte pedal. I call back those are all the same available, and in that location are plenty of junk (ex-)players that pedals could exist salvaged from. Just they often slip, and information technology might be improve to make new trap piece of work for standard pedals. | | | Joined: May 2007 Posts: 1,985 thousand Post Club Member | | k Post Club Member Joined: May 2007 Posts: 1,985 | That is not a difficult repair for a welder, simply the threads might need to exist chased then you'd need the right size tap. Depending on what that cloth is it would either be tig welded or brazed. It should be easy to find a shop that does that kind of work if you're nigh civilization, only if you lot're in a rural area it might not exist so piece of cake. | | | Joined: May 2007 Posts: ane,985 1000 Post Club Member | | 1000 Post Lodge Member Joined: May 2007 Posts: 1,985 | The pedals are brass. Can brass be welded? I remember someone a long time ago once telling me brass can't be welded. Yes information technology can exist welded, but the process produces a rather big bead that's a chip messy looking, then that wouldn't exist the right approach for such a pocket-size part. Contumely can be brazed, merely the filler cloth has to be something soft like silver solder considering brass has zinc in it, which melts at a adequately low temp, and so yous tin can only use fillers that melt at a lower temp than zinc. Zinc is very toxic, so practise some research if yous plan to attempt something yourself.
Are y'all sure information technology's brass? If and so I'thousand not surprised it broke in that application. From the photo I would have guessed bandage steel as first option, then cast atomic number 26. | | | Joined: May 2022 Posts: 3,046  3000 Post Guild Member | | 3000 Mail service Gild Member Joined: May 2022 Posts: 3,046 | Marking, Upon farther inspection, the role of the pedal that cracked is indeed cast fe. Yet, the head of the pedal is brass. If the part is squeezed airtight in a vise every bit would be constitute in any repair garage then the outside of the casting can exist easily welded and probably without any outcome on the inside threading. The weld sinks into the metallic and the outer surface can be ground or filed downward to remove the weld bump. It would exist a good idea to first insert a spiral with the same, presumably if the piano is one-time, not metric merely BSW (Whitworth fine or fibroid thread), earlier welding. Ian
I'yard all keyed up
2016 Blüthner Model A | | | Joined: May 2007 Posts: one,985 1000 Post Club Member | | 1000 Postal service Club Fellow member Joined: May 2007 Posts: one,985 | Mark, Upon further inspection, the office of the pedal that cracked is indeed bandage iron. However, the head of the pedal is contumely. You're lucky in this case that the cast iron is very make clean. Usually cast atomic number 26 comes from a manual or engine case that's been soaking in oil for 30 years on an erstwhile tractor. So what they volition do is take a small hand grinder and open up the surface of each of those cracks to let for good weld penetration. Cast fe has to be preheated before it is welded, again you're lucky this is a small part so that'southward easy. Then it has to exist cooled slowly afterward welding which again is like shooting fish in a barrel because it'south and so small, they tin can just bury it in some sand or put it in an oven. Make sure you find someone experienced with cast iron. You can bank check around with the local auto, truck or boat repair places and come across if they can recommend a welder they use. Someone who is more familiar with brazing might still prefer to do it that way rather than tig welding it, either fashion will piece of work. | | | Joined: Feb 2009 Posts: 1,764 g Mail service Club Fellow member | | yard Post Club Fellow member Joined: Feb 2009 Posts: 1,764 | If you lot exercise go with all new trapwork, make sure there's room for the new arms to pivot rather than rotate like the original trapwork. This is assuming you have a working role player. Those bellows can take upwards a lot of space.
Joe Gumbosky
Piano Tuning & Repair
world wide web.morethanpianos.com
(semi-retired) "The object in life is not to be on the side of the bulk, but to escape finding oneself in the ranks of the insane." -Marcus Aurelius | | | Joined: Feb 2009 Posts: ane,764 1000 Mail service Club Member | | k Post Club Member Joined: Feb 2009 Posts: one,764 | As well, look into: actor-care.com
(which besides advertises used parts) howespiano.com pianoartisans.com
Joe Gumbosky
Piano Tuning & Repair
world wide web.morethanpianos.com
(semi-retired) "The object in life is not to be on the side of the majority, but to escape finding oneself in the ranks of the insane." -Marcus Aurelius | | | Joined: Oct 2022 Posts: 3 Junior Member | | Junior Member Joined: Oct 2022 Posts: 3 | It’southward easy. Check with the mechanical workshop or factory well-nigh your place, they tin can help yous weld the cleaved parts and so polish information technology, to brand it work properly equally before. I have repaired broken pedals by welding, so I’grand sure information technology tin work. | | Forums43 Topics212,255 Posts3,177,277 Members104,726 | | Most Online15,252
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