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Started by nrichmond, May 26, 2023, 03:13:46 PM
Quote from: Cormac Long on May 26, 2023, 04:34:52 PMif you can remove the damper rail side pins or the brackets holding them down, the entire damper rail will come out letting you access the broken screw more easily. The purpose of that centre pin is to prevent the longer '88 damper rail warping upward when the sustain pedal is pushed. It's adjustment is necessary to keep the rail level and provide an even sustain. From my own experience, the movement on that screw was pretty loose. So I suspect its a threaded screw into a nut embedded in the wood.So my first approach would be to try and use a small dowel or qtip stick etc with a tiny dab of super glue and see if you can bond to the broken screw and unscrew it. You may be able to do this with the original screw itself.Failing that, its going to be a drill job or more involved disassembly of the hammer rail assuming the nut section can be accessed from below.
Quote from: Cormac Long on May 30, 2023, 04:45:23 AMMaybe get it to a tech to get that broken screw To put in another screw, you'll be threading wood. What's there is a threaded nut and for a good reason. You've snapped fatigued metal already purely from pedal pressure. Wood is not going to hold up as long and that is why it was done using a nut day 1. As for position, the location that is there is the ideal pivot position for the rail. Any other location will not be the right one.