My soft pedal rod has fallen off twice since I had the piano delivered and prepped. I reinserted it both times. But today I went online and found the Kawai Upright Regulation Manual and it says, Adjust soft pedal: set it until there is 2mm lost motion between hammer rest rail and pedal rod.
There is an image showing the soft pedal rod and the distance.
On my piano the lost motion between the hammer rest rail and the pedal rod was much bigger than this, about 10mm. (See image link below) The soft pedal also wasn’t making much of a difference to the tone of the piano. So following the manual I tightened the butterfly nut on the rod until the gap was 2 mm. Now when I depress the pedal the bass keys on the keyboard move slightly too. Is this normal? When the technician was here I don’t remember him adjusting the pedals on the piano.
I also have a problem with the sustain pedal. The sustain pedal didn’t begin to lift the dampers from the strings until the pedal was almost half depressed to the floor. The manual says there should only be a little lost motion on the pedal before the dampers begin to lift. So I tightened this nut too until there is about ¼ inch of lost motion on the pedal before the dampers lift from the strings. It is really simple to do as per the manual. Remembering my old piano this now feels right to me. But now I seem to have a slight sustain on the bass notes even when the pedal isn’t depressed. Plus when I do depress the sustain pedal the bass notes dampers move first, ever so slightly, before all the other dampers.
The piano was bought new and uncrated at my house and a month or so later had its initial prep and first tuning here in my home. I am due another tuning which I am trying to set up. Will a tuning visit include fixing the sustain issue and the early damper movement, now that I have adjusted the pedals and the lost motion.to where the manual says they should be or will I have to schedule a regulation.