Piano action too stiff after tuning, what's happened?
My new second hand schimmel 112 upright had its first tune three weeks ago. We bought it 8 weeks ago, let it rest and acclimatise then had it tuned with a mini service. The piano is 25yo and its last tune before we got it was 3 yrs beforehand, but it wasn't that badly out of tune till it was moved, and is in good condition.
Although there were a few stiff keys here and there, and this was mentioned to the technician, now the whole action is a LOT stiffer, to the degree that even to play a trill I have to really put some force into it, whereas before it would trill without sticking!?? I saw him oil all the pins, so it wasn't that, also I'm sure he went through with a screwdriver or other instrument and optimised the hammers etc...I left him to it, so don't know exactly.
Am I right in thinking he's over tightened it somehow? Surely it shouldn't be the case that the whole piano action is significantly stiffer after tuning?
Thanks!
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The instrument’s action may need a treatment with a proper lubricant to resolve the problem. A more experienced technician will know what to use: a liquid called Protek CLP (cleaner, lubricant, protectant). This magic substance can flush out the bad oil and leave the pin and bushing refreshed and lubricated, freeing the key action.
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