slow keys

Hello,

when the action is slow, it is always due to friction!!

This is mainly due to humidity; wood is a highly hygroscopic material, meaning it absorbs and releases moisture.

When it absorbs moisture, it swells and does not allow the levers of the parts of the action to move freely.

As a consequence, you get a sluggish or even stuck action.

The same applies to the keys.

If you don't have one, get a hygrometer and measure the humidity; it should be around 50%.

Thank you, I will do so.... in the meantime can I do something to "restore" the situation?

Restoring the correct friction values is a very technical operation.

If you are not experienced, do not venture into it.

In fact, one must know how to hone the kasimir of the forcules and replace the center pins and then check the adjustment.

Contact your trusted technician.

First thing, check if the problem concerns the key felts (gaskets); if they have swollen, it will be enough to adjust them with suitable pliers.

If the problem is also with the pins, the work is slightly longer and also more specialized.

You will certainly need to consult a technician, but you could check yourself by moving a slow key up and down with your hands more and more quickly to see if any improvements are noticed.

Alternatively, since I have opened the piano, you could hold a key in its resting position (not pressed) with your left hand and bring the corresponding hammer close to the strings with your right index finger and then let it go; in this way, the return of the mechanism is not influenced by the key, and you can evaluate if the hammer returns to rest more quickly.

Bye

thanks for your advice.....

If we are talking about "slowness," the first thing to check is the keyboard felts as giovanni suggests. Then, also as pianoaccordatore says, check all the mechanical pins. Such interventions are not easy and are very technical.