YAMAHA P-120 - Lubricating keys?

[BoogieBertil]

Hi. The other day, one key (G) seemed to slip out of the back lock, and slided into the front metal shield. I pushed it back, and everything worked fine. It locked, but now it often come lose. Once a year i take the piano apart, and do a survey on all the mechanics. Discovering the lose key, i opened the piano to see what's wrong. The locker looked and felt fine, but i replaced the key with another. When also this slided lose, I might have caused this problem myself when i started to lubricate the back lockers on all keys. Are they supposed to be dry? Thanks.

 

[delaware dave]

I've owned dozens of digital keyboards over the years and never needed to lube any of the keys. Depending on the type of lube you used you could be causing a breakdown in the locker material you are lubing. Unless the owners manual recommends lubing I would discontinue this practice.