Casio PX330 Gb key Weight (underneath ) broken

Synth Repair
1

Casio PX330 Gb key Weight (underneath ) is broken. what part number should I order?

Also, what type lubricant is on the keys?

Thanks!

2

Parts are right here on Syntaur -

3

You will need one of the four different black key hammer weights, the exact one of those four depending on where in the keybed that broken Gb (F#) is. The lowest keys use B1, the lower mid keys use B2, etc. Your best bet is to look at the hammer you need to replace - it will have the hammer number stamped on the metal part, like ‘B2’, etc. It might also have another number before the B - you can ignore that digit.