How to repair Kawai CS digital piano keys Slip Tapes

The video explains the repair of Kawai GF2 Keys of digital Pianos. The Original slip Tapes are Exchanged by wooven felt pads. Series CS, CA MP11 has similar slip tapes which fails after some years. What also leads to stiff hanging keys is a to tight felt at the key guide pins. Its helpfull to press the guiding felt with a special Tongs or a Metal part and to widen the through-holes in the wood a little bit ,which guides the metal pins.