Disassemble piano, remove action rail
Check for easing
Remove each whip assembly one at a time and lubricate all 3 action centers (wood/felt/pin) with 8 parts naptha/1 part silicone. Reassemble.
1 broken whip – install new one (lowest note)
Remove hammers one at a time and lubricate action centers, reassemble.
Lube key posts with Vintage Vibe key post lube, reinstall keys, clean
Set lost motion with capstan screws (ensures the jack accurately returns in the hammer butt on slow return of a depressed key)
Install harp. Check that hammers hit center of reeds while avoiding braces. Install damper rails. Re-assemble piano
Check key height
Adjust damper screws so all reeds are equally dampened
Set let off with regulating screws (evens out loud/soft notes and even feel).