Now, to do the replacement, first take the new bellows and match them up with the old Cuckoo Clock tops. Place the new ones next to the old after matching the correct side with the correct side. Take the old bellow tops and break them off of the tube bottoms. ...
process until I got close and then used the knurled knob to dial in the correct pendulum period. This process gets you pretty darned close. Now the process is to let the clock run and compare it to the time on your phone every hour to see that the clock is keeping the correct time. ...