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3.
How to Adjust the Stopper Plate
(1) Loosen the stopper plate mounting screws. After loosening the flexure part mounting
screws of the tuning fork assembly by approximately half a turn while pushing the
guide link downward, fasten them again. (Tightening torque: 2.45 N m)
(2) Insert a gap gauge (0.05 t) between the stopper plate and the guide link, insert the jig
rod into the hole provided on the edge of the stopper plate, and secure the mounting
screws while holding the stopper plate.
(3) Remove the gap gauge. (Check that you feel a little resistance when pulling it out.)
(4) Tap the guide link upward to check the flexure of the tuning fork bends 1 mm or so.
(Figure 5-6)
(Figure 5-7)
Area A
Enlarged view of Area A
Flexure
Stopper plate
Gap gauge
Guide link
Stopper plate
Jig rod
