Omega 3220 - Inspection + Adjusting the Hammer

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Assembly - Chronograph module for Calibre 3220
OMEGA SA WORLD SERVICE ORGANIZATION GT-19-C-024-E - C - 3220
3.5 Check the uncoupling spring position:
4.0 Inspection + Adjusting the hammer
There is no need to adjust the hammer if the chrono-
graph wheel bridge eccentric (ref. 10.047) has not been
loosened during the service, as the movement is factory-
adjusted.
You can nevertheless check as follows :
1. Fit the chronograph hands (without the dial).
2. Carry out a START-STOP and then reset to zero.
3. Check that the hands are free using a wooden pin:
a. the chrono second hand + minute counter must not
move when the reset is held down;
b. there must be a slight freedom play of the hour coun-
ter (~1° to 5°).
If OK : check finished, move to point 9.
If not OK : move to point 4.
4. Loosen the eccentric screw.
~ 1º to 5º