Olympus OM-1 Repair Manual page 38

B—17
Function of CA8612 (Lever)
In case of snapshot at low shutter speeds (1/1 1/4), CA8612 removes
ankle from Gear-governor and returns G lever immediately to the
appropriate position. This prevents irregularity of low shutter speeds.
(Ref: E - 27 )
(9) Mirror Operation:
1. When the film is advanced, 8412 is pressed in the direction of
(1). (Fig. A)
2. Since 8448 is stopped by 8432 and 8441 by 8448, 8448 and 8412
are charged. (Fig. B)
3. 8412 is locked by 8419 .(Fig. B)