Olympus OM-1 Repair Manual page 42

B—21
When the aperture ring is turned, the Connecting lever on the lens turns
8879. 8932 which is clinched to the 8925 and is in contact with the
Cam of 8879, will rotate itself. While doing so, it will turn 8925 in
the arrowed direction and further 8929 which is engaged on 8925. Now,
8924 will turn since it is made in unit with (8929). It will roll up
8945 to pull the Moving pulley and 8944 and further to turn the pulley
on the exposure meter.
At this time, 8946 adhered to the outer perimeter of 8879 will also move
to pull 8938. When the aperture ring is returned to the previous position,
this will insure that the boss of 8879 will always hit the Connecting
lever of the lens.
(13) Mechanical Section of Exposure Meter:
Changes in Shutter Speed and Lens Opening:
When the shutter dial is turned from 1/1000 toward B and the
aperture ring from F 16 toward open, the string (8944) moves in
the arrowed direction as shown in the illustration, next page, to
turn 8980. (9000) in unit with 8980 turns 8984 and further 8982
through 8983 which is united with 8984. 8982 is fixed on the
meter frame by screws. Thus, the meter is activated. On the
pulley M is applied a force in the direction (—^ ) by 8999
and 9021 engaged on 8996, and the string (8944) is given tension
constantly.
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