ASAHI PENTAX S3, Service Manual

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Ease the force of (C75) and also the pressure on (E08), and the top main gear (C23), (E16) (EOS)
slightly turn backward with the tension of the wind-up shaft spring (C57); then the non-return arm (C04)
springs into the groove underneath (E16) and then stops. While maintaining this position, fix the top
idling gear (E17), paying careful attention to
"t". (Diagram 11)
Diagram 11
Then putting on the spill receptacle plate (E09) and screw in with the idling gear retainer screw (E50).
NOTE: A tiny quantity of oil should be applied on (E20).
In a similar manner as described above, turn the top main gear retainer screw (C75) with a driver
until the selector gear stopper (E77) collides against (C11), then relax the force of the driver. The
idling gear part will then move backward slightly and stop in a manner as described above.
At the same time, the pin of the top selector gear (E15) comes to a stop, running against the tip of
(E07). Then slowly press downward the spill (E08); and if (E08) smoothly goes up and down, proper
adjustment has been completed.
If the gap "t" shown in Diagram 11 is too big, (E08) goes beyond the groove of (E20), if too small,
it will not reach the proper position, colliding against the brink of the groove, or resulting in creak,
when (E08) is pressed
In the event (E17) is replaced with a new one, if the groove of (E17) cannot be so properly
positioned even though the engaging position of the gears is changed, the groove needs adjustment
by filing with a fine file. (Diagram 12)
Diagram 12
NOTE: Before assembling (E17), oil or dirts in the hole, its surface and on the parts contacting (E09)
must be thoroughly cleaned and removed. Otherwise, exposure time of the shutter is liable to remain
unstable.
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