11
Checking the X-contact.
ee) Set the time setting disc to 1/60 sec and cock the shutter.
ff) Hold [restrain?] the shutter flap, release the shutter and let the shutter flap run slowly; the
X-contact must fire as shown in Fig. 8. If this does not occur, the contact spring for
insulating-part II must be bent accordingly.
gg) Reassemble the camera, see Assembly of Camera BB.1 - BB.4.
6. Checking the film transport.
NB. Only use a faultless cartridge! When spools for daylight loading are used, these may only
be inserted in cassette cases of the same manufacturer. With film transport from cassette to
cassette, special attention must be paid to the wind-on cassette. If necessary the sliding surface
of the spool may be lightly rubbed with paraffin. The spool must slide easily into the case and
must not be at an angle. All these points being in order, the checking of the camera can begin.
Checking the friction-bush 300.15 U 3 (EXA) or 370.03 U 11 (EXA I/63).
a) Remove the rear cover 350.02 (EXA) or 370.20 (EXA I/63) and the take-up spool 350.10
(EXA) or 370.09 (EXA I/63).
b) Hold the friction bush with the left hand, and at the same time slowly cock the shutter. The
friction bush must give uniform resistance and not scrape, catch or run very much out of
true.
c) A faulty friction bush is to be removed, cleaned and re-lubricated.
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