22
3. Curtains unserviceable.
Dismantle camera, as under Disassembly of Camera A.1 to A.3.
a) Let the shutter run out.
b) Release the retaining plate for spring-spindles 370.03-25, slacken spring spindles 370.03 U7
(press to the left) and remove the barrel-pin [Zylinderstifte] 0,8h 6x5 DIN 7 from the spring
spindles.
Note:
For the modified spring spindle version remove circlips 1.5 DIN 6799 from the spring-
spindles, remove the locking-springs 370.03-52 on the shutter-plate (right) 370.07 and the
two spring-spindle locking-wheels 370.03-51 (right-hand thread) from the spring-
spindles.[Remove locking-springs and slacken locking-wheels before removing circlips]
c) Hold the shutter-wheels 370.07 U7 and 370.07 U8, remove pinions 370.03-27 (one on the
left and two on the right) and do not interchange them.
d) Undo the 4 fixing-screws for the shutter plate (left) 370.06 (see Fig. 6) and cover-plate
370.03-23 [3 screws inside on Exa II, 2 on Exa IIb]. If necessary withdraw the large speed
adjustment wheel370.06-31 from its 2 flats, having marked its position at the small
adjusting wheel 370.04-41 and on the timing cam 370.06-30. Take off the shutter-plate.
[Note: lower right screw not there on late model– take out one at 11 o’clock relative to it]
e) Lift out the spring-spindles, curtain spindles 370.03-10 and 370.03-49 as well as redirection
spindles 370.03-30 and 370.03-31 from the shutter-plate (right) 370.07.
f) Remove the old curtains 370.03 U5 and 370.03 U9 from their spindles (noting the
attachment points and the direction of rotation), and attach the new curtains to the spindles,
following the old attachment points and direction of rotation.
g) Insert the curtain spindles and redirection spindles in the shutter-plate (right).
h) Add the shutter-plate (left) – in the process inserting the curtain spindles and redirection
spindles – and screw on.
i) Insert the spring-spindles, fit the barrel-pin, screw on the retaining-plate and lightly tension
the curtains.
