Camera body 503CW
October 1996Revision 0
6:4
Remount the mirror frame and the upper shutter flap
by holding the frame in position and aligning the upper
shutter flap to the bearing holes.
Push in both bearing hubs and centralise the mirror and
shutter flap side movement by using shim washers.
These come in two thicknesses 0.10 and 0.20 mm
(810503) and (810505) respectively.
Tighten up both screws (825661) and secure with safety
lacquer.
Fit a washer (810503) on each side of the lower shutter
flap shaft and mount in the same way as the upper one.
Check that the shutter flaps and the mirror frame move
freely and that the flaps are central to the rear plate
inner frame.
Fig. 61.
Check that the foam plastic dampers (13397) are in
place and glued to the rear plate where the flaps meet.
Assemble the lever, spring and spring retainer. Locate
the spring so the three items are together.
Connect the three items to the shutter shaft and secure
it with pin (811108).
Fig. 62.
The lower shutter is completed in the same manner but
note that a weaker spring is used, (816804).
Check that the upper shutter spring pressure is
approximately twice as strong as the lower shutter.
Auxillary shutter & Mirror
Fig. 61
Shim washers
Fig. 62
13397
Spring retainer
assembly
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