Canon NEW F-1 Service Manual page 56

1. Mirror
1.1 Lubricate the mirror hinge with UTLM-10.
1.2 Mirror (1) thrust play should be between 0.05 to 0.25mm. Adjust collar (1)-3.
1.3 Mirror (1) must move smoothly under its own weight.
2. Pentaprism Contacts
2.1 Soldering time to the pentaprism contacts (2) and (3) should be kept as short as
possible to avoid loosening of the contacts in their plastic seats. (Placing the
contacts on a damp sponge while soldering is one possible method.)
2.2 The left and right contacts are different. Take care not to reverse them. When
viewed from the mount (front) side, the contact with the recessed (X sync) pin
goes on the left.
3. The upper left and lower right screws (4)-l holding the focusing screen mask (4) are
positioning screws.
4. Mirror Shock Absorber (6)
4.1 The clearance between the mirror (1) and the shock absorber (6) should be 0.1 to
0.4mm (after the mirror angle has been adjusted). The absorber (6) is available is
several sizes to make the adjustment.
4.2 Align the light shield ridges on the shock absorber (6) with those on the inside of
the front panel.
5. Install the rubberized fabric light shield (10) with the rubberized side forward
(toward the mount), put it flush at the top and adjust horizontally as it is installed.
Use plyobond.
6. With the mirror in the full-up position against the light shield, the clearance between
the mirror charge lever and the mirror-up stopper is 0.1 to 0.4mm. If it is out of
tolerance, change to a different sized mirror-up stopper (12).
Note: Numbers in parentheses in the text correspond to circled numbers on page 55.
Disassemble in normal order and reassemble in reverse order.
Canon NEW F-1 Service manual
Assembly and Adjustment Notes
Assembly and Adjustment Notes
Page 56