Canon NEW F-1 Service Manual page 40

Disassembly Notes
1. Mg3
1.1 To remove Mg3 (1), remove screw
(1)-1. Open the armature and
remove (l)-2 using a small cross-
recess screwdriver. Remove one
more screw (l)-3 and the magnet
can be removed.
1.2 The armature is bonded to its base
with silicone rubber.
1.3 Apply current (8mA) to close the the
magnet. In this condition, run
silicone KE 471RTV into the crack
between the armature and armature
lever, and let dry about 12 hours.
2. Signal Lever (2)-2's screw (2)-l has
left-handed threads.
Assembly and Adjustment Notes
1. Mg3 Holding Power Check
1.1 Unhook the spring.
1.2 Push at "A" until the dowel spacing
is 0.1 to 0.2mm. The armature
should set.
1.3 Apply 8mA current through the
magnet coil and push with a tension
page at "B". Read just before the
armature releases.
Std: 280g or greater
Note: Numbers in parentheses in the text correspond to circled numbers on page 39.
Disassemble in normal order and reassemble in reverse order.
Canon NEW F-1 Service manual
1.4
2. Rewind Switch (SW 17) Adjustment
2.1
2.1
3. To install the multi-exposure (M.E.)
Page 40
Assembly and Adjustment Notes
When current flows through the coil
the armature closes to the yoke.
Bend the lever at the point shown to
meet the following two conditions.
1) With at least one layer of film on
the spool, there should be at least
0.2mm separation between the
contacts. (Visual check)
2) With no film on the spool, the
contacts should have at least
0.2mm of overtravel. (Visual
check)
Check with a continuity checker.
lever (9), hold the M.E. ratchet lever
(9)-2 out of the way.