The OUTER SHUTTER ASSEMBLY gears are
the two, small sliding gears that control the angle of the dual-blade variable
shutter assembly from approximately 165 degrees to 360 degrees (closed) and are
buried within the front shutter housing.
The gears controlling them are
oiled. If the gears were greased, use a suitable chemical solvent
(denatured alcohol) to dissolve and remove the grease. If the gears are NOT greased, re-oil them per Bolex specifications.
The INNER SHUTTER assembly consists
of two, 180 degree blades that overlap to control the adjustable shutter angle.
Normal shooting angle is 165 degrees.
This is shown as a silver half-moon on
the shutter dial. The location of the inner shutter blades is accessible when
the shutter housing is disassembled for overhaul. The shutter blades themselves
are never lubricated
The SPEED REGULATOR is NOT
lubricated, except for the ends of the regulator. Located at the rear of the
case is an “oilite” bearing (sintered bronze) that supports one end of the
regulator. It is greased.
The other end (front) of the regulator IS oiled and
NOT greased. The front part of the regulator interfaces with an intermediate
gear that is driven by the spring motor.
Sometimes a non-Bolex camera repairman will
improperly lube both ends with grease or oil both ends. Doing this can allow
excess oil/grease to be thrown onto the speed regulator’s “puck.”
The puck is small, circular piece of
leather than provides a “fixed” friction value against the regulator's friction wheel. If the
puck has oil or grease on it, the regulator will not control the camera’s film
speed accurately.
If the regulator has been improperly lubed, a chemical, such as denatured alcohol, can be used to
dissolve the grease before lubing.
