Manual Unthreading Of The Projector; Cleaning And Maintenance; Film Cleaning And Lubrication - Bell and Howell Autoload 456 How To Use Manual

19. manual
unthreading
of
the
projector
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Damaged film, torn perfora-
tions or poor splicing may
cause your projector to
thread or function improp-
erly. If you have to manually
unthread the projector, fol-
low these four simple steps:
First, move Control Switch
to "OFF" position, and move
take-up reel to rewind posi-
tion. Open Lower Film Guide
and grasp film. Also, grasp
film at rear where film enters
take-up reel. Slowly slide
film out of bottom film
channel. See picture A.
Next, open the lens housing
door and slide film away
from the two bottom film
rollers. See picture B.
Then slide film away from
the top film roller and the
rubber Friction Film Drive
Roller. See picture C.
Last, move film out of main
film channel, by moving film
up and down as you are
drawing it out. See picture D.
After completing this proce-
dure, rewind your film back
onto Front Reel, checking
for bad splices or various
types of film damage that
may have caused the im-
proper function.
20. cleaning and
maintenance
Your projector has been lu-
bricated at the factory so
that you need not oil it.
However, there are cleaning
steps you should perform
that will assure you of the
superior performance you
expect from your Bell &
Howell projector.
APERTURE AND FILM CHANNEL
CLEANING APERTURE AND FILM CHANNEL
The film channel and aperture must be brushed clean after each show. It is
strongly recommended that you use a very soft camel hair brush for this clean-
ing area. Just gently brush up and down to remove any dust or dirt particles that
may be in this area. NOTE: Never use a hard or metal instrument to clean the
aperture and film channel area. Do not attempt to clean the aperture opening by
passing the brush through it.
CLEAN I NG THE LENS
Pull the Focus Knob outward and pull out the lens. Wipe off the lens surface
with a soft cloth or sheet of lens tissue moistened with a few drops of good lens
cleaner, such as used for eye glasses. Be sure to clean both ends of the lens.
Be sure to engage the Focus Control Pi,n in the lens groove when replacing lens.
GENERAL
It is also a good practice to clean your film regularly with a film cleaning kit
available from your photographic dealer. In addition to your cleaning pro-
cedures, we recommend your projector be adjusted and checked periodically
by the Bell & Howell factory, a branch office, or by one of our Bell & Howell
approved service stations.
20a. film cleaning and lubrication
Occasionally, a film may not be lubricated by the processor. This unlubricated
film can cause unsteady pictures. If this occurs, lubricate the film with prepa-
rations made for this purpose, such as "Kodak Movie Film Cleaner, with
Lubricant."
To increase the life of your films and to assure good projection, your films
should be lubricated when they are new and before they are projected.
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