MAINTENANCE
(continued)
LENS TURRET
Periodically check the condition of the (2) O-ring drive tires on the auto turret drive wheel. Clean the
surfaces of the O-rings and replace if worn or cracked. DO NOT LUBRICATE. Check the tension of the motor
mount expansion spring and replace if stretched.
The indexing plate of the lens turret rotates on (3) grooved ball bearings mounted to the turret ring
casting. The uppermost bearing is retained by means of an eccentric bushing, allowing a degree of adjustment.
To adjust, loosen the socket head bearing screw, and increase or decrease bearing pressure by rotating the
eccentric bushing with a 9/16 inch end wrench. Do not apply excessive pressure; allow the index plate to rotate
freely, but without “play” between the plate and ring.
On both AUTO and MANUAL turrets, the index stop is actuated by the a compression spring mounted
between the stop pin and the solenoid (or lever). Make certain the spring is correctly installed. Replace
immediately if worn; the correct spring tension is required to seat the index stop pin. The index stops on the
lens indexing plate are mounted with (3) screws each. Two of the mounting holes are slotted to provide a
degree of fine adjustment of the lens position. Securely tighten all (3) screws when the lens is correctly
positioned. See the following ADJUSTMENTS & REPLACEMENTS section for detailed information regard-
ing lens alignment and positioning.
Magnets are mounted to brackets on the index stops to actuate the ring-mounted proximity switch and
establish lens/aperture logic. Periodically clean the exposed surfaces of these magnets to insure good magnetic
conduction. Keep mounting hardware tight to maintain correct alignment.
L.E.D. indicators next to the reset switch display operation of the aperture-sensing proximity switch.
When the center L.E.D. is illuminated, the proximity switch is sensing the
inboard
magnet, and setting the
FLAT aperture. The lower L.E.D. glows when the proximity switch senses the
outboard
magnet, and actuates
the SCOPE aperture. The uppermost L.E.D. glowing indicates that the proximity switch senses
two
magnets,
thereby setting the SPECIAL aperture (third lens, when used).
Clean the turret hinge to allow free operation. Make certain that the turret is fully closed when latched.
The deadstop screw in the front center of the turret casting can be adjusted to remove “play.”
Do not shim the
turret,
or
offset the index stops
in an attempt to correct “keystoning.” Keep lenses on correct optical centers.
Clean the lenses as recommended by the lens manufacturer. Do not remove the lenses from the turret for
cleaning; doing so would alter the preset focus of the lenses. Swing the turret open to the THREAD position for
easy access to the rear surfaces of the lenses. Close and latch the turret after cleaning the lenses.
OVERALL APPEARANCE
Clean all enameled surfaces of the projector regularly. Surfaces coated with oil will attract and hold dust
and film particles.
19
Содержание APOGEE
Страница 17: ...12 Figure B is in optimal alignment ...
Страница 35: ...30 FILM TRAP Assembly No 52 00223 ...
Страница 39: ...34 APOGEE LENS TURRET Assembly No 52 00279 ...
Страница 45: ...CONTROL CABINET Wiring Diagram 40 ...
Страница 54: ...OIL PUMP ASSEMBLY 49 ...
Страница 63: ......