16
Replacing Projection Lamp
and Cleaning Lens
WARNING:
High-wattage projection lamps
get very hot in use. Be sure to allow ample
time for cooling before you handle them.
Cooling can be accelerated by turning off
the lamp switch and leaving the fan switch
on after you have moved the master con
trol lever to OFF. When the bulb has
cooled sufficiently, turn off the fan switch
and
disconnect the power cord before re
moving the lamphouse cover.
Loosen the lamphouse cover screw
(Figure 11), and lift off the cover.
Remove the
LAMP PLUG
(Figure 13)
by pulling it straight out. Rotate the
lamp
PIVOTING
CLIP
(Figure 14) clock
wise to release the upper lip of the
lamp reflector, grasp the white ceram
ic insulator, and lift the
LAMP
up and
away from the lamp mount.
To insert the new lamp, reverse the
procedure given above, being careful
to fit the lower lip of the lamp reflec
tor inside the two lamp
RETAINING
CLIPS
for proper positioning of the
lamp.
FIGURE 13
LAMP
PLUG
Caution:
Use extreme care when handling
the new lamp. Neither the quartz arc tube
nor the interior reflector coating should
be touched. Fingerprints or other deposits
can cause shortened life, premature reduc
tion in light output, or uneven illumination.
The lamp mount controls the posi
tioning of the lamp and is adjusted at
the factory for maximum evenness of
illumination. Readjustment should
not be necessary. However, if adjust
ment appears to be needed, loosen the
two
ADJUSTMENT SCREWS
and reposi
tion the mount.
Cleaning the Projection Lens:
The pro
jection lens should be cleaned with
care. Remove the lens by drawing it
out of the lens holder. With a soft,
lintless cloth or
KODAK
Lens Cleaning
Paper, carefully
·
wipe the front and
rear lens surfaces. Do not use a wet
cloth; if moisture is required, breathe
on the lens or use a drop of
KODAK
Lens Cleaner.
WARNING:
The use of treated papers or
cloths can harm the
LUMENIZED
surface.
LAMP
FIGURE 14
ADJUSTMENT
RETAINING
PIVOTING
SCREWS
CLIPS
CLIP
Cleaning
Film Gate
The film
GATE
(Figure 15) should be
cleaned at frequent intervals. Because
of the rapid stop-and-go motion of the
film, particles of the emulsion lubri
cant are eventually rubbed off the
edges of the film and lodged on the
gate; this can damage film.
Use care in removing or replacing
the gate; force is not necessary.
To avoid the possibility of scratch
ing the gate, the pulldown claw should
be retracted before the gate is re
moved. Retract the claw by turning
the trial thread knob until the white
line is toward you.
Remove the projec
tion lens.
Open the gate and insert a clean
CARD
or piece of paper to protect the
polished surfaces of the gate; then
withdraw the gate.
Use a soft, damp, lintless cloth to
clean the gate. If necessary, wrap the
cloth around a toothpick or match
stick to clean the film track.
To clean the aperture, reach
through the projection-lens holder
with a small, soft brush, or a damp
ened pipe cleaner and clean off the
edges of the aperture.
Before replacing the gate, make
sure the pulldown claw is retracted.
Then guide the upper notched part of
the gate so that it bears against the
under part of the top hinge-retaining
SPRING.
Push in on the gate tab to en
gage the top and bottom hinges.
CARD
FIGURE 15
GATE
SPRING
