FP 75 E
Issue: 08/2012
56
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The more the skate and the runners wear the more the pressure has to be
increased for best picture steadiness.
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With the time the indicator
Â
will move
more and more to the left, in the direction
of the film gate.
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As soon as the indicator reaches the out-
most left position a general re-adjustment
is necessary.
• For this, turn the fine adjusting screw
anticlockwise until the indicator position
reaches the outmost right side.
• Now loosen the lock nut
Ã
, (wrench size
13 mm or knurled nut), and adjust the skate pressure by turning the adjusting screw
Á
until the picture on the screen is just at the edge to become unsteady.
• Fix the adjustment by tightening the lock nut
Ã
.
• Then turn the upper fine adjusting screw
until the picture just becomes steady.
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These adjustments are correct when the indicator
Â
is now positioned in the right
third of the scale and the picture on the screen has just gone over the threshold from
unsteady to steady.
6 .4 .6 Adjusting the Lens Holder
• Thread a test film.
• Set the lens holder via the focusing
adjustment in the mid-position (mark-
ing position).
• Insert the lens and move it forwards
and backwards until the picture is
sharp. Mark this position in the lens
tube.
• Stop the projector.
• Loosen the handwheel (arrow) and
move the lens together with its tube
in the holder towards the film gate.
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The lens clamping screw on tube will
be visible.
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Check the lens position in the tube
and if necessary correct the position
corresponding to your marking.
• Fix the lens in the tube by tightening the clamping screw (Allen key 3).
• Move the tube back to the stop.
• Fasten the handwheel (arrow).
3
