Christie D4K40-RGB Replacement Instructions Manual page 9

Removing the LOS
The height of the bench jack during removal of the LOS is important. The LOS must not drop or fall.
Exercise due diligence and caution when performing the following procedure.
1. To begin, carefully evaluate and set the projector's elevation.
a) Measure the distance between the projector chassis and the surface the projector is
resting on.
b) If the distance measured is less than 250 mm (10 inches), use the jacking nut on each
foot of the projector to raise the projector chassis. The 250 mm distance is for clearance,
to prevent LOS damage and to accommodate the bench jack during LOS removal and
replacement.
CP4325-RGB and CP4330-RGB (Cinema 4K-RGB) projectors are equipped with
feet that raise the projector the entire 250mm distance. If replacing the LOS on a
Cinema 4K-RGB projector, raise and level the projector as described in Steps 1
and 2 in this procedure, then proceed to Step 5.
Do not raise each foot the entire length of travel as this can destabilize the system and
potentially cause damage or injury. Rather, raise each foot sequentially, using a cross or
diagonal pattern, in 25 mm increments per foot, then repeat the entire sequence until the
required height for each foot has been achieved.
2. Level the projector, using the jacking nuts to adjust.
4K-RGB Laser Optical Subsystem Replacement Instruction Sheet
020-103107-02 Rev. 1 (07-2019)
Copyright 2019 Christie Digital Systems USA, Inc. All rights reserved.
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4K-RGB Laser Optical Subsystem Replacement Instructions
9