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Installation (continued)
Installing to a concrete structure
Anchoring nut or curled
Concrete ceiling
Hex nut
Spring washer
Ceiling mount
Spring washer
Hex nut
To the
Attachment plate
screen
plug
Flat washer
bolt
Hex nut
Flat washer
Approx. 5 mm
(3/16")
1) Attach the anchoring nuts or curled plugs to a
concrete ceiling and securely fix the four ceiling
mount bolts. (Refer to page 7 for attachment
positions.)
z When installing anchoring nuts or curled plugs,
strictly adhere to the installation instructions
supplied by the manufacturer of the nuts so that
they will not loosen in the concrete structure or
be dislodged from the intended positions.
z Check to make sure that the concrete ceiling
Hex nut
structure can easily bear the weight of the
projector and the ceiling mount bracket. If it is
found to be fragile or degraded, use steel or
wooden reinforcements.
2) Temporarily secure the attachment plate to the
ceiling mount bolts.
(It will be permanently secured after adjusting the
installation angle in horizontal directions on page 13.)
z The threaded end of ceiling mount bolt at
the attachment plate side should protrude by
approx. 5 mm (3/16") from the hex nut. Be sure
to use commercially available flat and spring
washers to install the attachment plate.
Note
z The signal cable of the projector can also be run
inside the adjustment poles. In such a case, be
sure not to damage the cord or the cable. (The
inside diameter of the adjustment pole is 47 mm
(1-27/32").)
ENGLISH - 9
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