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Installation (continued)
■ Installing the attachment plate
Depending on whether it is installed on a concrete or wooden ceiling structure, there are two different installation
methods. Carry out by the appropriate installation method which is suited to each ceiling.
z Installing to a wooden structure
Ceiling surface
To the screen
Attachment plate
Attention
z Use only size M8 or
ers.
z All bolts and nuts should be securely tightened, and sufficient measures such as using
two nuts or painting should be employed as necessary to prevent any loosening.
z Installing to a concrete structure
Ceiling surface
Hex nut
To the screen
Attachment plate
6 - ENGLISH
Hex nut
Spring washer
Ceiling mount bolt stay
(beam side)
Flat washer
Hex nut
Ceiling mount bolt
(M8 or
5
/
16
Spring washer
Hex nut
Flat washer
Approx. 5 mm(3/16")
Bracket fixing screw
5
/
" ceiling mount bolts, hex nuts, flat washers and spring wash-
16
Anchoring nut or
curled plug
Concrete
Flat washer
Spring washer
Hex nut
Ceiling mount bolt
(M8 or
/
")
5
16
Spring washer
Flat washer
Approx. 5 mm (3/16")
Bracket fixing screw
1 Make holes in the ceiling surface for inserting the ceil-
ing mount bolts.
z The sizes of the holes in the ceiling should match
the sizes of the mounting holes in the attachment
plate. (Refer to page 5 for attachment positions.)
2 Secure the ceiling mount bolts.
z Check that the ceiling mount bolt locations are
strong enough to bear the full weight of the projec-
tor. If they are not strong enough, use reinforce-
ments while giving full consideration to the required
")
safety coefficient.
3 Secure the attachment plate to the ceiling mount bolts.
z In the side of the attachment plate, the end of the
ceiling mount bolts should protrude from the hex
nuts by about 5 mm. Be sure to use the commercial-
ly available flat washers and spring washers when
installing the attachment plate.
Attention
z Make sure the arrow displayed in the attachment
plate points toward the screen while attaching.
1 Attach the anchoring nuts or curled plugs to a concrete
ceiling and securely fix the four ceiling mount bolts.
(Refer to page 5 for attachment positions.)
z When installing the anchoring nuts or curled plugs,
adhere strictly to the installation instructions supplied
by the manufacturer of the nuts, so they will
not loosen in the concrete structure or be dislodged
from the intended positions.
z Check to make sure that the concrete ceiling struc-
ture can easily bear the whole weight of the projector
and the ceiling mount bracket.
If it is found to be fragile or degraded, use steel or
wooden reinforcements.
2 Secure the attachment plate to the ceiling mount bolts.
z In the side of the attachment plate, the ends of the
ceiling mount bolts should protrude from the hex nuts
by about 5 mm. Be sure to use the commercially
available flat washers and spring washers when
installing the attachment plate.
Attention
z Make sure the arrow displayed in the attachment plate
points toward the screen while attachment.
Two nuts
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