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7
3. Install the combined
Plates #1 and #2 (or
Plate 1 with the EXT10)
securely to the Building
Structure following all of
the Local Building/Con-
struction Codes. Use
suitable hardware in ad-
equate quantity and size
depending on the installa-
tion requirements.
Caution: The Projector
together with the mounting brackets
weighs 80 pounds (36.29 kg).
4. Attach the Horizontal Tilting Plate #3 to the previ-
ously combined plates (already installed on ceiling)
using the 1/4-20 inch screws provided. Refer to
Figures 15 and 16. Install two 1/4-20inch screws
with rubber spacers and metal washers part way
into the welded metal studs (indicated #1). The
newly combined Plate 3 provides 10 degrees of
horizontal tilt. After positioning the plate, loosely
tighten the screws.
Assemble the MT20 by performing the steps below,
refer to figure 10:
Notes: The MT20 hardware, fasteners, mounting tem-
plate and parts list are located in a separate
shipping carton from the projector. Plate #4
supplied with the LN9101M will be used instead
of the MT20 Plate #4.
1. Insert Base Plate
connectors #1 into
the lateral position-
ing slots #3 from the
underside of Plate 1.
The lateral position-
ing slots will give
you 2-1/4 inches of
lateral adjustment for
projector alignment.
Refer to figure 11.
2. Base plate connector
holes #3 provide 15
degrees of horizontal
rotation adjustment.
Attach horizontal
adjustment Plate 2 to
the projector mount
ceiling Plate 1 using
the four (4) 5/16-18
inch nuts and wash-
ers provided. Refer
to figures 12 and 13.
Note: When the
EXT10 Exten-
sion Pole will
be used, attach
the “Outside
Pole” end to
Plate #1 (instead of Plate #2) using four (4)
5/16-18 inch nuts and washers provided. Refer
to figure 14.
MT20 Assembly
Figure 11
1
2
3
3
4
2
Base Plate Connectors #1
Projector Mount Ceiling Plate 1
Plate 1
2
Ceiling Wire
Access
4
Figure 12
3
3
3
3
Wire
Access
Plate 2
Figure 13
Wire
Access
Plates 1 & 2
Figure 14
EXT10
Plate #1
Figure 16
Plate 3
Tilting
Capability
Tilting
Capability
Figure 10
MB20 and LK1 Mounting Plates
Plate 1
Plate 4 (LK1)
Plate 2
Plate 3
MT20 and LN9101M Mounting Plates
(LN9101M)
Figure 15
Wire
Access
1
1
2
2
2
2
2
2
2
2
3
3
Plate 3
Holes for 1/4-20 inch screws
Holes for 1/4-20 inch screws
Holes for 1/4-20 inch screws with
rubber washer and steel washer
Indicates Forward
Positioning of Mount
1
2
3