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Sharp AN-CM270 Installation Instructions Manual page 4

Ceiling mounting bracket

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INSTALLATION INSTRUCTIONS
1.1
a.
Select straddle beam or single beam installation.
b.
Use the ceiling bracket as a template to mark the location where the pilot holes
should be drilled.
c.
Drill the pilot holes for the support screws using a 1/8 " drill bit into the center of
the beam. (See Figs. 2 and 3).
1.2
Screw the ceiling plate to the beams. Use at least 6 screws and metal washers
supplied with the unit. These screws should be tightened firmly to insure a
vibration-free support. (See Figs. 2 and 3).
Two sizes of hex head lag bolts are provided. Use shorter screws for sheet rock
surfaces and use the longer screws if the ceiling surface is constructed of a wood
lath and plaster.
CAUTION: THE BRACKET MOUNTING SCREWS MUST GO DIRECTLY INTO
THE BEAMS. SHEETROCK OR LATH AND PLASTER WILL NOT PROVIDE A
SUFFICIENTLY SECURE SUPPORT.
FIGURE 2. ILLUSTRATION OF STRADDLE BEAM CEILING BRACKET INSTALLATION
Sheetrock or lath
and plaster ceiling
Ceiling Mounting
Bracket
Plastic Ceiling
Bracket Trim Cover
NOTE: THE OUTER ROW OF HOLES ARE 16" BETWEEN CENTERS WHICH IS
THE MOST COMMON BEAM SPACING IN RESIDENTIAL WOOD FRAME
CONSTRUCTION.
Velcro
PAGE 4
CEILING BRACKET AN-CM270
Ceiling Beam
Washers
1/4 X 10 Lag Bolt

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