Monoprice 7846 MDA-46 - Manual (Page 5)

5 of 8
Installation to Solid Concrete or Cinder Block
Use wall plate ( AA) as template to mark mounting
holes.The top mounting hole should be 5" above the
desired screen center as shown in figure A.1 on page 4.
Drill three 5/16" (8 mm) dia. holes 2" (50 mm) deep as
shown in fig. B.1. Insert concrete anchor (H
secure with M6x 60 screws ( G ). Level, then tighten all
fasteners.
• When installing the wall mount to cinder block, verify that you have a minimum of 1-3/8" of actual solid concrete
thickness in the hole to be used for the concrete anchors. Do not drill into mortar joints! Be sure to mount in a solid
part of the block, generally 1" minimum from the side of the block. Cinder block must meet ASTM C-90 specifications.
It is recommended that a standard electric drill set on a slow setting is used to drill the hole instead of a hammer
drill to avoid breaking out the back of the hole when entering a void or cavity.
• Concrete must have a 2000 psi density minimum. Lighter density concrete may not hold the concrete anchor.
• Make sure that the supporting surface will safely support the combined load of the equipment and all attached hard-
ware and components.
WARNING
CU
TA
W
AY
V
IE
W
INCORRECT
concrete
surface
1
3
2
H
Drill holes and insert anchors ( F).
CORRECT
Place wall plate ( D) over anchors (F) and secure with screws (E).
Tighten all fasteners.
wall plate
plaster/
dry wall
concrete wall plate concrete
plaster/
dry wall
• Always attach concrete anchors directl to load-
bearing concrete.
• Never attach concrete anchors to concrete covered
with plaster, drywall, or other finishing material. If
mounting to concrete surfaces covered with a finishing
surface is unavoidable, the finishing surface must be
counterbored as shown below. Be sure concrete
anchors do not pull away from concrete when tighten-
ing screws. If plaster/drywall is thicker than 5/8",
custom fasteners must be supplied by the installer.
WARNING
• Tighten screws so that wall plate is firmly attached,
but do not overti hten. Overtightening can damage
screws, greatly reducing their holding power.
WARNING
H G
B
solid
concrete
fig. B.1
cinder
block
y
g