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Installation to Solid Concrete or Cinder Block
• When installing Peerless wall mounts on cinder block, verify that you have a minimum of 1-3/8" (35 mm) of actual
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" (25 mm) minimum from the side of the block. Cinder block must meet
ASTM C-90 specifications. It is suggested that a standard electric drill on 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 be 2000 psi density minimum. Lighter density concrete may not hold concrete anchor.
• Make sure that the supporting surface will safely support the combined load of the equipment and all attached
hardware and components.
Make sure that wall plate (A) is level, use it as a
1
template to mark two mounting holes. Drill two 1/4"
(6 mm) dia. holes to a minimum depth of 2-1/2"
(64 mm). Insert anchors (E) in holes flush with wall
as shown. Place wall plate over anchors and secure
with two #14 x 2-1/2" screws (D). Level, then tighten
all fasteners.
WARNING
• Tighten screws so that wall plate is firmly attached,
but do not overtighten. Overtightening can damage
screws, greatly reducing their holding power.
• Never tighten in excess of 80 in. • lb (9 N.M.).
WARNING
• Always attach concrete expansion anchors directly to
load-bearing concrete.
• Never attach concrete expansion anchors to concrete
covered with plaster, drywall, or other finishing mate-
rial. 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 tightening screws. If plaster/drywall is thicker
than 5/8" (16 mm), custom fasteners must be sup-
plied by installer. (Not evaluated by UL)
INCORRECT
concrete
wall plate
plaster/
dry wall
WARNING
CORRECT
concrete
wall plate
plaster/
dry wall
5 of 21
1
Drill holes and insert anchors (E).
2
Place plate (A) over anchors (E) and secure with screws (D).
3
Tighten all fasteners.
SOLID
CONCRETE
E
A
D
ISSUED: 11-19-07 SHEET #: 202-9247-3 3-24-08
concrete
surface
E
A
E
D
CINDER
BLOCK
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