CAUTION
Make sure the supporting surface will support
the load limits outlined in the Caution at the bottom
of page two. Tighten lag bolts until the wall plate is flat
against the wall. Do not overtighten lag bolts (L). Each
lag bolt must be screwed into a wood stud.
CAUTION
Make sure the concrete or brick wall is at least
3.5” thick. Make sure the anchor is seated completely
flush with the concrete surface even if there is another
layer of material, such as drywall. If drywall is over 5/8”
thick custom lag bolts must be used. Concrete must be
a minimum of 2000psi in density.
Diagram B Diagram C
Wood Concrete
7/32”
(5.5mm)
3.5” (90 mm) 3.5” (90 mm)
3/8”
(10mm)
M
L
L
KK
5
SA51 Manual | www.senecaav.com
Step 2: Mount Wall Plate
Wood Stud Wall
The wall plate must be mounted to two wood studs. Use
a stud sensor to locate the two studs, clearly marking
the centers of the studs. Use a long level to make sure
these marks are horizontally level. Attach the wall plate
template to the wall at the desired height so that the
stud centers are visible through mounting slots, and drill
four pilot holes. Once you have drilled the pilot holes,
remove the wall plate template.
Attach the wall plate using four lag bolts (L) and lag bolt
washers (K) (see Diagram B). Make sure the wall plate
is flat against the wall surface. Do not over-tighten lag
bolts (L).
Brick or Concrete Wall
Attach the wall plate template to the wall at the
desired height, using a long level to ensure that the
template is level. Mark six hole locations on the wall
for the concrete anchors (we suggest placing the holes
as shown in Diagram C where possible). Drill the six
holes perpendicular to the wall using a masonry bit (see
Diagram C). Do not drill into mortar joints. Remove the
wall plate template. Insert a concrete anchor (M) into
each of these holes until it is flush with the wall surface.
Place the wall plate over the six anchors, then mount
using the lag bolts (L), and washers (K). Make sure the
wall plate is flat against the wall surface. Do not over-
tighten lag bolts (L).
Before you start drilling, attach the wall plate template to your wall. It will make marking and drilling level pilot holes
easier, and catch a lot of the dust. Remember to remove it before you attach the wall plate.
