INSTALLATION
MANUAL
MODEL 773 SERIES
REINFORCED CRASH ARM
B&B ARMR: A Division of B&B Roadway and Security Solutions
Page 17 of 38
0773-9001 Rev D
B&B ARMR reserves the right to change any information concerning product or specification without notice or obligation.
3.3.2.3.
Place the rebar cage containing the anchor bolts with retention plate into the
center of each excavated hole.
The rebar cage should fit approximately 2.75 in. (70 mm) above the lower
surface of the finished foundation and approximately 2.25 in. (57 mm)
below the uppermost surface of the finished foundation.
The anchor bolts must protrude 2.5 in. (64 mm) above the upper level of
the finished foundation to ensure enough thread is available to secure the
stanchions.
3.3.2.4.
There are two (2) remaining retention plates. These plates are meant to be
attached to field supplied 2x4 or 4x4 boards. These boards will span across the
foundation excavation and will hold the cage and attached anchor bolts in place
during the concrete pour. Place one (1) on top of each anchor bolt assembly to
act as a template. Use the supplied 1”-8 anchor nuts to hold the anchor bolts in
place during the pour.
Anchor Bolt
Retention Plate
Anchor
Bolts
Anchor Bolt
Retention Plates
as templates
Middle Bars
Tie Encased
Retention Plates
to middle bar
1”-8 Nuts to hold
the anchor bolts
in place
Mounting holes –
4x places – for
attaching field
supplied
excavation spans
