Installation and Operations Manual
— Model 400 Series
TROUBLESHOOTING
16
B&B ARMR
A Division of B&B Roadway and Security Solutions 04X0 Rev G
2.4 Installing the Gate and Motor Components
Perform the following steps to install the gate (gate leaf), motor, and limit switches on the
motor stanchion.
2.4.1 Lift the gate assembly using a crane or forklift. Guide the gate onto the first
set of roller wheels, with the wheels fitting between the I-beam and the
channel. Push the gate onto the second set of roller wheels.
2.4.2 Move the gate by hand to the halfway position. Install the stop plates onto
the ends of the gate.
2.4.3 Attempt to slide the gate through about ⅔ of its travel. If the gate binds,
adjust the roller wheels to eliminate the binding.
2.4.4 Mount the motor and gear assembly. Mount the motor on the wheel post
closest to the roadway opening, and on the side between the two single posts.
Leave the motor mount in the down position with the bolts slightly loose
until the motor rotation and limit switches have been tested.
2.4.5 Mount the limit switches. They are generally mounted on the wheel post
located on the barrier's run-out side (see figures 2.4.5-a, and 2.4.5-b).
2.4.6 Bolt the limit switch ramps (these are 2-foot/.66-meter long sections of
electrical rack mounting) so they engage the limit switches' lever arms. The
ramps must be located so they engage the switches before the gate reaches
the desired spot, to allow for drift. The weight of the gate will allow the gate
to coast even after the limit switches are activated. Plan for the gate to travel
between 4 to 6 inches after the limit switch is activated. The ramps are long
to ensure the gate will not coast so far when the gate comes to a stop, that the
switches' lever arms become disengaged.