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Installation and Operations Manual — Model 400 Series
TROUBLESHOOTING
11
1.1.3 Receiver Stanchion
The receiver stanchion—which is embedded in a concrete foundation—captures (and locks
in model 450) the end of the gate in place when the gate is fully closed. During vehicle
impact, its heavy steel tubes transfer the impact loads to the foundation. Because of its
relatively small size compared to the motor stanchion, it has additional reinforcements
(gussets, stabilizer beams, and braces). Figure 1-3 shows the key components of the receiver
stanchion.
The 450 gates have a pair of two inch thick, stainless steel pins that are hydraulically raised
and locked in place. A pair of proximity switches monitors the location of the pins that locks
the gate from moving until they are in the full-up position. Three conduits are needed for the
450 receiver stanchion from the HPU, one for the hydraulic lines and two for control wires.
The control wire is 120-volts for the IR beam and 24-volt dc for the proximity switches.
Figure 1-3: Model 400 Series Receiver Stanchion
B&B ARMR
A Division of B&B Roadway and Security Solutions
04X0 Rev G
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