Installation and Operations Manual
— Model 400 Series
TROUBLESHOOTING
14
B&B ARMR
A Division of B&B Roadway and Security Solutions 04X0 Rev G
2.3 Typical Installation of the Motor and Receiver Stanchions
Perform the following steps to install the motor and receiver stanchions.(Always refer to your
submittal for your specifications.)
2.3.1 Excavate the holes for the stanchions as shown in the Foundation Drawings
supplied in your submittal. (See generic drawings in the drawings section).
Place the stanchions in the excavation holes.
2.3.2 Install the axles for the roller wheels in the appropriate holes in the
stanchions and tighten the setscrews against the flats on the axles. Tighten
the setscrews securely, and use a locking compound on the setscrews threads
if available. Use care when installing the axles, as they serve as the critical
measuring point for final installation.
2.3.3 The tops of the axles must be 31-¾ inches above the roadbed height at the
roadbed's highest point (If wheels are factory installed make sure they are
35-¾ inches above the roadbed). Adjust the stanchion's position in the
excavation to bring the axles to the correct height. Use a transit to level all
four points (the top of the end of each axle) and make any final adjustments
in the positions of the stanchions so that the transit is reading within 1/32
nd
of
an inch at each of the four points. It is CRITICAL THAT THE SHAFTS
ARE PERFECTLY LEVEL for the gate to function properly. Verify also
that the stanchions are plumb and level.
2.3.4 Place a partial pour of concrete into the excavation holes to lock the
stanchions in place. Use the transit to verify the stanchions remain level and
plumb.
2.3.5 Rough in the conduits. All conduits, fittings, sweeps, and couplings must be
electrical grade (gray color); do not use plumbing type (white color). All
conduits are run to the hydraulic pump unit. Accordingly, run all the conduits
for your installation to the location where the hydraulic unit's concrete pad
will be located. Run the conduits together and be sure the conduits are long
enough to extend above the anticipated height of the hydraulic unit's pad.
(See section 2.5,
Hydraulic Unit Installation
, for additional information.)
2.3.6 Make the final concrete pour, again making sure the axle height does not
change and remain level and plumb. Remove any concrete that might have
splattered inside the exposed conduits.
2.3.7 After the concrete has set, install the roller wheels, collars and nuts onto the
axles. Place two collars (spacers) on each side of the shaft, then the wheel,
then another collar, and finally the nut. Adjust the wheels and axle nuts so
there is no side play in the wheels, but yet they can still be turned easily by
hand. Tighten set screw on the nut. Grease the wheel bearings using the
