INSTALLATION
MANUAL
MODEL 773 SERIES
REINFORCED CRASH ARM
B&B ARMR: A Division of B&B Roadway and Security Solutions
Page 20 of 38
0773-9001 Rev D
B&B ARMR reserves the right to change any information concerning product or specification without notice or obligation.
3.3.6.
Step 6 – Control System Installation (For model series 773Ex or 773Hx only)
For this section, refer to the Electric or Hydraulic Drive Installation and O&M manual
that came with the unit for more details.
3.3.7.
Step 7 – Arm Installation
Arm should be installed in the horizontal (closed) position.
3.3.7.1.
Lift barrier arm with crane or hoist and lower into position over drive
stanchion.
3.3.7.2.
Align the pin holes in the arm with the bearing holes in the Drive Stanchion.
3.3.7.3.
Insert hinge pin from one side of the Drive stanchion thru limit sensor pack,
both bearings (interior of stanchion uprights) and arm. Do not tighten any
screws, bolts or bearings at this point.
Installed hinge pin should NOT extend beyond the Drive stanchion on
either side.
Figure 11 - Arm installation process
Hinge Pin
Sensor
Pack
Bearing Holes
- Stanchion
Pin Hole -
Arm
