INSTALLATION
MANUAL
MODEL 773 SERIES
REINFORCED CRASH ARM
B&B ARMR: A Division of B&B Roadway and Security Solutions
Page 22 of 38
0773-9001 Rev D
B&B ARMR reserves the right to change any information concerning product or specification without notice or obligation.
Figure 13 - Bearing bolts and Adjustment bolts
Snug all adjustment screws on both bearings
BEFORE
final
tightening. This helps to ensure each bearing stays aligned before final
tightening of bearing bolts.
3.3.7.6.
Verify the hinge pin is flush to the stanchions sides. Tighten the set screws on
the bearing, locking the hinge pin to the bearings – 2x total, 1x per bearing.
3.3.7.7.
Slide the arm along the hinge pin and center the arm between the drive
stanchion weldments.
3.3.7.8.
Once centered, tighten the arm cradle set screws. (4x total).
Figure 14 - Arm Cradle Set Screws (4x total)
Bearing
bolts
Adjustment
screws
Arm Cradle
Set Screws
Bearing
Arm
Cradle
Hinge Pin
