Installation 14
Step 4: Arm Attachment
For easier access during installation, the top cover of the unit may be opened by removing the two wing nuts from underneath, inside the cabinet.
WARNING
When following the procedure below, the motor belt will turn and the drive shaft will move during some of the steps. Keep hands and tools out of the gate cabinet and away from the belt and drive shaft or serious injury may result. Be sure to disconnect power while installing the arm attachment.
MODEL BG770: STANDARD ARM
Attach arm to the arm hub flange as shown in Figure 7.
Hub Flange
Gate Arm
Hex Bolt
Lock Washer &
Figure 7
MODEL BG770: OPTIONAL ARM
Attach arm to the arm hub flange as shown in Figure 8.
Figure 8
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Rev E