Sentry gate opener universal actuator limit switch adjustments

Sentry 300 automatic gate opener ornamental Iron vinyl chain link farm ranch gate openers

Sentry Service Manual
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5. Attach Universal Actuator Bracket to hinge post or post being used

Mounting hardware needed:
two 3/8” x 16 x 8” carriage bolts
two 3/8” USS flat washers
two 3/8” serrated hex nuts

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Universal actuator bracket with associated bracket (round or square post mount) determined above then tighten nuts securely.

Welding is the recommended method of securing the linear actuator mounts to the gate and hinge post. Bolt on brackets are provided and are acceptable but may require frequent service to keep tight. They must be very securely attached (i.e. carriage bolts with lock nuts and washers). Lag type bolts are not recommended. Loose or unstable linear actuator mounts will result in improper operation.

IMPORTANT CAUTIONS:

Do not perform any welding with the actuator cable plugged into the control board or the battery connected. Serious damage to the control board and/or battery may occur if attempted.
Use control box as a template to determine mounting screw locations and then attach screws and slide on control box.
Do not attempt to hold control box and drill mounting holes this could damage the preinstalled components.
Always disconnect the battery power from the control board using the Plug N Go harness prior to wiring any devices to the control board.

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