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MODEL BGUS/BGUS-D • SG/SG-D OPERATOR INSTALLATION GUIDE
-8-
ELECTRICAL CONNECTION AND ADJUSTMENTS
All LINEAR gate operators are supplied with a power disconnect switch to turn on and off the power supply available to the
operator. Incoming power should be brought into the operator and connected to the labeled pigtails in the disconnect box,
following wiring specifi cations on Page 4. A wiring connections print can be found on the inside cover of the operator.
Proper thermal protection is supplied with the operator. The motor contains a thermal overload protector to protect from
overheating the motor due to overload or high-frequency operation. This overload will reset automatically after the motor
cools down.
Power supply must be of correct voltage and phase.
Always follow national and local electrical codes when wiring and use a
qualifi ed electrician.
Always disconnect power from operator before servicing.
Keep clear of gate arm during operation.
VENT PLUG INSTALLATION
Gear reducers used in LINEAR gate operators will have pinned vent plugs installed prior to shipping in order to keep the
oil from spilling out during transportation. During installation this pin should be removed to allow proper ventilation. See the
illustrations below.
OR
The limit cams for all models of barrier gate operators have
been pre-set at the factory for approximately 90 degrees of
motion. If you need to adjust this further, please follow the
directions below. If the arm reverses just after you attempt
to open it, you may need to adjust the open direction current
sensor one turn higher. Refer to Page 9 for details of current
sensing adjustment.
1. For more downward travel, loosen the wing nut on
the LSC-1 (down) limit cam and rotate the cam slightly
in the “B” direction.
2. For less downward travel, loosen the wing nut on the
LSC-1 (down) limit cam and rotate the cam slightly in
the “A” direction.
3. For more upward travel, loosen the wing nut on the
LSO-1 (up) limit cam and rotate the cam slightly in the
“A” direction.
4. For less upward travel, loosen the wing nut on the
LSO-1 (up) limit cam and rotate the cam slightly in the
“B” direction.
LIMIT CAM ADJUSTMENTS