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15
ADJUSTING THE LIMIT SWITCHES
Test the operator to verify
that the limit switches are
properly set. The operator
should open and close the
gate completely. After
properly setting the limit
switches, the control board
must be set according to the
operator application. The
system accessories should
also be connected to the
control board.
The limit switches determine how far the gate travels to open and close. The closer the limit nut is to the limit switch,
the less distance the gate will travel to open or close. Adjust the limit switches by
moving the limit nuts.
MAKE SURE THE OPERATOR POWER IS OFF BEFORE ATTEMPTING TO
ADJUST THE LIMIT SWITCHES.
Lift and release the limit switch plate to unlock the limit nuts (see illustration at
right). Using a fingertip, roll the limit nuts along the travel shaft until the correct
open and closed gate positions are determined.
If the operator is mounted to the LEFT of the gate (see illustration below):
the left limit switch adjusts the open position. The right limit switch adjusts
the closed position.
If the operator is mounted to the RIGHT of the gate (see illustration below):
the right limit switch adjusts the open position. The left limit switch adjusts
the closed position.
Lift limit switch plate to release,
then adjust limit nut.
Limit Adjustment Lock
Limit Switch
Plate
Right Limit Nut
CLOSED position stop –
if gate opens LEFT to RIGHT
OPEN position stop –
if gate opens RIGHT to LEFT
Left Limit Nut
OPEN position stop –
if gate opens LEFT to RIGHT
CLOSED position stop –
if gate opens RIGHT to LEFT
The closer the limit nut is to the limit switch,
the less distance the gate will travel to
open or close.
Limit Switch
Limit Switch
Limit Switch
Plate
Travel Shaft
–
+
NEG
POS
–
+
NEG
POS
NEGATIVE LEAD from control box
to NEGATIVE Battery Terminal
POSITIVE LEAD from control box
to POSITIVE Battery Terminal
JUMPER
POSITIVE TO NEGATIVE
Battery Terminals
Connecting Back-Up Batteries
Connect the Positive Lead from the control board to the
Positive Terminal on the first battery and the Negative
Lead from the control board to the Negative Terminal on
the second battery.
Now place a Jumper Lead from the Positive Terminal on
the first battery to the Negative Terminal on the second
battery.