Gate Bracket and Chain Installation
Revision D Installation 1-13
Installing the Target Magnet
Figure 1-17.
1. With the gate CLOSED, mark the chain link directly across
from target sensor that is closest to the trailing edge of the
gate. See Figure 1-17.
2. Press the OPEN button to move the chain a few feet and
then press STOP.
3. Find the mark on the chain link and count about 4 fixed
links toward the operator (approximately 3 inches, 76mm).
4. Remove the screw from the target magnet.
5. Fasten the target magnet to the chain link as shown in
Figure 1-18. Make sure the large white centerpiece is facing
toward the operator. Insert the screw and tighten it securely.
To avoid damage to the idler wheel, the head of the screw must be flush with the chain rollers.
6. Press OPEN and wait for the gate to travel and stop at its full open position.
7. Press CLOSE. As the gate approaches the full close position, the target magnet passes the target sensor and
an audible beep is heard. Read the NOTE below, and then proceed to step 8 to verify that the operator has
learned its limits.
If “ALERT 15 - NO TARGET” appears on the display after the target magnet has been
installed and a full gate cycle completed (steps 6 & 7), it means that the target magnet has not
been detected by the operator. Check chain alignment and make sure the target magnet is posi-
tioned properly and passes across the face of the sensor. See Figure 1-18. Repeat steps 6 and 7.
NOTE: Only one magnet
is required. Two
target sensors are
provided for
LH & RH gate
applications,
but only one
sensor
is used.
Mark the
chain
Figure 1-18.
Install
one target
magnet
Sensor
3" (76mm)
4 links
Large white
centerpiece
Magnet
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