Chamberlain SL 1000-X3 - Manual (Page 15)

Rev J Doc 01-20098 Page 15 of 44
I. SETTING LIMIT CAMS
• The left limit cam is close to the output shaft. The right limit cam is close to the control box
(see Figure 14).
• Limit cams are adjusted by releasing the cam lock plate, rotating the cams, then reseating
the cam lock plate. When the adjustment is finished, be sure the cam lock plate is seated
into the notches of BOTH CAMS.
• Each cam rotation (360°) equals 11” of gate travel. Each notch equals 5/8” of gate travel.
Figure 14. Limit Cam Setting.
NOTE: The following procedures are for FRONT drive gates. For MID and REAR
drive gates, reverse Left Gate and Right Gate procedures.
1. SETTING RIGHT GATE LIMIT CAMS (gate opens right, as seen from the gate operator
side)
1. Make sure that switch S2 is set to the “Right” position.
2. Turn on gate operator power switch.
3. Using manual OPEN and STOP, move the gate to its proper open limit position.
4. Rotate the Left cam until it just barely closes the limit switch.
5. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
6. Rotate the Right cam until it just barely closes the limit switch.
7. Open and close the gate to check the limit cam settings. If required, readjust the limit
cams until they are set properly.
2. SETTING LEFT GATE LIMIT CAMS (gate opens left, as seen from inside the property)
1. Make sure that switch S2 is set to the “Left” position.
2. Turn on gate operator power switch.
3. Using manual OPEN and STOP, move the gate to its proper open limit position.
4. Rotate the Right cam until it just barely closes the limit switch.
5. Using manual CLOSE and STOP, move the gate to its proper closed limit position.
6. Rotate the Left cam until it just barely closes the limit switch.
7. Open and close the gate to check the limit cam settings. If required, readjust the limit
cams until they are set properly.