Finish Install; Adjustment; Limit And Force Adjustment - Chamberlain LA412 Instruction Manual

STEP 12

FINISH INSTALL

1. Turn the release lever clockwise 180° back to the engaged position.
This engages the motor. The illustration shows the release lever in
the engaged position.
2. Turn the key clockwise 180°. This locks the release lever. The
operator is now engaged.
3. Fasten warning signs to the gate with cable ties. Warning signs
MUST be installed on both sides of the gate and in plain view.

LIMIT AND FORCE ADJUSTMENT

To reduce the risk of SEVERE INJURY or DEATH:
• Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a moving gate.
• Too much force on gate will interfere with proper operation of safety
reversal system.
• NEVER increase force beyond minimum amount required to move
gate.
INTRODUCTION
Your operator is designed with electronic controls to make travel limit and force adjustments easy. The adjustments allow you to program where the
gate will stop in the open and close position. The electronic controls sense the amount of force required to open and close the gate. The force is
adjusted automatically when you program the limits but should be fine tuned using the REVERSAL FORCE dial on the control board (refer to Fine Tune
the Force section) to compensate for environmental changes.
The limits can be set using the control board (following page) or a remote control (refer to Limit Setup with a Remote Control in the Appendix).
Setting the limits with a remote control requires a 3-button remote control programmed to OPEN, CLOSE, and STOP.
NOTE: The Test Buttons on the control board will not work until the limits have been set.
INSTALLATION
Release Lever

ADJUSTMENT

• NEVER use force adjustments to compensate for a binding or
sticking gate.
• If one control (force or travel limits) is adjusted, the other control
may also need adjustment.
• After ANY adjustments are made, the safety reversal system MUST
be tested. Gate MUST reverse on contact with a rigid object.
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Key