LiftMaster LA100 LA100 Linear Gate Operator Manual - Page 22

4 GATE FORCE SENSITIVITY ADJUSTMENT Do not use force adjustments to compensate for a binding or sticking gate. Excessive force will interfere with proper operation of the safety reverse system and may cause damage to the gate or operator. The gate operator will automatically detect how much force is required to open and close the gate under normal conditions, however, the user must initialize the Gate Force Sensitivity. The Gate Force must be carefully adjusted to allow the gate to reverse when an obstruction is encountered. This adjustment determines how much force is allowed before the gate reverses after making contact with an obstruction. If the Gate Force is set too light, gate travel may be interrupted by nuisance reversals in either the open or close directions. Weather conditions can effect the gate movement, occasional adjustments may be necessary. The Gate Force Sensitivity Adjustment control is located on the control board. Maximum force adjustment range is 260 degrees, about 3/4 of a turn. Do not force the control beyond that point. By turning the Gate Force control clockwise will decrease the amount of force and turning the control counter clockwise will increase the force. 5 TEST CLOSE FORCE With the gate in the open position and the Gate Force control set to MIN, place the cardboard container the gate operator was shipped in against the close side latch post, such that the gate will hit the box when it closes. Press the remote control to close the gate. The gate should reverse when the gate hits the box and return to the full open position. 6 TEST OPEN FORCE With the gate in the closed position and the Gate Force control set to MIN, place the cardboard container against an entrapment area on the open side. Press the remote control to open the gate. The gate should reverse when the gate hits the box and return to the closed position. The Gate Force Sensitivity Adjustment control can be adjusted to help eliminate nuisance reversals, however, the gate should be tested as stated above after any adjustment of the Gate Force control. Make small adjustments until adequate force is obtained to minimize nuisance reversals while maintaining reversals off the box as described above. Once the gate travel and learn limit have been programmed as described above, the gate is ready to be used. The gate can be controlled via wireless remote controls (see Accessories). To open the gate, the user must press and release the button on the remote control. The gate will begin opening and stop at the open position. To close the gate, the user must press and release the button on the remote control. The gate will begin closing and stop at the closed position. When the gate is traveling and another command is given from the remote control, the gate will stop. The next command given will make the gate travel in the opposite direction and stop at the corresponding open or closed position. MIN Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing gate. • Too much force on gate will interfere with proper operation of safety reversal system. • NEVER increase force beyond minimum amount required to close gate. • 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. Outside Property Rigid Object Inside Property Force Adjustment FORCE R17 MAX Programming 22