User manual LIFT-MASTER 985

[. . . ] TM ® Garage Door Opener For Residential Use Only Model 985 1/3HP Owner's Manual s s s s s Please read this manual and the enclosed safety materials carefully!Fasten the manual near the garage door after installation. The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned. Periodic checks of the opener are required to ensure safe operation. [. . . ] One full turn equals 2" of trolley travel. Closed Door Adjustment: Decrease DOWN limit · Turn the DOWN limit adjustment screw clockwise 5 complete turns. The trolley will travel to the fully closed position. · Manually close the door and lift the door arm to the trolley. The arm should touch the trolley just ahead of the door arm connector hole. Refer to the fully closed trolley/door arm positions in the illustration. If the arm is behind the connector hole, adjust the limit further. One full turn equals 2" of trolley travel. Connect the door arm to the trolley. · Close the door and join the curved arm to the connector hole in the trolley with the remaining clevis pin. It may be necessary to lift the door slightly to make the connection. · Run the opener through a complete travel cycle. If the door has a slight "backward" slant in full open position as shown in the illustration, decrease the UP limit until the door is parallel to the floor. 23 Adjustment Section: Pages 24 ­ 26 Adjustment Step 1 Adjust the UP and DOWN Limits Do not make any limit adjustments until the Safety Reversing Sensors are completely installed. Limit adjustment settings regulate the points at which the door will stop when moving up or down. The door will stop in the up direction if anything interferes with door travel. The door will reverse in the down direction if anything interferes with the door travel (including binding or unbalanced doors). To operate the opener, press the Door Control button. Run the opener through a complete travel cycle. · Does the door open and close completely?· Does the door stay closed and not reverse unintentionally when fully closed?If your door passes both of these tests, no limit adjustments are necessary unless the reversing test fails (see page 26). Adjustment procedures are outlined below. Run the opener through a complete travel cycle after each adjustment. [. . . ] Forbes Boulevard, Suite 104 Tucson, Arizona 85745 SERVICE INFORMATION TOLL FREE NUMBER: 1-800-654-4736 HOURS: (Central Std. - Saturday For professional installation, parts and service, contact your local CHAMBERLAIN/LIFT-MASTER dealer. Look for him in the Yellow Pages, or call our Service number for a list of dealers in your area. 1-800-654-4736 LIFT-MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY The Chamberlain Group, Inc. ("Seller") warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it will be free from any defect in materials and/or workmanship for a period of one year from the date of purchase. [. . . ]