User manual LIFT-MASTER M75

[. . . ] 845 Larch Avenue Elmhurst, Illinois 60126-1196 www. chamberlaingroup. com ® GARAGE DOOR OPENER For Residential Use Only Model M75 - 1/2HP Owner's Manual Please read this manual and the enclosed safety materials carefully!The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned. The model number label is located on the front panel of your opener. TABLE OF CONTENTS Introduction Pages 2-5 Adjustment Pages 24-26 Safety symbol and signal word review. . . . . . . . . . . . . . . . . . . . . . . . 2 Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Tools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Hardware inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Adjust the travel limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Adjust the force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Test the safety reversal system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Test The Protector System® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Operation Pages 27-30 Assembly Pages 6-7 Attach the T-rail to the motor unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Attach chain to sprocket & install sprocket cover . . . . . . . 6 Tighten the chain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Installation Pages 7-23 Operation safety instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Using your garage door opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Using the wall-mounted door control . . . . . . . . . . . . . . . . . . . . . . . . 28 To open the door manually. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Care of your garage door opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Having a problem?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29-30 Installation safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Determine the header bracket location. . . . . . . . . . . . . . . . . . . . 8-9 Install the header bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Attach the T-rail to the header bracket . . . . . . . . . . . . . . . . . . . . . . 11 Position the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Hang the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Install the door control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Install the light and lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Attach the emergency release rope and handle . . . . . . . 15 Electrical requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Install The Protector System® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19 Fasten the door bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20-21 Connect the door arm to the trolley . . . . . . . . . . . . . . . . . . . . . 22-23 Programming Pages 31-32 To add or reprogram a hand-held remote control . . . . . 31 To erase all codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 3-Button remotes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 To add, reprogram or change a Keyless Entry PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Repair Parts Pages 33-34 Rail assembly parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Accessories Repair Parts and Service Warranty 35 36 36 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual. When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. [. . . ] 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. NOTE: When setting the up limit on the following page, the door should not have a "backward" slant when fully open as illustrated below. A slight backward slant will cause unnecessary bucking and/or jerking operation as the door is being opened or closed from the fully open position. Fully Closed Trolley Door Arm Connector Hole Door Arm Emergency Release Handle Closed Door Fully Open Trolley Correct Angle Door Arm Connector Hole Open Door Door with Backward Slant (Undesirable) Door Arm 23 ADJUSTMENT STEP 1 Adjust the UP and DOWN Travel Limits Limit adjustment settings regulate the points at which the door will stop when moving up or down. · 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 Adjustment Step 3, page 26). NOTE: Repeated operation of the opener during adjustment procedures may cause the motor to overheat and shut off. NOTE: If anything interferes with the door's upward travel, it will stop. If anything interferes with the door's downward travel (including binding or unbalanced doors), it will reverse. HOW AND WHEN TO ADJUST THE LIMITS · If the door does not open completely but opens at least five feet: Increase up travel. NOTE: To prevent the trolley from hitting the cover protection bolt, keep a minimum distance of 2-4" between the trolley and the bolt. · If door does not open at least 5 feet: Adjust the UP (open) force as explained in Adjustment Step 2. If door still won't close completely and the trolley bumps into the pulley bracket (see page 4), try lengthening the door arm (page 22) and decreasing the down limit. WARNING Without a properly installed safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. · Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system. · 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. Door MUST reverse on contact with one-inch high object (or 2x4 laid flat) on floor. CAUTION WARNING CAUTION To prevent damage to vehicles, be sure fully open door provides adequate clearance. 2-4" LEFT SIDE PANEL Cover Protection Bolt Travel Limit Adjustment Screws ADJUSTMENT LABEL · If the opener reverses in fully closed position: Decrease down travel. · If the door reverses when closing and there is no visible interference to travel cycle: If the opener lights are flashing, the Safety Reversing Sensors are either not installed, misaligned, or obstructed. If the door is binding or unbalanced, call for a trained door systems technician. If the door is balanced and not binding, adjust the DOWN (close) force. See Adjustment Step 2. 24 ADJUSTMENT STEP 2 Adjust the Force Force adjustment controls are located on the back panel of the motor unit. Force adjustment settings regulate the amount of power required to open and close the door. If the forces are set too light, door travel may be interrupted by nuisance reversals in the down direction and stops in the up direction. [. . . ] Country Club Road Tucson, Arizona 85706 SERVICE INFORMATION TOLL FREE NUMBER: 1-800-528-2817 HOURS: (Central Std. - Sunday For professional installation, parts and service, contact your local CHAMBERLAIN/ACCESS MASTER dealer. Look for him in the Yellow Pages, or call our Service number for a list of dealers in your area. 1-800-528-2817 ACCESS MASTER GARAGE DOOR OPENER ONE-YEAR LIMITED WARRANTY Chamberlain/Access Master ("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. The product must be used in complete accordance with Chamberlain's instructions for installation, operation and care. [. . . ]