User manual LIFT-MASTER 2500B

[. . . ] 845 Larch Avenue Elmhurst, Illinois 60126-1196 www. liftmaster. com ® GARAGE DOOR OPENER Model 2500B For Residential Use Only N w!e See P 35 age for O y sor ces c al A ble w ion vaila Ne pt A he t Owner's Manual 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. [. . . ] Connect the straight door arm section to the door bracket with the 5/16"x1-1/4" clevis pin. · Pull the emergency release handle, disconnecting the outer trolley from the inner trolley by pulling straight down on the emergency release handle and sliding the outer trolley back toward the motor unit. · Connect the curved door arm section to the trolley using the 5/16"x1-1/4" clevis pin and ring fastener. NOTE: Adjusting the limits on the following page: · The trolley will automatically connect. If not, review the trolley lockout feature on page 28. · 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. Door Bracket Ring Fastener Lock Washers 5/16" Nuts 5/16"-18 Clevis Pin 5/16"x1-1/4" Straight Arm Bolts 5/16"-18x7/8 Curved Door Arm Inner Trolley Outer Trolley Door Arm Emergency Release Handle Closed Door Inner Trolley Outer Trolley Correct Angle Open Door Door with Backward Slant (Incorrect) 23 ADJUSTMENT STEP 1 Program the Travel Limits Travel limits regulate the points at which the door will stop when moving up or down. Follow the steps below to set the limits. 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. · NEVER use force adjustments to compensate for a binding or sticking garage door. · 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 1-1/2" high object (or 2x4 laid flat) on floor. CAUTION Figure 1 Black Button Indicator Light WARNING CAUTION Antenna Orange Button To program the travel limits: 1. Press and hold the black button until the yellow indicator light starts flashing slowly then release. Push and hold the black button until the door reaches the desired UP (open) position (Figure 2). Adjust the position of the door by using the black and orange buttons. Black moves the door UP (open) and orange moves the door DOWN (close). Check to be sure the door opens high enough for your vehicle. NOTE: Refer to previous page for correct door position for one-piece door. Push the remote control or door control (Figure 3). This sets the UP (open) limit and begins closing the door. Press either the black or orange button before the door hits the floor. [. . . ] Look for him in the Yellow Pages, or call our service number for a list of dealers in your area. 1-800-528-2817 LIFTMASTER GARAGE DOOR OPENER FIVE-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 60 full months from the date of purchase. Additionally, the motor and drive belt are warranted for the lifetime of the product. The product must be used in complete accordance with Chamberlain's instructions for installation, operation and care. [. . . ]