Craftsman 139.10158 Owner's Manual

Contents

ADJUSTMENTIntroductionYour garage door opener is designed with electronic controls tomake setup and adjustments easy. The adjustments allow you toprogram where the door will stop in the open (UP) and close(DOWN) position. The electronic controls sense the amount offorce required to open and close the door. The force is adjustedautomatically when you program the travel.NOTE: If anything interferes with the door’s upward travel it willstop. If anything interferes with the door’s downward travel, it willreverse.UP (Open)DOWN (Close)ONE-PIECE DOORS ONLYWhen setting the UP travel for a one-piece door ensure that thedoor does not slant backwards when fully open (UP). If the door isslanted backwards this will cause unnecessary bucking and/orjerking when the door is opening or closing.PROGRAMMING BUTTONSThe programming buttons are located on the left side panel of thegarage door opener and are used to program the travel.Without a properly installed safety reversal system, persons(particularly small children) could be SERIOUSLY INJURED orKILLED by a closing garage door.l Incorrect adjustment of garage door travel limits will interferewith proper operation of safety reversal system.l After ANY adjustments are made, the safety reversal systemMUST be tested. Door MUST reverse on contact with 1-1/2"(3.8 cm) high object (or 2x4 laid flat) on floor.To prevent damage to vehicles, be sure fully open door providesadequate clearance.UPButtonAdjustmentButtonDOWNButtonPROGRAMMING BUTTONSCORRECTINCORRECT28