Adjusting these dials alters how far the garage door travels while closing and how much force in kilograms the motor uses.
How to adjust liftmaster garage door travel.
How to program the travel limits for liftmaster chamberlain craftsman garage door opener with arrow type program buttons with a black button.
Sure the garage door opens far enough for your vehicle but not past the point where the bottom of the garage door is even with the header of the garage door opening.
This video details how to adjust the opener force and travel of the door.
Door must reverse on contact with 1 1 2 3 8 cm high object or 2 x 4 laid flat on floor.
Incorrect adjustment of garage door travel limits will interfere with proper operation of safety reversal system.
After any adjustments are made the safety reversal system must be tested.
This video demonstrates how to program the travel on a chamberlain garage door opener with a yellow learn button.