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. Weather conditions can affect the doer movement, so occasional adjustment may be needed

The maximum force adjustment range is about 3/4 of a complete turn° Do not force controls

beyond that point. Turn force adjustment controls with a screwdriver

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 FORCES

1.Test the DOWN (close) force

-Grasp the door bottom when the door is about halfway through DOWN (close) travel.. The door should reverse. Reversal halfway through down travel does not guarantee reversal on a 1-1/2"

(3.8 cm) obstruction. See Adjustment Step 3, page 29. If the door is hard to hold or doesn't reverse, DECREASE the DOWN (close) force by turning the control counterclockwise.. Make small adjustments untii the door reverses normally After each adjustment, run the opener through a complete cycle.

-If the door reverses during the down (close) cycle and the opener lights aren'tflashing, INCREASE DOWN (close) force by turning the control clockwise, Make small adjustments until the door completes a close cycle_After each adjustment, run the opener through a complete travel cycle.. Do not increase the force beyond the minimum amount required to close the door.

2.Test the UP (open) force

. Grasp the door bottom when the door is about halfway through UP (open) travel The door should stop.. If the door is hard to hold or doesn't stop, DECREASE UP (open) force by turning the control counterclockwise, Make smatl adjustments until the door stops easily and opens fully. After each adjustment, run the opener through a complete travei cycle..

•If the door doesn't open at least 5 feet (1.5 m),

INCREASE UP (open) force by turning the control clockwise.. Make sma!i adjustments untit

door opens completely Readjust the UP limit if necessary. After each adjustment, run the opener through a complete travef cycle.

Without a properlyinstalledsafetyreversalsystem, persons(particufariysmall children)could be SERIOUSLYINJUREDor KILLEDby a ctesing garage door

•Too muchforce on garagedoor will interferewith properoperationof safetyreversatsystem

•NEVERincreaseforce beyondminimum amount requiredto closegaragedoor

•NEVERuseforceadjustmentsto compensatefor a bindingor sticking garagedoor

•if onecontrol (forceor travellimits) is adjusted,the other control mayalso needadjustment

•After ANYadjustmentsare made,the safetyreversal system MUSTbetested Door MUSTreverseon contactwith 1-It2" high (38 cm) obiect (or 2x4 laid fiat) on floor

Fome Adjustment

Controls

E:::::::3

ADJUSTMENT LABEL

Open Force

CIose Fo:ree

28

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Craftsman 139.53920D owner manual Adjustment Step, Adjust the Force, Test the Down close force, Test the UP open force
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139.53920D specifications

The Craftsman 139.53920D is a versatile and robust garage door opener, designed to provide both convenience and security to homeowners. Known for its reliability and advanced features, this model stands out in the competitive market of garage door openers.

One of the key features of the Craftsman 139.53920D is its powerful motor. With a lifting capacity suitable for most standard garage doors, it boasts a 1/2 horsepower motor that delivers the strength necessary to open and close heavy garage doors effortlessly. This ensures a smooth and quiet operation, minimizing noise disruptions, which is especially valuable for homes with living spaces above or adjacent to the garage.

In terms of technology, the Craftsman 139.53920D incorporates a range of advanced features aimed at enhancing user experience. It comes equipped with Craftsman's proprietary Triband technology, which operates on three frequencies, providing increased range and improved signal reliability. This technology minimizes signal interference, ensuring that the opener responds quickly to your commands, whether you are close by or parked at the end of the driveway.

Safety is also a critical aspect of the Craftsman 139.53920D. The unit includes an automatic reverse feature that immediately stops and reverses the door's motion if it detects an obstacle in its path. This is vital in preventing accidents and ensuring the safety of children and pets. Additionally, the opener is compatible with the Security+ 2.0 system, which offers rolling code technology that changes the access code each time the remote is used, adding an extra layer of security against unauthorized access.

Installation of the Craftsman 139.53920D is user-friendly, with clear instructions provided and all necessary hardware included. The unit can accommodate various garage door styles, making it a flexible choice for different homeowners.

Furthermore, the Craftsman 139.53920D offers smartphone compatibility through the Craftsman smart app, allowing users to control their garage door from anywhere, receive real-time alerts, and even monitor the status of the door remotely. This feature makes it easier than ever to ensure that your garage is secure, even when you're not at home.

In summary, the Craftsman 139.53920D is an excellent choice for homeowners seeking reliability, advanced technology, and convenient features in a garage door opener. Its blend of power, safety mechanisms, and smart technology makes it a standout option for enhancing home security and convenience.
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