Test the Safety Reversal System

ADJUSTMENT STEP 3

TEST

•With the door fully open, place a 1-1/2" (38 cm) board (or a 2x4 laid fiat) on the floor centered under the garage door

•Operate the door in the down direction The door must reverse on striking the obstruction

ADJUST

. If the door stops on the obstruction it is not

traveling far enough in the down direction Increase the DOWN limit by turning the DOWN limit adjustment screw counterclockwise 1/4 turn

NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down position See the illustration on page 25

•Repeat the test

•When the door reverses on the 11/2" (38 cm) board, remove the obstruction and run the opener through 3 or 4 comp]ete travel cycles to test adjustment

°If the unit continues to fail the Safety Reverse Test call for a trained door systems technician

IMPORTANT SAFETY CHECK:

Test the Safety Reverse System after:

o Each adjustment of door arm length, limits, or force controls

o Any repair to or adjustment of the garage door (including springs and hardware)

•Any repair to or buckling of the garage floor o Any repair to or adjustment of the opener

___

ADJUSTMENT STEP 4

Test The Protector System s

-Press the remote control push button to open the door

•Place the opener carton in the path of the door

,Press the remote control push button to close the door The door will not move more than an inch

(25 cm), and the opener lights will flash

The garage door opener will not close from a remote if the indicator light in either sensor is off (alerting you to the fact that the sensor is misaligned or obstructed)

If the opener closes the door when the safety reversing sensor is obstructed (and the sensors are no more than 6" (15 cm) above the floor), call for a trained door systems technician

Without a properlyinstalledsafetyreversa]system persons (particularlysmalt children) could be SERIOUSLYINJUREDor KILLEDby a closing garage door"

•Safetyreversalsystem MUSTbetested everymonth

. If onecontrol (forceor travellimits) is adjusted the other control mayalso needadjustment

. After ANYadjustmentsaremade,the safetyreversa] system MUSTbe tested Door MUSTreverseon contact with 1-I12" high (38 cm) object(or 2x4 laid fiat) on the floor

*"( B cm) board (or a 2x4 laid feat)

Without a properly installedsafetyreversingsensor persons(particularlysmall children) could be SERIOUSLYINJUREDor KILLEDby a closing garage door

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.

Craftsman 139.53920D owner manual Test the Safety Reversal System, Test The Protector System s

Models: 139.53920D

ADJUSTMENT STEP 3