Craftsman 139.53978SRT Safety, Based on your particular requirements, there are, Closed Position

Page 4

Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.

 

 

 

FINISHED

CEILING

 

 

 

Support

bracket &

 

 

 

fastening

hardware

Horizontal

and vertical reinforcement

is

required.

is needed

for lightweight garage

doors

See

page 17.

(fiberglass, steel, aluminum,

door

 

 

 

with glass panels, etc.).

 

 

 

 

See page 24 for details,

 

 

 

 

Header Wall

Extension

Spdng

Access Door

OR

Spdng

safety

Reversing

Ser_sor

Floor must be level

Sensor

across width of door,

Based on your particular requirements, there are

several installation steps which might call for materials and/or hardware not included in the carton.

•Step 1, page 12 - Look at the wall or ceiling above the garage door. The header bracket mustbe securely fastened to structural supports.

•Step 5, page 17 - Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware may be required.

O

Header

Closed Position

Bracket

/Trolley

Stop Bolt Trolley

_u_rJ_ Enl_'l_YRed_ ase

•Safety reversing sensor, page 21 - Depending upon garage construction, extension brackets (see Accessories page 38) or wood blocks may be needed to fasten sensors to mounting locations.

•Step 10, page 22 - Floor mounting of the safety

reversing sensor will require hardware not provided.

•Step 11, page 24 - Do you have a steel, aluminum, fiberglass or glass panel door? If so, horizontal and vertical reinforcement is required.

•Look at the garage door where it meets the floor.

It must close on the floor all the way across. Otherwise, the safety reverse system may not work properly. See page 30, Floor or door should be repaired.

HeaderJ- _ Door

Wall\ Arm

Door

Garage Bracket

Door -

•The opener can be installed within 4 feet to the left or right of the door center if there is a torsion spring or center bearing plate in the way of the header bracket or door bracket area. If your door has extension springs, the opener must be installed in the center of the door. See pages 12 and 24.

•Do you have an access door in addition to the garage doo_ If not, Model 53702 Emergency Key Release is required. See page 38.

•If your door is more than 7 feet high, see the rail extension kits listed on page 38.

You may find it helpful to refer back to this page as you proceed with the installation of your opener.

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Contents Garage Door Opener Start by reviewing these important safety alert symbols Instructions. Read the instructions carefullyYoull Need Tools Based on your particular requirements, there are SafetyClosed Position One-Piece Door without Track One-Piece Door with TrackClosed Position Carton Inventory SectionSafety Reversing Sensor @ @Assembly Section Pages 8 Assembly StepFasten the Rail to the Opener Install the Idler PulleyHardware Shown Actual Size Install the Chain/Cable Attach the Sprocket Cover Master Link Clip-OnSpdng Unk CapTighten Chain = Lo Tro,.yDetermine Header Bracket Location Installation Section Pages 12 Installation StepProceed to , One-piece door without track Jamb hardware ExampleWall Header Bracket Installation Install the Header BracketCeiling Header Bracket Installation Attach the Rail to the Header Bracket Insert a ring fastener to securePosition the Opener With the door fully open and parallel to the floorInstallation Step Hang the OpenerInstall the Door Control Slide down to secure. Adjust screw for snug fitSerious injury or death Shown Actual Size UihJIlnJIlilililil IlilnInstall the Light and the Lens Install the lightInstall the lens Attach the Emergency Release Rope and HandleElectrical Requirements Permanent Widng ConnectionsRightWrong Safety Reversing System Important Information about Safety Reversing SensorSensor Safety Reversing Installing the BracketsBe sure power to the opener is disconnected Garage door track installation preferredAligning the Safety Sensors Mounting and Wiring the Safety SensorsTrouble Shooting the Safety Sensors IIIIIlllillllILllllllllllllllll Fasten Door BracketIIIIIII11111111LLLIIIIIlI NutRBok Connect Door Arm to TrolleyAbove holes Adjustment Procedures for One-Piece Doors Adjustment Section Pages 28 Adjustment Step How and When to Adjust the LimitsAdjust the UP and Down Limits Adjustment Step If the door does not close completelyAdjust the Force How and When to Adjust the ForcesTest The Safety Reversing Sensor Test the Safety Reverse SystemImportant safety check Press the remote control push button to open the doorTo reduce the risk of severe injury or death to persons MaintenanceSchedule Operation of the Door Control see Operation of Your OpenerManual disconnect Position Receiver and Remote Control Programming If you have a Premium Control ConsoleIf you do not have a Premium Control Console SECURITY,IHaving a Problem? Situation Probable Cause and SolutionSituation Probable Cause Solution Door opens butOpener lights blink for 5 seconds Doesnt turn offRail Assembly Parts Repair PartsInstallation Parts Opener Assembly Parts Br co.tact ASSEMe,vAccessories Only through Sears Parts & ServiceFor Sectional Doors Onl With the door closedIndex Sears Warranty For in-homemajor brand repair servicePara ordenar piezas con entrega a domicilio

139.53978SRT specifications

The Craftsman 139.53978SRT is an advanced garage door opener that combines reliability, performance, and ease of use. Designed to cater to the needs of modern homeowners, this model stands out with its robust features and technological innovations.

One of the key highlights of the Craftsman 139.53978SRT is its powerful motor, delivering a peak horsepower equivalent to ensure smooth and efficient operation. This allows it to effortlessly lift even the heaviest of garage doors, making it suitable for various types of residential garage doors. The quiet operation of this opener is another major advantage, allowing for a peaceful environment in and around the garage.

Another notable feature is the smart technology integration. The Craftsman 139.53978SRT is compatible with a range of smart home systems, allowing users to control their garage door remotely via a smartphone app. This feature not only adds convenience but also enhances security, as users can receive alerts and notifications about the status of their garage door, ensuring peace of mind.

Security is a priority with this model, which comes equipped with rolling code technology. This mechanism generates a new code each time the remote is used, preventing unauthorized access and ensuring that your garage remains secure from intruders. Additionally, the enhanced safety features include safety sensors that detect obstacles, automatically reversing the door's movement if something is detected, thereby preventing accidents.

Installation and setup are straightforward, thanks to the user-friendly design of the Craftsman 139.53978SRT. The unit includes detailed instructions and all necessary hardware for installation. Many users can set it up within a few hours without the need for professional assistance.

With a durable construction, the Craftsman 139.53978SRT is built to last. It has a sleek design that complements various home aesthetics while withstanding wear and tear from daily use. Maintenance is minimal, with easy access to essential components for servicing.

In summary, the Craftsman 139.53978SRT offers a perfect blend of power, technology, and security features. Its user-friendly design, combined with smart technology compatibility and robust safety measures, makes it an ideal choice for homeowners seeking a reliable garage door opener. Whether you’re looking to upgrade an old system or install a new one, this model is sure to meet your requirements and enhance the functionality of your garage.
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