Planning

Identify the type and height of your garage door. If you have a one-piece door, follow the assembly instructions contained in this manual and refer to the Installation Instructions One-Piece Door for installation procedures. Survey your garage area to see if any of the conditions below apply to your installation. Additional materials may be required. You may find it helpful to refer back to this page and the accompanying illustrations as you proceed with the installation of your opener.

Depending on your requirements, there are several installation steps which may call for materials or hardware not included in the carton.

•Installation Page 10 – Look at the wall or ceiling above the garage door. The header bracket must be securely fastened to structural supports.

•Installation Page 12 – Do you have a finished ceiling in your garage? If so, a support bracket and additional fastening hardware may be required.

•Installation Page 13 – Do you have a steel, aluminum, fiberglass or glass panel door? If so, horizontal and vertical reinforcement is required.

•Installation Page 18 – Depending upon garage construction, extension brackets or wood blocks may be needed to install sensors.

•Installation Page 18 – Alternate floor mounting of the safety reversing sensor will require hardware not provided.

Without a properly working safety reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door.

•The gap between the bottom of the garage door and the floor MUST NOT exceed 1/4" (6 mm). Otherwise, the safety reversal system may NOT work properly.

•The floor or the garage door MUST be repaired to eliminate the gap.

•Do you have an access door in addition to the garage door? If not, Model 7702CB Outside Quick Release is required. See Accessories page.

•Look at the garage door where it meets the floor. Any gap between the floor and the bottom of the door must not exceed 1/4" (6 mm). Otherwise, the safety reversal system may not work properly. See Adjustment Step 3. Floor or door should be repaired.

•The opener should be installed above the center of the door. If there is a torsion spring or center bearing plate in the way of the header bracket, it may be installed within 4 feet (1.22 m) to the left or right of the door center.

•If your door is more than 7 feet (2.13 m) high, see rail extension kits listed on Accessories page 33.

COMPLETED INSTALLATION

Horizontal and vertical reinforcement is needed for lightweight garage doors (fiberglass, steel, aluminum, door with glass panels, etc.). See page 13 for details.

Header Wall

Slack in chain tension is normal when garage door is closed.

Torsion Spring

FINISHED CEILING

Support bracket & fastening hardware is required.

See page 12.

Rail

Wall-mounted

Door Control

Access

Center ofDoor

Garage Door

 

Gap between floor

Safety

 

Reversing

 

and bottom of door

Sensor

Safety Reversing Sensor

must not exceed

 

 

1/4" (6 mm)

 

3

 

Header

 

CLOSED POSITION

 

Bracket

Trolley

Trolley

 

 

Stop Bolt

 

 

 

 

Garage

 

 

 

Door

 

 

Chain

 

Spring

 

Emergency

 

 

 

 

 

 

 

 

Release

 

 

 

 

Rope &

Header

 

 

 

Handle

 

 

Straight Door Arm

Wall

 

 

 

 

Curved Door Arm

Garage

 

 

Door Bracket

 

Door