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. | |
See page 17. | ||
is needed for lightweight garage doors | Slack in Chain Tension | |
(fiberglass, steel, aluminum, door with glass panels, etc.). | ||
is Normal When | ||
See page 24 for details. | ||
Garage Door is Closed | ||
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Header Wall |
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| Extension Spring |
| OR |
| Torsion Spring |
— — — | Access Door |
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| Door Center |
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— —
Safety
Reversing
Sensor
Floor must be level
across width of door
Safety Reversing Sensor
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 must be 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.
•Safety reversing sensor, page 21 - Depending upon garage construction, wood blocks may need to be fastened to mounting locations before sensors are installed.
•Step 10, page 22 - Alternate 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. Other- wise, the safety reverse system may not work properly. See page 30. Floor or door should be repaired.
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| Closed Position | |
| Header | Cable Pulley |
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| Bracket | Bracket | Chain |
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| Trolley | |
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| Cable |
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| Garage |
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| Door |
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| Spring | Manual | |
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| Straight | Release |
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| Rope & Handle | |
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| Door |
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| Arm |
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| Curved |
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Header |
| Door |
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| Arm |
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Wall |
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Door Bracket |
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Garage |
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Door |
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•The opener can be installed within 2 feet of 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 door? If not, Model 7702CB Outside Quick Release is required. See page 38.
•If your door is more than 7 feet high, see longer rails available 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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