Planning
Identify the type and height of your garage door. Survey | • Look at the garage door where it meets the floor. Any | |
your garage area to see if any of the conditions below | gap between the floor and the bottom of the door must | |
apply to your installation. Additional materials may be | not exceed 1/4" (6 mm). Otherwise, the safety reversal | |
required. You may find it helpful to refer back to this page | system may not work properly. See Adjustment Step 3. | |
and the accompanying illustrations as you proceed with | Floor or door should be repaired. | |
the installation of your opener. | SECTIONAL DOOR INSTALLATIONS | |
Depending on your requirements, there are several | ||
• Do you have a steel, aluminum, fiberglass or glass | ||
installation steps which may call for materials or hardware | ||
panel door? If so, horizontal and vertical reinforcement | ||
not included in the carton. | ||
is required (Installation Step 11). | ||
• Installation Step 1 – Look at the wall or ceiling above | ||
• The opener should be installed above the center of the | ||
the garage door. The header bracket must be securely | ||
door. If there is a torsion spring or center bearing plate | ||
fastened to structural supports. | ||
in the way of the header bracket, it may be installed | ||
• Installation Step 5 – Do you have a finished ceiling in | ||
within 4 feet (1.22 m) to the left or right of the door | ||
your garage? If so, a support bracket and additional | ||
center. See Installation Steps 1 and 11. | ||
fastening hardware may be required. | ||
• If your door is more than 7 feet (2.13 m) high, see rail | ||
• Installation Step 10 – Depending upon garage | ||
extension kits listed on Accessories page. | ||
construction, extension brackets or wood blocks may | ||
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be needed to install sensors. |
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• Installation Step 10 – Alternate floor mounting of |
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the safety reversing sensor will require hardware not |
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provided. |
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• Do you have an access door in addition to the garage |
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door? If not, Model 7702CB Emergency Key Release is |
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required. See Accessories page. |
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SECTIONAL DOOR INSTALLATION |
| FINISHED CEILING |
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| Support bracket & |
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| Slack in chain | fastening hardware is |
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Horizontal and vertical reinforcement | required. See page 15. |
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tension is normal |
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is needed for lightweight garage doors |
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when garage |
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(fiberglass, steel, aluminum, door with |
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glass panels, etc.). See page 23 for details. | door is closed. |
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Header Wall |
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| Extension Spring | Motor Unit | |
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| Torsion Spring |
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| Door Control |
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— — | Vertical | |
— | Centerline of | |
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— — | Garage Door | |
Safety | ||
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Reversing | ||
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— — | Sensor | |
Gap between floor and bottom of | ||
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| door must not exceed 1/4" (6 mm). |
Safety Reversing Sensor
Access Door
Header | CLOSED POSITION | ||
Bracket Trolley |
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Stop Bolt | Trolley | ||
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Garage |
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Door |
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| Chain |
Spring |
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| Emergency | |
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| Straight | Release | |
| Door |
| Rope |
| Arm |
| & Handle |
Header | Curved |
Wall | Door Arm |
| Door |
Garage | Bracket |
Door |
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