Before you begin, survey your garage area to see whether any of the conditions below apply to your installation.
Slack in chain tension is normal when garage door is closed.
Header
Wall
FINISHED CEILING Support bracket & fastening hardware is required. See page 17.
Access Door
Safety Reversing Sensor
Safety | Gap between floor and bottom of | |
door must not exceed 1/4". | ||
Reversing | ||
Sensor |
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Closed Position
| Chain |
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| Header |
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| Door |
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| Manual |
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| Straight | Curved | Release | |
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| Door | Door |
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| Garage |
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| Arm | Arm |
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Header | Door |
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Wall |
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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 (not supplied) may be required
•Safety reversing sensor, page 21 - Depending on garage construction, wood blocks may need to be securely fastened to mounting locations before sensors are installed.
•Step 10, page 22 - Alternate floor mounting of the safety reversing sensor will require hardware that is not provided.
•Step 11, page 25 - Generally, a
•Step 11, page 25 - Depending on your door's construction, you might need additional mounting hardware for the door bracket.
•Do you have an access door in addition to the garage door? If not, Model 1702 Outside Quick Release is required. See page 38.
•The gap between the bottom of the garage door and the floor cannot exceed 1/4". Otherwise, the safety reverse system may not work properly. See
page 30. The floor or the door should be repaired.
Slack in Chain Tension
is Normal When
Garage Door is Closed
Access
Door
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| Safety | |
| Floor must be level | Reversing | |
Safety | Sensor | ||
across width of door | |||
Reversing |
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Sensor
Closed Position
| Chain | Chain | Trolley |
| Pulley | ||
| Bracket |
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Header |
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Wall | Header | Curved |
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| Bracket | Door Arm | |
| Door |
| Manual Release |
| Straight | Rope & Handle | |
| Bracket |
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Door | Door Arm |
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You may find it helpful to refer back to this page as you proceed with the installation of your opener.
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