Preparing Your Garage Door - Craftsman CMXEOCG781 Owner's Manual

PREPARING YOUR GARAGE DOOR

Before you begin:
1. Disable locks and remove any ropes connected to the garage door.
2. Lift the door halfway up. Release the door. If balanced, it should stay in
place, supported entirely by its springs.
3. Raise and lower the door to check for binding or sticking. If your door
binds, sticks, or is out of balance, call a trained door systems technician.
4. Check the seal on the bottom of the door. 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.
5. 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 (1.2 m) to the left or right of the door center.
See page 14.
Sectional Door One-Piece Door
To prevent possible SERIOUS INJURY or DEATH:
ALWAYS call a trained door systems technician if garage door binds, sticks,
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or is out of balance. An unbalanced garage door may NOT reverse when
required.
NEVER try to loosen, move or adjust garage door, door springs, cables,
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pulleys, brackets or their hardware, ALL of which are under EXTREME
tension.
Disable ALL locks and remove ALL ropes connected to garage door BEFORE
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installation and operating garage door opener to avoid entanglement.
DO NOT install on a one-piece door if using devices or features providing
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unattended close. Unattended devices and features are to be used ONLY
with sectional doors.
To prevent damage to garage door and opener:
ALWAYS disable locks BEFORE installing and operating the opener.
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ONLY operate garage door opener at 120V, 60 Hz to avoid malfunction and
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damage.
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