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Safety Symbol and Signal Word Review
This garage door opener has been designed and tested to offer safe service provided it is installed,
operated, maintained and tested in strictaccordance with the instructions and warnings contained in this
manual.
When you see these SafetySymbols and Signal Words on the following pages,they will alert you to the
possibilityof serious injury or death ifyou do not comply with the warnings that accompany them.The
hazard may come from something mechanical or from electric shock. Read the warnings carefully.
Mechanical
Electrical
When you see thisSignal Word on the following pages,itwill alert you to the possibilityof damage to
your garage door and/or the garage door opener if you do not comply with the cautionary statementsthat
accompany it.Read them carefully.
Check the Door
To prevent possible SERIOUSINJURYor DEATH:
• ALWAYS call a trained door systemstechnician if garage door binds,sticks,or is out of balance.
An unbalanced garage door may NOT reverse when required.
• NEVER try to loosen, move or adjustgarage door, door springs,cables, pulleys, bracketsor their
hardware, ALLof which are under EXTREMEtension.
• Disable ALLlocks and remove ALLropes connected to garage door BEFORE installation and
operating garage door opener to avoid entanglement.
To prevent damage to garage door and opener:
• ALWAYS disable locks BEFORE installing and operating the opener.
• ONLY operate garage door opener at 120 V,60 Hzto avoid malfunction and damage.
1. Disable locks and remove any ropes connected to the garage door.
2. Liftthe door halfway up. Release the door. Ifbalanced, it should stay in
place, supported entirely by its springs.
3. Raise and lower the door to check for binding or sticking. Ifyour door
binds,sticks, or is out ofbalance, 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 inch (6 mm).
Otherwise,the safety reversal system may not work properly.
5. The opener should be installed above the center of the door. Ifthere 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 leftor right of the
door center. See page 13.
Torsion
Spring
Extension
Spring
OR
Preparation
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