Chamberlain 1245R garage door opener

User Manual - Page 3

For 1245R.

PDF File Manual, 40 pages, Download pdf file

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Preparing your garage door
Before you begin:
Disable locks.
Remove any ropes connected to garage door.
Complete the following test to make sure your
garage door is balanced and is not sticking or
binding:
1. Lift the door about halfway as shown. Release
the door. If balanced, it should stay in place,
supported entirely by its springs.
2. Raise and lower the door to see if there is any
binding or sticking.
If your door binds, sticks, or is out of balance, call a
trained door systems technician.
Toprevent possible SERIOUSINJURYORDEATH:
ALWAYScall a trained door systems technician if
garagedoor binds, sticks, or is out of balance.An
unbalancedgaragedoor may not reversewhen
required.
NEVERtry to loosen, move or adjust garagedoor, door
springs, cables,pulleys, brackets or their hardware,all
of which are under EXTREMEtension.
DisableALL locks and removeALL ropes connectedto
garagedoor BEFOREinstalling and operating garage
door opener to avoidentanglement.
Toprevent damageto garagedoor and opener:
ALWAYSdisable locks BEFOREinstalling and operating
the opener.
ONLYoperategaragedoor opener at 120V,60 Hzto
avoid malfunction and damage.
Sectional Door
One-Piece Door
Tools needed
During assembly, installation and adjustment of the
opener, instructions will call for hand tools as
illustrated below.
Stepladder
Level (Optional)
Tape Measure
Pencil
Wire Cutters
Drill 3/16", 5/16" and _,,_
5/32" Drill Bits
iers
ts Screwdriver
Hack Saw
Claw Hammer
Adjustable End Wrench
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