Craftsman 139.53660SRT1 Garage Door Opener User Manual


 
You'll Need Tools
Duringassembly,installationand adjustment of the opener, instructionswillcallfor hand toolsshownbelow.
Stepladder
Level
Pencil
Tape Measure
oDoolooo O L_
Hack Saw
Wire Cutters
Dnl_ 3/16", 5/16" and
5/32" Dn_l Bits Pliers
Claw Hammer
Adjustable End Wrench
WARNING
An unbalanced garage door might not reverse
when required and someone under the door
could be seriously injured or killed.
If your garage door binds, sticks or is out of
balance, call for professional garage door
service. Garage doora, door springs, cables,
pulleys, brackets and their hardware are under
extreme tension and can cause serious injury
or death. Do not fry to loosen, move or adjust
them yourselfl
Ropes left on a garage door could cause
someone to become entangled and killed.
Remove all ropes connected to the door before
installing and operating the opener,
Identify the type and height of your door and any
special conditions that existand any additional
materials that may be required by referring to the
lists on page 4 or page 5.
CAUTION
To avoid damage to the garage door and
opener, disable locks before installing and
operating the opener. Use a wood screw or nail
to hold locks in the "open" (unlocked) position.
Operation at other than 120V 60 Hz will cause
opener malfunction and damage.
Before you begin, complete the following test to
make sure your door Is balanced, and Is not
sticking or binding:
Uft the door abouthalfwayas shown. Release the
door. It should stay in place, supported entirely by
its springs.
Raise and lower the door to see if there is any
binding or sticking.
ONE-PIECE DOOR
3