Position The Opener - Craftsman 139.53920D Owner's Manual

nNSTALLATHON STEP 4
Position the Opener
Follow instructions which apply to your door type as
glustrated
SECTIONAL DOOR OR ONE-PIECE DOOR WITH
TRACK
A 2x4 laid flat is convenient for setting an ideal
door-to-rail distance
. Remove foam packaging.
. Raise the opener onto a stepladder You will need
help at this point if the ladder is not tall enough,
- Open the door all the way and place a 2x4 laid flat
on the top section beneath the rail,
• If the top section or panel hits the trolley when you
raise the door, pult down on the trolley release arm
to disconnect inner and outer sections Slide the
outer trolley toward the motor unit, The trolley can
remain disconnected until Installation Step 12
is completed,,
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ENGAGED RELEASED
, iCAUTi0N i
To preventdamageto garagedoor, rest garagedoor t
opener rail on 2x4 placed on top section of door t
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lil from ceiling "
ON E-PIECE DOOR WITH OUT TRACK
A 2x4 on its side is convenient for setling an ideal
door-to-rail distance
, Remove foam packaging
• Raise the opener onto a stepladder., You will need
help at this point if the ladder is not tall enough,
, Open the door all the way and place a 2x4 on its
side on the top section of the door beneath the rail
• The top of the door should be levei with the top of
the motor unit,, Do not position tile opener more
than 4" (!0 cm) above this point.
Header fj
/ Brecket _i
Ei
Topof Door Ivl'__
_ 2x4 ts used to determine
.e,O.,
15