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INSTALLATION STEP 4
Position the Opener
Follow instructions which apply to your door type as
illustrated.
SECTIONAL DOOR OR ONE-PIECE DOOR WITH
TRACK
A 2 x 4 laid flat is convenient for setting an ideal
door-to-rail distance.
• 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 2 x 4 laid
flat on the top section beneath the rail.
• If the top section or panel hits the trolley when you
raise the door, pull 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.
ENGAGED
ONE-PIECE DOOR WITHOUT TRACK
• With the door fully open and parallel to the floor,
measure the distance from the floor to the top of
the door.
• Using a stepladder as a support, raise the top of
the opener to this height.
• The top of the door should be level with the top of
the motor unit. Do not position the opener more
than 2" (5 cm) above this point.
Trolley
Release Arm
RELEASED
WARNING
CAUTION
To prevent damage to garage door, rest garage door
opener rail on 2 x 4 placed on top section of door.
Trolley
Door
Header
Bracket
16
2x4
Top of Motor
Top of Door
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