14
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
• Position the opener on the garage fl oor below the
header bracket. Use packing material as a protective
base. NOTE: If the door spring is in the way you’ll need
help. Have someone hold the opener securely on a
temporary support to allow the rail to clear the spring.
• Position the rail bracket against the header bracket.
• Align the bracket holes and join with a clevis pin
as shown.
• Insert a ring fastener to secure.
Garage
Door
Clevis Pin
5/16"x2-3/4"
Chain
Pulley
Bracket
Temporary
Support
Ring Fastener
Rail
Header Bracket
Chain Pulley
Bracket
Header
Wall
Header Bracket
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 2x4 laid fl at 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 2x4 laid fl at 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.
To prevent damage to garage door, rest garage door
opener rail on 2x4 placed on top section of door.
ONE-PIECE DOOR WITHOUT TRACK
• With the door fully open and parallel to the fl oor,
measure the distance from the fl oor 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.
RELEASED
Trolley
Release Arm
ENGAGED
Clevis Pin 5/16"x2-3/4"
HARDWARE SHOWN
ACTUAL SIZE
Ring Fastener
Top of Door
Header Bracket
2x4 is used to
determine the
correct mounting
height from ceiling.
Door
Rail
2x4 is used to
determine the
correct mounting
height from ceiling.
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