To prevent damage to garage door, rest garage door opener
rail on 2x4 placed on top section of door.
INSTALLATION STEP 4
Position the Opener
SECTIONAL DOOR ONLY
A 2x4 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 2x4 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.
10
Trolley
Release Arm
ENGAGED
RELEASED
Clevis Pin 5/16"x2-3/4"
Ring Fastener
INSTALLATION STEP 3
Attach the Rail to the Header Bracket
•
Position the opener on the garage floor 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.
Header
Bracket
Chain
Pulley
Bracket
Temporary
Support
Header Wall
Garage
Door
Clevis Pin
5/16"x2-3/4"
Ring
Fastener
Header
Bracket
Chain
Pulley
Bracket
Rail
HARDWARE SHOWN
ACTUAL SIZE
Rail
Door
2x4 is used to determine
the correct mounting height
from ceiling.
