©2009 Overhead Door Corporation
Part Number 37027500123 02/26/2010 REV. 1
12
MOUNTING THE OPENER
1. Getting started.
• Position assembled rail on wall next to header
bracket
(Fig. 2-4).
– Place material on floor under power head
to protect from scratching. (A box, stool,
or similar device may be needed to clear a
torsion spring.)
NOTE: For header bracket pins locate Bag 2 from
Box 1.
2. Mounting the assembly.
• Attach rail to header bracket using clevis pin
and cotter pin.
• Support power head on step-ladder to prevent
interference with header mounted (torsion)
spring
(Fig. 2-5).
NOTE: Before final attachment to ceiling, insure
that assembly is in proper alignment (Fig. 2-4).
NOTE: For nuts, bolts, and lag screws locate Bag 3
from Box 1.
• On finished ceilings, locate ceiling joists or
trusses using a stud finder or similar device.
Attach angle iron (not provided) to joists or
trusses through finish material using (provided)
lag screws
(Fig. 2-6).
• On unfinished ceilings or open ceilings,
straps may attach directly to joists or trusses.
Depending on the garage construction, extra
framing material (not provided) which may be
required should be installed using appropriate
construction techniques
(Fig. 2-6).
NOTE: Refer to your local building codes for
appropriate construction techniques.
• Attach mounting straps to ceiling using lag
bolts
(Fig. 2-6).
• Set height of power head to following:
(Fig. 2-6)
.
a) Rail must clear door at door’s highest point
of travel.
b) Be level or power head slightly below level.
• Securely tighten power head mounting bolts
and nuts.
• Carefully raise and lower door manually. Ensure
door does not contact any section of power
head or rail.
• Check that rail clamp bolts and nuts are tight.
•
DO NOT PLUG OPENER IN YET!
FIG. 2-4 Position assembly and align
YES
/
SÍ
/ OUI
NO
NO
FIG. 2-5 Rail mounting to Header bracket
COTTER PIN
CLEVIS PIN
(Chain drive
shown)
HEADER BRACKET
VIEW
FROM
ABOVE
(not to scale)
FIG. 2-6 Mounting the power head
ANGLE IRON ON FINISHED CEILING
Extra framing NOT needed
UNFINISHED OR OPEN BEAM CEILING
Attach angle iron to beams
bolts & nuts
bolts & nuts
Extra framing NEEDED
Mounting Straps
(not provided)
Drywall
Angle Iron
(not provided)
