HIGH SPRING TENSION CAN CAUSE
SERIOUS INJURY OR DEATH.
DO NOT
adjust, repair or remove springs or parts to
which springs are connected, such as steel brack-
ets, cables, wood blocks, fasteners or other parts of
the counterbalance system.
Adjustments or repairs must
ONLY
be made by a
trained door systems technician using proper tools
and instructions.
DO NOT
remove, cover or paint over this tag. Prod-
uct user should inspect this tag periodically for
legibility and should order a replacement tag from
the door manufacturer, as needed.
©Copyright 2010 Overhead Door Corporation
102081 REV2 06/24/2010
HIGH SPRING TENSION CAN CAUSE
SERIOUS INJURY OR DEATH.
DO NOT
adjust, repair or remove springs or parts to
which springs are connected, such as steel brack-
ets, cables, wood blocks, fasteners or other parts of
the counterbalance system.
Adjustments or repairs must
ONLY
be made by a
trained door systems technician using proper tools
and instructions.
DO NOT
remove, cover or paint over this tag. Prod-
uct user should inspect this tag periodically for
legibility and should order a replacement tag from
the door manufacturer, as needed.
©Copyright 2010 Overhead Door Corporation
102081 REV2 06/24/2010
Torsion shaft
Winding
cone
Torsion
spring(s)
Approved
winding
rod
Set screws
IMPORTANT:
CHECK THE WARNING
TAG(S) ATTACHED TO THE SPRING(S)
FOR THE REQUIRED NUMBER OF
COMPLETE TURNS, TO BALANCE
YOUR DOOR.
Warning
tag(s)
Approved winding rod
Torsion spring(s) should be wound in the direction the end coil points.
Spring
coils
D8a
D8b
Attaching Rear Back Hangs
20
IMPORTANT:
HOLD THE DOOR DOWN TO PREVENT IT FROM RISING UNEXPECTEDLY IN THE
EVENT THE SPRING(S) WERE OVER-WOUND AND CAUTIOUSLY REMOVE LOCKING PLIERS
FROM VERTICAL TRACKS.
Raise the door until the top section and half of the next section are in the horizontal track
radius. Do not raise door any further since rear of horizontal tracks are not yet supported.
WARNING
RAISING DOOR INTO THE LOOSE HORIZONTAL TRACKS CAN RESULT IN
DOOR FALLING AND CAUSE SEVERE OR FATAL INJURY.
Clamp a pair of locking pliers onto the vertical tracks just above the second track roller on
one side, and just below the second track roller on the other side. This will prevent the door
from raising or lowering while installing the rear back hangs.
Using the chart below, select the appropriate perforated angle (may not be supplied). Fabri-
cate and install rear back hangs, as shown.
Perforated Angle Gauge Weight Limitations:
Perforated Angle Gauge
Door Balance Weight
2” x 2” x 12 Gauge
Less Than 800 lbs.
1-1/4” x 1-1/4” x 13 Gauge
Less Than 305 lbs.
1-1/4” x 1-1/4” x 15 Gauge
Less Than 220 lbs.
1-1/4” x 1-1/4” x 16 Gauge
Less Than 175 lbs.
NOTE:
If an opener is installed, position horizontal tracks one hole above level when securing
them to the rear back hangs.
WARNING
KEEP HORIZONTAL TRACKS PARALLEL AND WITHIN 3/4” TO 7/8” FROM
DOOR EDGE, OTHERWISE DOOR COULD FALL, RESULTING IN SEVERE OR
FATAL INJURY.
IMPORTANT:
DO NOT SUPPORT THE WEIGHT OF THE DOOR ON ANY PART OF THE REAR
BACK HANGS THAT CANTILEVERS 4” OR MORE BEYOND A SOUND FRAMING MEMBER.
NOTE:
If rear back hangs are to be installed over drywall, use (2) 5/16” x 2” hex head lag
screws and make sure lag screws engage into solid structural lumber.
WARNING
FAILURE TO ASSEMBLE AND ATTACH REAR BACK HANGS PROPERLY
ACCORDING TO THE ABOVE INSTRUCTIONS MAY RESULT IN DOOR
FALLING WHEN RAISED, CAUSING SEVERE OR FATAL INJURY.
NOTE:
Perforated angle must be attached to sound framing members and
nails should not
be used
.
90°
(3) 5/16”
Bolts and nuts
(3) 5/16” Bolts and
(3) 5/16” nuts
Perforated
angle
5/16” Hex nuts
5/16”-18 x 1-1/4”
Hex bolts
Perforated angle bolted
using (2) 5/16” x 1-5/8”
hex head lag screws to
ceiling member and
parallel to door
Horizontal track
NOTE:
Repeat the same
process for right hand side.
Horizontal tracks
Door edges
3/4” To 7/8”
3/4” To 7/8”
Attaching Weather Seal
21
Permanently attach the weatherstrips on both door jambs and header. The weatherstrips
were temporarily attached in Preparing the Opening, in the pre-installation section of this
manual.
NOTE:
When permanently attaching the weatherstrips to the jambs, avoid pushing the weath-
erstrips too tightly against the face of door.
15
