Page 7.
08.11.11
Torsion Spring Installation Instructions
Note:
Doors may be supplied with 1 or 2 Torsion Springs.
Directions for installation are the same.
Note: Doors may be supplied with extension springs. See
Supplemental Instructions, Page 5 for details.
Note: Doors may be supplied with a spring winding device. See
instructions provided by the manufacturer, in the box for details.
Step 1: End Bearing Plate Attachment (Left Side)
Note:
Use ladder where required.
Attach the left side End Bearing Plate to the Flag Bracket and
Horizontal Angle with (2) 3/8”x3/4” Low Shoulder Carriage Bolts
and (2) 3/8“-16 Hex Nuts (Figure 1A & B).
Note: 3/8”-16 Hex Nuts always go to the outside of the Flag
Bracket.
Secure the Tab on the End Bearing Plate, to the Jamb/Spring pad
with (1) 5/16“x1-5/8” Lag Bolt (Figure 2A). Predrill a 3/16“ pilot
hole to prevent splitting the wood.
Repeat Step 1 for the Right Side End Bearing Plate
Step 2: Torsion Spring Unit Installation:
Slide the left side (Red) drum onto the shaft. The Set Screws
should be facing toward the center of the shaft. Next, slide the left
side Torsion Spring (Red) onto the shaft, with the set screws facing
toward the outside, then slide the Nylon Bearing onto the shaft
(the Nylon Bearing should be turned so it is able to slide into the
spring, Figure 3A). If your door requires (2) springs, slide the
Right/Black spring on facing in the opposite direction of the
Left/Red spring. Slide on the right side (Right/Black) drum with the
set screws facing toward the middle.
Step 3: Installing the Torsion Spring Unit
Keeping the shaft level, slide the complete Spring Assembly into
the Left and then Right side End Bearing Plates (Figure 3). There
should be an equal amount of the shaft protruding from each End
Bearing Plate (Fig 3).
Step 4: Installing the Center Bearing Plate
The Center Bearing Plate must be mounted in the center of the
shaft, and level with the End Bearing Plates so the shaft is level.
Fasten the Center Bearing Plate to the Spring Anchor Pad with (2)
5/16”x1-5/8” RED Lag Bolts (Figure 3B). Pre-drill a 3/16” pilot hole
to prevent splitting the wood.
Step 5: Installing the Spring(s)
Do not remove the Warning Label from the Center Bearing Plate.
Slide the spring against the Center Bearing Plate, with the Nylon
Bearing inserted into the spring (Figure 3A). Using (2) 3/8”x1-1/2”
screws and (2) 3/8-16 RED Hex Nuts, fasten the spring(s) to the
Center Bearing Plate (Figure 3C). If two springs are required, the
screws go through both Springs and the Center Bearing Plate.
Tighten securely.
Step 6: Installing the Lift Cables
Bring the Left Side Lift Cable up between the door and the track,
behind the Torsion Shaft and over the Left Side Drum. Slide the
drum against the End Bearing Plate. Hook the Cable Stop into the
notch on the outside edge of the drum (Figure 4). Turn the drum
with your hand until the cable is snug. Using only your fingers,
tighten the (2) Set Screws on the drum finger tight. Then, turn
each screw 1/2 to 1 turn with a wrench.
Note: Do not over tighten the Set Screws, this could damage the
Torsion Shaft.
Using a pair of Lock Pliers, clamp the shaft from the outside of the
End Bearing Plate, so that the cable does not loosen or unwind
(Figure 3D). The back of the Lock Pliers should rest solidly against
the jamb/header. This will prevent the drum from unwinding or
rising up as you wind the spring.
Repeat Step 6 for the Right Side Cables and Drum.
Step 7
: Winding the Torsion Spring(s)
Mark a straight line on the Spring(s) with a piece of chalk (Figure
6, Step1). Insert the Winding Bars completely into the full depth of
the holes in the Winding Cone. Always wind pushing the Winding
Bars up (Figure 5 Step 2) 1/4 turn at a time. When the correct
number of turns are on the spring(s) (Table 3 & Figure 6 Step 3),
keeping tension with the Winding Bar, using only your fingers,
tighten the Set Screws on the spring(s) finger tight. Then, turn 1/2
to 1 turn with a wrench.
Note:
Do not over tighten the Set Screws, this could damage the
Torsion Shaft.
Very carefully remove the Winding Bars and the Lock Pliers.
Note:
There should be no tension on the Winding Bars.
Test your installation by working the door up and down. The door
should balance (not go up or down) at 2’, 3’ and 4’ off the floor.
Proceed to Step 34, Page 6 to finish with the installation.
A
A
B
1
D
Set Screws
Set Screws
Warning
Label
Left Side/Red Drum
Locking Pliers
Cable Stop
Lift Cable
Right Side/Black
Drum
Center Bearing Plate
Torsion Shaft
Single (Left/Red) Torsion Spring
2nd (Right/Black) Torsion Spring
If Required
End Bearing Plate
Flag Bracket
Horizontal Angle
C
B
Figure 1
Figure 5
Stand to the side when winding
Figure 2
Figure 3
Set Screws
Set Screws
Chalk Mark
Chalk Mark
Note: for reference, count
the diagonal chalk lines,
this is the number of turns
after winding.
Winding Bars
Push Winding Bar
Against Jamb
Winding Cone
Table 3 - Number of Turns
Required for Springs
Note:
For doors over 8’ tall, contact
ASSA ABLOY Entrance Systems
.
Turns
12 Radius
Turns
15 Radius
Turns
LHR
D
oor
Heig
h
t
6'-0"
6.9
6'-2"
7.0
6'-3"
7.2
6'-5"
6'-6"
7.4
6'-9"
7.5
6.7
6'-10"
7'-0"
7'-1"
7'-4"
7'-6"
7.6
7'-8"
7'-9"
7.7
8.0
8.1
8.2
8.3
8.5
8'-0"
7.2
7.2
7.3
7.4
7.7
7.8
7.1
7.9
8.0
8.2
8.4
8.5
8.6
8.8
7.5
6.4
6.5
6.6
6.9
7.1
6.3
7.2
7.3
7.5
7.6
7.8
7.9
8.1
6.7
D
oor
Heig
h
t
Figure 4
Figure 6
A
Nylon Bearing
Horizontal Assembly
Left Side Shown
2
3
High spring tension can cause serious injury or death.
Do not attempt to remove, repair, or adjust any springs,
any RED colored fasteners, or the hardware to which
the RED colored fasteners are attached. Removal,
adjustment, or repair must be made by a trained
garage door technician.
WARNING Do not attach Track or Spring
components directly to sheet rock
.
Always use #2 Yellow Pine or better for
Jamb and Spring Pad.
DANGER
Failure to use approved
winding bars could result
in injury or death.
DANGER
DANGER
