3/8”-16 x 1-1/2”
Truss head bolts
and 3/8” - 16 nuts
Spring
Horizontal track
Rear support
bracket
Torsion shaft
equalized on
both sides
Stationary cone
Winding
cone
Torsion
keyed
shafts
Center
brackets
Keys
Torsion
spring
Torsion
spring
(3) 3/8” - 16 x 1-1/2”
hex head screws
(3) 3/8” - 16
Hex nuts
(3) 3/8”
Washers
(3) 3/8”
Washers
(3) 3/8” Lock
washers
Coupler halves
Set screws
Set screws
Four springs shown
Attaching Counterbalance Lift Cables
18
IMPORTANT:
RIGHT AND LEFT HAND IS ALWAYS DETERMINED FROM INSIDE THE GARAGE
LOOKING OUT.
Slide the black cable drum against the left hand rear support bracket. Thread the counterbal-
ance lift cable up and over the cable sheave. Position the cable drum and counterbalance lift
cable, as shown. Hook the cable into the drum.
NOTE:
For doors with a torsion keyed shaft, insert (1) key into the slot of both the black cable
drum and the slot in the torsion keyed shaft, as shown.
Tighten the set screws in the black cable drum to 14-15 ft-lbs of torque (once set screws
contact the torsion shaft, tighten screws an additional 1/2 turn for solid shaft and one full
turn for tubular shaft).
Torsion spring, Left wound,
black winding cone
(left hand side)
Horizontal track
Rear
support
bracket
Torsion warning tag
Counterbalance
lift cable taut
Tighten set screws
on cable drum
Torsion shaft
Black cable drum
(left hand side)
Horizontal track
Left hand end bearing bracket
Key
Torsion
keyed
shaft(s)
Torsion spring, Left wound,
black winding cone
(left hand side)
Tighten set screws on cable drum
Black cable drum
(left hand side)
Counterbalance lift cable taut
Torsion warning tag
Slide the red cable drum against the right hand rear support bracket. Rotate the left hand
drum and torsion shaft until counterbalance lift cable is taut. Now attach locking pliers to the
torsion shaft and brace locking pliers against the perforated angle of the rear back hangs
to keep counterbalance lift cable taut. On the right hand side, thread the counterbalance lift
cable up and over the red cable drum and position the cable drum and counterbalance lift
cable, as shown. Hook the cable into the drum.
NOTE:
For doors with a torsion keyed shaft, insert (1) key shaft into the slot of both the red
cable drum and the slot in the torsion keyed shaft, as shown.
Tighten the set screws in the red cable drum to 14-15 ft-lbs of torque (once set screws
contact the torsion shaft, tighten screws an additional 1/2 turn for solid shaft and one full
turn for tubular shaft).
Secure locking pliers
to adequate framing
member / ceiling
Torsion shaft
Center
bracket
Horizontal track
Rear
support
bracket
Torsion warning tag
Counterbalance
lift cable taut
Torsion shaft
Red cable drum
(right hand side)
Torsion spring, Right wound,
red winding cone
(right hand side)
Tighten set screws to
14-15 ft. lbs. of torque
11
