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Equal spacing
Center
bracket
bushing
Center bracket
Torsion keyed shafts
Right hand end
bearing bracket
Left hand end
bearing bracket
Torsion Spring Attachment
Tools Required: Step Ladder, Ratchet Wrench, 9/16” Socket, 9/16” Wrench
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NOTE: Refer to Package Contents / Parts Breakdown, to determine which Center Bracket(s)
came with your door.
NOTE: Refer to Package Contents / Parts Breakdown, to determine if your door came with a
coupler assembly.
IMPORTANT: THE SPRING WARNING TAG(S) SUPPLIED MUST BE SECURELY ATTACHED
TO THE STATIONARY SPRING CONE(S) IN PLAIN VIEW. SHOULD A REPLACEMENT SPRING
WARNING TAG BE REQUIRED, CONTACT WAYNE-DALTON FOR FREE REPLACEMENTS.
NOTE: Measure the diameter of your springs. If your spring diameter is 3-3/4”, the springs
do not share center brackets. If your spring diameter is either 2” or 2-5/8”, then two springs
will share the same center bracket, unless a coupler assembly is provided.
IF YOU DON’T HAVE A COUPLER ASSEMBLY:
Slide center bracket bushing into the spring. Align the stationary spring cone(s) with the holes
in the center bracket bushing assembly. Secure the torsion spring(s) to the center bracket
bushing assembly with (2) 3/8” - 16 x 1-1/2” hex head bolts and (2) 3/8” - 16 nuts.
IF YOU HAVE A COUPLER ASSEMBLY:
Slide center bracket bushing into the spring. Align the stationary spring cone with the holes in
the center bracket. Secure the torsion spring to the center bracket with (2) 3/8”-16 x 1-1/2”
hex head bolts and (2) 3/8” - 16 nuts. Repeat the same process for the other center bearing
bracket.
At the middle of the two center bearing brackets, re-assemble the coupler assembly by
loosely fastening the coupler halves together using the (3) 3/8” - 16 x 1-3/4” hex head
screws and the (3) 3/8” - 16 nylon hex lock nuts, as shown.
NOTE: Ensure both torsion keyed shafts have equal amounts of the shafts extending from
each end bearing bracket.
Typical center
bracket bushing
Stationary
spring cone
Typical center bracket
Torsion
spring
Stationary
spring cone
Torsion spring
Spring
warning tags
Typical center bracket
assembly
Stationary spring cone
(2) 3/8”-16 x 1-1/2”
Hex head bolts
(2) 3/8”-16 Nuts
Torsion
spring
Torsion
spring
Coupler halves
Coupler
assembly
(3) 3/8” - 16 x 1-3/4”
hex head screws and
(3) 3/8” - 16 Hex nuts
Stationary
spring cone
Torsion
spring
(2) 3/8”-16 x 1-1/2”
Hex head bolts and (2)
3/8”-16 Hex nuts
Torsion
spring
Center bracket
Center
bracket
Counterbalance Lift Cables
Tools Required: Step Ladder, Locking Pliers, 3/8” Wrench
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Starting on the left hand side, thread the counterbalance lift cable up and around the front
side of the left hand cable drum.
IMPORTANT: VERIFY THAT THERE ARE NO COUNTERBALANCE LIFT CABLE OBSTRUCTIONS.
NOTE: Always assemble the left hand cable and cable drum first to help maintain equal cable
tension on both sides of the door.
Hook the counterbalance lift cable into the left hand cable drum. Slide the left hand cable
drum up against the left hand end bearing bracket. Counterbalance lift cable should
terminate at the 3 o’clock position. Tighten the (2) set screws in the drum to 14-15 ft. lbs. of
torque (once set screws contact the shaft, tighten screws one full turn).
NOTE: If you have torsion keyed shaft(s), insert (1) key into the slot of both the cable drum
and the slot in the torsion keyed shaft, as shown.
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 up against jamb to keep counter-
balance lift cable taut. Repeat for right hand side.
IMPORTANT: INSPECT EACH COUNTERBALANCE LIFT CABLE MAKING SURE THEY ARE
SEATED PROPERLY ONTO THE CABLE DRUMS AND THAT BOTH COUNTERBALANCE LIFT
CABLES HAVE EQUAL TENSION.
Once the counterbalance cables are set and if applicable tighten the coupler assembly
together by tightening the (3) 3/8” - 16 nylon hex lock nuts to secure the coupler halves
together.
Typicall left hand
cable drum
Counterbalance lift cable hooked in cable
drum
Counterbalance
lift cable
Torsion shaft /
Torsion keyed shaft
Typicall left hand end
bearing bracket
Counterbalance lift cable
Locking pliers
Set screws
Jamb
Key
Typicall left hand
cable drum
Torsion shaft /
Torsion keyed shaft(s)
Typicall left
hand end
bearing bracket
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