Torsion
keyed
shaft
Left wound, black winding
cone (left hand side)
Set collar
Center
bearing
Coupler
halve
Center bearing
brackets
Left hand end
bearing bracket
Equal
spacing
Right hand end
bearing bracket
Equal
spacing
Torsion
keyed
shaft
Set
collar
Equal spacing
Center
bracket
bushing
Center bracket
Torsion keyed shafts
Right hand end
bearing bracket
Left hand end
bearing bracket
Set collar
Set collar
Attaching Springs to Center Bracket
14
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 bearing into the spring.
Align the stationary spring cone(s) with the holes in the center bracket bearing assembly. Se-
cure the torsion spring(s) to the center bracket bearing assembly with (2) 3/8” - 16 x 1-1/2”
hex head bolts and (2) 3/8” - 16 nuts.
IMPORTANT:
NEVER USE MORE THAN ONE BEARING WHEN ATTACHING TWO SPRINGS TO
ONE CENTER BRACKET.
Center
bracket
bearing
Stationary
spring
cone
Center
bracket
Torsion
spring
Stationary
spring cone
Torsion
spring
3/8”-16 x 1-1/2”
Hex head bolts
3/8”-16
Hex nuts
Spring
warning
tag(s)
Center
bracket
Center
bracket
bearing
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.
(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
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
Attaching Counterbalance Lift Cables
15
NOTE:
Always assemble the left hand cable and cable drum first to help maintain equal cable
tension on both sides of the door.
Starting on the left hand slide the red cable drum onto the torsion shaft / torsion keyed
shaft(s). Hook the counterbalance lift cable into the left hand cable drum and thread the
counterbalance lift cable up and around the front side of the cable drum. Slide the left hand
cable drum up against the left hand end bearing bracket.
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.
Counterbalance lift cable should terminate at the 3 o’clock position. Tighten the set screws
in the drum to 14-15 ft. lbs. of torque (once set screws contact the shaft, tighten screws one
full turn).
Rotate the left hand drum and torsion shaft until counterbalance lift cable is taut. Attach lock-
ing pliers to the torsion shaft and brace locking pliers up against jamb to keep counterbal-
ance lift cable taut. Repeat for right hand side using the right hand side the black cable drum.
IMPORTANT:
VERIFY THAT THERE ARE NO OBSTRUCTIONS IN THE TRAVEL PATH OF THE
DOOR SECTIONS OR COUNTERBALANCE LIFT CABLES.
IMPORTANT:
INSPECT EACH COUNTERBALANCE LIFT CABLE MAKING SURE IT IS SEATED
PROPERLY ONTO THE CABLE DRUM AND THAT BOTH COUNTERBALANCE LIFT CABLES HAVE
EQUAL TENSION.
CHECK COUNTERBALANCE LIFT CABLES FOR EQUAL TENSION:
1. Attach locking pliers to track above top roller.
2. Grasp cable at approximate mid-door height location.
3. Draw cable toward you about 1/2” to 1” and release, noting the response of the cable.
4. Repeat above steps for other cable.
5. Adjust cable tension as needed until right and left cables both respond the same.
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.
Torsion
shaft
Left hand end
bearing bracket
Counterbalance
lift cable hooked
in cable drum
Red cable drum
(left hand side)
13
