Wayne-Dalton 8300/8500 Torsion Spring Attachment, Counterbalance Lift Cables

	Equal spacing
Left hand end	Center	Right hand end
bearing bracket	bracket	bearing bracket
	bushing
Torsion keyed shafts	Center bracket

21	Torsion Spring Attachment
	Tools Required: Step Ladder, Ratchet Wrench, 9/16” Socket, 9/16” Wrench

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.

		Stationary
		spring cone
Typical center bracket		Torsion spring
Stationary
spring cone
Torsion	Typical center
spring
	bracket bushing	Spring
		warning tags

(3) 3/8” - 16 x 1-3/4”		Torsion
hex head screws and		spring
(3) 3/8” - 16 Hex nuts
Stationary		Center
		bracket
spring cone	Coupler
Center bracket	assembly
	Coupler halves
Torsion
	(2) 3/8”-16 x 1-1/2”
spring
	Hex head bolts and (2)
	3/8”-16 Hex nuts

22	Counterbalance Lift Cables
	Tools Required: Step Ladder, Locking Pliers, 3/8” Wrench

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 end	Typicall left hand	Torsion shaft /
bearing bracket	cable drum	Torsion keyed shaft
	Counterbalance
	lift cable
		Counterbalance lift cable hooked in cable
		drum

(2) 3/8”-16 Nuts

Torsion spring

Typical center bracket assembly

Torsion spring

Jamb

Locking pliers

Typicall left hand end bearing bracket

Key

Counterbalance lift cable

Typicall left hand cable drum

	(2) 3/8”-16 x 1-1/2”
Stationary spring cone	Hex head bolts

Set screws

Torsion shaft /

Torsion keyed shaft(s)

17