Wayne-Dalton 8300, Installation Instructions And Owner'S Manual

CONE), WHICH GOES ON THE RIGHT HAND SIDE.

IMPORTANT: 

ON SINGLE SPRING APPLICATIONS, ONLY A LEFT WOUND (BLACK WINDING 

CONE), IS REQUIRED.

NOTE:

 The set screws used on all winding cones and cable drums are colored red. DO NOT 

identify right and left hand by the set screw color.

IF YOU DON’T HAVE A COUPLER ASSEMBLY:

 Facing the inside of the door, lay the torsion 

shaft / torsion keyed shaft on the floor. Lay the torsion spring with the black winding cone 

and the black cable drum at the right end of the torsion shaft / torsion keyed shaft. Lay the 

torsion spring with the red winding cone and the red cable drum at the left end of the torsion 

shaft / torsion keyed shaft. Slide the spring anchor bearing onto the torsion shaft / torsion 

keyed shaft followed by the torsion springs and cable drums.

IMPORTANT: 

THE SPRING ANCHOR BEARING, TORSION SPRINGS, AND CABLE DRUMS 

MUST BE POSITIONED, AS SHOWN.

Torsion shaft / 

Torsion keyed shaft

Right wound, red 

winding cone 

(left hand side)

Left wound, black 

winding cone 

(right hand side)

Right hand 

cable drum, 

black

Left hand cable 

drum, red

IMPORTANT:

 ON SINGLE 

SPRING APPLICATIONS, 

ONLY A LEFT WOUND 

(BLACK WINDING CONE), 

IS REQUIRED.

NOTE:

 Layout 

counterbalance parts in 

proper orientation, then 

install onto torsion 

shaft, as shown.

Spring anchor bushing

With assistance, pick up the torsion spring assembly and slide one end of the torsion shaft 

/ torsion keyed shaft through one head plate. Lay the middle of the torsion shaft / torsion 

keyed shaft into the spring anchor bracket. Slide the other end of the torsion shaft / torsion 

keyed shaft into the other head plate.

Left hand 

head plate

Right hand 

head plate

Spring anchor 

bracket

Torsion shaft / 

Torsion keyed shaft

NOTE:

 Position the torsion shaft so that equal amounts of the shaft extend from each head 

plates.

Spring anchor bushing

IF YOU HAVE A COUPLER ASSEMBLY:

 Disassemble the coupler assembly by removing 

the (3) 3/8” - 16 x 1-1/2” hex head screws, (6) 3/8” washers, (3) 3/8” lock washers and the 

(3) 3/8” - 16 hex nuts from the coupler halves. Loosen the set screws. Set the components 

aside.

Coupler assembly

(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

Facing the inside of the door, lay the (2) torsion keyed shafts on the floor. One torsion keyed 

shaft on the left hand side and the other torsion keyed shaft on the right hand side. Starting 

on the left hand side, lay one of the coupler halves, the spring anchor bearing, torsion spring 

with the red winding cone and the red cable drum at the left end of the torsion keyed shaft. 

Next on the right hand side, lay the other coupler half, spring anchor bearing, the torsion 

spring with the black winding cone, and the black cable drum at the right end of the torsion 

keyed shaft. Slide the coupler halves, spring anchor bearings onto the torsion keyed shafts 

followed by the torsion springs and the cable drums, as shown.

IMPORTANT: 

THE COUPLER HALVES, SPRING ANCHOR BEARINGS, TORSION SPRINGS, 

CABLE DRUMS MUST BE POSITIONED, AS SHOWN.

Slide the flat edge of the couple half flush with the side edge of the torsion keyed shaft. Insert 

(1) key into the slot of both the coupler half and the slot in the torsion keyed shaft. Tighten 

the (2) set screws and the locking nut to secure the coupler half to the torsion keyed shaft, 

as shown.

NOTE:

 Tighten the set screws to 14-15 ft. lbs. of torque (once set screws contact the shaft, 

tighten set screws one full turn). Repeat the same process for the other coupler half.

NOTE:

 Layout 

counterbalance parts in 

proper orientation, then 

install onto torsion 

shaft, as shown.

Torsion 

keyed 

shaft

Coupler 

halves

Coupler halves 

assembled

Set screws 

and Lock nut

Key

Key

Torsion keyed shaft

Right wound, red 

winding cone 

(left hand side)

 Left wound, black 

winding cone 

(right hand side)

Left hand cable 

drum, red

Right hand cable 

drum, black

Spring anchor bushing

Spring anchor bushing

Torsion keyed shaft

Red cable drum 

(left hand side)

Black cable drum 

(right hand side)

Coupler 

halves

Coupler halves 

assembled

Set screws 

and Lock nut

Key

Key

Torsion keyed shaft

Right wound, red 

winding cone 

(left hand side)

Left wound, black 

winding cone 

(right hand side)

NOTE:

 Layout 

counterbalance parts in 

proper orientation, then 

install onto torsion 

shaft, as shown.

Spring anchor bushing

Spring anchor bushing

With assistance and starting on the left hand side of door, pick up the left hand torsion spring 

assembly and slide one end of the torsion keyed shaft through the head plate. Lay the other 

side of the torsion keyed shaft into the spring anchor bearing. Repeat the same process for 

the right hand torsion spring assembly.

Torsion 

keyed 

shaft

Coupler 

half

Spring anchor

brackets

Left hand head 

plate

Right hand 

head plate

Torsion 

keyed 

shaft

Right wound, red 

winding cone (left 

hand side)

Spring anchor bushing

Spring 

anchor 

brackets

Torsion keyed shafts

Right 

hand 

head plate

Left hand 

head 

plate

NOTE:

 Position both torsion keyed shafts so that equal amounts of the shafts extend from 

each end head plates.

Spring anchor bushing

16