Wayne-Dalton 8700 installation instructions Cable Adjustments, Final Adjustments

shown.

Insert one end of the large “S” hook into the “horizontal angle” with the 3 hole clip and the other end into the second slot of the horizontal angle, as shown.

Repeat for the other side.

IMPORTANT: Close “S” hooks and eye bolts to prevent springs from coming loose.

WARNING

FAILURE TO CLOSE “S” HOOKS AND EYE BOLTS CAN RESULT IN SEVER OR FATAL INJURY IF SPRINGS COME LOOSE.

NOTE: Some larger doors feature 2 pairs of extension springs. A snubber cable must be installed through each spring.

Counterbalance		3/8” - 16 x 1-1/4”
lift cable
	Rear	Hex Head Bolt
	cable lift
	sheave
		Sheave
		Fork

3/8” - 16 Hex Nut

Horizontal

track

5/16” x 1-5/8”
Lag Bolt	Snubber		Snubber
			cable
	cable	Extension
		spring loop
	3 Hole
	clip	3 Hole clip
Horizontal track		Horizontal track
angle		Rear back hangs

23	Cable Adjustments
	Tools: None

Adjust counterbalance lift cables to create about 1” to 2” (25 mm to 50 mm) of initial exten- sion spring stretch, with the door in the fully opened position.

Measure relaxed extension spring length for your door height and verify with chart. Spring length must be the same for both extension springs to allow even door balance.

Carefully remove the locking pliers from the horizontal track and lower the door into the closed position.

Once the door is closed, measure the extension spring length in tension for both sides. Using the chart, verify the spring length in tension, is correct with your door height.

Note: It may be necessary to adjust spring length for proper door balance.

Counterbalance lift cable

Horizontal

track angle

Special knot

Horizontal

track

3 Hole Clip

Front cable lift sheave

Counterbalance lift cable

Horizontal

track angle

DOOR HEIGHT	Spring Length Relaxed	Spring Length Extended
	(Door Open)	(Door Closed)
6’0”	25”	61”
	(635 mm)	(1549 mm)
6’3”	25”	62.5”
	(635 mm)	(1588 mm)
6’6”	25”	64”
	(635 mm)	(1626 mm)
7’0”	25”	67”
	(635 mm)	(1702 mm)
7’6”	27”	72”
	(686 mm)	(1829 mm)
7’9”	27”	73.5”
	(686 mm)	(1867 mm)
8’0”	27”	75”

Front cable lift sheave

Second slot

“S” Hook

3 Hole clip

Horizontaltrack

Counterbalance lift cable

Horizontal

track angle

Counterbalance lift cable

(686 mm) (1905 mm)­

24	Final Adjustments
	Tools: None

Now lift the door and check its balance. If the door is hard to pull down or lifts by itself, adjust extension spring length by moving the “S” hook backward (towards the rear back hangs) to a different hole in the horizontal angle.

If the door is difficult to lift or too easy to pull down, adjust extension spring length by moving the “S” hook forward (towards the header) to a different hole in the horizontal angle.

Important: Whenever adjusting extension spring length for door balance, always open the door to the fully open position and return the locking pli- ers to the horizontal tracks below the bottom track rollers.

If the door still does not operate easily, lower the door into the closed position and recheck the following items:

1.) Check the door for level.

2.) Check the distance between flag angles – must be door width plus 3-3/8” + 1/4” – 0”.

3.) Check the counterbalance lift cables for equal tension- adjust by re-tieing the special knot.

13

Please Do Not Return This Product To The Store. Contact your local Wayne-Dalton dealer. To find your local Wayne-Dalton dealer,

refer to your local yellow pages business listings or go to the Find a Dealer section online at www.Wayne-Dalton.com