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

Attaching Extension Springs

Tools: 3/8” Wrench

20

Position (1) 5/16”-18 x 3-3/4” eye bolt and (1) 5/16”-18 hex nut in the rear back hang, 6” to
8” above the horizontal track, as shown. Feed the snubber cable through the rear back hang
and tie the special knot around the “room side” of the 3 hole clip, as shown. Secure the eye
bolt and 3 hole clip to the rear back hang with (1) 5/16” - 18 hex nut. Hook one end of the
extension spring onto the eye bolt. Feed the snubber cable through the rear extension spring
loop and center of the extension spring then front spring loop, pull the snubber cable taut and
tie the special knot around the “jamb side” of the 3 hole clip. Attach the “jamb side” 3 hole
clip to the jamb near the flag angle with (1) 5/16” x 1-5/8” lag bolt.
NOTE: Snubber cables must be taut.
WARNINg WARNINg
FAILuRE TO INSTALL SNuBBER CABLES CAN RESuLT IN SEvERE OR FATAL INJuRy
IN CASE OF SPRINg BREAkAgE.
5/16” - 18
Hex nut
5/16” - 18 x 3-3/4”
Eye bolt
Horizontal Track
Rear back hang
6” - 8”
5/16” - 18
Hex nut
5/16” - 18 x 3-3/4”
Eye bolt
Snubber
cable
Special Knot
Special
Knot
3 Hole
Clip
Horizontal track
Rear back hang

Rear

extension

spring loop

Front extension

spring loop

Snubber

cable

Specail Knot-Back Specail Knot-Front

Rear back hangHorizontal track
Horizontal
track angle
Snubber
cable
Extension spring loop
Snubber
cable
5/16” x 1-5/8”Lag Bolt3 Holeclip 3 Hole clip
Horizontal track
Horizontal track
angle Rear back hangs

Attaching Spring Sheaves

Tools: 3/8” Wrench

21

Hook the sheave fork through the front loop of the extension spring and attach the sheave
fork to the rear cable lift sheave using (1) 3/8”-16 x 1-1/4” hex head bolt and (1) 3/8”-16
hex nut.
Thread the counterbalance lift cable over the front cable lift sheave and around the rear
cable lift sheave and tie the special knot around the “horizontal angle” using a 3 hole clip, as
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 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.
Rear
cable lift
sheave
3/8” - 16 x 1-1/4”
Hex Head Bolt
3/8” - 16
Hex Nut
Sheave
Fork
Counterbalance
lift cable
Horizontal
track
3 Hole Clip
Counterbalance
lift cable
Special knot Counterbalance
lift cable
Front cable
lift sheave
Horizontal
track angle
Horizontal
track angle
Horizontal
track
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