this video is a supplement to the
residential garage door installation
video
it covers installation of extension
springs use this video if you are
installing an extension spring with your
garage door
working with any springs can be
dangerous
make sure you follow all safety warnings
in the manual and on this video and read
the safety information completely before
proceeding with the installation of
Springs
do not attempt to install them yourself
unless you have the right tools
reasonable mechanical aptitude or
experience carefully follow these
instructions to avoid personal injury or
property damage
use the instructions in this video for
installing extension springs
only if you're missing any spring
hardware call the toll-free consumer
services number found on the front cover
of the manual take a moment to lay out
the tools and materials that you will
need in this video we will be installing
springs for a single door see your
manual or supplemental manual for the
hardware needs of the door that you will
be installing for a single door your
hardware should include two extension
springs four sheaves two sheave forks for
sheave bolts two five sixteenths inch
eye bolts one safety spring containment
kit 2 3 hole adjustment kits two s hooks
two black bushings four five sixteenths
inch flange nuts and four three eighths
inch flange nuts
now that you have everything in one
convenient place
we are ready to get started the first
thing to do is to assemble the springs
with sheaves using a three-eighths inch
by one and one-quarter inch bolt to
attach the sheave
next we will attach
a sheave in the third hole on the angle
approximately four inches from the wall
on both sides using a three-eighths inch
by one and one-quarter inch bolt and a
three-eighths inch washer and nut
make sure you place the head of the bolt
on the door side then attach the eye
bolts with one 5/16 inch nut on each side
of the rear hanger about 12 inches above
the track to keep the spring assembly
from dragging on the track and then
tighten the eyebolt nuts if your head
room area is small the eye bolts can be
as low as 4 inches above the track now
carefully raise the door and prop it
open about half way since this is the
first time the new doors being opened
proceed slowly and carefully if the
tracks are not correctly aligned or the
back hangers are not strong enough for
the door the door may fall
also the door will be very heavy without
the help of the springs
so make sure you have two or more people
to help you again working slowly and
carefully while you lift the door check
that the horizontal tracks are parallel
with each side of the door with the door
open about halfway
make sure the rollers do not come out of
the top brackets more than about one
half inch if adjustment of the rear
hangers is necessary
lower the door first to remove the
weight from the rear hangers
next carefully raise the door so that
it's fully open and place
C clamps on both sides of the track
below the bottom rollers to keep the
door from moving
check again to be sure that the
horizontal tracks are parallel with the
edges of the door and that the rollers
do not come out of the hinges or
brackets hook the ends of the springs
over the eye bolts at the rear track
hangers
if not already done attach the loop of a
cable over the button on the bottom
bracket
thread the cable up over the stationary
sheave and continue the cable over and
around the sheave on the springs
then tie the cable
to the three hole adjusting clip
exactly as you see here
hook the cable to the horizontal angle
with an s hook
and adjust the knot at the three hole
adjusting clip so that all spring
tension is relieved and the cable holds
the springs above the horizontal track
the spring should be stretched the same
on both sides of the door
make sure you attach the warning tag
found in the white envelope to the
spring assembly if it's not already
attached
next we will install the safety
containment kit
remember garage door extension springs
can cause serious injury and property
damage if they break under tension and
are not secured with safety cables so
make sure to tie one end of the 1/8 inch
containment cable to the rear track
hangers tie the cable as shown here
thread the cable through the center of
the extension spring and through the
bushing in the she fork
and tie the remaining end to the horizontal
angle as shown
make sure you do this for each
of the springs now we are ready to adjust
extension spring tension
make sure to use extreme care when
readjusting extension springs and make
sure that the door is carefully secured
by C clamps in the open position before
you begin
note that when the door is closed the
springs and mounting hardware are under
extreme tension and are potentially
dangerous adjust the tension by moving
the S hooks to different holes in the
horizontal track angles or by adjusting
the cable in the three whole clip both
sides must be adjusted equally moving
the hooks closer to the door opening
increases tension tension can also be
adjusted slightly by releasing spring
tension and relocating the eye bolts
higher on the track hanger when
reinstalling the higher the eye bolt the
greater the tension make your
adjustments so that the weight of the
door is about the same going up or going
down
congratulations this completes the
installation procedure for standard
extension springs
