The single torsion spring on your
garage door helps you to
open and close the door easily. Replacing this spring is not difficult, but you
must be careful when making the change since the spring is under extreme
pressure. The project will take the average do-it-yourselfer about two hours to
finish. You can complete this project by yourself if you wish, but it is always
better to have a second person on hand to help you. Be sure that you have the
proper replacement parts before you begin since the parts may vary from one
brand to another.
Things You'll Need
Ladder
2 winding bars
Adjustable wrench
Show (7) More
Instructions
1.
Close the garage door if it is open. Place a ladder under
the garage door opener if one is present. Climb up the ladder and unplug the
power cord from the electrical outlet.
2.
Move the ladder over to the opener bracket and pull the pin
to disconnect it from the garage door. Attach a pair of vise grips to the track
of the door about 3 inches from the door roller to keep it from flying up as
you work on it.
3
Move the ladder over to the side of the garage door where
the spring is that you are going to remove. Measure the old spring with the
tape measure and compare the length to the new spring to be sure you have the
proper size. Using a different sized spring on the door is dangerous. Insert a
winding rod into the hole on the winding cone at the bottom of the spring.
4
Loosen the bolt on the winding cone using an adjustable
wrench and allow the winding bar to turn slowly if there is still tension on
the spring. Do not stand directly in front of the winding cone. Stand off to
the side in case the bar slips.
5
Check the spring bracket lag screws once you remove the
tension from the spring. Tighten them if necessary using a socket and ratchet.
Remove the bolts securing the spring to the center stationary cone using a
socket and ratchet. You will find these bolts at the other end of the spring at
the bracket.
6
Separate the broken spring from the bracket and slide the
parts toward the cable drum. Mark the cable drum and the shaft using the
marking pen. This will help you to line the drum and the shaft up properly when
you install the new spring.
7
Loosen the retaining bolts on the cable drum using an
adjustable wrench. Slide the drum away from the bearing plate. Examine the
shaft thoroughly. File any ridges you see away with the file.
8
Check the other cable drum as well, loosening the retaining
bolts with an adjustable wrench. Repeat the filing process if necessary. Place
a coat of oil on the bearings. Slide the stationery cone onto the shaft.
Install the new spring on the shaft behind the stationery cone. Slide the new
winding cone onto the shaft behind the spring. Slide the cable drum onto the
shaft and then insert the shaft into the bearing.
9
Move the cones and spring on the shaft toward the center of
the garage door. Line the cable drum up with the marks you made on the shaft
earlier. Tighten the retaining bolts hand-tight and then rotate the drum as
necessary to find the slots.
10
Tighten the retaining bolts using an adjustable wrench in
half-turn increments alternating between each one. Slide the shaft toward the
bearing plate until the drum is flush with the track.
11
Insert the cable into the slot on the cable drum and then wind
it tightly around it. Attach a pair of vise grips on the shaft to assist you in
holding the cable tight on the other drum. Press the winding cone against the
torsion spring.
12
Turn the winding cone two turns by hand to begin the winding
process. Insert the winding bar into the slot on the winding cone and wind the
spring two more turns, using the second winding bar to tighten the spring as
you run out of room.
13
Grasp the torsion spring with a pipe wrench once you reach
the point that you are unable to tighten the winding cone any further. Push on
the winding bar while pulling with the pipe wrench until the spring is
completely on the winding cone. Tighten the retaining bolts on the winding cone
using an adjustable wrench once the spring is tight and fully on the winding
cone.
14
Pull down on the winding bar until the garage door raises 3
inches. The rollers will hit the vise grip on the track and at that point let
the bar go and the door should go back down by itself. If it does not, then the
spring is too tight and you will need to let off some of the tension by holding
the winding cone in place as you loosen the retaining bolts.
15
Back off the spring one turn and then tighten the retaining
bolt back up. If the door does go back down, then the spring is correct.
16
Remove the vise grips from the shaft and the track. The door
should be all the way down when closed. Raise the door halfway up and it should
stay there. Raise the door all the way and it should stay open on its own and
you will know the door balance is correct.
Tips & Warnings
Wear leather gloves if possible to prevent cuts on your
hands. When the project is complete and the door is closed, it should be even
on the floor all the way across.
The torsion springs on a garage door are under extreme
pressure and you must exercise caution when completing this project.