Plug end extension spring is a holmes spring replacement for heavier 1 piece tilt up canopy style garage doors.
Garage door side spring adjustment.
One end of the spring is connected to the garage door track or frame.
You can do this with a jigsaw or a circular saw sanding off the bottom and replacing it in the frame so it sits properly.
If it was opening too quickly move it to the next lower hole.
If you have a wooden garage door then you can trim the door down to make it fit properly.
Adjust the spring into the proper position and make sure your garage door closes all of the way.
Once the spring is free of tension remove from its track hanger.
They come under tension when the garage door is closed to make lifting the.
What can we say it can appear a bit complicated.
This will reduce the length of the spring when it is stretched.
Here s how to tell if your garage door torsion spring is a left wound spring or a right wound spring as seen from the back of the door.
Two p528 springs one on each side of the door can handle a 105 lbs.
Add more concrete to the floor.
By doing this you will lower the tension on the spring when the door is down.
To adjust your garage door s side mounted springs first open your door fully and secure it in place with a c clamp below the bottom roller.
Side mounted springs are long heavy springs mounted on each side of the upper garage door track.
They call it a right spring but when you are looking at the door from the inside it goes on the left side and vice versa.
The other is attached to a pulley connected to the cable.
If the door was closing too quickly move the spring to the next higher hole on the bracket.
Plug end extension spring is a p528 28 in.
Once your garage door is secured remove the spring hook from the track hanger which will allow you to move the hook and adjust the spring s tension.
Retest the door balance as you did in step 1.
To lower the tension on the spring you want to move the hook one hole away from the door frame toward the inside of the garage.
Do this with both sides before testing you should always adjust spring sets evenly.
Door with an initial tension of 165 lbs.
Through the use of pulleys they perform the same function as the torsion springs.
Otherwise simply slip the spring off of the garage door bracket opposite the hanger and move it to the next hole away from the hanger.
The springs extend along the shaft and work by twisting as the garage door closes by means of cables attached to each side of the lowest garage door panel.
Adjust the springs on both sides of the door the same way.
Detach the old spring from both ends and replace it with the new one and replace the pulleys as well if they are worn out.