We recommend weighing your garage door to confirm the torsion spring dimensions. This weight, along with the information regarding the door height, track radius, and drums, will help us determine the correct springs to balance your door.
Important: Do not use a digital scale. Regular analog bathroom scales adjust the reading as the weight changes, but most digital bathroom scales are designed to register weight in a narrow window of time. The better commercial scales for weighing packages do tend to be reliable as they will register changes in weight as they occur.
Caution! Working on garage doors is dangerous. This tutorial is to be used with our instructions for How to Replace Garage Door Springs. Pay special attention to the dangers and safety measures.
1. Remove the opener arm. Disengaging the trolley from the drawbar carriage is not enough. Often the outer carriage will catch on the inner carriage resulting in a false reading. Failure to disengage the opener will not only distort the weight you get, but it could also damage your door and opener.
2. Position an analog scale with a board on it in front of the center of the door.
If your door has two springs and both are broken, or if your door has only one spring and it is broken, reinstall the cables on the cable drums at this time.
Next, pull down on the cone of the broken spring with a winding bar or pull down on the shaft with a large pipe wrench. This will lift the door. Slide the scale under the door. Lower the door onto the scale. Take a reading.
If both springs were broken, or if your only spring was broken, shake the door to make sure it is free in the tracks and read the weight of the door.
If you have a heavier door that weighs more than 150 pounds with one spring still wound, you will need to use 2 scales and position them under the first row of hinges from each end of the garage door.
3. Next, if you have one spring that is still wound, push up 1/4 turn on the winding bar or pipe wrench to loosen the cables slightly and to place the full weight of the garage door on the scale. While pushing up on the bar, shake the door to make sure it's free in the tracks. Make sure the cables remain loose as you do this.
4. Read the scale while continuing to push up on the winding bar or pipe wrench. Both cables should be loose when reading the scale. If your scale has a small dial, you will need a second person to read the weight. After reading the weight, lower the winding bar or pipe wrench to allow the spring tension to transfer to the cable drums and cables. Reverse the previous steps to remove the scale from under the door.
YES, WE'RE OPEN FOR BUSINESS! DDM is considered a life-sustaining company because we are an internet retail company that provides essential products. Due to the recent outbreak of Coronavirus, however, we are changing our local order pickup policy at our West Chicago location. To pick up an order you will need to order first. The quickest way is to order in advance through our online shopping cart. There you can select the local pickup option. Or, you can call 630-293-1337 for assistance, to confirm availability of parts, and to place your order. Once ordered, your parts will be available for pickup in the lobby of our north side front entrance. Longer items will be picked up on the south side loading dock. Please honor the six foot social distancing rule. Thank you for your patience and understanding as we all navigate this challenge together. More information is available on our blog titled DDM Adjusts to the COVID-19 Coronavirus. In the same article you will also find documentation and an answer to the question: "Is a garage door repair company a life sustaining business?"
PLEASE NOTE: DUE TO COVID-19 SHIPPING TIMES ARE NOT GUARANTEED, EVEN ON NEXT DAY AND SECOND DAY SHIPMENTS. NORMAL TRANSIT TIMES DO NOT APPLY.