Technical Support Archives - DDM Garage Doors Blog

Torsion Spring Replacement Instructions 2 Page

Wednesday, November 22nd, 2023 at 4:06 pm by Dan Musick

Here are the new torsion spring instructions for printing for personal use. Please remember these are copyrighted.

Enjoy!

Dan



Read the rest of this entry »

Garage Door Pulleys

Saturday, June 17th, 2023 at 11:11 am by Philip Kendall

Garage door pulleys are part of the counterbalance system for extension spring doors. Most doors have four pulleys, or two on each side. There are two stationary pulleys, and a pulley attached to one end of each extension spring. Garage door pulleys are not the same as cable drums, which perform a similar function on garage door torsion spring assemblies.…

Read the rest of this entry »

How to Select Bottom Retainers

Tuesday, May 9th, 2023 at 3:17 pm by Philip Kendall

Back in 2014, we released a series of videos about how to select bottom retainers. Bottom retainers hold the bottom seal inserts that keep dust, leaves and insects out of your garage. They come in a variety of shapes and sizes, depending on your needs and the shape of the garage door.…

Read the rest of this entry »

How to Install PVC Stop Molding on a Garage Door

Tuesday, May 9th, 2023 at 3:15 pm by Philip Kendall

Garage doors can get drafty, especially during the winter months. Even in warmer climates, insects and small animals can try to get in around or through a poorly sealed garage door. Installing garage door PVC stop molding, also known as garage door weatherstripping, will help keep cold and critters on the outside of your garage.…

Read the rest of this entry »

Twin Contact Bottom Seals

Tuesday, May 9th, 2023 at 2:35 pm by Philip Kendall

Garage door bottom seals act like a garage door gasket. They keep water, debris and small animals from coming in under the bottom of your garage door. Since there are a variety of different types of bottom seals and retainers, deciding which type to use can be difficult.…

Read the rest of this entry »

How to Rebuild a Serco Hold Down Unit

Wednesday, January 11th, 2023 at 4:42 pm by Philip Kendall

In this video, Dan explains how to take apart and then put back together a Serco dock leveler hold down unit.

Disassemble the Hold Down Unit

A Serco hold down unit in the dock leveler
Serco hold down unit in the dock leveler
Serco hold down unit that we used for demonstration purposes in the video.
Serco hold down unit used for demonstration purposes

To take apart and rebuild a Serco hold down unit, you will need 9/16″ and 3/4″ wrenches, as well as an adjustable wrench.…

Read the rest of this entry »

How to Replace Garage Door Sections

Wednesday, January 11th, 2023 at 4:37 pm by Philip Kendall

When a garage door has been damaged, often only one or two sections need replacing. In this video, Dan demonstrates how to replace a single section of a garage door.

Preparation

You will need come-alongs and at least three vise grips, as well as more common equipment like a ladder and power drill.…

Read the rest of this entry »

How to Install the Safe-T-Winder™

Wednesday, January 11th, 2023 at 4:31 pm by Philip Kendall

In this tutorial, Dan explains how to install the new DDM Safe-T-Winder™. The Safe-T-Winder™ is a new type of winder that winds standard torsion springs without the use of winding bars, by turning the end of the shaft. A power drill is all you need.…

Read the rest of this entry »

How to Install Extension Spring Safety Cables

Saturday, January 7th, 2023 at 7:27 pm by Philip Kendall

When extension springs break, they have a tendency to explode everywhere, making them very dangerous. Therefore, it is best to be proactive and install extension spring safety cables.

This is a relatively easy job to undertake, and usually only takes a few minutes.…

Read the rest of this entry »

How to Replace Garage Door Vertical Tracks

Saturday, January 7th, 2023 at 7:20 pm by Philip Kendall

Replacing damaged garage door tracks is important because the tracks hold the door in the opening and keep it from falling. Failure to replace the tracks can also cause premature wear to rollers, hinges, and cables.

In this video, we explain how to replace the vertical tracks on a garage door.…

Read the rest of this entry »

Since 1997 the Gold Standard for Online Garage Door Parts

CUSTOMER SUPPORT HELP WANTED

Huge inventory of torsion springs for same or next day shipping! Here you will find all you need in the most common sizes of 1 3/4," 2," 2 1/4," and 2 5/8" inside diameter springs. Larger 3 3/4" and 6" inside diameter commercial and industrial springs may require a day or two to ship. You'll also find TorqueMaster Springs, Extension Springs, Self-Storage door springs, steel rolling door springs and springs for one piece single panel doors.

Shelves packed with every part you need to fix your doors.

Please note. Shipping times and costs have changed. Normal transit times are currently not guaranteed, even on next day and second day shipments. Shipping prices on items over eight feet have more than tripled.