DIY instructions 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



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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.…

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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.…

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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.…

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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.…

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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.…

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How to wind Spring King and Simple Set Spring Systems

Saturday, January 7th, 2023 at 7:06 pm by Philip Kendall

In this video, we explain how to wind Spring King spring systems, also known as Simple Set spring systems. These winders are no longer in stock, since they have been discontinued by the manufacturer. For alternatives, see our post on torsion spring winding systems.…

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How to Set the Clutch on a Commercial Jackshaft Operator

Saturday, January 7th, 2023 at 6:54 pm by Philip Kendall

If you are a garage door contractor who needs to set the clutch on a long row of doors with jackshaft operators, it is important to have a consistent method of adjusting them. This will avoid the extra time required to test, set, and retest each door.…

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How to Replace the Clutch on a Commercial Jackshaft Operator

Saturday, December 31st, 2022 at 1:14 pm by Philip Kendall

In this video, we use a LiftMaster operator to demonstrate how to replace the clutch on a commercial jackshaft operator. The clutch is one of the three safety systems manufacturers build into their operators.

Taking the Assembly Apart

  1. Firstly, disconnect the power from the operator for safety.


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How to Adjust a LiftMaster Motor So the Belt Fits

Friday, December 11th, 2020 at 6:33 pm by Dan Musick

Sometimes, replacement v-belts on garage door operators are a different length than the original belt. In this video, we demonstrate how to adjust a LiftMaster motor so that the belt fits properly, even if it is a different length.

If a v-belt is too tight or too loose, you can adjust the motor to get the proper fit.


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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.