Products Archives - DDM Garage Doors Blog

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 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.…

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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.

Spring King systems work by stretching the torsion spring before winding.…

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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 Lubricate the Torsion Spring Safe-T-Winder™

Saturday, December 31st, 2022 at 1:16 pm by Philip Kendall

In this blog post, we walk you through how to lubricate the new DDM Torsion Spring Safe-T-Winder™. As well as the winder and lubricant, you will need a power drill, a screwdriver, and something or someone to hold the winder.…

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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.

Taking the Assembly Apart

  1. Firstly, disconnect the power from the operator for safety.
  2. Take the V-belt off the pulley.
  3. Remove the cotter pin from the castle nut that holds the clutch assembly in place.


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How Commercial Operator Clutches Work

Saturday, December 31st, 2022 at 1:11 pm by Philip Kendall

Commercial Operator Clutches are one of the safety devices that operator manufacturers use to keep their doors from causing injuries or damage. The clutch will slip, which keeps the operator from forcing the door open or shut if something is obstructing it.…

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The Torsion Spring Safe-T-Winder™

Tuesday, November 15th, 2022 at 4:14 pm by Philip Kendall

The DDM Torsion Spring Safe-T-Winder™ uses an ordinary drill to wind garage door torsion springs. Now you can wind torsion springs safely without winding bars!

The Torsion Spring Safe-T-Winder
Our Torsion Spring Safe-T-Winder™ easily winds springs on doors weighing up to 1500 pounds.

Historically, winding torsion springs has been one of the riskier aspects of garage door maintenance.…

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Different Types of Limit Switches

Wednesday, November 2nd, 2022 at 8:04 pm by Dan Musick

Limit switches are used to keep the garage door opener from trying to open a garage door that is already open, or trying to close a door that is already closed. Throughout the history of garage doors, engineers have come up with a wide variety of limit switch designs.…

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Unmatched Support. The Right Part. DIY with Confidence!

CUSTOMER SUPPORT HELP WANTED

Huge inventory of American-Made torsion springs for same or next day shipping! Our springs have proven reliability over three generations of manufacturing. 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.

COVID update. Because we care! When picking up parts please wear a mask or keep a distance of six feet.

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.