Tuesday, September 8th, 2020 at 4:10 pm by Dan Musick
In order to test the cycle life of different spring systems, we designed a Counter & Timer Modification for LiftMaster Operators. This modification allows the operator to close immediately after opening and to open immediately after closing. This, in turn, allows the operator to run nonstop for days at a time so that a 10,000 cycle test can be completed in just a few days.…
Friday, August 28th, 2020 at 5:02 pm by Dan Musick
Garage door opener limit switches electrically limit the door travel as it opens and closes. These switches “tell” the opener or operator when to stop.
The most common limit switch comes in most of the Sears, Chamberlain and Liftmaster openers made since the early nineties.…
Friday, August 14th, 2020 at 5:33 pm by Dan Musick
In the garage door industry, we distinguish between “openers” for residential applications and “operators” for commercial and industrial applications.
Back in the early eighties, I worked for Northwest Door in Elgin, Illinois. While there, I got to know a gentleman who had formerly worked for John Greene Corporation in Downers Grove, Illinois.…
Since 1980 I have been training professionals to repair the various types of equipment in the garage door industry. I had started my career with Overhead Door of Elk Grove in January of 1979. The following year, I began training the servicemen there in what was, during that time, the largest garage door sales, installation, and service companies in the industry.…
This week one of our wholesale customers called me about stripped operator drive sprockets. This is usually caused by overstress. However, in this case, it could possibly be due to half-baked torsion springs. I recommend the service tech disconnect the drive chain and check the door balance as per the instructions we have on our “Balanced Garage Door” blog.…
Friday, February 14th, 2020 at 5:53 pm by Dan Musick
Old Style Taylor Black End Hinge
Taylor garage doors have been obsolete since the early 1990s. After they ceased production, we often had to replace an entire door if only one of the sections was rusty or damaged. All the hardware, tracks, and torsion assembly parts for the older Taylor doors are replaceable with standard hardware, including Taylor garage door hinges.…
Friday, February 7th, 2020 at 6:10 pm by Dan Musick
Garage door springs counterbalance the weight of the door, making it easy to lift. In this blog, you will find links for how to replace garage door springs on any of the standard systems.
First, you will need to identify the type of spring you have.…
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.
