Make sure you have a latter and maybe even a flashlight handy.
Martin garage door controlled descent device.
The cdd keeps a garage door from free falling due to factors such as aging broken or weak springs or even a broken lift cable.
The marantec 73870 plugged right into my martin dc 3700 opener and all you have to do is hook up two wires and you are done.
Martin is a north american manufacturer of garage doors and openers based in the salt lake city utah.
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This controlled descent device is currently unique to martin garage doors and is now being offered as a kit for older garage doors.
If you have a button on the wall in your garage you hook up the two wires on this device in the same exact spots on your garage door opener.
Some of the products introduced by martin door since 2000 are controlled descent device a fingershield section joint grooved panel steel doors the affordable california garage door and the steel.
Quality performance learn more about the unique materials engineering and build to order manufacturing processes that combine to make martin doors an unbeatable value.