Genie 34107R.S Screw Drive Carriage
by GENIE
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Product Details
Manufacturer: GENIETools and Hardware Reviews of Genie 34107R.S Screw Drive Carriage
Customer Review: Weak link in all Genie screw drive openers...
Summary: 3 Stars
Genie 34107R.S Screw Drive Carriage
The life-span of this part depends on many factors, such as the lift-force needed to raise your garage door, how often you open the door, and whether you regularly grease the screw drive. Some owner's carriage threads wear down within a few years, while it lasts 10 years or more for others. Mine lasted 7 years raising a double door. In any case, this part is a weak mechanical link of all Genie screw drive openers, because it's destined to fail. As shown in Customer Images, the carriage threads are only 1/4" wide and 2 5/8" long, and made of aluminum (zinc?). That's designed-in obsolescence since the entire force of lifting the garage door is on that tiny area - even more so when the carriage crosses a drive screw joint, a 1" gap with no screw threads at all. Genie should have made the carriage threads much wider and longer, and reduced that 1" gap, to preclude carriage failures.
If you hear a loud metallic clunk when your garage door is raising, it could be the carriage. It's pretty easy to tell if that's what it is - the noise occurs when the carriage transverses the screw section nearest the door and the one adjoining it; where there are no screw threads. The "clunk" noise is from the carriage threads breaking apart. A few days after that first clunk, while our door was 3' off the ground and going up, the carriage threads failed completely, and the door fell to the floor with a loud bang. A free-falling garage door is a serious hazard, especially to children and pets. Our door is balanced, in that it will stay in place by itself (with the carriage freed) at the mid-height point. However, if it's only two or three feet off the floor, it will fall quickly.
My advice is to immediately stop using the door opener if the carriage is failing. I.e., open & close the door manually until you can replace the part.
Replacement only takes 10-15 minutes, once you have the tools assembled. No instructions are included, but here are my recommended steps:
- unplug the opener
- remove the hitch pin from the pull-bar (attached to the garage door) and lower the pull-bar.
- pull the rope un-locker down, freeing the carriage
- remove the single bolt where the aluminum track connects to the bracket over the garage door. If the track would fall to the ground without you holding it, temporarily support it.
- slide the old carriage toward the door and while holding the track to one side, remove the carriage.
- reverse the above steps to install the new carriage, with the carriage facing the correct direction. An arrow pointing toward the garage door is molded into the carriage.
- move the puller-rope to the new carriage.
- apply grease to the drive-screw if you haven't done that recently.
You may be able to talk Genie into sending you this part for free, if you have the life-time opener warranty.
Although this is an OEM replacement part, I rated it at 3 stars because the carriage threads are too small and not steel, so eventual part failure is a given.
Description of Genie 34107R.S Screw Drive Carriage
For Genie screw-drives with magnetic limit switches,will not work with moveable limits.(moveable limit carriage #25589R).Compatible with all Excelarator models.Genie original partTracks & Rollers Tools
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