International Door & Operator Industry

NOV-DEC 2017

Garage door industry magazine for garage door dealers, garage door manufacturers, garage door distributors, garage door installers, loading docks, garage door operators and openers, gates, and tools for the door industry.

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Page 42 of 126

(continued from page 38) When mounted to the frame, vertical track is angled inward at the top to gradually steer the door away from the jamb as the door moves upward. This is to relieve friction from the outside weather seal that can become hard and rigid on cold winter days. The hinges each contribute to angle the door away from the jamb as the door moves up. The rollers place the door perpendicular to the floor when the door is closed even though the track leans back toward the house. If you place a #1, #2, and # 3 hinge on a table with a roller sleeve, you will see that each roller is at a different height off the table. If you place a # 1 hinge next to a #10 hinge, you will see a huge difference between the offset of the roller sleeves depending on the hinge. Manufacturer physics dictate the offset or difference can only be .187- .250 inches. Fixed brackets are only at the door corners where they act as a guide and keep the door square in the track. On 3" commercial track, the norm is to provide no jamb brackets, but a full angle. The lowest point where the full angle is secured to the track sometimes steers the door too far away from the frame and there will be a large gap when the door is closed, so the hinge between the bottom and second panel must be a a #3 hinge to compensate and close the gap. NOTE: When servicing 3" track you start with #3 hinges. Most garage door hinges are made with 2 sleeves or metal tubes. One sleeve unites the top and bottom halves of the hinge where you have the most friction, grunting, grind, and noise. Silicon lubricant is highly recommended to halt wear and alleviate the noise. The other sleeve has an internal diameter of 7/16"to receive a standard roller with a 7/16" thick stem. Most hardware manufacturers will make hinges in a few different gauges. The heavier gauges are meant for heavier doors. The hinges and rollers serve not only guides, but actually all six hinges and corner brackets support the door when it is open as well. If the hinges are a very light gauge on a heavy door that bows in the center, you will have some hinge warping and the door can fall from the tracks. This is why you must provide the appropriate hinges, struts, and good, solid rollers. If the horizontal track is under- gauged, the toe can unroll and straighten out resulting in a door falling down. If you see a track toe unrolling, close the door and lock it down until you can replace the horizontal track with a heavier gauge. Case Study: A homeowner called to say there was a loud cracking noise when the door opened. I thought the noise might be coming from the steel door panel, but to my surprise it was the #1 hinge cracking. Not shown in this photo are all 6 hinges were experiencing the same warping. You can see the hinge is falling apart. In short time the steel would have cracked through and the roller sleeve pop out resulting in a dangerous condition where the door could fall. The correct hinges for this steel-backed door should have been 14 gauge, but someone preferred to make an extra dollar by putting the homeowners and their children at risk. I didn't have any heavy duty hinges when I took this photo, but couldn't leave it like this. I instructed the homeowner to close the door after I left and not to use it again. I copied the home phone number to follow up later. However, I did call the installing company and told them they install incorrect hinges creating an unsafe condition. They assured me it would be taken care of which never happened. Three days later I called the homeowners and was told no once came by their home or called. The next day I went back to the job with six #14 gauge hinges and made it right. It made me feel righteous knowing the door was now safe. TIP: Always carry #1-#4 hinges (14 gauge), a 16 foot strut, and 12- 2" rollers to every service call. On lighter non- insulated doors, thinner hinges can be used. Homeowners know very little about the numbering or gauges of the hinges. When homeowners choose to DIY, they will usually purchase the lightest # 1 hinge because it is the lowest priced hinge on the rack. This is evident when you go on a service call and see a #1 hinge instead of the proper one being #2, 3, or 4. Inexperienced homeowners mess up doors and operators all the time. It is your responsibility to notify the homeowner of mistakes and offer repairs. Don't leave a job that is dangerous or incomplete or it may come back and bite you in a big way; besides it is the right thing to do. Be a Professional about it. You not only represent your company, but also all garage door technicians and our industry. In closing, I want to remind all readers to start planning your trip to Las Vegas next April. The annual IDAExpo ® will be conducted April 25-28. Our industry association needs your attendance and support. I want to remind all readers to start planning your trip to Las Vegas next April. The annual IDAExpo ® will be conducted April 25-28. Our industry association needs your attendance and support. 40 International Door & Operator Industry™ TECHNICAL

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