From time to time someone with an older one-piece garage door will contact us to see if we can make a spring that is tapered on one end as you can see at the right end of the spring below.
In years past manufacturing costs were much less and there were more of these doors, so it was cost-effective to make large quantities of springs like these.…
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Since there have been about 20 dock leveler manufacturers over the decades, and since most have unique parts, it is best to begin by identifying the manufacturer of the leveler.
Usually, there is a label to identify the manufacturer and possibly the model.…
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There are a number of applications where a different inside diameter is needed. Our Torsion Spring Inside Diameter Converter page should help.
For example, older springs often have obsolete hardware or cones.
There are also times when shorter springs are needed to fit in a limited space as often occurs when installing longer life springs or high lift door springs.…
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When the end bearing plate of a garage door is not properly secured, it is common to see the end of a shaft wear. Left unattended, the end bearing plate can remain pitched and the bearing can cut off the end of the shaft.…
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The purpose of a snubber assembly is to raise the lip and suspend it long enough so that the lip can be lowered onto the back of a trailer. In this description, you’ll be viewing a Serco dock leveler.
Customers frequently ask us if it is possible to install the LiftMaster 8500 Openers on doors with low headroom.
The answer is “yes,” “no” and “yes” in some situations if you are handy.
The answer is “yes” if, by low headroom, you mean a garage door with the double roller top fixtures.…
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Garage door springs are made of wire, and they break because every time you open or close the door the wire bends.
This is easy to understand if you have ever bent a small wire or a paper clip to break it.…
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We are frequently asked, “Why is one of my garage door springs slinky and the other tight?” Or, “Why is one spring stiff and the other loose?”
The answer lies in the pitch of the spring wire. When a spring is coiled the wire is normally wound at a 90-degree angle from the spool or rod around which the wire is wound.…
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1. Secure the garage door in the open position.
2. Unplug the opener power cord.
3. Remove the cable from the bottom fixture and drum.
4. Turn the shaft if the cable is too tight.
5. Insert the end of the cable and wrap the cable around the drum.…
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1. Measure to assure you have the correct springs.
2. Unwind the unbroken spring or springs.
3. Remove the two center bolts.
4. Mark and loosen the set screws on the cable drums.
5. Slide the torsion shaft to the left and right to remove the old springs and install the new springs.…
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