For your peace of mind the pads actually do not fall off, they must be knocked, bumped, or scraped off. During third-party testing, all models of our SnapPads are subject to and must pass something called a "shake test" to see what speeds are required to experience a loss. Rest assured that the speeds that are necessary to knock the pads off while driving are not allowed on public roadways.
If your rig has experienced the loss of a pad there are a few reasons why this may have happened:
The first reason is that the original installation was not completely secure and the metal landing foot did not install completely under the rubber lip of the SnapPad. You can check if you have a proper install quite easily by running your finger around the lip of the pad. While you may not be able to see it, you should be able to feel it as being out. In this case, you can simply retract your jack and attempt to level again to complete the installation. Please also see our installation tips guide article if you are encountering any difficulties.
By far, the most common reason for the loss of a pad is when your rig experiences bumpy or uneven ground, potholes both large and small, high curbs, and of course speed bumps. All of these areas can cause the landing foot and pad to come into contact with the ground. This bottoming out can not only damage your pad but also scrape it off. When you are navigating these kinds of terrain please exercise caution, and use parking lot type speeds to protect your pads and jacks.