Wow, that's one scary possible outcome from one very small design flaw. Just goes to show how important every component can be and why design for failure mode and effects analysis needs to be a critical part of the development workflow.
That's why bikes used to use chains. Seriously, though, this column points to a common design flaw found in many products, where there's a single point of failure. And when I say point, I mean it literally, in that it often comes down to a single screw or fastener. Further, when that fastener comes loose (and usually not in the way it was intended; i.e., it comes out violently), you often get a stripped, ripped, or otherwise broken mounting point, which makes repair difficult.
Glancing briefly at Harley owner fourms, I couldn't find any mentions of this problem. On the other hand, there were a lot of comments from people who take the belt guard off because they don't like the way it looks. Apparently, they prefer to take their chances with stones and gravel possibly taking out a belt! So it's possible that Harley is careless about the fastening strategy because they assume owners will just remove the part anyway.
Hopefully someone from Harley is reading this, because this sounds like a very risky bit of carelessness.
Good observation, Ann. I checked the forums as well, just to see if the problem was widespread. I couldn't find anything. I went back to David for more info. Sure enough, there seems to be a design flaw.
I second what Alex said: It's hard to imagine that the belt guard has a single point of failure. Even the most insignificant components on many machines have some form of redundancy. Looks like someone decided the belt guard was too insignificant for redundancy. How scary.
You seem to be having some technical problems with your post. Did you copy it from another format? Usually this systems works fine if you type directly into the comment window. We would like to hear what you have to say.
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
A half century ago, cars were still built by people, not robots. Even on some of the country’s longest assembly lines, human workers installed windows, doors, hoods, engines, windshields, and batteries, with no robotic aid.
DuPont's Hytrel elastomer long used in automotive applications has been used to improve the way marine mooring lines are connected to things like fish farms, oil & gas installations, buoys, and wave energy devices. The new bellow design of the Dynamic Tethers wave protection system acts like a shock absorber, reducing peak loads as much as 70%.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.