Gooseneck check
Oct 5, 2009 5:32:49 GMT
Post by krawall on Oct 5, 2009 5:32:49 GMT
Hi Guys,
look at these two pictures
syvega.files.wordpress.com/2009/10/imag0024.jpg
syvega.files.wordpress.com/2009/10/imag0025.jpg
First you see the split pin is straight, but I promise I bent it. What happened is that the bolt has worked its way to the port side of the gooseneck and has such compressed the split pin again. You can't see it but the split pin is bent in a way that it won't easily come out, nonetheless, lucky to catch this one early (!?)
Other picture shows the port side of the boom gooseneck fitting where the seam seems to have been broken off, allowing the bolt (it's not a bolt, just a pin) to rotate freely
If you see how much of there is (or lack of) overlap from the width of the bolt head to the fitting, I doubt this is sufficient. On the other side, why is there so much side force exerted - the only load the pin needs to carry is forward backward and up/down. I wonder if lack of lubrication is the culprit (most likely)
Would you have thought of that?
Anyway it seems a bit undersized/underdesigned for such a critical part. Give it a bit more work and the split pin will fall out and with it the pin and finally the boom.
Tom
look at these two pictures
syvega.files.wordpress.com/2009/10/imag0024.jpg
syvega.files.wordpress.com/2009/10/imag0025.jpg
First you see the split pin is straight, but I promise I bent it. What happened is that the bolt has worked its way to the port side of the gooseneck and has such compressed the split pin again. You can't see it but the split pin is bent in a way that it won't easily come out, nonetheless, lucky to catch this one early (!?)
Other picture shows the port side of the boom gooseneck fitting where the seam seems to have been broken off, allowing the bolt (it's not a bolt, just a pin) to rotate freely
If you see how much of there is (or lack of) overlap from the width of the bolt head to the fitting, I doubt this is sufficient. On the other side, why is there so much side force exerted - the only load the pin needs to carry is forward backward and up/down. I wonder if lack of lubrication is the culprit (most likely)
Would you have thought of that?
Anyway it seems a bit undersized/underdesigned for such a critical part. Give it a bit more work and the split pin will fall out and with it the pin and finally the boom.
Tom