Loose rivet in Kwikee steps(SOLUTION)
I have a set of Series #32 Kwikee Steps on my rig, the bottom left side drops significantly more than the right side when you step on them. I have found that the top step on the left side has a loose...
Forum Discussion
I'm not sure that shear values of non grade 8 bolts is an issue, but is a good idea considering the quality of non-rated foreign made bolts.
The off the shelf strength of a 1/2" diameter bolt in single shear is 8,717.5 pounds. A 250 lb. person stepping on the edge of the step assuming a 24" moment arm would result in a 500 lb. load. This is a pretty simplistic analysis, but suggests that the strength of the bolt is probably not an issue.
Edit: A rough estimate of the dynamic v. static loading should probably increase that value by 2.5 which would then be approximately 1,250 pounds, and would probably account for my 6'-5" son launching himself out the door and bouncing down the stairs.
The off the shelf strength of a 1/2" diameter bolt in single shear is 8,717.5 pounds. A 250 lb. person stepping on the edge of the step assuming a 24" moment arm would result in a 500 lb. load. This is a pretty simplistic analysis, but suggests that the strength of the bolt is probably not an issue.
Edit: A rough estimate of the dynamic v. static loading should probably increase that value by 2.5 which would then be approximately 1,250 pounds, and would probably account for my 6'-5" son launching himself out the door and bouncing down the stairs.
