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Post by bernieg on Jul 10, 2017 11:22:50 GMT 12
Hi guys, I'm after clarification on what is required when mounting Driveshaft safety loops to a chassis rail. I know what is required for bolt size and rating, and what is required on the driveshaft safety loop side. My question is, If I run 2 bolts per side to attach the mounting plates, Do I also need to sleeve the holes where the bolts run through the chassis? (Or is it fine as long as I have washers both sides and Nyloc nuts) Or would it be better to have nuts welded into the chassis that the bolts then connect to? Thanks
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Post by Todd on Jul 11, 2017 9:27:57 GMT 12
You're on the right track, yes it will need to be sleeved / have crush tubes fitted.
Here's the wording you're after:
5.20.2 A fastener which attaches structural sections, brackets, or mechanical components to RHS, channel, or tubular chassis rails or cross-members in a low volume vehicle, must pass through a tubular steel reinforcing crush-tube that: (a) is manufactured of a material with a wall thickness of not less than the material used for the main chassis rails or cross-members; and (b) is of an inside diameter that provides a close tolerance fit for the bolt; and (c) is inserted within the chassis rail or cross-member through a hole that provides a close tolerance fit for the reinforcing, on the face of the chassis rail or cross-member opposite to that which the component is positioned against; and (d) is fully welded to the face of the chassis rail or crossmember opposite to that which the component is positioned against.
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Post by bernieg on Jul 11, 2017 15:13:55 GMT 12
Thanks Todd, exactly what I needed.
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