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Thread: Spring hanger setting
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5th May 2009, 08:21 PM #1New Member
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Spring hanger setting
hello Im new to this forum and in the process of making a box trailer, the overall measurements are 2600mm x 1600mm. At present Im about to fit one set of 6 leaf spings { double eye }rated at approx 750kgs. I have been told that I should tack weld the fixed end of the spring hanger and then with no load on the springs, set the pivot shackles to 30 degrees. could anyone varify if this is correct or is there some calculation to work out this setting? Any information would be greatly appreciated.
Thanks Tigershark
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5th May 2009 08:21 PM # ADSGoogle Adsense Advertisement
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5th May 2009, 10:07 PM #2
What you need to be certain of is that as the springs flatten out that the spring shackles don't run out of travel.
I do not believe you could make any sort of general rule for all springs... what you have been told may be true for the springs you have, but it would be hard to say.
cheersAny thing with sharp teeth eats meat.
Most powertools have sharp teeth.
People are made of meat.
Abrasives can be just as dangerous as a blade.....and 10 times more painfull.
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6th May 2009, 03:32 PM #3
General rule of thumb is the centre of the eye of the rear hanger is set 25mm back from the eye of the spring when assembled and unladen.
So, the easiest way is with the chassis assembled on the ground, up-side-down, sit & tack the front hanger in place (there's a rule of thumb for this too), then with a square, mark the chassis where the spring eye lines up, measure 25mm back, and that's the point where centre of the eye of the rear hanger goes.
If you're not sure about the placement of the front hanger, have a read of my trailer build, or PM me and I'll let you know.
Yonnee.Too many projects, so little time, even less money!Are you a registered member? Why not? click here to register. It's free and only takes 37 seconds! Doing work around the home? Wander over to our sister site, Renovate Forum, for all your renovation queries.
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6th May 2009, 08:56 PM #4
I've just been thru a trailer parts catalogue I recently picked up, and there are shackle springs and spring sets in there.......WITH diagrame provided for each spring set.
Have a chat with your supplier they may be able to supply such a diagrame... would take all the guess work away.
cheersAny thing with sharp teeth eats meat.
Most powertools have sharp teeth.
People are made of meat.
Abrasives can be just as dangerous as a blade.....and 10 times more painfull.
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6th May 2009, 10:27 PM #5Too many projects, so little time, even less money!Are you a registered member? Why not? click here to register. It's free and only takes 37 seconds! Doing work around the home? Wander over to our sister site, Renovate Forum, for all your renovation queries.
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7th May 2009, 07:57 PM #6New Member
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for those who posted a response for my question , thankyou
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