Draw bar deflection
Submitted: Friday, Aug 10, 2007 at 23:51
ThreadID:
48603
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4
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mark1970
Hi guys,
You may recall that I posted a question about
suspension mods to my Aussie Swag Classic about a month ago. Have now completed my upgrade from slipper springs to shackle springs. This achieved a lift of about 3" which has allowed me to fit AT tyres and centre the axle (it previously sat back from the centreline of the wheel arch - I think this was related to the slippers. The tyres used to scrub over rough terrian).
My current question relates to acceptable drawbar deflection. The bar is 75 x 75 x 6 angle and about 2600mm along the angle. Have noticed that in the area of attachement to the chasis there appears to be a slight camber around the 1-2mm range. Probably not an issue and I will monitor closely in the future. Could be related to welding of the attachement bracket.
When loaded the towball mass is about 75kg's. Any experience or oponions? Keen for all
views,
Cheers Fellas,
Mark
Reply By: Member - shane (SA) - Saturday, Aug 11, 2007 at 10:02
Saturday, Aug 11, 2007 at 10:02
first mate, draw bars should only be welded along the bar, not across. this stops bar from cracking. secondly, angle was the way to go in the dinosaur days. these days rhs is the norm, with twice the strength of angle of the same thickness. hope this helps, pictures would help.
Shane.
AnswerID:
256799
Reply By: Member - shane (SA) - Saturday, Aug 11, 2007 at 10:05
Saturday, Aug 11, 2007 at 10:05
first mate, draw bars should only be welded along the bar, not across. this stops bar from cracking. secondly, angle was the way to go in the dinosaur days. these days rhs is the norm, with twice the strength of angle of the same thickness. hope this helps, pictures would help.
Shane.
AnswerID:
256800
Reply By: Member - shane (SA) - Saturday, Aug 11, 2007 at 10:05
Saturday, Aug 11, 2007 at 10:05
first mate, draw bars should only be welded along the bar, not across. this stops bar from cracking. secondly, angle was the way to go in the dinosaur days. these days rhs is the norm, with twice the strength of angle of the same thickness. hope this helps, pictures would help.
Shane.
AnswerID:
256801
Follow Up By: Member - shane (SA) - Saturday, Aug 11, 2007 at 10:06
Saturday, Aug 11, 2007 at 10:06
sorry, computer problems.
FollowupID:
517897
Reply By: Shaker - Saturday, Aug 11, 2007 at 12:35
Saturday, Aug 11, 2007 at 12:35
3" lift & AT's, does the tent still reach the ground?
I would also look long & hard at the draw bar, if it is going to fail, it will most certainly be at that point, as previously mentioned if it is welded laterally I would definitely reinforce it.
AnswerID:
256806