Friday, Jun 25, 2021 at 10:48
Clive
If breaking there 50/70mm in front of eye, that would indicate to me the spring under leaves are not supporting the main leaf sufficiently
well enough and possibly the breaks are near the end of the second leaf. ie too much main leaf protruding past second leaf. The wrenching forces created when travelling over bumps, by the equaliser/load share section, is probably causing unusual bending forces in that area.
Does the spring have capture wraps to hold the main and second leaf together OR are they free to flap?
To me, it is the design of the spring pack at fault. OR, if there is a difference between each side,
the springs may have been fitted "back to front" if the eye, centre, eye distances are equal.
If the packs have a difference, one end to the other and the centre bolt hole IS in the centre then I would think the front spring pack and the rear spring pack on that side would be fitted in a reverse position to each other to cater for the equaliser forces and movement. ie, strongest end near the equaliser. The fitting of a pack the correct orientation caters for bump forces and compliant action.
for example. 60 series LC have a front spring pack with the longer end to the front, but the rear packs are the other way around. Mostly for control of bump steer purposes though.
It might be that the caravan manufacturer/assembler "dud" has fitted both side packs the same orientation and not as they should be, purely because the centre bolt IS in the centre and they look the same on a Monday or Friday morning. If replaced in same way the fault is reinstated. All depends if the spring packs differ either side of centre. Just a few possibilities to
check!
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