Posted on 06/07/2016 20:14
Hi, Can anyone comment on the tyre pressures being quoted on this on line swift handbook which I've found for my Swift Charisma 560. The link suggests that the pressures should be 65psi. This seems really high and I'm nervous about putting that much air in them.
https://assets.swiftgroup.co.uk/uploads/HandBooks/caravans/2008%20Tourer%20Tech%20Books/2008%20Charisma%20Tech%20Handbook.pdf
Posted on 20/07/2016 10:04
Just as a precaution, - in this hot weather read the other thread on this subject under "caravan Tyre pressure - Towing in the heat". It is in the tow cars and towing section.
Mods, Might it be worth merging two very similar threads?, Although I do accept that the other one is very temperature specific.
TF
Posted on 20/07/2016 18:35
Just as a precaution, - in this hot weather read the other thread on this subject under "caravan Tyre pressure - Towing in the heat". It is in the tow cars and towing section.
Mods, Might it be worth merging two very similar threads?, Although I do accept that the other one is very temperature specific.
TF
Posted on 21/07/2016 20:49
My twin axle van has a MTPLM of 1530kg and the tryes that are fitted are 175/65R14 86T max psi 50. tyresafe has me at 32psi but I went to check on the caravan chronicles and Ill be honest I got very confused.... can anyone help me?
Thanks in advance.
Write your comments here...Using the MTPLM and tyre specification you have given for your tyres, the calculation shown using the Caravan Chronicle website gives a result of 36psi. Using the Tyresafe website there is 'not' an exact match for your tyres. You have given the Load Index as 86T and the nearest match they have is 86XL. There will be differences of construction between the two. Using 86XL the Tyresafe calculator gives 32psi for your TA. My choice would be 36psi which would allow for uneven loading and still be 14psi below the designed maximum pressure.
Posted on 24/07/2016 18:14
I promised that once we were back from our four nights at The Howard, Rosedale Abbey CC site I would let you know how I went on with correcting my tyre pressures from 36psi to the pressures calculated by using the formula in the link posted by Marksailor. The appearance of the tyres once inflated to 54psi was much better but it wasn't until we set off for Rosedale that we noticed the difference. I say we because the wife mentioned it as I was thinking it. "The ride is very smooth" and un-boat-like. It really made a difference, what a transformation. The caravan towed, instead of being dragged and to top it of I got an average extra 12mpg.
Posted on 24/07/2016 19:20
Thats excellent- glad to hear it. Impressive change in fuel consumption there! We are just back with increased pressures (at 42 psi as calculated) and it certainly did tow better- and the tyres looked better shape as well. We are having new tyres (with higher rating, as currently they utilise the bonus load which isn't good. Will then double-check what the new pressures should be.
dinglebin
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