Tyre Pressures

DavidKlyne replied on 28/11/2016 20:23

Posted on 28/11/2016 20:23

I have Tyrepal sensors on my motorhome wheels which work quite well. What I have noticed is that after the warmth of summer the pressure have fallen a bit. Front 55 to 51 psi and the rear 80 to 75 psi. Just wondered what the collective wisdom is about leaving them as they are, after all less than 10% below normal so should I inflate or are they safe to leave at the lower rating. I know some people reduce the rear setting anyway but not heard that about the front. We are going to Chatsworth next week for 3 days so we will be travelling fairly light. Whilst the sensors are excellent at giving you information they are a right pain to adjust pressures but obviously safety comes first.

David

JVB66 replied on 29/11/2016 21:21

Posted on 29/11/2016 21:21

Generally speaking yes, but I'm sure there will be quite reasonable exceptions.  

...So our car handbook with tyre pressures for our vehicle are not really correct? that would be interesting to accident investigators,or when pulled over for roadside checks

...but dont they say 'laden', 'unladen' etc?

om sure my old Audi handbook had differing recommended pressures based on load or number of occupants.

dont see why this cant be used for MH...though basing on actual axle weights is far betterWink




..so your tyre pressures are adjusted each time you travel depending on "axle load"Undecided

replied on 29/11/2016 21:37

Posted on 29/11/2016 21:37

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young thomas replied on 29/11/2016 21:40

Posted on 29/11/2016 21:40

JVB.....no, but each owner, for a given van, will have their own 'running weight and axle weights'....there could be very large variations yet still be within the capabilities (and the legal limits) of the vehicle.

for example, another owner of our type of van might run at half a tonne or more different to us....in which case, it makes sense for both these owners to know their weights and use the appropriate pressures, which might be considerably diferent.

for both to both use some abitrary 'handbook' figure might mean neither van being run at appropriate pressures.

just another good reason why all vans (including caravans) should be weighed....

its not black and white, you know....Wink

JVB66 replied on 29/11/2016 21:45

Posted on 29/11/2016 21:45

JVB.....no, but each owner, for a given van, will have their own 'running weight and axle weights'....there could be very large variations yet still be within the capabilities (and the legal limits) of the vehicle.

for example, another owner of our type of van might run at half a tonne or more different to us....in which case, it makes sense for both these owners to know their weights and use the appropriate pressures, which might be considerably diferent.

for both to both use some abitrary 'handbook' figure might mean neither van being run at appropriate pressures.

just another good reason why all vans (including caravans) should be weighed....

 

...I am sure comercial vehicles from say the Stobart group have there TPs altered when traveling loaded or emptyUndecided 

replied on 29/11/2016 21:56

Posted on 29/11/2016 21:56

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DavidKlyne replied on 30/11/2016 15:30

Posted on 30/11/2016 15:30

In the end I decided on a compromise solution. I restored the front tyres to their correct pressures but left the rears as they were especially as many people seem to drive with much lower pressure than recommended by Bailey. It was a bit of a faff removing the cable ties and wheel trims and then the sensors especially in the freezing conditions.

David 

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