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Getting mine fitted at Dave Newall on the 11th of this month Dunlop Kit fitted to a Fiat Maxi chassis on a Dethleffs globetrotter. I am looking for a big improvement in the ride and handling.
AS is something I've been pondering for a while.
A bit concerned about grounding the rear of the motorhome, especially for things like ferries...I 've got an Autotrail Dakota with a tow bar and I don't seem to have a lot of clearance between it and road.
So;
if I fit a system how much could I expect to be able to raise back end for the times I may need to?
Indeed can the back end be raised at all with these systems or are they purely comfort orientated?
So far all the photo's I've seen show the bags fitted to m'homes with leaf springs...I've got a torsion spring Alko axle. Are kits available for these on DIY fit basis?
Thanks!
I was worried that my insurance would consider this a modification, so phoned them beforehand. They said that provided it was fitted by a recognised trades-person, there would be no excess. I asked if Watling Engineering would qualify and they said Ok!
I was recently weighed and told that because I had air suspension the 30kg overweight on my rear axle would not be a problem if I fitted tyres with a wider profile.
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Not so, depends on the chassis, my Al-Ko chassis has a rear axle limit of 2000Kg, both Hymer and SV Tech have confirmed that it can be increased to 2240kg by fitting air assist springs.NOTE: Air Springs do not increase the load carrying capacity of your vehicle, they only improve driving and handling characteristics when carrying a load or towing. Never exceed your vehicle’s Gross Vehicle Weight Rating (GVWR).
Terry
I will be interested in your out come and look forward to a report regarding ride quality after having them fitted.Getting mine fitted at Dave Newall on the 11th of this month Dunlop Kit fitted to a Fiat Maxi chassis on a Dethleffs globetrotter. I am looking for a big improvement in the ride and handling.
Not so, depends on the chassis, my Al-Ko chassis has a rear axle limit of 2000Kg, both Hymer and SV Tech have confirmed that it can be increased to 2240kg by fitting air assist springs.
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AS Jaws has said that isn't correct.if you are in a rtc and the plods find it was down to a diy air suspension you will not be covered by your insurance and the money you saved my cost dear hope this help get it fitted by a trades person ray
& you won't be prosecuted if the axles aren't over & the GVM is.The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight/mass of a vehicle as specified by the manufacturer including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers.
Not talking about individual axles but the GVWR.
Terry
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The gross vehicle weight rating (GVWR), or gross vehicle mass (GVM) is the maximum operating weight/mass of a vehicle as specified by the manufacturer including the vehicle's chassis, body, engine, engine fluids, fuel, accessories, driver, passengers and cargo but excluding that of any trailers.
Not talking about individual axles but the GVWR.
Terry
And that's exactly what you will getGetting mine fitted at Dave Newall on the 11th of this month Dunlop Kit fitted to a Fiat Maxi chassis on a Dethleffs globetrotter. I am looking for a big improvement in the ride and handling.
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It says on the link not for Al-Ko chassis. As far as I am aware only Dulop, Goldsmittch & VB make them for the Al-Ko chassis.[QUOTE Pitty they don't make them for an Al-Ko chassis)
AS fitted theirs onto our Al-Ko chassis when we had our Knaus.
Quite right. I went to SvTech to uprate my van to 3700kg and was told that if I wanted to up the payload more ( up to 4250kg) I would need new tyres and rear air suspension.This is quite wrong! SV Tech have increased my GVWR by the fitting of Dunlop air suspension. It also increased the weight rating of the rear axle and the weight rating of the front axle remained unchanged. I suspect that it is all down to each individual make/model of motorhome and the chassis that it is on as to what can be achieved. But to state that the overall gross weight cannot be improved by fitting air suspension is quite wrong for most vans I suspect!
This is quite wrong! SV Tech have increased my GVWR by the fitting of Dunlop air suspension. It also increased the weight rating of the rear axle and the weight rating of the front axle remained unchanged. I suspect that it is all down to each individual make/model of motorhome and the chassis that it is on as to what can be achieved. But to state that the overall gross weight cannot be improved by fitting air suspension is quite wrong for most vans I suspect!
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Any feed back yet on your new air bags?Getting mine fitted at Dave Newall on the 11th of this month Dunlop Kit fitted to a Fiat Maxi chassis on a Dethleffs globetrotter. I am looking for a big improvement in the ride and handling.
AS is something I've been pondering for a while.
A bit concerned about grounding the rear of the motorhome, especially for things like ferries...I 've got an Autotrail Dakota with a tow bar and I don't seem to have a lot of clearance between it and road.
So;
if I fit a system how much could I expect to be able to raise back end for the times I may need to?
Indeed can the back end be raised at all with these systems or are they purely comfort orientated?
So far all the photo's I've seen show the bags fitted to m'homes with leaf springs...I've got a torsion spring Alko axle. Are kits available for these on DIY fit basis?
Thanks!
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Any feed back yet on your new air bags?
I fitted a Dunlop system from Marcle and really easy job. Had the one with single pump up valve with gauge and two switches. Open both n/s and o/s switch, pump up on level ground then knock both switches off, both air bags same pressure both sides.
Opposing air bags (as in n/s & o/s) should NEVER be pneumatically joined. Not only can it seriously effect on the roll (side to side), it can cause SERIOUS body weave once it gets going.
Brian, get it separated - please.
Hope it helps.
Trikeman.