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Dumping Air Ride Suspension before Unloading??
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plowboy
Posted 2/22/2009 20:28 (#619079 - in reply to #610262)
Subject: Re: I have a question



Brazilton KS
For those of you who think that reducing the load on the suspension is somehow going to 'burst' the bag, do you dump the air bags every time you drive through a low spot? I guarantee that driving across a small ditch is going to unload the axle a hundred times faster then unloading a hopper every would. If REMOVING load was somehow going to 'burst the bag' that should be what would do it.

Reality is that with both trucks and tractors, what really does burst the bag is COMPRESSING it to the stop suddenly when it is fully pressurized. Extending the bag will inevitably REDUCE the pressure in the bag. Compressing it, on the other hand, will INCREASE the pressure....if it is mostly extended and at 80PSI to begin with and you suddenly compress it to the stop, it is going to go to somewhere close to 300 psi and it will go BOOOM really loudly. That's why it is always wise to make sure it is not sitting with the midwheels in a low spot when you add air to the bags on a Challenger or grain cart.
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