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Shop Air
I have an minor but annoying leak in my rear suspension and will someday get around to fixing it. For the meantime, I replenish my coach height about every three days or so by firing up the engine.
This is my question: Since my shop compressor does not have a dryer installed, would I be introducing moisture into the suspension system by airing up with it? Perhaps this is not an issue if the shop air is routed through the coach’s own dryer. …or perhaps it is time to install a dryer on the shop compressor.
Any ideas?
Thanks
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7 Replies
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Air dryers are pretty inexpensive, so I’d install one. Regardless, you can use the air fitting in the engine bay to air up the coach and the shop air compressor air will be going through the coach’s dryer. I’m assuming you don’t have an auxcilalry coach compressor. If you did you’d simply turn it on when needed.
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Chuck,
If you get a compressor with a large tank that is almost as good as a dryer. I have a 60 gallon tank and because of the volume of air inside it the air coming from it is almost as low as room temperature so whatever moisture it carried when being compressed dropped out into the tank. I just drain the tank periodically.
But your Liberty is likely to have a moisture trap in the accessory system so when you introduce air via the Schrader valves front or rear it likely is passing throught the dryer or moisture trap prior to working its way through the aux system to the air bags. Just remember to periodically drain the moisture trap or service the air dryer.
Question: In storage why not lower the coach all the way to the ground? It makes exit and entry easier, and there is no benefit I can think of to keep it at driving height. When I park in the garage I either raise it up and put stands under it, or have it all the way down. For extended storage it is on stands and air in the suspension is dumped to put less pressure on the tires.
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Chuck,
My shop compressor (upright 50 gal) had a drain valve on the bottom. I hooked a lanyard to it and just drain the tank any time I’m going to use shop air for the bus. I’ve never had an issue with water, as long as I purge the valve often.
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Thanks guys,
I ordered a dryer today but feel a bit better hearing your reassurances.Jon, I’m doing a little R&R in a couple of bays and having the coach at ride height is easier on the old back. Replaced the macerator pump today and set the coach all the way up before tipping it over to the passenger side. This kept any residue in the holding tank away from the work area….and yes, I never venture under the coach unless it is on the stands.
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Chuck,
Isn’t the macerator fun! I just did mine a few weeks ago and it took 2 days of sore muscles to recover. Hope your’s was in an easier place than mine, my arms were 6 inches too short…
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So, it’s ok to dump the air bags for storage? Thought I read somewhere that the bump stops inside the bags were not designed for that much weight?………Just asking, I don’t know. That may have been on my previous coach.
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I am not aware of any downside to lower the coach all the way down for storage as far as the bags go.
I would not ever drive with a coach down on the internal bumpers in the air bags, but I am sure if the coach is sitting still it is OK.
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