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All Aux Air Filters Replaced
CHEAP INSURANCE – Just changed ALL auxiliary air filters, andWOW!!! They were dirty!The first is a Parker-Watts self moisture ejecting type filter and is the first filter inline after my aux air compressor.Second inline is a Parker coalescing filter I added last year. (Its filter did not need replacing as its indicator does not so indicate)The coalescing removes sub-micron particles and aerosols. I really like this add as it ensures clean, dry air.3rd is a Norgren filter and regulator for interior converter functions. I.e., bed lift, sliding doors, etc.4th is the Prevost factory installed Norgren aux air filter.5th are the two filters on the aux air compressor itself. -
4 Replies
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Attached are photos of the aux air compressor filters.
P. S. – the aux air compressor is not original to my bus 2007 build. I believe it is only four years old if I remember correctly from reading receipts that came with my purchase. THEY TOO SURE WERE DIRTY
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It is often talked about how clean, dry aux is critical.
Here is a link that discusses how coalescing filters remove sub-micron particles AND all moisture.
The filters replaced were in use prior to installation of the coalescing filter I added on my bus last year, so will be interesting to monitor how clean the new filters remain.
When parked and using aux air, the coalescing filter is in advance of all devices using air.
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Jeff nice write up and something I will have to do with a new to us coach, not knowing how things were maintained is really bugging me. Thanks for a great write up.
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Every used coach we buy is a mystery. Without documented proof of service we have little choice but to assume needed service was not done.
Expensive oversights start with the engine and transmission. Doing full fluid and filter changes will not erase neglect, but are what I consider the most important starting point.
None of us can tell much about how well or poorly maintained tires and batteries have been, but from a safety perspective if there is even a sniff of lack of maintenance on tires I am either going to have them broken down and inspected looking for evidence of being run with low pressure, or depending on date code, replace them. Batteries are not a safety issue, but if a set has been abused battery issues for a new owner can look like other problems like bad inverters, or can just drive someone crazy. The way to evaluate them is monitor their performance.
After those major areas of concern comes everything else. It is presumed a per-purchase inspection caught things like hub seal leaks, lube status, condition of shocks, air bags, brake chambers, air leaks, etc.
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