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Jun air, just checking
Posted by Jim on January 28, 2014 at 8:22 amhere is a pic of the resivoir for my jun air. I assume this is for water collection but I noticed it was what appeared to be water and oil. Again, since my jun air is an oil compressor I’m figuring that is normal. I just wanted to make sure this was not a resivoir the compressor draws from….the water catch in the front prevost bay hardly ever gets anything in it but this one was half full.
Archived replied 12 years, 8 months ago 5 Members · 12 Replies -
12 Replies
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That sure got my attention. I have NEVER seen a tank or reservoir for a pneumatic system that was rectangular or square.
Tell us more.
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Interesting setup, I see it has 2 Norgren automatic filters as well. Those filters need changing out as a PM measure.
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I’ve been checking the water collection point in the prevost bay but after 3 weeks it only had a few ounces in it. This container was in the jun air bay. It was about 3/4 full this morning is I emptied it into a container and notice the liquid in it had a separation line like if you mix oil and water in a jar. After I emptied it I started thinking if it was a collectin container or was it a resivoir to draw from. I did add some oil to the compressor using the nut on top till the window showed full but before I turn it on I thought I better chech. It normally sits behind a divider in a small tray but I pulled it out to take a picture.
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this is how it is stowed. It has 4 lines going into the to of the resivoir.

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called jun air, that is my collection resivoir and yes it will have water and oil mixed.
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What specifically is it collecting, and how does it get there?
I understand you said water and oil, but from where? and is it pressurized. If it has air lines to and from it, where do they come from and where do they go?
And if it is pressurized why would they make it rectangular????????
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Jon,
2 lines come from the 2 jun air filters in the picture, one from the compressor motor and one from the pressure tank. It is not pressurized because there is no seal and the top clips on rather loosely. It is a model 6 according to the tech and he verified the contents would be a mix of water and oil. that’s all I know at this point.
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I’m confused but after hanging with Tom so much that is to be expected. I’d like to see it some time because I don’t get it.
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I thought using an oil filled compressor was verboten for the aux system. Perhaps with a filter system like that it’s OK? Does anyone else have an aux compressor that is not oilless?
Based on documentation I received I believe my bus originally had a JunAir model 6 but it was long gone by the time I got it. I’ve been planning to replace it with an oil free compressor based on advice here. The noise would certainly be lessened if an oil filled unit could be used, though.
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Jim
I have had 3 coaches with the same Jun Air set up. That compressor is designed to use oil.. It is therefore critical to service the seperators every year. Do not open them with out the service kits as the gaskets have probably been comprimised. The only place I found the service kits in stock were from the folks at Royale Phenoix call Dan Jordan 574-206-1216. Also it is important you use the correct oil to maintain oil level in compressor. My Royal coach was not serviced properly and ended up contaminating my aux air system. If serviced correctly the aux air compressor is very reliable. Down side is you must service the seperators regularly. The tank collects the water and oil that has been seperated and dumped. Good luck.
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Jon,
I’ll be in Tampa so you can look at it then. I did end up getting a valve for $39 and then noticed that the leak in the valve stopped. Oh well, I’ll add it to my kit of spare parts till I need it. I am going to royale phoenix in the summer to have them put in a new booth and a few other items so I will have the system serviced there. It was done in October when I bought the coach so it should be fine till then.
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