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12-23-2011, 03:07 AM
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#1
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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air control manifold for bay fridge/freezer slide
hi all,
i have a bay fridge/freezer that comes out on an air slide. it comes out just fine. and goes in just fine. however, when it is out, the manifold leaks.
it leaks out of the exhaust muffler that is adjustable to control the rate the slide goes in or out.
so, clever me went to grainger and got a new one for 6 bucks. feeling very pleased with my troubleshooting prowess i installed it (it is not in an easy position for a 6'2" 270 pound guy to get at. )
of course, it didnt make any difference. if i turn the screw on top of the exhaust piece, if i adjust it so it comes out very very slow, i can get the air to stop exhausting.
any ideas? there is also a red screw on each side of the manifold (one for in and one for out) that michael said was a regulator screw. i will see what it does tomorrow.
it is the same manifold they used for the dupree air poo tank valves.
tom
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12-23-2011, 09:56 PM
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#2
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Senior Member
Join Date: Oct 2007
Location: Huntington WV
Posts: 1,041
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Ha ha,
I did the same thing. I worked on the muffler, too.
The problem is that the solenoid valve in the manifold is leaking. If you find a good inexpensive source for them, then let us know.
I couldn't get mine to stop, so I added a manual shutoff valve to the manifold since I don't ever use the air operated dump valve.
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Richard Rhonda Ty and Alex Entrekin
1995 Newell # 390 DD Series 60, Allison World Trans
Subaru Outback toad
CoMotion Tandem
Often wrong, but seldom in doubt
Rhonda's chronicle https://wersquared.wordpress.com/
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12-24-2011, 01:19 AM
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#3
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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i will have to find a solenoid then. this is the freezer and i would like to use it.
thanks richard
tom
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01-05-2012, 12:13 AM
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#4
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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ok, dummy strikes again. i bought a new manifold and installed it. same problem only on the opposite side. now i have a spare manifold. it is the same one used on the air dump valves for the poo tank.
ends up the air cylinder with the piston itself has a bad seal and is letting air flow to both sides of the piston so it has to escape somewhere so it goes out the exhaust.
the cylinders are custom made for newell at this length. but, i did get a rebuild kit from the manufacturer for $12.60. what a bargain so i got two....
i will take it out and rebuild it this weekend. should be fine then i hope
tom
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01-06-2012, 11:51 PM
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#5
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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the air piston to move the freezer/fridge in and out is an smc cylinder NCA1D150-4200
the seal rebuild kit NC1A150-PS $12.60. ordered directly from smc.
it is only held on by a pin on one end and a nut on the other.
i took it apart. the seal kit must be for other cylinders too because it had one extra set of seals that were not used.
after i took it apart i cleaned it up good and put the new seals in. i bought some non petroleum based grease to do the orings with. no grease on the cylinder rod.
the cylinder is held together with 8 long threaded rods that allen bolts go onto.
didnt take all that long.
put it in and it works fine and doesnt leak at all now.
pictures below. the orings and seals on the box are all there was to do it.
tom
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01-07-2012, 01:11 AM
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#6
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Senior Member
Join Date: Jun 2009
Location: Idyllwild, CA
Posts: 1,340
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The only problem with grease is that it will attract the dirt. I have always used used a small oiler for that or those types of devices.
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Steve & Tricia
1982 Newell 38' (built before #1) 6V92 DD, 5 Speed Allison, 12.5 KW Kohler, Couch used to make into a Bed but I fixed it!
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2007 Yukon, 1981 CJ7 Laredo, 2002 Honda CRV, 1955 Thunderbird, 1952 Pontiac Sedan Delivery, 1952 Ford 8N, 1958 Airstream, 1959 Glasspar 16' Avalon, Cabin in the Woods........what will I work on next
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01-07-2012, 01:13 AM
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#7
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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i used very very little. just enough to coat the orings.
tom
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01-07-2012, 01:21 AM
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#8
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Senior Member
Join Date: Feb 2008
Location: Riverside, California
Posts: 1,543
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Did the phone come with the rebuild kit?
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01-07-2012, 02:33 AM
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#9
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Senior Member
Join Date: Mar 2007
Location: mesa, az
Posts: 1,375
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yea, and the hamburgers in a bowl too.
tom
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