Air level system losing air

[Nasdaqsam]

Originally Posted by STLNLUV

On my 2006 Beaver those air connections behind the battery compartment are on the secondary air tank whose pressure is shown on the "GREEN" needle of the air gauge on your dash. On mine the air bags are on the primary air tank "RED" needle. Also on the primary tank are the air brakes.
Which color needle drops pressure on your gauge? That will isolate your leak.

You can use the air fitting you mention to fill tires or anywhere you need compressed air.

It's taken a while to reply to this as we have been working on other things.

With the air. We fixed the quick disconnect, still had leaks on both the red and green needles. Fixed a pop off valve on one of the tanks under the L/R slide. Now she holds full air on the green side. Still losing air on the red. So bags or brakes it sounds like.

[Nasdaqsam]

Also wanted to add it seems like just the rear bags lose air the fronts stay full. I would have thought that is a complete circuit?????

[Nasdaqsam]

Originally Posted by bigjim8499

Be sure to check the 6 pack valves if it is a slow leak. They all leak if the have not been resealed.
jim e
06 monaco exec

We have a winner. All 6 valves leaking.

When you say reseal you mean new O-rings, correct?
I tried sourcing some locally tonight but no luck. I will check the big rig shops in the morning.

Thanks

[RayJo]

Originally Posted by Nasdaqsam

We have a winner. All 6 valves leaking.



When you say reseal you mean new O-rings, correct?

I tried sourcing some locally tonight but no luck. I will check the big rig shops in the morning.



Thanks

Check the Internet, particularly ebay, I just replaced both front and rear 6 pack manifolds for under 500.00 in parts--much less costly than repairing the valve sleeves, O-rings, etc., on each of the manifolds.

[Nasdaqsam]

Originally Posted by RayJo

Check the Internet, particularly ebay, I just replaced both front and rear 6 pack manifolds for under 500.00 in parts--much less costly than repairing the valve sleeves, O-rings, etc., on each of the manifolds.

It ended up we just needed O-rings for the rear one. I didn't realize there was one on the front also. The front bags hold air the rears we have down to it going done every other day. A definite improvement. I think we are going to need it get up on a lift to find anymore.

[super_rep]

If you ever go west on US 80, stop at HWH in Moscow, IA and have HWH replace all the o-rings on the 6 pack level control manifolds. 13 years old-it's time. Had mine done there last year. leveling is perfect and holds for months when on our lot in AZ.

[Nasdaqsam]

Originally Posted by super_rep

If you ever go west on US 80, stop at HWH in Moscow, IA and have HWH replace all the o-rings on the 6 pack level control manifolds. 13 years old-it's time. Had mine done there last year. leveling is perfect and holds for months when on our lot in AZ.

We were able to do it ourselves. Had to clean up the block a bit but the rear one is done. Someone said there might be a front one but I have not had a chance to get under to check that yet.

[TwelveVolt]

You mentioned finding a lift. A few years ago we stayed at a campground that had an oil change pit. It was an excellent opportunity to inspect and do maintenance on the chassis. You could check around your neighborhood to see who has a pit you might be able to use by the hour.

[spuds]

Originally Posted by Nasdaqsam

We have a winner. All 6 valves leaking.

When you say reseal you mean new O-rings, correct?
I tried sourcing some locally tonight but no luck. I will check the big rig shops in the morning.

Thanks

If this is an HWH six-pack manifold like those used on Foretravels, you can source the o-rings at most hardware stores (the ones that have the drawers of loose bits).

From the discussion on Foreforums

We got the official HWH RAP6554 kit today (about .65 for each o-ring) and I measured them with my vernier dial calipers.

I came up with a cross section of .068 which correlates to a 1/16 0-ring. A 1/16 O-ring is listed as .070 actual on the AS568A chart.

The small one I measured as .688 OD which corresponds to a #015 which is listed as .691 OD on the AS568A chart

The large one I measured as 1.498 OD which corresponds to a #028 which is listed as 1.504 OD on the AS568A chart

There is also a gentleman who had the internal plungers replicated (the seats eventually "take a set" and can stop sealing reliably) and sells a full 6-pack rebuild kit for about $100 per six pack. Here's what the internals of a valve look like if you need to do a full rebuild http://www.irvblog.com/foretravel%20...eveling-Valve/

Let me know if you need help finding this info. PM would probably be best since I don't normally follow this sub-board, I just happened to catch it in the recent topics.

Michelle

[Nasdaqsam]

Originally Posted by spuds

If this is an HWH six-pack manifold like those used on Foretravels, you can source the o-rings at most hardware stores (the ones that have the drawers of loose bits).

From the discussion on Foreforums

We got the official HWH RAP6554 kit today (about .65 for each o-ring) and I measured them with my vernier dial calipers.

I came up with a cross section of .068 which correlates to a 1/16 0-ring. A 1/16 O-ring is listed as .070 actual on the AS568A chart.

The small one I measured as .688 OD which corresponds to a #015 which is listed as .691 OD on the AS568A chart

The large one I measured as 1.498 OD which corresponds to a #028 which is listed as 1.504 OD on the AS568A chart

There is also a gentleman who had the internal plungers replicated (the seats eventually "take a set" and can stop sealing reliably) and sells a full 6-pack rebuild kit for about $100 per six pack. Here's what the internals of a valve look like if you need to do a full rebuild HWH Leveling Valve

Let me know if you need help finding this info. PM would probably be best since I don't normally follow this sub-board, I just happened to catch it in the recent topics.

Michelle

Great info. I think we have this one fixed for now but this will be good info to keep for future leaks. Thanks

[Nasdaqsam]

Update,

So we found every leak we could possibly find with out another option for looking. The bubbles, listening and all other basic options have been exhausted. And we still getting a slow leak on the red side (about 24 hours to 0) and a very very slow leak on the green side (about 48 hours to 0).

right now neither is a big issue because we have not been actually camping yet but I can see having the coach go off level every 24 hours is going to be something I can want fixed.

I have been looking at the ultrasonic leak detector's and earlier posted offered as a suggestion. Does anyone have any experience with one of these? Would hate to drop 300 on one to find out they do not work. I know the $300 sound crazy but it how much is going to cost to bring this to a garage at $100/hour to trace these going to cost?

[BFlinn181]

Google lists places that rent ultrasonic leak detectors. Also, don't know where you live or who you know, but you might ask at the local gas company (LP or natural gas) or installers of gas appliances, fire departments, etc. Perhaps you can find a tech with the equipment willing to work on the side or for a 6 pack. I agree, paying a service garage at $100 an hour is not to my liking, but also buying a $300 detector that will seldom be used pinches my wallet. Maybe you could carry it with you and charge your campground site rental fee to find leaks for folks in the campground.

[Nasdaqsam]

Originally Posted by BFlinn181

Google lists places that rent ultrasonic leak detectors. Also, don't know where you live or who you know, but you might ask at the local gas company (LP or natural gas) or installers of gas appliances, fire departments, etc. Perhaps you can find a tech with the equipment willing to work on the side or for a 6 pack. I agree, paying a service garage at $100 an hour is not to my liking, but also buying a $300 detector that will seldom be used pinches my wallet. Maybe you could carry it with you and charge your campground site rental fee to find leaks for folks in the campground.

I like the way you think. Mobile air leak finder at your service, cheap at twice the price.....lol

[TwelveVolt]

If the problem is a leaking check valve, there will be no escaping air at the point of the problem, but the ultrasonic sensor may detect it.