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07-31-2007, 09:01 AM
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#1
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Seasoned Camper
Join Date: Oct 2006
Location: Graham
Posts: 55
M.O.C. #6445
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Air Bags w/ Controller
Just finished having Air Lift air bags (SuperDuty) and controller (SureSet)installed. Right away I've noticed that even though I've set the pressure @ 20 lbs for each side, it keeps fluxuating up and down while traveling down the road (No Load). First thing in the morning the controller only shows 8 lbs each side prior to the compressor kicking in and bringing it up to the setpoint. Is this normal operations? I've checked all the lines with soapy water but found no leaks. Awaiting answers from Airlift also. Thanks for any assistance.
John K.
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07-31-2007, 10:19 AM
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#2
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Montana Master
Join Date: Jan 2005
Location: Cooper
Posts: 1,230
M.O.C. #3029
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Can't really say about your system. I have Firestone Ride-Rites without the onboard compressor. I drop the pressure to 5-6# when not hooked up to the Montana and about 20# when towing. I notice no decrease in pressure at any time and go for months without checking and the pressures remain constant. Your description says there is a leak somewhere.
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07-31-2007, 11:43 AM
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#3
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Montana Master
Join Date: Jul 2005
Location: Fort Myers
Posts: 5,933
M.O.C. #4282
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Here's what I did:
My Airlift system would drain down every night (my set point is 5#) so that when I turn the key in the truck in the morning, I would invariably get the annoying "purring" sound coming out from under my hood as my air bags were empty - spring support kept a couple lbs in them. Also, everytime you hit a bump in the road the compressor kicks on for a split second. This only happened at any inflation of 30# or less. At 40# or higher, I would not lose a drop - over any length of time. Only leaked at LOW pressure.
I finally took it back to my installer. We also tried soapy water to no avail. He took everything apart and tried to isolate the leak - no good. Finally, he took his shop air (not using my onboard compressor) and blasted it all the way up to 100# - the max rating for these Airlifts. I have not had a leak since at any level. I have been holding 6-7 lbs for 2 weeks now. Must have needed to seat a connection???
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07-31-2007, 05:58 PM
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#4
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Montana Fan
Join Date: Feb 2007
Location: travel
Posts: 146
M.O.C. #6877
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The set of AirLift Super Duty bags I have do not drop in pressure at all. You should have a low pressure sensor that won't allow the pressure to drop below 10 psi. I have had them now about 10 months and still strong. I run them at the 10 psi when not in tow and max when towing. It is normal for the air guage to fluxuate up and down due to uneven road surfaces but there shouldn't be less air in the morning from parking the night before, it should be the same or I would think there must be a leak. Let us know what you find out.
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08-01-2007, 06:24 PM
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#5
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Montana Fan
Join Date: Jun 2005
Location: Vista
Posts: 343
M.O.C. #4075
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I have had my air lift bags and compressor for 3 years. Only once did they loose air. I used some solution to spray around the fittings to find the leak. I had to remove two of them re trim and re- install and no more problems.
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08-02-2007, 03:25 AM
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#6
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Montana Master
Join Date: Jul 2005
Location: Fort Myers
Posts: 5,933
M.O.C. #4282
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My set point on my Airlifts are 5 lbs. I run at 6-7# or my headlights point down too far. I run at 55 lbs loaded with the 3400.
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