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12-11-2023, 07:13 AM
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#1
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Winnebago Camper
Join Date: Feb 2008
Location: Rockwall, Texas
Posts: 8
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Low Air Pressure Warning 2005 Journey 39K
The Camp Freightliner manual says my coach's pressure switch will give the driver a warning whenever air pressure in the system
falls below 70 psi, either with a buzzer or warning light, or both.
Mine only has a warning light on the dash. Is this typical or is my buzzer not working?
2005 Winnebago Journey, 39K, Cat C7
__________________
Ken Carpenter
2005 Journey, Roadmaster
Air Force One, Jeep Grand Cherokee
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12-11-2023, 02:50 PM
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#2
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,340
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The regulation says either visual or both. reference: https://www.law.cornell.edu/cfr/text/49/571.121
This might be helpful too: https://www.fmcsa.dot.gov/carrier-sa...y-technologies
If yours has an audible warning, the speaker should be on the driver end of the dash cover or close-by.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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12-12-2023, 12:17 PM
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#3
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Winnebago Master
Join Date: Nov 2014
Posts: 579
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I think the speaker at the left end of the dash cover is for the backup camera, at least that is how my Journey is set up.
There should be a Piazo buzzer somewhere under the dash cover. If you find it they are readily available and easy to replace.
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2007 Winnebago Journey 36SG and 2013 Honda CRV Toad
e-Trailer XHD Towbar (Demco) Blue Ox baseplate, SMI Stay N Play brakes
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12-12-2023, 12:22 PM
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#4
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Winnebago Master
Join Date: Nov 2014
Posts: 579
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I think this is where mine is located, YMMV
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2007 Winnebago Journey 36SG and 2013 Honda CRV Toad
e-Trailer XHD Towbar (Demco) Blue Ox baseplate, SMI Stay N Play brakes
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12-19-2023, 08:36 AM
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#5
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Winnebago Camper
Join Date: Aug 2023
Posts: 9
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I fixed a lot of semi trucks, with inop, low air warnings. They were closer to 60 PSI, when the buzzer and warning light came on. Your braking will be much less than normal. Soon after that, your spring parking brakes will apply, when the yellow button pops out. Watching your gages several times a minute, is better than waiting for an idiot light or buzzer to alert you, that your air brakes are malfunctioning.
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12-20-2023, 08:21 AM
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#6
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Winnebago Master
Join Date: Nov 2014
Posts: 579
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Correct, audible and visual alarms at our around 60 psi, and between 30 and 40 psi the parking break button will pop out on it's own. Anyone with an air brake system should be testing these alarms frequently. I think the professional drivers are supposed to do this every day be for heading out.
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2007 Winnebago Journey 36SG and 2013 Honda CRV Toad
e-Trailer XHD Towbar (Demco) Blue Ox baseplate, SMI Stay N Play brakes
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12-21-2023, 12:35 PM
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#7
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,340
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I agree with Tim. this website explains in detail how to perform an air brake test and the requirements for pass/fail. https://www.myrv.us/Pgs/RV/Air_brake.htm
This test must be performed before each days drive for truckers, but for MH. it should be performed at least monthly during use or when any abnormality is noticed, and before leaving long term storage.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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