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Tag Axle Lift
Anyone have guidance on a leaking tag axle switch. 98 shell, 99 conversion. Stethoscope shows nasty air leak from compartment located to left of driver.
Thanks in advance!
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8 Replies
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Replace it with a new TW-1 Bendix valve
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I have the valve…..my big question is how to get at it! This Country Coach has a drivers seat surround….that coupled with my 6’4” frame, and the damn ISRI makes it look like a challenge. Looks like a riveted box attached to the lower sidewall, just aft of the drivers window. I see no other way in and I would hate to resort to my plasma cutter……
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I replaced the PP1 valve Spring brake and the TW1 valve I removed the drivers seat seat only not base and was able to access screws for panel where valves are at.
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Got it, Thanks! A panel with quarter turn Dzus fasteners would have been nice.
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Country Coach does not make it easy!
Changed out the valve for the tag axle lift however, it was only a failure of another push on pneumatic fitting. The chassis just had its 20th birthday and I have been dealing with leaking push on pneumatic fittings for about the last 8 years. I am and will continue to replace both Prevost and CC’s push in fittings with compression.
Don’t know if that “O” ring looking thing that resides deep within the fitting is rubber or what….what I can say is that safely is that they have a limited life span. Don’t know how many others have had or will face the same thing however I can say that it is prudent to monitor them for leaks. The engine driven compressor can handle most of these but when parked……..ahh, no!
makes me wonder how many Norgen valves I changed for a leaking fitting. Very close to having all compression fittings…..be sure you wear your Kevlar arm chaos….
i would recommend changing them out say every ten years to be on the safe side…..just sayin!
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John, you are right on. Every time I am working on the bus and have access to fittings, if they are push on fittings, out they come and in go compression.
What a royal pain it is doing that, but I don’t know the alternative.
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After replacing the TW-1 valve and pressurizing the system I was able to detect a small leak and a hairline crack in the pressure switch.
Ordered a replacement but noted in the Hobbs spec sheet that the valve is pressure adjustable.
Any ideas on the setting? Factory default is 8-10 psi.
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Yes, mine will lift but not completely off the ground. I`ve adjusted chain that lifts it for max height. it helps in slow turning radius. Some other models may lift completely.
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