Air Brake system

Discussion in 'The Helpful Handyman' started by rast, Dec 11, 2010.

  1. rast

    rast New Member

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    Seems as though everything driving wise in this new to me motor home runs off the air system. Pressure holds pretty good @ 100 - 125 lbs.
    Problem is, I think the air dryer purge valve is "weak". Purges every 45-60 seconds now. Don't have time this week to replace or rebuild it.
    Can I put a pipe plug in the purge valve dump port in an emergency and the rest of the system work normally. I realize I would have to manually dump the air tanks.
    I am talking about 65 miles 1 way and back 2 weeks later.
     
  2. Iddee

    Iddee New Member

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    If it's only a water purge, yes you can.
    If it's also a relief valve, no you can't. Something will blow like a stick of dynamite when air pressure hits 3 or 4 hundred PSI.
     

  3. G3farms

    G3farms New Member

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    Iddee gave the correct answer.
     
  4. rast

    rast New Member

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    My knowledge increases. I was thinking the govenor on the air pump controled the pressure. I do not know where its cutoff signal comes from. There are relief valves on the tanks as well as drains.