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Air dryer

Discussion in 'Trucks [ Eighteen Wheelers ]' started by emptypockets8125, Jun 18, 2013.

  1. Jun 18, 2013 #1
    emptypockets8125

    emptypockets8125 Bobtail Member

    28
    7
    Feb 20, 2010
    Waxhaw, NC
    0
    I have water in my primary air tank, changed the air dryer filter n still getting water in tank. Air dryer only has 92000 miles since new
     
    emptypockets8125, Jun 18, 2013
    emptypockets8125, Jun 18, 2013
    #1
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  3. Jun 18, 2013 #2
    cetanediesel

    cetanediesel Medium Load Member

    470
    186
    Mar 26, 2013
    Albany, NY
    0
    Does it blow off when the tanks are full?
     
    cetanediesel, Jun 18, 2013
    cetanediesel, Jun 18, 2013
    #2
    emptypockets8125 Thanks this.
  4. Jun 18, 2013 #3
    allan5oh

    allan5oh Road Train Member

    1,557
    556
    Jan 6, 2010
    Winnipeg, mb
    0
    Is this an official Bendix air dryer or a knockoff? I changed mine out last summer and started to get lots of moisture over the winter. Had to change it out for a real one.
     
    allan5oh, Jun 18, 2013
    allan5oh, Jun 18, 2013
    #3
    emptypockets8125 Thanks this.
  5. Jun 18, 2013 #4
    Heavyd

    Heavyd Road Train Member

    7,749
    6,184
    Feb 4, 2009
    0
    Make sure your dryer also has enough capacity to handle your air usage. Most regular dryers that are ordered when the truck is new are only good for a trailer with two axles. If you are pulling trains with multiple lifts chances are your dryer is under rated.
     
    Heavyd, Jun 18, 2013
    Heavyd, Jun 18, 2013
    #4
    emptypockets8125 Thanks this.
  7. Jun 20, 2013 #5
    emptypockets8125

    emptypockets8125 Bobtail Member

    28
    7
    Feb 20, 2010
    Waxhaw, NC
    0
    It is the original one from KW! It works like it should, when the tanks are full it blows off. I pull a regular trailer no extra axles. It has KW baffled as well as everyone I talk to!
     
    emptypockets8125, Jun 20, 2013
    emptypockets8125, Jun 20, 2013
    #5
  8. Jun 20, 2013 #6
    Heavyd

    Heavyd Road Train Member

    7,749
    6,184
    Feb 4, 2009
    0
    The discharge line needs to be at least 9 feet long between the air compressor to the inlet of the air dryer. If it is too short the air will be too hot and any moisture will still be in a vapor state and harder for the descant to filter out.
    When did you notice this starting? How old is the truck? What model of dryer do you have?
     
    Heavyd, Jun 20, 2013
    Heavyd, Jun 20, 2013
    #6
  9. Jun 21, 2013 #7
    emptypockets8125

    emptypockets8125 Bobtail Member

    28
    7
    Feb 20, 2010
    Waxhaw, NC
    0
    It's a 2013 T660 and I never had water up until about 2 weeks ago. The air dryer would blow off and then leak air out for about 10seconds until it would finally stop. I took it to KW n they cleaned the bottom (took it apart) and then they drained the tank and noticed all the water! So they suggested for me to change the filter n see if that would help. It did nothing. Still water at the end off the day. not sure on the model of the air dryer. I can check when it's daylight
     
    emptypockets8125, Jun 21, 2013
    emptypockets8125, Jun 21, 2013
    #7
  10. Jun 21, 2013 #8
    allan5oh

    allan5oh Road Train Member

    1,557
    556
    Jan 6, 2010
    Winnipeg, mb
    0
    Does the water look clear or contaminated?
     
    allan5oh, Jun 21, 2013
    allan5oh, Jun 21, 2013
    #8
  11. Jun 21, 2013 #9
    emptypockets8125

    emptypockets8125 Bobtail Member

    28
    7
    Feb 20, 2010
    Waxhaw, NC
    0
    It's clear
     
    emptypockets8125, Jun 21, 2013
    emptypockets8125, Jun 21, 2013
    #9
  12. Jun 21, 2013 #10
    JohnP3

    JohnP3 Road Train Member

    1,594
    683
    Feb 21, 2010
    Rock Creek B.C. Canada
    0
    The air dryer is not going to dry the air completely if the unit has lots of air leaks. The compressor cycling, causes the system to be overpowered and the system will get water into the tanks.
    Whenever the truck is stopped pull the cord and drain the tanks, the wet tank and both the primary and secondary. Fix the air leaks, you have to help the system, untill the tanks are dried out.
     
    JohnP3, Jun 21, 2013
    JohnP3, Jun 21, 2013
    #10
    jaybird8125 Thanks this.
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