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Thread: M939/LMTV/FMTV Air dryer replacements/upgrades

  1. #11
    Corporal TEAMJENSEN's Avatar
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    Quote Originally Posted by simp5782 View Post
    Ebay. Search "skf brakemaster" it will pop up with a 24v unit. The seller is in oregon
    The ports labeled unload and purge are confusing to me.

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    I'm the dude, man. Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by TEAMJENSEN View Post
    The ports labeled unload and purge are confusing to me.

    Sent from my SM-G950U using Tapatalk
    Unloader is for the little line that was on your old dryer. That goes up to the governor. The purge port you want to put a pipe plug in. That is for a purge tank which you dont have
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

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    Quote Originally Posted by simp5782 View Post
    Unloader is for the little line that was on your old dryer. That goes up to the governor. The purge port you want to put a pipe plug in. That is for a purge tank which you dont have
    Simp5782 thank you so much for your help. You always seem to have the answer. Was not sure what to do with the purge port. Thanks!

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    Quote Originally Posted by simp5782 View Post
    Unloader is for the little line that was on your old dryer. That goes up to the governor. The purge port you want to put a pipe plug in. That is for a purge tank which you dont have
    Installing the air dryer and the wiring harness has 2 labeled pig tails. One is j1 and the other is p1. Am I correct to assume that the p1 is power and j1 is ground. Thank you again for your help!

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    Yes
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Quote Originally Posted by simp5782 View Post
    Yes
    Thank you Simp5782! Also enjoy your educational YouTube videos

    Sent from my SM-G950U using Tapatalk

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    Good info here, thanks Wes.

    My PURest just took a dump, so looking at replacing since I can’t find a reasonable priced rebuild kit.
    Have you ever tried the AD-9 dryer? That’s what several owner/operators I talked to recommended I try. Wondering how it would compare to the Brakemaster.

  11. #18
    I'm the dude, man. Steel Soldiers Vendor simp5782's Avatar
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    Quote Originally Posted by Smokinyoda View Post
    Good info here, thanks Wes.

    My PURest just took a dump, so looking at replacing since I can’t find a reasonable priced rebuild kit.
    Have you ever tried the AD-9 dryer? That’s what several owner/operators I talked to recommended I try. Wondering how it would compare to the Brakemaster.
    The Ad9 is what came on the A3 deuces so it should be fine. They are common on Amazon and Ebay. Parts are available since it is used on most fleet trucks. It's about price. I went with the turbo 2000 based on price and the internal 24v heater
    2008 F-250 6.4L Powerstroke
    1984 AM General XM923A4 ( Big Cam III NTC-400, HT4B turbo, Intercooled, #10 button, Dual fuel Line setup - MRAP Aluminum Radiator - 7" Ram Air Intake system - Dual 115 gallon tanks - Air Conditioning - 145amp alternator - Puradyn Oil Bypass system, CAT 7155 16speed transmission, Oshkosh 55000 Transfer Case, riding on 16.00 AT-3s on HEMTT wheels. )
    M923A1
    M931A2
    M1083
    M1078
    M796 Bolster
    M322 Equipment Trailer
    MEP-804A


    901-318-8353 for Help in and or around the Memphis area or transporting in the southeast. Text me first before calling.

    Tires (HMMWV, 395s, 1600s) and Transportation Vendor

    Wes

    Videos at https://www.youtube.com/results?search_query=5782simp

    https://www.youtube.com/channel/UCTd...D4dOJidPFnmYGA

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    Russ Knight (03-26-2019)

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    Quote Originally Posted by simp5782 View Post
    The Ad9 is what came on the A3 deuces so it should be fine. They are common on Amazon and Ebay. Parts are available since it is used on most fleet trucks. It's about price. I went with the turbo 2000 based on price and the internal 24v heater
    I agree about price being important, but the 24v AD-9 is about $150, versus $185 for the turbo 2000. Unless you found them cheaper somewhere else, if so pm me the link.

  14. #20
    4 Star General snowtrac nome's Avatar
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    a 24 volt purge heater can be aquired pretty reasonably for the ad-9 I have one for my lmtv but haven't got around to replacing it yet the decedent cartages are pretty spendy, but it is still the go to air dryer up here in the north for tractor trailer rigs

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