Meritor 12 speed freedomline

Discussion in 'Trucks [ Eighteen Wheelers ]' started by iamred, Sep 26, 2012.

  1. iamred

    iamred Bobtail Member

    7
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    May 25, 2012
    Canada
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    I have a 2006 freightliner with a 12 speed meritor freedomline trans. The last couple days the tranny has been acting strange. When you come to a stop sometimes it takes along time to downshift back to 3rd gear. If you come to a complete stop it will stay in 9th or 10th gear. When you step on the accelerator you get nothing. The engine doesn't even rev up, then all of a sudden it will drop to 3rd.
     
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  3. Pablo-UA

    Pablo-UA Road Train Member

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    Oct 11, 2010
    Borispol, Ukraine
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    first of all check clutch and countershaft brake for wear.

    Any fault codes? Air loss?
     
  4. iamred

    iamred Bobtail Member

    7
    0
    May 25, 2012
    Canada
    0
    No fault codes and no air loss. How does one check the countershaft brake.
     
  5. great2c4me

    great2c4me Bobtail Member

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    5
    May 18, 2015
    0
    Is there any grease points on this transmission? Just wanna keep up with the maintenance. I do hear some kind of funny low audible noise between each shift and I'm thinking that it may need some greasing of some sort.
    Anyone?
     
  6. lots of character

    lots of character Road Train Member

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    1,814
    Aug 12, 2015
    0
    Not 100% on locations, but clutch bearing and there should be two more on either side of the clutch housing. That's generic, climb under with a flash light
     
  7. great2c4me

    great2c4me Bobtail Member

    26
    5
    May 18, 2015
    0
    Update, hers a good read: I was able to download & save the file of the Maintenance manual. I'm not totally convinced, though I think it may be the fork inside the bell housing, accessible from the bottom. There's grease points on it, but it has to be removed, graded then reinstalled, through that access point. Probably could be done in 30 minutes... me? I'll plan 2 hours on my back if I don't take it in.
     
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