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Meritor axle flange nut torque.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dino soar, Oct 3, 2020.

  1. Oct 3, 2020 #1
    Dino soar

    Dino soar Road Train Member

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    I have 40000 lb Meritor rears in my truck I think they are RT 140?

    I am looking for what to torque the axle flange nuts.

    They take a 15/16 socket so they should be a 5/8 fine threaded nut.
     
    Dino soar, Oct 3, 2020
    Dino soar, Oct 3, 2020
    #1
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  3. Oct 3, 2020 #2
    Goodysnap

    Goodysnap Road Train Member

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    185-205ft lbs.

    1/2 in air impact will usually get you right in the ballpark.
     
    Goodysnap, Oct 3, 2020
    Goodysnap, Oct 3, 2020
    #2
    Lite bug, BoxCarKidd, Dino soar and 1 other person Thank this.
  4. Oct 3, 2020 #3
    Dino soar

    Dino soar Road Train Member

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    I may not have had the right Spec for them the first time.

    On one wheel the nuts actually came loose and luckily I didn't lose much oil until I caught it.

    Maybe I should put regular self-locking nuts on them?

    Mine are the type that has a nut with the washer behind it but I don't have the cones.
     
    Dino soar, Oct 3, 2020
    Dino soar, Oct 3, 2020
    #3
  5. Oct 3, 2020 #4
    Goodysnap

    Goodysnap Road Train Member

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    If they loosened I most certainly would use new locknuts. Though reuse is typical with no issues. Tighten in a star pattern just like a wheel. Hitting each nut atleast twice to be sure its torqued evenly.
     
    Goodysnap, Oct 3, 2020
    Goodysnap, Oct 3, 2020
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  7. Oct 3, 2020 #5
    spsauerland

    spsauerland Road Train Member

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    On the Meritor without locknuts, we always put blue threadlocker on the stud in the Army.
     
    spsauerland, Oct 3, 2020
    spsauerland, Oct 3, 2020
    #5
    Dino soar Thanks this.
  8. Oct 3, 2020 #6
    Dino soar

    Dino soar Road Train Member

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    What is on there right now they are not lock nuts they're just nuts with washers.

    I have a place near me that I can get the actual cone lock nuts I don't know if they have that exact thread in a cone or if they have it in a flange nut.

    Would either be okay and do I still use the washer?

    I did clean the nuts and the studs I could put threadlocker on them.
     
    Dino soar, Oct 3, 2020
    Dino soar, Oct 3, 2020
    #6
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