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Servicing steering axle hub

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dino soar, Sep 9, 2019.

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  1. Sep 9, 2019 #1
    Dino soar

    Dino soar Road Train Member

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    I'm getting ready to put brakes and cams on the front of my truck and I'd like to service the steering axle hubs.

    I began looking through the Meritor service manual and they show a unitized hub and a conventional hub. How can I tell which I have before I take it apart?

    What oil does that Hub take?

    This is for a 1995 Freightliner fld120 with a Rockwell front axle.
     
    Dino soar, Sep 9, 2019
    Dino soar, Sep 9, 2019
    #1
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  3. Sep 9, 2019 #2
    Snailexpress

    Snailexpress Road Train Member

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    Part number should be on the hub, look by #
     
    Snailexpress, Sep 9, 2019
    Snailexpress, Sep 9, 2019
    #2
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  4. Sep 9, 2019 #3
    WrenchWrenchWrench

    WrenchWrenchWrench Light Load Member

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    last 6 of the vin?
     
    WrenchWrenchWrench, Sep 9, 2019
    WrenchWrenchWrench, Sep 9, 2019
    #3
  5. Sep 9, 2019 #4
    Goodysnap

    Goodysnap Road Train Member

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    Conventional bearings will be oil bath style hub cap. Unitized hub is a sealed bearing and is not serviceable and only replaceable as a unit.
     
    Goodysnap, Sep 9, 2019
    Goodysnap, Sep 9, 2019
    #4
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  7. Sep 9, 2019 #5
    Dino soar

    Dino soar Road Train Member

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    What weight oil should go in there?
     
    Dino soar, Sep 9, 2019
    Dino soar, Sep 9, 2019
    #5
    Rideandrepair Thanks this.
  8. Sep 9, 2019 #6
    stayinback

    stayinback Road Train Member

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    Ol Gordon packs his bearings in bulk grease by hand the old fashioned way,before he puts it back together,then puts in whatever 80/90 75/140 whatever's on sale at the time

    I've used lucas.....no issues
     
    stayinback, Sep 9, 2019
    stayinback, Sep 9, 2019
    #6
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  9. Sep 9, 2019 #7
    stayinback

    stayinback Road Train Member

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    What's wrong with the cams? New bushings and seals or the whole cam too?
     
    stayinback, Sep 9, 2019
    stayinback, Sep 9, 2019
    #7
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  10. Sep 9, 2019 #8
    Dino soar

    Dino soar Road Train Member

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    Everything new.

    New brakes new drums new cams and bushings new slack adjusters.

    The service Chambers look good so I'll put diaphragms in them. The back has all new everything also including new brake Chambers.

    It's just exactly the truck I always wanted, but it amazes me what people mechanically let go.
     
    Dino soar, Sep 9, 2019
    Dino soar, Sep 9, 2019
    #8
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  11. Sep 9, 2019 #9
    Goodysnap

    Goodysnap Road Train Member

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    75-90 or 140 will work fine. I usually run whatever is in the diffs to keep things simple.
     
    Goodysnap, Sep 9, 2019
    Goodysnap, Sep 9, 2019
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  12. Sep 9, 2019 #10
    Collie

    Collie Guest

    New chambers in the rear? Why not put new ones up front too? Springs get weak and things rust by the time its time for new diaphram. I just replaced all of mine as well at the same time. Fronts are like 30 bucks. Heck you are putting new cams in. Those cost more. Why you putting new cams in? Those should be good for over a million miles
     
    Collie, Sep 9, 2019
    Collie, Sep 9, 2019
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