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Thread: Drive Axle Drum Brakes

  1. #31
    Join Date
    Mar 2013
    Location
    Chicago
    Posts
    1,772

    Default

    20171106_140303.jpg

    Totally disassembled, freed up all the clevis pins, put a new brake hose and number 16 service brake diaphragm.wire brushed everything degreased and brake cleaned the linings. Replace the Hub seal. 2 new brake return Springs drilled and tapped threaded holes in the hub. New grease fittings. Lucas hub oil and synthetic grease for the s cam and slack adjuster. Hit the spider and the back of the Hub with a lick of black paint.

    Happy hub. Not too shabby looking for a bunch of 30 year old stuff the only thing in that picture that's new r the brake return Springs and the seal.

    I could see some other nipple head shop recently had this apart and replaced the inner seal and the Hub oil and other than that the only other thing I saw that they got done right is set the bearing, the play in the hub was right. Thank God for that. They never touched any of this other stuff and it was staring them all right in the face. They put it back together filthy dirty, stuck, with brake linings all greased up, Drum and the Hub stuck together so they just pulled and replaced it that way.

    Good grief.
    Last edited by Joe Camper; 11-07-2017 at 11:35 AM.
    1990 Peterbuilt 377
    3406 B Caterpillar
    9 Speed Roadranger
    708 243 7871

  2. #32
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    2,211

    Default

    What a job!


    Gil and Durlene
    2003 H-3 Hoffman Conversion

  3. #33
    Join Date
    Mar 2013
    Location
    Chicago
    Posts
    1,772

    Default

    Hey man, standard procedure for old stuff. Expect going in everything is stuck and then find that to be the case. The days r short the temps r mid 40s but it is nice to be home for a while.

    Yo Gill, we aren't just pulling hubs exposing everything and just noting it.

    20171107_120307.jpg

    2, R 12 valves, the maxi exhaust port valve, new hoses. 2 left rear control valves, shocks. The picture is Old and new old and new.

    20171107_133228.jpg

    This is the brake relay, a R12 u all have 3 or 4. These were replacing 30 yr old original components.

    If the fitting feels bad I pitch it. Aero quip Is getting expensive. If it's on the bus I for sure clean it up and use it. Many chassis have, half and half,parker AND aeroquip, that's just wrong. I use these velvac brass 2 piece ends. Best value and quality for cost for any non aeroquip that needs replacing. Those velvac hose ends r in the picture above

    20171107_133215.jpg

    New chambers for the drive axle.

    Believe it or not Prevo has the 3036 brake Chambers that came on all chassis from 1985 to 2000 on backorder quickest time they can guarantee is a month.

    I got a source, ship them to you if you pay over the phone with a credit card $150, ship to your door. MAKE NOTE Piggyback style and 3030 diaphragm still nessessary, 10 bucks.
    Last edited by Joe Camper; 11-08-2017 at 12:17 AM.
    1990 Peterbuilt 377
    3406 B Caterpillar
    9 Speed Roadranger
    708 243 7871

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