Question for the old timers

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Flat Earth Trucker, Nov 10, 2019.

  1. Oxbow

    Oxbow Road Train Member

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    Yep. My 89 has valve behind the bumper to do just that. Ex logger.
     
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  3. 201

    201 Road Train Member

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    That front brake cutout was pretty popular years ago. Lot's of older trucks had that. The reasoning there, is you were, theoretically, better able to prevent a jack knife with the front wheels turning and I believe that's true. My '72 Pete didn't have front brakes, I went 'round and 'round with a rookie Wisconsin DOT officer, who was adamant that every wheel needed brakes. I politely told them, not if it wasn't original equipment, "wait right here, driver",,, hm,hm, hm,, they come back, "take it away, driver",,,man, that felt good.:biggrin_25522:
     
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  4. jamespmack

    jamespmack Road Train Member

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    @Oxbow had seen the extra trolly used to control a air axle from cab on trailer and for steer brakes on. Anyone running really air cheater axles put them down beside the seat so they were hard to see.


    I wont get into the how to use a clutch conversation.
     
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  5. jamespmack

    jamespmack Road Train Member

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    Some how I poorly proof read that. We had some wrecks with trolly for steers for straight line winching. Later to just have on/off switch. That extra couple tires locked down really could make a difference sometimes.
     
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  6. Oxbow

    Oxbow Road Train Member

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    Fella I used to work for in recovery work converted a tank retriever into an off road recovery vehicle. Had a big old gas powered Leroi engine as I recall. Anyway, he put a brake lever on each side of the steering column for steering brakes, and that thing needed them.
     
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  7. starmac

    starmac Road Train Member

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    Yea, the switches I am talking about were factory, and just switched the air off, so the steer axle brakes couldn't be used.
    We still run in cab switches for our lift axles.
     
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  8. okiedokie

    okiedokie Road Train Member

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    STARMAC
    I have never heard that one, I do not know what it was called and sure never drove one, but Mack built a 3 stick rig at one time.

    Tri plex. Drove a Mack dump truck pioneering log roads.
     
    Last edited: Nov 11, 2019
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  9. starmac

    starmac Road Train Member

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    Duh, I knew mack had the triplexes, should have put them together. lol
     
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  10. Hammer166

    Hammer166 Crusty Information Officer

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    The "Tri" in Triplex referred to how many gears the Mack auxiliary had in it, not a third stick. Same for the Duplex and Quadra plex, they were 2 and 4 speed aux respectively.

    The third stick was only there on trucks with second auxiliary tranny behind the others.
     
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  11. starmac

    starmac Road Train Member

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    Gotcha, I have only seen a couple of trucks with the 3 sticks, and they were old, at least one of them was an old LT I think is what it was called.
     
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