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Thread: M123

  1. #11
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    Cool truck. Never seen one with paperclips on the front.

  2. #12
    2 Star General SCM35A2's Avatar
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    WOW, would love to visit there!!

  3. #13
    4 Star General 11Echo's Avatar
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    Quote Originally Posted by kubotaman View Post
    Cool truck. Never seen one with paperclips on the front.
    paperclips on this one also.
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  5. #14
    2 Star General fasttruck's Avatar
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    The fixture that mounts above the pintle is a shoe to guide the winch cable when raising and lowering the goose neck on the M870 trailer. A roller does the same thing on a M916. There would also be a goal post looking fixture installed behind the winch to keep the cable off the 5th wheel.

    The most important grease fitting on the whole truck is up between the left frame rail and the transmission which lubricates a bell crank in the linkage between the foot pedal and the applicator valve on the chassis. If this sticks the brakes will drag or the truck will not build air pressure. As it is hard to get to it is often neglected. Don't forget to check and maintain the oil level in the 4 bevel gear cases associated with the live king pins in the front axle. These parts are made of unobtainium.

    In later years the Army mwo'd a Williams Exhaust B rake for these trucks which finally made it possible to upshift the little dears before the truck rolled to a stop. I hope yours has one.

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  7. #15

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  9. #16
    2 Star General fasttruck's Avatar
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  11. #17
    4 Star General 11Echo's Avatar
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    A pic of the post.
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  13. #18
    2 Star General fasttruck's Avatar
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    I don't know what the stanchion illustrated in post 17 is but it not the guide described on post 14. That item was attached to an eye on the rear of the winch. I do not have a picture of this but it is not what is shown in post 17.

  14. #19
    2 Star General fasttruck's Avatar
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    Pic shows rear winch of M 123A1C (single winch). When configured for the M870 40 ton trailer the forward cable guide was attached to the eye visible beneath the winch cable next to the trailer electrical connector.M123 TEN TON 002.jpg870 PICKUP SHOE # 1.jpgAlso a pic of the shoe over the pintle that guided the cable and the front of trailer over the pintle hook.

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  16. #20
    Moderator WillWagner's Avatar
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    As far as the steering brakes go, the lever and buttons still move, did not try them when moving it for fear that something would stick or fail when it was in the middle of the compound. More work to be done on it at a later date, I will tinker with them then. I was under it for a bit hitting it with grease, I will double check the forgotten about linkage and make sure it gets love. The truck is a USMC unit, I believe it was recovered from pacific NW area, the data plates say M123A1C, but, it the army manuals we have at the Museum, show a few different items that this truck and the truck that was posted by 11echo. Paper clips on the bumpers and if you look closely in the pic 11echo posted, you can see an oval plate forward of the front drive axle, just in back of the deck plate, there is another just like it on the drivers side. Those are "diverters" to direct the exhaust smoke down. This truck has dual, low mount exhaust as does the one in the above pic. The Army A1C had an up exhaust pipe behind the cab.

    There is some sort of funky guide mounted on the deck plate, well, not mounted, it straddles the frame, has holes to secure it somewhere, but no matching bolts or empty holes anywhere on the truck. I'll see if I can find a pic of it and if I don't have one, i'll get some next week.

    I'd like to see one of these loading a tank to see how it's done and how all the stuff works together.
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