file Jammed Model 349

4 months 4 days ago #5868 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    Thank you sir. I will plan in doing that in the next few days and report back. If anyone else has any other thoughts, please let me know.

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    3 months 3 weeks ago #5876 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    Struck out again. Took the printer type wheels off and the machine still sticks. I am somewhat hopeful in that the paid out key seems to have loosened up but the other 2 special keys are still cycling with a lot of effort. This was the same before and after removing the printer.

    Any other ideas?

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    3 months 3 weeks ago - 3 months 3 weeks ago #5878 by Lombard Illinois

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  • Replied by Lombard Illinois on topic Jammed Model 349
    Sounds like an oil issue still`.
    You need to explain in much more detail.
    Which key arms are working?
    Is it only the 3 specials?
    Is the printer WELL oiled?
    Did you pull the hollow brass shafts
    with the 1" wheels that print on the paper out and clean?

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    3 months 3 weeks ago #5880 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    What works:
    All currency keys plus no sale operate as they should. Smooth down and back up motion when keys are pressed.
    To a lesser degree, the paid out key work properly with minor sticking.

    What doesn’t work:
    Remaining 2 keys are still sticking. The left-most special key sticks the worst, followed by the middle and then the paid out that barely sticks.

    I removed all 4 of the type wheels/shafts and operated the machine. No change in what buttons were sticking. I cleaned and lubed them in put them back into the machine and still no change.

    So maybe it has to do with the counters or the cam that the special keys engage when pressed?

    I tried to record a video of what is happening.

    https://youtu.be/IGqSkNJwqTM

    Thanks again for the help

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    3 months 3 weeks ago - 3 months 3 weeks ago #5881 by Lombard Illinois

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  • Replied by Lombard Illinois on topic Jammed Model 349
    From memory.
    I think there is a small arm that is mounted to the special
    key arms and "U" hooks on to a counter?? when activated
    if this is out of alignment his could cause clunking.
    Or I have seen the key arm ends that stick up
    "opposite end" of the key checks, can be bent and rubs
    as it going up vertically. How ever the fact that
    only the specials are causing issues, you need to look
    at everything related to their operations.
    I cant remember what else to look for.
    I have not had a 300 special in my hands for a
    long time.
    Try another video straight down this time and closer.
    Something is still lacking oil??
    Other members know what your problem may be.

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    3 months 2 weeks ago #5883 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    I will try to get some more video of the operation this evening, I am realizing the lighting in my garage is horrible for recording video.

    I traced through the mechanism and still can’t see anything that is a smoking gun. Here is what I see about the mech.
    1. Each special key has a stud and a small arm to engage a special counter.
    2. The stud slides into a grove on an arm that rides on the lower cam. For the barn and hotel special keys, all this does is operate an arm that spins a type wheel on the printer. For the paid out, it also operates an arm that disengages the total adder. It looks like this may be another sleeved shaft that could be posing a problem, but it doesn’t look like it is supposed to move much so...
    3. When any of the special keys are pushed down, a little spring loaded foot kicks out to engage the bail and make it so a currency key also need to be pressed. This seems to operate smoothly.
    4. I have noticed for whatever reason, the paid out key arm is not connected to its special counter and the other special counters are fairly rigid. This may be a possible culprit.
    5. I checked the neckties in the back and nothing seems to be sticking.

    The only thing that I can think of would be to start removing the key arms to see if anything looks off. That is the only way that I can see to remove the special counters also.

    Any other ideas?

    I appreciate y’all entertaining my questions and helping me out with suggestions of possible solutions.

    Blake

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    3 months 2 weeks ago #5884 by Lombard Illinois

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  • Replied by Lombard Illinois on topic Jammed Model 349
    Not the neck ties.....
    The key arm bends or hinges up at a 90* and travels vertically.
    It goes up and down as it it pressed. Its 1/8" x 1/8" about 2" long.
    it is part of the key arm. Press any key arm. and you will see
    the hinged part of the key arm go up towards the ceiling.
    sometimes these get bent and rub against chassis and are
    are hard to push. Most likely not the issue but you should check it.
    Are the gears meshing perfectly?

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    3 months 2 weeks ago #5890 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    I understand what you are saying, on this machine the special keys do not have that vertical tail that sticks up. I am not sure about the gears meshing, I figure since it is operating smoothly without the special keys, it should be timed correctly.
    Attachments:

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    3 months 2 weeks ago #5891 by Lombard Illinois

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  • Replied by Lombard Illinois on topic Jammed Model 349
    Ok i forget the tail ends are not there.
    Still sounds like an oiling thing then...

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    3 months 2 weeks ago #5892 by PlaneGuy

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  • Replied by PlaneGuy on topic Jammed Model 349
    Yeah, I think you are right. I am just going to tear it down and clean and oil as I go. Hopefully when it goes back together the problem is fixed.

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