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  1. #21
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    C364 32-01 exit jam


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    Re: C364 32-01 exit jam

    Quote Originally Posted by mrfuser View Post
    ... ended up just replacing the entire exit assembly and it works fine now !
    If you replaced the assembly, do you recall if the new one was any different on the gate, or just on the actuator (using the A7PU890800 Holding Part modification on the solenoid actuator).

    The reason I ask: all of the fixes of this longstanding [at least: 4, 4e and 8 series] problem deal with the actuator, while the problem appears to originate in the exit gate fingers ("Guide Lever" A5C1890401). As noted in the attached pic, the exit curve is approximated by three straight segments, and jams seem to occur always at the inflection point between the first and second segment, which the leading edge of paper or cardstock hits. The 2mm stop on the solenoid plunger changes the angle of that second segment enough to make it more forgiving (a close compromise: adding much more to the stop would constrict entry to the exit assembly). Presumably the other mods do the same. [I have not studied how the A7PU890800 actuator mod actually works.]

    To summarize those fixes, in order of increasing hardware cost (and decreasing labor cost):
    1. 2mm solenoid plunger stop, introduced in 2016 via KBA01500433.
    2. Change in spring tension / modified spring, introduced in (?).
    3. A7PU890800 Holding Part, introduced in 2018, which modifies the solenoid actuator.
    4. A161R72644 Solenoid Assembly (original assembly modified with A7PU890800), introduced in 2018.
    5. A7PUR75400 Paper Exit Assembly.

    Is that last (5) the part number you used? Does it have a modification of the original Guide Lever to make the fingers curved, rather than straight line segments? - or does it just rely on the updated actuator to avoid jams?
    Attached Images Attached Images

  2. #22
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    Re: C364 32-01 exit jam

    I adjusted the upper and lower stop positions on the solenoid assembly to fix this issue on a C659.

  3. #23
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    C364 32-01 exit jam


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    Re: C364 32-01 exit jam

    Quote Originally Posted by Lync View Post
    I adjusted the upper and lower stop positions on the solenoid assembly to fix this issue on a C659.
    Adjust how, specifically?

    Still hoping mrfuser will respond to the question posed in post #21, about the guide lever fingers of the replacement exit assembly (p/n A7PUR75400).

  4. #24
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    Re: C364 32-01 exit jam

    Quote Originally Posted by John Kaufmann View Post
    Adjust how, specifically?

    Still hoping mrfuser will respond to the question posed in post #21, about the guide lever fingers of the replacement exit assembly (p/n A7PUR75400).

    Hi John,

    i have just taken the solenoid assemblies out of a C364 and a C659 and they are completely different. The C659 allows you to move the assembly back and forward whereas the C364 is fixed.


    C364.jpgC659.jpg

  5. #25
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    C364 32-01 exit jam


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    Re: C364 32-01 exit jam

    Quote Originally Posted by Lync View Post
    I have just taken the solenoid assemblies out of a C364 and a C659 and they are completely different. The C659 allows you to move the assembly back and forward whereas the C364 is fixed.
    C364.jpgC659.jpg
    Ah, nice! I see what you mean. It's an interesting design study (the C364 modified with the 2mm plunger stop, the return spring temporarily disconnected): With its heavier solenoid and spring, it's clear that the C659 is designed for faster and more positive operation. Given that willingness to spend more on the actuation, I would love to know how its guide lever fingers are shaped (curved or straight-line segments).

  6. #26
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    Re: C364 32-01 exit jam

    Quote Originally Posted by John Kaufmann View Post
    Ah, nice! I see what you mean. It's an interesting design study (the C364 modified with the 2mm plunger stop, the return spring temporarily disconnected): With its heavier solenoid and spring, it's clear that the C659 is designed for faster and more positive operation. Given that willingness to spend more on the actuation, I would love to know how its guide lever fingers are shaped (curved or straight-line segments).

    Here it is John

    C659 Reverse Assembly.jpgC659 Reverse Assembly 2.jpg

  7. #27
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    C364 32-01 exit jam


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    Re: C364 32-01 exit jam

    Quote Originally Posted by Lync View Post
    Great! - it's what I would hope for in any redesign of the exit assembly: generally smooth curve - more forgiving than the straight-line segments of lower-speed models like this:
    Gate jam problem.jpg

  8. #28
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    C364 32-01 exit jam

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    Re: C364 32-01 exit jam

    I replaced entire exit assembly and that fixed it

  9. #29
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    C364 32-01 exit jam


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    Re: C364 32-01 exit jam

    Quote Originally Posted by mrfuser View Post
    I replaced entire exit assembly and that fixed it
    Yes, that's what you said in post#20 of this thread. But the follow-up question was, How was the new exit assembly different? - just on the actuator side (which we know has changed), or also on the guide lever fingers (as Lync showed for the C659 in post#26). Given the observation in post#21 that:
    • (a) the guide lever fingers approximate the exit curve with three straight-line segments, and
    • (b) the jams occur where the angle changes between the first and second segments,

    the question is whether the replacement exit assembly also modifies the design of the guide lever fingers. Did you notice, or do you know?

  10. #30
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    C364 32-01 exit jam

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    Re: C364 32-01 exit jam

    Sorry, not sure I took it off a donor machine

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