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  1. #11
    Service Manager 10,000+ Posts
    Riso FR3950 problem

    Phil B.'s Avatar
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    Re: Riso FR3950 problem

    Quote Originally Posted by nervously View Post
    I do have the service manual. But as I said, the three little hexagon bolts were just too tight. I already bent the allen key and using mkre force would have destroyed the scree thread.
    But there really is no old ink clogging inside. I know that, because the drum was blue at first and had the same oattern as it has now that it is pink. Furthermore the pattern is the same on ALL of my drums It would be strange, if the ink would clog the same way in all drums, wouldn't it?
    Having being trained on the Ricoh dups ( same as riso and standard ) 1) it is veggie based oil NOT petro based. 2) those units take longer to service *most calls* -=if=- done properly. Simple Green cleaner cleans veggie oils..sharpie marks... ink pen. YOU MUST TAKE YOUR TIME on service calls. They are NOT like a laser based form. Very MESSY and very time consuming... but fuck YOU'RE THE FUCKING EXPERT.. MY 31+YEARS DON'T MEAN SHIT...
    h

  2. #12
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    Re: Riso FR3950 problem

    Sorry man, I didn't mean to insult your expertise. I'm a newbee in the riso world and it is just a hobby for me.

    But I read o another thread that people use anything from diesel, wd40 to petrol to clean the drums. And I have to say that the turpentine really did dissolve the dried ink.

    Nevertheless I'm going to look for Simple Green... Hopefully I can buy it somewhere over here.

    And for the tight hexahon bolts .. Do you have a tip? Shall I use Wd 40 ob them? Because I really cannot loosen them.




    Quote Originally Posted by Phil B. View Post
    Having being trained on the Ricoh dups ( same as riso and standard ) 1) it is veggie based oil NOT petro based. 2) those units take longer to service *most calls* -=if=- done properly. Simple Green cleaner cleans veggie oils..sharpie marks... ink pen. YOU MUST TAKE YOUR TIME on service calls. They are NOT like a laser based form. Very MESSY and very time consuming... but fuck YOU'RE THE FUCKING EXPERT.. MY 31+YEARS DON'T MEAN SHIT...
    h

  3. #13
    Service Manager 10,000+ Posts
    Riso FR3950 problem

    Phil B.'s Avatar
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    Re: Riso FR3950 problem

    Quote Originally Posted by nervously View Post
    Sorry man, I didn't mean to insult your expertise. I'm a newbee in the riso world and it is just a hobby for me.
    But I read o another thread that people use anything from diesel, wd40 to petrol to clean the drums. And I have to say that the turpentine really did dissolve the dried ink.
    Nevertheless I'm going to look for Simple Green... Hopefully I can buy it somewhere over here.
    And for the tight hexahon bolts .. Do you have a tip? Shall I use Wd 40 ob them? Because I really cannot loosen them.
    PETROL BASED cleaner can EAT PLASTIC! THAT'S WHY all service manual specify where things like that can be used...

    stuck bolts/nuts PB BLASTER... i don't use WD40 for shit! much better products on the market...
    for lube use TRIFLOW 'Teflon infused'

  4. #14
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    Re: Riso FR3950 problem

    From what I remember Riso put a dab of Loctite on those 3 screws, have you tried tightening the screw a hair to break the seal? Or tap the allen wrench with a hammer to break the seal... I never had one of those screws break so I wouldn't worry about that (but there is always a first). The true L shaped wrench will work better than a multi tool one with all the sizes attached.

    Hope this helps but you are working on a dinosaur there...

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