Knife getting harmed by Polar emc 137 itself

Discussion in 'Cutters and Trimmers' started by Mouad, Mar 5, 2021.

  1. Mouad

    Mouad Member

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    Dear all,
    Lately, my Polar emc 137 is damaging every knife we put in place after less than 2 hours of functioning. (see picture attached below)
    Please advise :)
    WhatsApp Image 2021-03-05 at 17.05.47.jpeg
     
  2. CHOCK

    CHOCK Senior Member

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    Hi sir;

    Please this make inspection first before to find the source of problem with the Knife;

    1) knife carrier and the clamp Should be checked

    2) attached is the there the Polar cutting in practice, that will Help you a LOT, and finding the problem

    3) However you must use some Square between the knife vs table in angle 90. and between Knife vs Knife Carrier.

     

    Attached Files:

  3. Mouad

    Mouad Member

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    Thank you CHOCK for your prompt feedback,
    I have checked your points, what do you think of the parts 224910 & 224904 (adhesive shim and support)?
    they could be the origine of my issue?
    WhatsApp Image 2021-03-08 at 09.46.46.jpeg
     
  4. andy martin

    andy martin Member

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    It would appear to me the evidence is in your photo, the scoring on the clamp shows the knife is hitting the clamp, is the clamp beam set correctly and replace knife deflection guides
     
  5. Mouad

    Mouad Member

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    Hi Andy Martin,
    We have just ordered the knife deflection guides we will replace them,
    but please could you tell us how to set correctly the clamp beam?
    Thank you in advance for your feedback
     
  6. andy martin

    andy martin Member

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    Check if there are shims, if not use shims to move clamp back slightly
     

    Attached Files:

  7. CHOCK

    CHOCK Senior Member

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    I would like to remind you of my advice to examine very carefully the knife carrier vs clamp.

    1) i did send you a complete from Polar , you must examine carefully.+screen shot from Polar attached again

    2) I do believe that safety bolt has been are breaking. if this had been pass the connecting Rod is wrong adjusted or bending in the crank shat!!

    3) Again please examine, this matter very carefully!!! otherwise you must replace expensive parts from Polar.
     
  8. Mouad

    Mouad Member

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    Thank you very much Mr Chock for your concern, could you please send again a more clear attachment, because the one you already sent is not clear, in addition, what do you say by safety blots, where are they located?
     
  9. Mouad

    Mouad Member

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    Dear Andy Martin, please show me where could I put the shims on the picture
     
  10. rspblake

    rspblake Member

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    I would think it’s more likely it’s hitting the removable soft Plate under the clamp probably been hit by the backguage and pushed the pins holding the plate fwd.
    Remove damaged knife and soft plate
    Then with a sanding block just clean high points just on bottom edge of clamp beam or a flat file
    Check pins on clamp plate with a set square, if ok then run a file over the front lower edge of soft plate
    If everything is fine then check the rear face of the knife beam the area where the knife sits for high points or old waste paper stuck..
    I can explain if it’s not obvious How!!
    I’ve worked on machines with plastic support missing and they been fine don’t think I’ve ever had to add shims unless you don’t know the machines history then anything possible
    Regards
    Rob
    Repro-link
     

  11. CHOCK

    CHOCK Senior Member

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    Did you fix it Sir?

    Let me know.
     
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