Speedmaster unit pressure motor change out

Discussion in 'Heidelberg Printing Presses' started by old school 52, May 11, 2015.

  1. old school 52

    old school 52 Member

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    Hi,
    If I change out an inactive cylinder pressure motor on a Speed Master 52 will the motor recalibrate itself when powered up?

    Thanks
    Old School 52
     
  2. exheidmech

    exheidmech Senior Member

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    No, you need to confirm that the distance between blanket and impression cylinder is .35mm at bearer and check ring when on impression and sheet thickness is set to .10mm. If not, manually set to .35mm and make sure motor is set before mounting.
     
  3. aqazi81

    aqazi81 Senior Member

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    1 thing to add is when adjusting the pressure to 0.35, first set it to 0.40 and than finally to 0.35 +/- 0.01. This will eliminate the backlash error.
     
  4. exheidmech

    exheidmech Senior Member

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    This happens automatically with software. When increasing pressure it will move step by step, when decreasing pressure it will move past the selected pressure and move forward again to the selected pressure.
     
  5. aqazi81

    aqazi81 Senior Member

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    I forgot to mention, when setting manually before installing the motor.
     
  6. exheidmech

    exheidmech Senior Member

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    Good point!
     
  7. aqazi81

    aqazi81 Senior Member

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    Yup! I learned this from you.
     
  8. exheidmech

    exheidmech Senior Member

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    Well, its nice to know someone is reading my posts
     

  9. aqazi81

    aqazi81 Senior Member

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    I always do...
     
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