Sp15 Motor and Ink Drum Unit

On the sp15, the motor unit and ink drum are held under the press bed within a unit mounted on two pivots. Two springs create tension on the unit enabling it to spring back up after the impression cylinder has travelled over it. What I want to know is how ‘springy’ this assembly should be – an adjustable padded bracket on the non-operators side controls the amount of play this unit has: the higher the bracket is fixed, the smaller amount of spring the ink drum has.


John Christopher

4 thoughts on “Sp15 Motor and Ink Drum Unit

  1. john christopher - June 25, 2008

    Thanks Paul – fixed

  2. Paul Moxon, Moderator - June 25, 2008


  3. john christopher - June 13, 2008

    Thank you Paul – I had already assumed that was the case but it was worth checking.

  4. Paul Moxon, Moderator - June 12, 2008

    Not springy at all. There should be enough resistance that it takes a considerable effort to push the drum downward.

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