Klischograph K 151 (1951) Restoration in April 2017






The first problems to be solved are very obvious:

- The 3-phase power supply:
        The plugs and the color of the cores do NOT meet today's standards
        This problem was solved quickly 
- The V-belts of the main drive are defective:
        Surprisingly, V-belts of this size can still be obtained as a standard

 - The engraving head:
The stylus holder is broken, the gliding foot is bent
K151 Gravierkopf offen  
The company Hell Gravure Systems provides us with a stylus holder
on loan, which is available by their own  K151.
The gliding foot can be bent straight.
The first test:
The engraving head is in the raised position.
We have removed the V-belts for the head feed.
Switching on the machine by the main switch:
   Household fuse do not switch off
   The tubes in the power supply glow
   It does not smell
Everything seams to be good!
We set the control switch to "Cliché": the engine is running!
The engraving table moves ... but only once in one direction until the "reversing switch"
Thus, we first inspect and oil the reversing gear:
K151 Wendegetriebe 1    K151 Wendegetriebe 2     K151 Wendegetriebe 4    
However, no improvement
In the course of further tests we find that both the entire engraving unit (the rigidly
connected upper and lower parts) has been lowered as well as the switching pins
of the reversing switches have to be adjusted.
K151 Lichtquelle Tischkontrolle   K151 Tischkontrolle   K151 Tischkontroolle Justierung     
Once again check everything, power on, Engraving on:
The engraving table moves back and forth.
The clamping of the two V-belts for the engraving head feed is quickly completed,
one more test run:
       Also the engraving arm moves as expected above the engraving table.
The mechanics thus seems to be fully functional.
However, what' s about the optics, the amplifier system and the engraving magnets??
The test is carried out quickly:
The control switch is set to black / white, the scanning lamp is lit, the amplifier
recognizes a black and white original, the pointer of the instrument moves to the
mark for black and white.
      Everything fine???
An engraving stylus is inserted, an original is placed in the plate holder, the plastic
plate is clamped in the frame, the engraving head is placed very carefully and it starts ...
     Great, every thing is fine!!!
  After more than 30 years of downtime, the K 151 engraved its first cliché
     We would like to thank Mr. Teickner, 60 years ago having maintained these
      devices as employee of company Hell, who despite his old age supported us
              many hours as an instructor and master in this restoration work.