A cutting test should be carried out after presetting the regulating screw.
 The test is easily performed using a 1-2 mm thick strand of wool. To do  this, insert the strand of wool into the teeth on all three sides (left,  right and in the middle). If the lower part of the strand of wool falls  off, the cut is ideal. If some of the fibres on the woolen strand  remain hanging, improve the cutting ability by slightly tightening the  regulating screw (only turn 1/4 rotation at a time) to increase the  plate pressure.
 
 NOTE: 
 The regulating screw must only be tightened so far that the upper  cutting plate can still be moved from the side with the application of  only an average amount of pressure. Every clipper head has this standard  setting when it leaves our plant. If the strand is not crushed down or remains stuck between the two  cutting plates in spite of a maximum pressure adjustment with the  regulating screw, then a satisfactory cut will not be possible with the  clipper head. Professional sharpening at Aesculap Suhl or by one of our  authorised dealers will then be required.