13 MA_560_A4_180619_en
3.2.2
By turning eccentric disc (1) on shaft (2) the movement of the needle lever is
set in a way that needle lever and thread take up move downwards
simultaneously.
Setting of the needle lever in relation to the thread take-up
(Fig. 5)
Then drill first borehole in sense of rotation, screw in threaded pin and check
loop stroke (see point “3.3 Loop stroke“).
Fig. 5
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