FRITSCH PULVERISETTE 1, Model I classic line - Manual (Page 29)

Page 27
6. Use a sharp object (Phillips screwdriver) to punch through the housing of the
main switch (4) in the threaded hole for the angled screw coupling so that the
cable of the funnel (A) can be run through.
7. Open the clip (Q) of the mains cable (5) and screw off the cable clamps (P).
8. Position the mains cable (5) vertically and screw in the angled screw coupling
(B or D). Because there is very little space here for screwing, it may be
necessary to move the mains cable (5). Screw in the angled screw coupling (B
or D) firmly until it stands vertically. Then press the removed collar back onto
the coupling.
9. Loosen and remove the blue cable link (X) with a Phillips screwdriver.
P
Q
Punch through