Jack C4 - Adjustment of Upper and Lower Cutter

Maintenance instructions
12. Adjustment of upper and lower cutter:
The upper and lower cutter and the needle plate plane are
preferably parallel, the left and right location are subject to
the upper cutter, the upper cutter is subject to the width of
and the range of bite is 0.5-1mm.
0.5-1mm
lower
cutter
Upper
cutter
Needle plate plane