50
21.7 Needle height and hook-to-needle clearance (final adjustment)
Requirement: When the hook point reaches the left side of the needle, coming from the
right hand side, the top edge of the eye of the needle should be 1.0-1.2 mm
underneath the bottom edge of the hook (fig. 18).
Additionally, in this position, there should be a clearance of 0.1 mm between
the hook and the needle.
.1 Turn the handwheel until the point of the hook reaches the left hand side of the needle, coming from
the right hand side.
.2 Loosen the screws 22 (fig. 20).
Note: Do not turn the needle bar 23 when carrying out the following adjustment!
.3 Raise or lower the needle bar 23 so that there is a clearance of 1.0-1.2 mm between the top edge of
the needle eye and the bottom edge of the hook.
.4 Tighten screws 22.
.5 Check the adjustment.
.6 Check that the clearance between the hook and the needle (fig. 19) is 0.1 mm.
Alteration: see chapter 21.4.
To Next Page
Loading...
