14. Setting the lateral clearance to the right needle
Requirement:
When the needle bar has moved 4.1 mm upwards from its lowest position (lower dead center), the loo-
per point 4 must be positioned as shown in figure 27.
Check:
● Move the needle bar to its lowest position by turning the handwheel.
● Place the adjustment gauge No. 93-415 503-21/555 in the needle bar bush 9.
● Turn the handwheel in the normal direction until the adjustment gauge (measurement D)
has moved almost “seven graduations” upward.
Graduation spacing = 0.6 mm x 6,83 = 4.1 mm
The looper point 4 must now be positioned on the edge of the left needle.
Setting:
● Move the needle bar to its lowest position by turning the handwheel.
● Loosen the screw 7 of the looper lever 8 slightly (figure 28).
● Set the lateral clearance of 4.1 mm by pushing the looper lever.
● Tighten the screw 7 of the looper lever 8.
Test:
● As described under “Check”.
● The looper-to-needle clearance must checked or reset, as described under section 13
in the adjustment and repair instructions after having set the lateral clearance.
32
To Next Page
Loading...
Need help?
General
