16. Adjusting the lateral clearance to the right needle
Requirement:
When the upper overedge looper is at its left point of reversal, the distance from the looper eye to the
right needle must be 4.7 to 5.0 mm (figure 30).
Check:
● Turn the handwheel in the normal direction until the upper looper is at its left point of reversal.
● Check the clearance with the aid of the adjustment gauge (measurement C).
Setting:
● Turn the handwheel in the normal direction until the upper looper is at its left point of reversal.
● Slightly loosen the fastening screw 13 (figure 31).
● Move the looper drive arm 12 until the clearance between the center line of the looper
eye and the right needle is 4.7 to 5.0 mm.
● Tighten the fastening screw 13.
Test:
● As described under “Requirement”.
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