Adjustment
14 - 37
6
4
5
7
8
11
Fig. 14 - 35
9
10
2
1
1.0 mm
● Engage the stop motion device.
● Bring the machine into the left buttonhole seam position.
● Loosen screw 4 and push plunger 5 in the clamp eye 6 up as far as possible.
● Tighten screw 4.
● Turn the control cam by turning the handwheel until the plunger 5 is fully in use.
● Loosen nut 7 so that there is a clearance of 1 mm between screw 8 and the housing.
● Continue turning the handwheel until the plunger 5 begins to drop and screw 8 is tou-
ching the housing.
● Loosen screw 9 and move the disengaging rod assembly 10 so that the tension 1 is
opened by a minimal movement of the lever 11.
● Tighten screw 9.
14.14 Needle thread tension
Requirement
1. The tension 1 must remain open for approx. 3 stitches when starting sewing.
Before beginning the first bartack the tension 1 must also be open for 3 stitches.
2. The tension 2 must be open for a minimal movement of the lever 3.
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