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Adjustment
14
Needle thread tension release
.34
14 - 36
Requirement
With the thread catcher at its rear point of reversal, finger 3 must be engaged and there
must be a clearance of 0.5 mm between the finger and the control cam 4.
With the tip of the finger 3 at the highest point of cam 4 the tension discs must be at least
0.5 mm apart.
5
6
0.5 mm
Fig. 14 - 34
Fully retract the cylinder plunger 5 by hand.
By turning screw 7 (nut 6) create a clearance of 0.5 mm between the finger 3 and the
control cam 4.
Lower the presser foot onto the needle plate using the presser bar lifter.
Pull the pull rod 2 (screw 1) downwards as far as it will go and secure it into place.
3
7
4
3
4
2
0.5 mm
1
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