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Adjustment
12.
Scissor function test
05.15
12 - 34
Requirements
1. The threads must be cut neatly.
2. After being trimmed, the bobbin thread must be held securely by the thread trapper.
2
Fig. 12 - 32
Turn the machine on.
Sew a few stitches and turn the on/off switch off.
Activate the engaging lever by hand and close the post cover while ensuring that pressure
disk 1 is stuck into the post cap.
Bring the needle bar to TDC by turning the handwheel and open the post cover.
In this position the needle and bobbin threads must be held by the catching lug of bobbin
case 2 and the needle thread must be held by the catching lug of bobbin 3.
If the needle thread is not held, stick in a new pressure disk 1 ( part no. 91-119 492-91 ).
Turn the handwheel and observe the cutting process.
When the scissor is advancing, the thread trapper must first trap and hold the threads
on the scissor ( if necessary adjust the thread trapper as required after loosening
retaining screw 4 ).
3
4
1
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