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2.11 Thread scissors
1
5
4
To replace and adjust the blades, dismantle the tread scissors.
Caution! Risk of injury!
Before dismantling the thread scissors, switch off the main switch.
Dismantling of thread scissors
–
Swivel machine head to the left.
–
Pull out hose 1.
–
Unscrew screws 2 and 3, remove thread scissors and disconnect
the hoses 4 and 5.
Installation of thread scissors
–
Connect hoses 4 and 5.
–
Insert thread scissors carefully and tighten screws 2 and 3.
The hook-shaped blade of the thread scissors must run at the
centre of the slot in the throat plate!
–
Connect hose 1.
Operational test of thread scissors
The functioning of the thread scissors can be tested by pressing key
"1" at the operating panel.
–
Pull needle and bobbin threads to the left.
–
Press key "1" at the operating panel.
The thread scissors are lifted for a short moment.
–
Pull needle and bobbin threads through the gap below the thread
scissors.
Both threads are cut and then held by the blades.
3
2
3-15
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