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2
B
A
3
C
D
(1) Bobbin winder circuit protector
) When the bobbn wnder s operated, t sometmes
happens that thread 1 catches on somethng, pro-
ducng a force that tends to stop t from wndng ( A
drecton).
2) In such a case, to prevent the motor from burn-
ng out, crcut protector 2 operates to temporarly
break the crcut nsde the bobbn wnder, stoppng
the wnder.
1
(2) restoring the bobbin winder to operation
after it stops
1) First flip bobbin presser 3 n the drecton of arrow
B , then turn the bobbn wnder swtch OFF.
2) Remove the cause of the force that tends to stop
the thread from wndng.
3) Temporarily flip the circuit protector switch from po-
ston C to D , then return t to C .
4) Step 3) restores the crcut protector to ts orgnal
status. When bobbn presser 3 is flipped back to
the bobbn sde and the bobbn wnder swtch s
turned ON, the wnder resume operaton.
7
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