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22. COUNTER KNIFE
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
[DDL-9000B-SS, -DS, -M ]
A
C
B
4 mm
❶
If the knife does not cut thread sharply, immediately re-sharpen counter knife ❶ as illustrated in Fig. C and
re-install it properly.
If the mounting position of the counter knife is moved in direction A from the standard mounting position,
1)
the thread length after thread trimming will be increased accordingly.
If the mounting position is moved in direction B, the thread length will be decreased accordingly.
2)
(Caution) When sharpening again the knife blade, extra special care must be taken on the handling of
the knife.
❶
A
B
– 19 –
[DDL-9000B-SH]
A
B
6 mm
B
A
A Moving knife
B Center of needle
❶
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