22. CUNTER 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-SH]
6 mm
B
A
1
a
b
[DDL-9000B-SS, -DS, -M ]
1
4 mm
A
a
b
B
C
1
a
Moving knife
b
Center of needle
If the knife does not cut thread sharply, immediately re-sharpen counter knife
1
as illustrated in Fig.
C
and
re-install it properly.
1) If the mounting position of the counter knife is moved in direction
A
from the standard mounting posi-
tion, the thread length after thread trimming will be increased accordingly.
2) If the mounting position is moved in direction
B
, the thread length will be decreased accordingly
.
(Caution) When sharpening again the knife blade, extra special care must be taken on the handling of the
knife.
– 19 –
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