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Sewing machine
type
Thread clamp unit
type
Memory switch
U069
U070
S type
S type
0 : S type (standard)
0 : Front
1 : Rear (standard)
H type
G type
H type
1 : H type thin thread (standard)(#50
to #8)
2 : H type intermediate (#20 to #5)
3 : H type thick thread (#5 to #2)
0 : Front
1 : Rear (standard)
* Matters that demand special attention when using the needle thread clamp device
For the thread clamp unit, there are S type and H type in accordance with the sewing types. Refer the
respective types and the contents of the memory switches that can be set to the list below.
5-2. Needle thread clamp device
Stitch failures (slip-off of the needle thread, stitch skipping and needle-thread
stains) are prevented during the high-speed start procedure as well as
consistent sewing performance is ensured by operating the needle thread
clamp device. The needle thread clamp device can be turned ON/OFF with
THREAD CLAMP button
A
. The thread clamp device cannot be used
simultaneously with the bird’s nest reducing device. ( Refer to
for details.)
When the memory switch U035 is placed in “disabled”, the needle thread clamp device
will not operate. Every time THREAD CLAMP button
A
is pressed, the status of the
thread clamp device and bird’s nest reducing device is changed over as: Thread clamp
device ON - Bird’s nest reducing device ON - Both devices OFF.
Select one of the three different functions that you want to use at the beginning of sewing as shown in
the table given below.
The thread clamp device cannot be used simultaneously with the bird’s nest reducing device.
Thread clamp
operation at the
beginning of
sewing
Thread trimming
operation at the
beginning of
sewing
Needle thread
clamp device ON
ON
OFF
When this device is placed in ON, stable sewing
performance is ensured at the beginning of sewing and
high-speed start is enabled.
Bird’s nest
reducing device
ON
OFF
ON
When this device is placed in ON, the length of thread
remaining on the reverse side of material at the
beginning of sewing is reduced.
Both devices
OFF
OFF
OFF
It becomes the same sewing start as conventionally.
A
Содержание AMS-221F
Страница 1: ...INSTRUCTION MANUAL AMS 221F IP 500 ...
