Needle Thread Clamp Device - JUKI AMS-221F-2516 Instruction Manual

5-2. Needle thread clamp device

A
When the memory switch U035 is placed in "disabled", the needle thread clamp device
will not operate. Every time THREAD CLAMP button
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
Needle thread
clamp device ON
Bird's nest
reducing device
ON
Both devices
OFF
* 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.
Sewing machine
type
S type
H type
G type
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
simultaneously with the bird's nest reducing device. ( Refer to
nest reducing device" p.19
Thread trimming
operation at the
beginning of
sewing sewing
ON OFF
OFF ON
OFF OFF
Thread clamp unit
type
S type 0 : S type (standard)
H type 1 : H type thin thread (standard)(#50
2 : H type intermediate (#20 to #5)
3 : H type thick thread (#5 to #2)
A. The thread clamp device cannot be used
for details.)
A is pressed, the status of the
When this device is placed in ON, stable sewing
performance is ensured at the beginning of sewing and
high-speed start is enabled.
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.
It becomes the same sewing start as conventionally.
Memory switch
U069
to #8)
– 17 –
"I-5-3. Bird's
U070
0 : Front
1 : Rear (standard)
0 : Front
1 : Rear (standard)