– 20 –
5-2. Needle thread clamp device
By actuating the needle thread clamp device, trouble of sewing at the high-speed start (needle thread
slip-off, stitch skipping or needle thread stain) is prevented, and can reduce gathering (bird's nest) of
needle thread on the wrong side of cloth while keeping stable sewing. Needle thread clamp device
operates in the state that thread clamp display LED is lit, and does not operate when it goes off. When
mounting the IP-400, changeover of motion ON/OFF is performed with
key, and when mounting
the CP-20 , changeover of motion ON/OFF is performed with
key respectively. When the needle
thread clamp device is OFF, the machine automatically operates at slow-start.
When memory switch No. 35 is "1" (prohibited), the thread clamp does not work. In
addition,
and
key is ineffective.
* 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.
Memory switch
Sewing machine
type
AMS-210ESS
AMS-210ESL
AMS-210EHS
AMS-210EHL
Thread clamp unit type
S type
H type
U70
0 : Front (standard)
0 : Front (standard)
or
1 : Rear
[Regarding H type thread clamp unit]
Change the set value of memory switch U69 in accordance with the thickness of needle thread. The set
value has been set to 1 : H type thin thread at the time of delivery. Commendable value is Set value : 1
for thread count #50 to #8, and that is Set value : 2 for thread count #5 to #2. (The value will change in
accordance with the kind and thickness of the actual thread and the kinds of materials to be sewn.) Set
the value by adjusting to the state of needle thread on the wrong side of materials.
In addition, it is possible to select the thread clamp position by means of memory switch U70. When
using thick thread of thread count #5 to #2, and rolling-in or tucking at the start of sewing occurs, set the
set value to 1 : Rear and use the machine.
Use the set value of the memory switch which is adjusted to the thread clamp unit
type. (For S type thread clamp unit, the set value of U69 and U70 can use nothing but
only "0". When the setting is wrong, the thread clamp fails to properly function. So,
be careful.
U69
0 : S type (standard)
1 : H type thin thread (standard)
(#50 to #8)
2 : H type intermediate
3 : H type thick thread (#5 to #2)
Содержание AMS-210E-1306
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