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5-2. Needle thread clamp device
By actuatng the needle thread clamp devce, trouble of sewng at the hgh-speed start (needle thread
slp-off, sttch skppng or needle thread stan) s prevented, and can reduce gatherng (brd's nest) of
needle thread on the wrong sde of cloth whle keepng stable sewng. When mountng the IP-410,
changeover of moton ON/OFF s performed wth
key.
When the needle thread clamp devce s OFF, the machne automatcally operates at slow-start.
When memory switch No. 35 is
: prohibited, the thread clamp does not work. In addi-
tion,
key is ineffective.
* Matters that demand special attention when using the needle thread clamp device
Refer to the lst below for the contents of memory swtches where the thread clamp unt can be set.
Sewng machne
type
Memory swtch
U69
U70
AMS-224EHS
0 : Extra thn thread type
1 : Thn thread (standard) (#50 to #8)
2 : Intermedate (#20 to #5)
3 : Thck thread (#5 to #2)
Front (standard) or
Rear
[regarding thread clamp unit]
Change the set value of memory swtch U69 accordng to the thckness of needle thread. The value has
been set to 1 : Thn thread at the tme of delvery.
Commendable value s Set value : 1 for thread count #50 to #8, Set value : 2 for thread count #20 to
#5, and Set value : 3 for thread count #5 to #2. (The value wll change n accordance wth the knd and
thckness of the actual thread and the knds of materals to be sewn. Set the value by adjustng to the
state of needle thread on the wrong sde of materals.) In addton, t s possble to select the thread
clamp poston by means of memory swtch U70. If the sewng materal s tucked n or set n at the be-
gnnng of sewng n case of usng thcker thread such as yarn count #5 to #2 or n any other occason,
select rear poston of thread clamp
by means of Memory swtch U70.
use the set value of the memory switch which is adjusted to the thread clamp unit type.
When the setting is wrong, the thread clamp fails to properly function. So, be careful.
