– 07 –
1-7. Needle thread clamp device
WarNING :
turn oFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
1-8. thread breakage detector plate
) Adjust so that thread breakage detector plate
1
s always n contact wth thread take-up sprng
2
n the absence of needle thread. (Slack :
approx. 0.5 mm)
2) Whenever the stroke of thread take-up sprng
2
has been changed, be sure to readjust
thread breakage detector plate
1
. To make
ths adjustment, loosen screw
3
.
adjust so that thread breakage de-
tector plate
1
does not touch any
adjacent metallic parts other than
thread take-up spring
2
.
2
3
1
When thread s caught at top end
1
of the thread
clamp, thread clamp becomes ncomplete and
sewng trouble at the sewng start wll be caused.
Thread waste and lnt are lkely to accumulate n
the sectons whch are shown n the crcles. The
sectons should therefore be perodcally cleaned
by removng the throat plate and by blowng ar
through hole
3
by removng rubber plug
2
.
1
2
3