– 125 –
1-7. thread breakage detector plate
1
2
3
1) 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
.
When polyethylene oler
1
becomes filled with oil,
remove polyethylene oler
1
and dran the ol.
1-8. Draining waste oil
1