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V. PREPARATION OF THE SEWING MACHINE
1. HOW TO OPERATE THE SEWING MACHINE HEAD
(1) How to attach the needles
CAUTION
:
• Turn OFF the power before starting the work so as to prevents accidents caused by abrupt start of
the sewing machine.
• When replacing the needle, be careful not to allow your fingers to touch the blade section of the
center knife.
❷
❷
(2) Thread used
Right hand twist thread
Left hand twist thread
(3) How to pass the needle thread
CAUTION
:
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
B
A
❶
Needles used are DP X 17 #14 to #18 (standard
#16). Use the specified needle.
Insert left- and right-hand sides needles as far as
❶
they will go pointing their long grooves ❶ at each
other and tighten needle clamp screws ❷ .
• Use the left hand twist thread for the needle
• Either twist thread will do for the bobbin thread.
① Lift binder ❶ in the direction A, Hold section B
C
− 14 −
thread.
Use a new thread which is uniformly
twisted.
by hand and turn the whole binder in the direc-
tion C.
Be sure to press section B since welt-
ing width may become improper when
the binder is pressed and turned in the
direction C.
Binder is locked with the ball plunger.
Rather strongly turn the binder in the
direction C to release the lock.
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