21
ENGLISH
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. OPERATION
1. Attaching the needle
2. Setting the bobbin into the bobbin case
1) Pass the thread through thread slit
A
, and pull the
thread in direction
B
. By so doing, the thread will pass
under the tension spring and come out from notch
B
.
2) Check that the bobbin rotates in the direction of the
arrow mark
D
when bobbin thread
C
is pulled.
3) Securely insert the bobbin case into the hook until the
end of the hook is reached in the state that bobbin
thread is pulled out approximately 20 mm from the
bobbin case.
A needle of SCHMETZ UY180GVS should be used. Select
a proper needle size from among various sizes according
to the count of thread and the type of material used.
1) Turn the handwheel until the needle reaches the
highest point of its stroke.
2) Loosen needle clamp nut
2
, and hold needle
1
with
its indented part
A
facing exactly right in direction
B
.
3) Insert the needle fully into the hole in the needle bar in
the direction of the arrow mark until end
E
of the hole
is reached.
4) Securely tighten needle clamp nut
2
.
5) Check that long groove
C
of the needle is facing
exactly to the left in direction
D
.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
1
2
E
D
C
B
A
1
E
A
B
C
D
*
When the idling amount of the bobbin is excessive at
the time of thread trimming, raise idle-protection spring
1
in the bobbin case and adjust the idling amount
within the range where the sewing is not affected.
When waste thread or cloth dust
inltrates in section
E
(between bobbin
case and bobbin), unexpected sewing
trouble will be caused. Remove waste
thread or cloth dust gathered inside the
bobbin periodically when replacing the
bobbin or the like.
When sewing is performed in the state
that the bobbin case is not securely
inserted into the hook, unexpected
troubles may be caused. When setting
the bobbin case to the hook at the time
of replacement of bobbin or the like,
securely insert the bobbin case into the
hook until the end of the hook is reached.