1
Installation of the needle
Note: Before installing the needles, be sure to turn off the power.
HOW TO USE
Insert the needle upto the bottom of
needle clamp and tighten the screw
keeping the long groove side
facing to the left.
Insufficient insertion
Needle distorted
Gap
Long groove
left side
Timing mark
for DB×1
Timing mark
for DP×17
Needle bar
Note：If thread snapping occurs during reverse sewing with
polyester threads, it may be avoided by fitting the needle
with the long groove shifted to the front side. Normally,
avoid fitting the needle with the groove facing backward.
Both needles DP × 17 and
DB × 1 can be used.
Use the timing marks as
shown in the figure.
2
Winding of the bobbin thread
Note: When bobbin thread is wound, keep the presser foot lifted.
Adjustment ●Tension of wound thread
Slack winding is recommended for polyester thread and
nylon thread.
●Conically wound thread
Move the thread guide toward smaller diameter of wound
thread layer.
●Amount of wound thread
Loosen the winding amount adjustment screw to decrease
thread winding amount and tighten the screw to increase
thread winding amount.
Winding tension
adjustment nut
Even winding
amount of 80%
of full capacity
Winding amount
adjustment screw
Thread guide
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