HOW TO USE
1 Installation of needles
Insert the needle upto the bottom of needle
clamp and tighten the screw keeping the
long groove side of needle face to face
Long grooves are opposite
2 Winding of the bobbin thread
Adjustment ●Tension of wound thread
●Conically wound thread
●Amount of wound thread
From the library of Superior Sewing Machine & Supply LLC - www.supsew.com
Note: Before installing the needles, be sure to turn off the power.
Insufficient insertion
Note: When bobbin thread is wound, keep the presser foot lifted.
Slack winding is recommended for polyester thread and
nylon thread.
Move the thread guide toward smaller diameter of wound
thread layer.
Loosen the winding amount adjustment screw to decrease
thread winding amount and tighten the screw to increase
thread winding amount.
Winding tension
Thread guide
adjustment nut
Winding amount
adjustment screw
— 3 —
Needle distorted
Gap
Even winding
amount of 80%
of full capacity