How To Use; Installation Of The Needle; Winding Of The Bobbin Thread - Mitsubishi Electric LY2-3310-B1T Instruction Manual

HOW TO USE

1 Installation of the needle

Insert the needle upto the bottom of
needle clamp and tighten the screw
keeping the long groove side facing
to the left.
Long groove
left side
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.

2 Winding of the bobbin thread

Adjustment ●Tension of wound thread
●Conically wound thread
●Amount of wound thread
Note: Before installing the needles, be sure to turn off the power.
Insufficient insertion
Gap
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
— 5 —
Both needles DP × 17 and
Needle distorted
DB × 1 can be used.
Use the timing marks as
shown in the figure.
Timing mark
for DB×1
Timing mark
for DP×17
Needle bar
Even winding
amount of 80%
of full capacity