A To Handle Thread At The Start Of Sewing; B Adjustment Of The Thread Trimmer Device - Mitsubishi Electric LY2-3310-B1T Instruction Manual

HOW TO USE
A To handle thread at the start of
sewing
1 . In the case of open sewing:
When the needle thread is not held by the
presser foot during sewing, the end of the
needle thread is stitched onto the reverse side
of the cloth, thus enhancing a sewing finish.
Slowly start to take up a few stitches at the
beginning so as to prevent the needle thread
from being off out of the needle.
2 . When the needle thread is held by the
presser foot:
The end of the needle thread remains on the
surface of the cloth.
To stitch in this way, it is preferable to pull
out the sewn fabric to the other side of the
presser foot at the end of sewing.

B Adjustment of the thread trimmer device

1 . Configuration of the thread trimmer devise
Fixed knife bracket unit
Thread guide
Fixed knife
Movable knife (left)
Knife driving crank
2 . Precautions for adjustment
The LY2-3310 uses a thread trimmer drive system with a lower shaft cam. So if you turn the
machine by one revolution with the thread trimmer solenoid activated (i.e., with the roller located
on the cam follower crank ( 2 ) kept engaged with the thread trimmer cam), the movable knife (left)
will make contact with the needle, breaking the contacting parts.
Activate the built-in solenoid only when the normal thread trimming cycle is active (lower position
→ upper position).
Knife base unit
Thread trimmer cam
Coil spring
Knife driving shaft
Cam follower crank (1)
Cam follower crank (2)
Thread trimmer solenoid
Spring
Collar
Drive lever
— 9 —
Needle thread
Bobbin thread
Needle thread
Cloth
Thread trimmer solenoid unit
Flexible wire
Spring
Stopper
Stopper plate
Needle thread
Cloth