C Adjustment Of The Gap Between The Pulley And The Machine Head - Mitsubishi Electric LY2-3310-B1T Instruction Manual

HOW TO USE
8 . Adjustment of the needle thread tension release
( 1 ) With the thread trimmer solenoid activated,
adjustment should be such that the thread
tension discs located on the needle thread
tension regulator are separated from each
other by about 1 mm.
( 2 ) Adjustment can be done in this way:
Loosen nut Ⓐ and properly move the
flexible wire.
( 3 ) Move the flexible wire to the right to
increase the opening amount.
Note: If the thread tension discs are too
narrowly, the needle thread may
be liable to be broken, resulting in
detached needle thread. Also, if the
space between the discs is too wide, the
excessive blank space between the discs
may result in loose stitches.
9 . Adjustment of the needle thread remaining
length
( 1 ) The length of remaining thread can be
adjusted by turning tension regulating nut
Ⓐ as follows:
Clockwise → Short in length
Counterclockwise → Long in length
C Adjustment of the gap between
the pulley and the machine head
The detector's reflection plate is installed on the
inner side of the pulley.
So a correct distance must be kept with the
detector body.
The gap between the pulley and the machine
head must be 6.5 mm.
Loosen
Adjusting tool
(Enclosed in the
accessary box)
— 12 —
Thread trimmer solenoid
Increase the
opening amount
Ⓐ
Flexible wire
1 mm
Tighten
Pre-tension nut
Detector body
Pulley
6.5 mm