Справочник Пользователя для Brother LK3-B448E

38

LK3-B448E MARK

II

/BA-16

0.01 - 0.08mm

Tip

Needle center line

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw 

w

and turn the eccentric shaft 

e 

to adjust so that the driver needle guard 

q 

contacts the needle.

If the needle contact pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard

q 

is not touching the needle, the tip of the inner rotary hook will obstruct the needle, resulting in an excessively high

amount of friction.

Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw 

q 

and

turn the eccentric shaft 

w 

to adjust so that the clearance between the needle and the rotary hook is 0.01 - 0.08 mm.

Install the shuttle race thread guide 

q 

by pushing it in the direction of the arrow so that the needle groove is aligned

with the center of the needle plate hole.

If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur.

w

e

w

q

e

r

q

q