Replacing The Movable Knife And Fixed Knife - Brother LK3-B448E Instruction Manual

10. Adjustments

10-7-1. Replacing the movable knife and fixed knife

w
e
r
t
1. Open the large shuttle hook cover, remove the screw q, and then remove the feed plate w.
2. Remove the two screws e and the two screws r, and then remove the needle plate t.
3. Remove the thread trimmer connecting rod y from the connecting rod lever pin u.
!0
4. Remove the movable knife i and replace it with a
new one. At this time, check that the movable knife i
and the fixed knife o cut the thread cleanly. If necessary,
adjust by using the appropriate movable knife washer
!0 (supplied as accessories).
40
q
q
i
o
LK3-B448E MARK
t
y
o
5. Install the fixed knife o at a distance of 0.5 mm from
the needle hole plate ! 1 .
6. Place the thread trimming connecting rod y onto the
connecting rod lever pin u, and then install to the needle
plate t.
/BA-16
II
u
!1
0.5 mm