Brother LK3-B434E MKII Instruction Manual page 44

10-7-1. Replacing the movable knife and fixed knife
w
t
1. Open the large shuttle hook cover, remove the bolts q and 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.
!1
!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).
* Apply grease to the outside of the collar !1 at this time.
5. Install the fixed knife o at a distance of 0.5 mm from the needle hole plate ! 2 .
6. Place the thread trimming connecting rod y onto the connecting rod lever pin u, and then install to the
needle plate t.
q
t
e
r
i
o
LK3-B434E Mark II
10. STANDARD ADJUSTMENTS
u
y
o
!2
0.5 mm
38