Thread Trimmer Mechanism - Brother LK3-B430E Mark II Service Manual

4. DISASSEMBLY

4-12. Thread trimmer mechanism

@2
w
@1
1. Remove the rubber cap q, loosen the set screw w, and remove the connecting rod lever shaft e.
2. Remove the oil cap r, loosen the set screw t, and remove the retaining ring y.
3. Remove the driving lever shaft u by pulling it in the direction of the arrow. Then remove the cushion i,
the tension release driving lever o, the washer ! 0 and the spring !1 from the shaft.
4. Tilt the machine head until it stops.
5. Remove the thread trimmer return spring ! 2 and the spring hook ! 3 .
6. Remove the nuts ! 4 and ! 5 , the stud screws ! 6 and ! 7 , and the two washers ! 8 .
7. Loosen the set screw ! 9 , and remove the lever shaft @ 0 and the thread trimmer lever @ 1 .
8. Return the machine head to its original position, and remove the connecting rod lever @ 2 and the thread
trimmer driving lever @ 3 .
23
e
q
!6
!9
!8
@0
!4
LK3-B430E Mark II
y
t
i
@3
!7
!2
!5
u
!1
r
o
!0
!3