Assembly; Thread Trimmer Mechanism (1) - Brother LK3-B430E Mark II Service Manual

5. ASSEMBLY

5-1. Thread trimmer mechanism (1)

During assembly, apply grease to the portions indicated by the white arrows.
u
i
y
t
!7
y
i
t
1. Insert the driving lever shaft q into the machine. Place the spring w, the washer e, the tension release
driving lever r, the thread trimmer driving lever t, and the cushion y on the shaft in this order.
2. Put the retaining ring u on the shaft. Press the thread trimmer driving lever t against the tension release
driving lever r. Tighten the set screw i on the screw flat.
3. Attach the oil cap o.
4. Insert the connecting rod lever !0 into the machine, lightly press the connecting rod lever shaft !1 against
the former, then secure them using the set screw ! 2 .
5. Attach the rubber cap ! 3 .
6. Tilt the machine head until it stops.
7. Pass the lever shaft ! 5 with the washer and the retaining ring, through the thread trimmer lever ! 4 , and
tighten the set screw !6 on the screw flat.
8. Attach the thread trimmer rod !7 to the thread trimmer lever !4 using the stud screw !8 and the nut !9 , and
also attach the connecting rod lever ! 0 to the thread trimmer lever ! 4 using the two washers 4.76 @ 0 , the
stud screw @ 1 and the nut @ 3 .
9. Attach the spring hook @3 to the inside of the machine, and connect the thread trimmer return spring @4 to
it.
10. Return the machine head to its original position.
q
w
o
r
e
!6
e
!4
!0
u
@0
r
!5
LK3-B430E Mark II
!0
@1
!8
!7
!9
@2
5. ASSEMBLY
!1
!2
@3
@4
!3
24