Thread Trimmer Mechanism (1) - Brother BAS-311E Service Manual

Chapter 3. Assembly
Chapter 3. Assembly

1. Thread trimmer mechanism (1)

t
y
r
e
!5
r
y
e
1. Insert the driving lever shaft q into the machine. Place the spring w, the thread trimmer driving lever e, and the
cushion r on the shaft in this order.
2. Put the retaining rings t on the shaft. Press the thread trimmer driving lever e against the retaining rings t. Tighten
the set screw y on the screw flat.
3. Attach the oil cap u.
4. Insert the connecting rod lever i into the machine, lightly press the connecting rod lever shaft o against the former,
then secure them using the set screw !0 .
5. Attach the rubber cap !1 .
6. Tilt the machine head until it stops.
7. Pass the lever shaft !3 with the washer and the retaining ring, through the thread trimmer lever !2 , and tighten the set
screw !4 on the screw flat.
8. Attach the thread trimmer rod ! 5 and the connecting rod lever i to the thread trimmer lever ! 2 using the washer ! 6 ,
plain washer 4.37 (t=0.8) !7 , washer 4.76 (t=0.5) !8 , the stud screw !9 , and the nut @0 .
9. Attach the spring hook @1 to the inside of the machine, and connect the thread trimmer return spring @2 to it.
10.Return the machine head to its original position.
11.Fit the thread cutter connecting rod @3 on connecting lever pin @4 , and install needle plate @5 using the flat screws @6
and screws @ 7 (First tighten the flat screws @ 6 and screws @ 7 ).
26
q
w
u
!3
t
!2
i
!8
!7
BAS-311E.311EL.326E.326EL
@7
i
!0
!5
!9
!6
@0
!4
@3
@6
@5
o
@4
!1
@1
@2