Brother BAS-311E service manual Thread trimmer mechanism, Mechanical description, t yu i o

Chapter 1. Mechanical description

5. Thread trimmer mechanism

q

w

r e

t

yu

i

o

!1

!0

!2

!3

1.When the thread trimmer signal is on, the thread trimming solenoid q pushes the pushing lever driving lever w.

2.The pushing lever driving lever w pushes the thread trimmer driving lever r in the direction of the arrow, pivoting on the shoulder screw e. The pushing lever driving lever w slides along the driving lever shaft t.

3.The roller y attached to the thread trimming driving lever r fits into the groove of the thread trimmer cam u, and operates the thread trimmer rod i.

4.As the thread trimmer lever o is linked to the thread trimmer rod i, the connecting rod lever !0operates.

5.When the thread trimmer connecting rod !1linked to the connecting rod lever !0operates, the fixed knife !2and the movable knife !3fit into each other and perform thread trimming.

8 BAS-311E.311EL.326E.326EL