9
BAS-311E.311EL.326E.326EL
Chapter 1. Mechanical description
6. Thread nipper (1) when presser foot rises
1. When the machine stops, the stepping solenoid
q
operates, and the presser foot rises as soon as the work clamp rises.
2. The stepping solenoid
q
operates the lifter lever
w
, and the work clamp lifter lever assy
e
via the work clamp lifter
wire
r
.
Thread nipper (2) during thread trimming
1. When the thread trimming signal is on and the thread trimming solenoid operates, the thread trimmer driving lever
q
is pushed in the direction of the arrow.
2. The thread trimmer driving lever
q
moves the tension release lever
e
via the tension release rod
w
.
3. The tension release lever
e
pushes the tension release bar
r
.
4. The end of the tension release bar
r
pushes the pin
t
and the tension disk opens
y
.
w
q
e
r
r
w
q
e
y
t
r