Tension Release Mechanism - Brother S-710A Service Manual

4. MECHANICAL DESCRIPTIONS

4-7. Tension release mechanism

When a thread trimming
signal is input
5
Tension release plate
6
Tension release stud
7
Pin
5
Tension
release plate
6
Tension release stud
Tension release
stud
Pin
13
9
Discs
8
Disc presser
1650M
4
Tension release wire
Discs
Disc presser
1651M
1
Thread trimmer
solenoid
3
Solenoid lever
2
Bolt
Seen from underneath
1
Thread trimmer
solenoid
2
Bolt
When raising the presser foot using a knee lifter or knee switch
3
Tension
release plate
2
Presser bar
lifter lever
SL-710A
1649M
4
Tension
release wire
4 Tension
release wire
3
Solenoid lever
1652M
1
Knee lifter
connecting rod
4
Tension
release stud
1653M