Two-Thread Sewing - Brother 4234DT Handbook

Two-thread sewing

How to set the thread change assembly
NOTE:
Be sure to set the thread change assembly to the
machine after completing the needle threading
using the needle threader. (You cannot use the
needle threader with the thread change assembly
set to the machine.)
1. Turn off the machine for safety.
2. Turn the hand wheel so that the mark on the
hand wheel is aligned to the "
machine.
3. Hold the thread change assembly 1 with your
fingertips tightly so that the gap is closed as
shown below.
1
4. While holding the thread change assembly 1,
push the hole of the thread change assembly
onto the upper end of the OL shaft 2 so that
the OL shaft passes through the hole.
24
" mark on the
TC
TC
5. Push the thread change assembly 2 fully
downward until the tip 3 of the thread change
assembly is put in the eye of the upper looper
4.
Make sure that the tip is in the
eye of the upper looper.
Setting of the looper has finished.
Chart of two-thread overlock stitch
Stitch length
Stitch width
Stitch finger
Thread tension
For fine
materials
Left needle
2 (1 - 3)
thread
Lower looper
6 (5 - 7)
thread
Right needle
2 (1 - 3)
thread
Lower looper
6 (5 - 7)
thread
3
5 - 7
Install
For medium
materials
2 (1 - 3)
6 (5 - 7)
2 (1 - 3)
6 (5 - 7)