Brother KE-436C Instruction Manual page 38

6-6-2. Guide to maximum sewing speed
Use
8 layers of denim
12 layers of denim
Ordinary materials
Note:
The thread may break due to heat under some sewing conditions.
If this happens, reduce the sewing speed, or use the liquid cooling tank (option).
6-6-3. Lower thread tension
Weaker Stronger
6-6-4. Upper thread tension
.
Max. sewing speed (rpm)
Standard hook
2,500
2,300
2,500
2536Q
Stronger
Weaker
Stronger
Weaker
2714Q
Large hook
2,500
2,500
Adjust the thread tension to the weakest possible tension by
turning the thread tension nut (1) until the bobbin case will
not drop by its own weight while the thread end coming out
of the bobbin case is held.
Turn the tension nut (1) (main tension) to adjust the tension
as appropriate for the material being sewn.
Furthermore, turn the thread nut (2) (sub-tension) to adjust
the remaining length of upper thread to 35 - 40 mm, when
the thread take-up lever is not used.
KE-436C
6. CORRECT USE
32