Thread Tension - Brother BAS-364E Instruction Manual

6. Thread tension

Shorter
Longer
q
1. Turn the adjustment screw q to adjust so that the length of the thread remaining at the needle point when the
needle bar is at its highest position after thread trimming is 40 - 45 mm.
2. The bobbin thread tension should be adjusted so that when the thread is held the bobbin will not descend of its own
weight. Turn tension screw w to adjust.
3. Turn tension screw e to adjust the needle thread tension.
6 - 8 mm
Lower
Higher
r
Weaker
w
Stronger
Weaker
Stronger
t
BAS-364E, 366E, 370E, 375E
Chapter 4 CORRECT OPERATION
Correct seam
Needle thread tension is too low
Needle thread tension is too high
4. The standard operating range for the thread take-up
spring (for heavy materials) is 6 - 8 mm. If adjustment
is required, loosen the set screw r and then turn the
needle thread tension adjuster. If adjustment of the
thread take-up spring tension is required, turn the thread
tension control stud t with a screwdriver.
* Medium materials 3 - 5 mm
Heavy materials 6 - 8 mm
Air bags -1 - 2 mm
Weaker
Stronger
e
16