Brother LK3-B430E MARK II - 2 Standard Thread Tension

LK3-B430E Mark II
4
2. STANDARD THREAD TENSION
2. STANDARD THREAD TENSION
Application
Ordinary materials (-1, -5) Denim (-2) Knitted materials (-7)
Standard hook Large hook Standard hook Large hook Standard hook
Needle thread #50 or equivalent , #30 or equivalent , #60 or equivalent
Lower thread #60 or equivalent , #50 or equivalent , #80 or equivalent
Needle thread tension (N) 0.6 - 0.9 1.0 - 1.3 1.2 - 1.6 1.4 - 1.8 0.8 - 1.0
Lower thread tension (N) 0.2 - 0.3 , 0.2 - 0.3 , 0.2 - 0.3
Spring height (mm) 6 - 8 , 6 - 8 , 6 - 8
Spring tension (N) 0.15 - 0.35 , 0.4 - 0.6 , 0.2 - 0.4
Pretension (N) 0.1 - 0.3 , 0.3 - 0.5 , 0.1 - 0.3
Needle DP×5#14 , DP×17NY#19 , DP×5#9
■ Measuring tension
Needle thread tension Lower thread tension
Spring height Spring tension
* When the spring height (stroke) is great or the spring tension is insufficient, it may cause the thread end
length to vary after thread trimming.
Measure the spring tension when the spring end is
lowered to the thread hook of the thread take-up le-
ver.