HE-8000
62
7. CORRECT USE
Thread take-up spring tension
Turn the thread tension stud (1) to adjust the thread take-up spring tension to between approximately 0.10 -
0.20 N in accordance with the material to be sewn.
Thread take-up spring height
Loosen the set screw (2), and turn the entire thread tension adjuster to adjust the thread take-up spring
height to between 4 - 6 mm in accordance with the material to be sewn.
Reference thread tension
Stitch patterns
Whip stitch
Purl stitch
Upper thread
Polyester #50
Spun #60
Polyester #50
Spun #60
Lower thread
Polyester #50
Spun #60
Polyester #50
Spun #60
Upper thread tension
0.30 - 0.70 N
0.50 - 0.85 N
0.75 – 2.00 N
1.00 – 2.20 N
Lower thread tension
0.15 - 0.25 N
0.05 - 0.15 N
Thread take-up spring tension
0.10 - 0.20 N
Thread take-up spring height
4 - 6 mm
Upper thread tension for whip stitches
(with zigzag tension open)
When using a program that has whip stitches set,
press the RESET key to lower the work clamp, and
then take the measurement shown in the illustration.
Upper thread tension for purl stitches
(with zigzag tension closed)
When using a program that has purl stitches set,
press the RESET key to lower the work clamp, and
then take the measurement shown in the illustration.
2152Q
2151Q
(1)
Weaker
Stronger
4 – 6 mm
(2)
2150Q
2149Q
Thread take-up spring tension
Thread take-up spring height