Brother International LK3-B432E MKII Instruction Manual - English - Page 32

tension as appropriate for the material being sewn., 6-1. Guide to maximum sewing speed

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7. CORRECT USE 7-6-1. Guide to maximum sewing speed Use Max. sewing speed(rpm) 8 layers of denim 2,700 12 layers of denim 2,300 Ordinary materials 2,700 knitted materials 2,500 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). Use 8 layers of denim Ordinary materials Max. sewing speed(rpm) 2,500 2,500 7-6-2 . Lower thread tension weaker stronger q Adjust the thread tension to the weakest possible tension by turning the thread tension nut q until the bobbin case will not drop by its own weight while the thread end coming out of the bobbin case is held. 7-6-3 . Upper thread tension w Stronger Weaker Turn the tension nut q(main tension) to adjust the tension as appropriate for the material being sewn. Furthermore, turn the thread nut w(sub-tension) to adjust the remaining length of upper thread to 35 - 40 mm, when the thread take-up lever is not used. Stronger Weaker q LK3-B430E-, B431E-, B432E-, B433E- Mark II 26

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26
LK3-B430E-, B431E-, B432E-, B433E- Mark II
8 layers of denim
12 layers of denim
Ordinary materials
Max. sewing speed(rpm)
2,700
2,300
2,700
Use
knitted materials
2,500
8 layers of denim
Ordinary materials
Max. sewing speed(rpm)
2,500
2,500
Use
Weaker
Stronger
Weaker
Stronger
w
q
7-6-1. Guide to maximum sewing speed
<Standard hook>
<Large hook>
7-6-2 . Lower thread tension
Adjust the thread tension to the weakest possible ten-
sion by turning the thread tension nut
q
until the bob-
bin case will not drop by its own weight while the
thread end coming out of the bobbin case is held.
7-6-3 . Upper thread tension
Turn the tension nut
q
(main tension) to adjust the
tension as appropriate for the material being sewn.
Furthermore, turn the thread nut
w
(sub-tension) to ad-
just the remaining length of upper thread to 35 - 40
mm, when the thread take-up lever is not used.
weaker
stronger
q
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).
7. CORRECT USE