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Upper And Lower Thread Tension - Brother KE-430HX Service Manual

Electronic direct drive lockstitch bar tacker electronic direct drive lockstitch button sewer.
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9. ADJUSTMENT

9-1-1. Upper and lower thread tension

3910B
<Foot switch>
<During test operation standby>
<Operating the upper thread tension>
● When using a foot switch
In the sewing standby condition and during test operation standby, the thread tension will output a tension value (1) which has
been set for the section while the foot switch is being depressed backward.
When the foot switch is returned to the neutral position, the thread tension will be released.
* If the work clamp/button clamp is lowered when the foot switch is returned to the neutral position, the thread tension output
will be maintained.
● When using a 2-pedal foot switch (option)
In the sewing standby condition and during test operation standby, the thread tension will output a thread tension value (1)
which has been set in the section No. 1 (sewing start section) appearing on the operation panel while the work clamp/button
clamp is lowered (while the work clamp switch is being depressed).
When the work clamp switch is released, the thread tension will be released.
* If the work clamp/button clamp is lowered when the work clamp switch is released, the thread tension output will be
maintained.
* The above operations are enabled when memory switch No. 072 is set to "1" or "2".
133
<Foot switch>
Backward depression position
<2-pedal foot switch (option)>
(1)
Work clamp switch (2-step)
KE-430HX/KE-430HS, BE-438HX/BE-438HS
Neutral
Start switch
2319B
2924B 2925B

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Ke-430hsBe-438hsBe-438hx

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