Correcting The Digital Tension Output (Ke-430Hx, Be-438Hx) - Brother KE-430HX Service Manual

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9-25. Correcting the digital tension output (KE-430HX, BE-438HX)

・ The procedure for correcting the tension (output) from the digital tension
involves carrying out the procedure of measuring the actual upper thread
tension and entering the four measured values using the operation panel.
・ The standard values for the four tensions for the digital tension vary for each
measurement as shown in the table at right.
By entering the actual measurement values each time, the digital tension
output will be automatically corrected, and the tension that corresponds to the
setting can then be obtained when sewing.
1
2
1. Adjust the pretension to 5 to 7 gf (0.05 to 0.07 N).
* At this time, use the TOYOBO polyester #50 (white) thread which
is recommended by Brother.
2. Thread the upper thread as shown in the illustration at left.
NOTE:
Do not thread the thread through the thread take-up spring.
*
If you do not observe the above note, the digital tension output
correction may not be carried out correctly.
1.
While pressing the menu key, turn on the power switch.
*
Keep pressing the menu key
displayed and the buzzer beeps once.
2.
Touch "Digital tension output adjustment" in the adjustment
menu screen to switch to the adjustment screen.
*
This function can only be used with the KE-430HX and BE-438HX.
KE-430HX/KE-430HS, BE-438HX/BE-438HS
9. ADJUSTMENT
Standard tension value
for digital tension (gf)
30
80
180
330
2816B 2817B
until the model name is
158

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