Brother Innov-is NV4000D, Руководство по обслуживанию

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Adjustment BH lever switch position adjustment
1. Raise the presser foot lifter.
2. Set the BH presser to a point two pitches less than the maximum length.
3. Attach the BH presser.
4. Lower the presser foot lifter.
5. Lower the BH lever, and set it to the BH presser.
6. Rotate the BH eccentric shaft so that BH0 contacts BH1.
*Key point
• With the presser foot lifter raised, pull the BH presser forward as much as possible, and check that BH0
comes into contact with BH2 and that BH2 has some deflection.
• With the presser foot lifter raised, push the BH presser back as much as possible, and check that BH0 comes
into contact with BH1 and that BH1 has some deflection.
Extend fully and
return two piches
Two piches
Contact
BH eccentric shaft
When pushed to the
fullest backward When pulled to the
fullest forward
Deflect
Deflect
BH2 BH0 BH1
BH2 BH0 BH1
BH2 BH0 BH1