Brother International HE-800B Instruction Manual - English - Page 37
Thread take-up spring height, 4-5-5. Adjusting arm thread guide
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4-5-3. Thread take-up spring height 4. PREPARATION BEFORE SEWING Loosen the set screw (1), 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. 3958Q 4-5-4. Thread take-up spring tension 4777M Turn the thread tension stud (1) to adjust the thread take-up spring tension to between approximately 0.1 - 0.2 N in accordance with the material to be sewn. Weaker Stronger 4-5-5. Adjusting arm thread guide Index mark The standard position of arm thread guide (1) is when the screw (2) is aligned with the index mark. The standard position for the arm thread guide (3) is when the clearance between it and the screw (4) is 0.5 mm as shown in the illustration. 0.5mm 3960Q HE-800B 28