Brother International BES-963 Instruction Manual - English - Page 155
Adjustment of Clearance Between Needle and Rotary Hook
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Chapter 8 Adjustment 3. Adjustment of Clearance Between Needle and Rotary Hook 1. Turn the power switch off. i 987654321 q 2. Select the needle bar No. 1 q. The illustration at the left shows the case of BES- 963BC. For BES-1263BC, the No. 12 needle becomes needle bar No. 9. w e 3. Remove two flat screws w and dismount the needle plate e. 2mm 2mm r u 0.3~0.5mm t y 4. Turn the pulley B until the pulley indication mark " " and the stop mark "NH " are aligned. 5. Turn the rotary hook r manually so that the rotary hook point is aligned properly. 6. Loosen the set screw y on the side of the bed t. 7. Turn the eccentric screw u on the left side of the bed t using a regular screwdriver and adjust a clearance between the needle and the rotary shaft to 0.3 ~ 0.5 mm. 8. Adjust the clearance between the needle and the rotary hook's point to 0.3 ~ 0.5 mm at the needle bar No. 9 i (No. 12 needle for BES-1263BC). Note) If the clearance between the needle and the rotary hook point is not within the range of 0.3 ~ 0.5 mm, adjust again as described in the step r until the needle bar No. 1 or No. 9 (No. 12 for BES-1263BC) whichever has the smallest clearance may not be interfered by the rotary hook point. BES-963BC • BES-1263BC 153