Brother International BAS-300G Instruction Manual - English - Page 65
Thread take-up spring, 10-3. Arm thread guide R, STANDARD ADJUSTMENTS
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10. STANDARD ADJUSTMENTS 10-2. Thread take-up spring Specifications Thread take-up spring height (mm) Thread take-up spring tension (N) Heavy-weight materials (-01[]) Medium-weight materials (-02[]) 7 − 10 0.6 − 1.2 0.2 − 0.5 Seatbelt (-03[]) 2 − 4 1.0 − 1.4 Lower Higher Loosen the set screw (1) and turn the adjuster to adjust. 5022Q Turn the tension stud (2) with a screwdriver to adjust the tension. Stronger Weaker 2265B NOTE: If the thread tension spring is not adjusted correctly, the upper thread trailing length will be uneven after thread trimming. 10-3. Arm thread guide R More thread Less thread Index mark The standard position of arm thread guide R (1) is when the screw (2) is aligned with the index mark. Loosen the screw (2) and move arm thread guide R (1) to adjust. * When sewing heavy material, move arm thread guide R (1) to the left. (The thread take-up amount will become greater.) * When sewing light material, move arm thread guide R (1) to the right. (The thread take-up amount will become less.) 5030Q BAS-300G, BAS-311G, BAS-326G 56