Brother International T-8420B Instruction Manual - English - Page 25

Threading the upper thread

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5. PREPARATION BEFORE SEWING 5-5. Threading the upper thread CAUTION Turn off the power switch before threading the upper thread. The motor will keep turning even after the power is switched off as a result of the motor's inertia. Wait until the motor stops fully before starting work. The machine may operate if the treadle is depressed by mistake, which could result in injury. ・ Turn the machine pulley and raise the thread take-up (1) before threading the upper thread. This will make threading easier and it will prevent the thread from coming out at the sewing start. ・ Thread the left-side thread first. 19 T-8420B, 8450B, 8720B, 8750B

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T-8420B, 8450B, 8720B, 8750B
5. PREPARATION BEFORE SEWING
19
5-5. Threading the upper thread
CAUTION
Turn off the power switch before threading the upper thread. The motor will keep turning even after the power is
switched off as a result of the motor’s inertia. Wait until the motor stops fully before starting work.
The machine may operate if the treadle is depressed by mistake, which could result in injury.
・
Turn the machine pulley and raise the thread take-up (1) before threading the upper thread.
This will make threading easier and it will prevent the thread from coming out at the sewing start.
・
Thread the left-side thread first.