Adjusting The Sewing Machine (Standard Adjustments); Points To Note When Making Adjustments - Brother T-8421D Instruction Manual

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Adjusting the sewing machine
(Standard adjustments)

Points to note when making adjustments

• Secure the table so that it will not move when tilting back the machine head. If the table moves, it
may crush your feet or cause other injuries.
• Use both hands to hold the machine head when tilting it back or returning it to its original position. If
only one hand is used, the weight of the machine head may cause your hand to slip, and your hand
may get caught.
• Turn off the power switch and disconnect the power cord plug before carrying out inspection,
adjustment or repairs, or when replacing consumable parts such as the rotary hook or knives. The
machine may operate if the treadle is depressed by mistake, which could result in injury.
• If the power switch needs to be left on when carrying out some adjustment, be extremely careful to
observe all safety precautions.
• Maintenance and inspection of the sewing machine should only be carried out by a qualified
technician.
• Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the
electrical system.
• If any safety devices have been removed, be absolutely sure to re-install them to their original
positions and check that they operate correctly before using the machine.
• Always be sure to turn off the power switch and then wait one minute before opening the motor
cover. If you touch the surface of the motor, it may cause burns.
CAUTION
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