Brother DZ820E - Manual (Page 70)

68
EMBROIDERY
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Bobbin Case Adjustment
The bobbin case installed in this machine can be
adjusted, if necessary, to accommodate the bobbin
tension for embroidering. The insertion below
describes how to adjust the bobbin tension for
embroidery use. Using a small slotted screwdriver,
turn the slotted-head (b) screw to adjust the
bobbin case tension.
a Do not turn a phillips screw (+).
b Adjust with a screwdriver (small).
Correct tension
Upper thread slightly appears on the wrong side of
fabric.
a Right side
b Wrong side
Bobbin thread is loose
Bobbin thread appears slightly on the right side of
fabric.
a Right side
b Wrong side
If this occurs, turn the slotted-head screw (b)
clockwise, being careful not to over-tighten the
screw, approximately 30-45 degrees to increase
bobbin tension.
Bobbin thread is tight
Upper thread on the right side of fabric seems to be
lifting/looping and bobbin thread is not seen on the
wrong side of fabric.
a Right side
b Wrong side
If this occurs, turn the slotted-head screw (b)
counterclockwise being careful not to over-loosen
the screw, approximately 30-45 degrees to decrease
bobbin tension.
CAUTION
● When adjusting the bobbin case, be sure
to remove the bobbin from the bobbin
case.
● DO NOT adjust the position of the
Phillips (a) screw on the bobbin case as
this may result in damage to the bobbin
case, rendering it unusable.
● If the slotted-head screw (b) is difficult to
turn, do not use force. Turning the screw
too much or providing force in either
(rotational) direction may cause damage
to the bobbin case. Should damage occur,
the bobbin case may not maintain proper
tension.