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Maintenance and inspection of the sewing ma-
chine should only be carried out by a qualified
technician.
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Ask your Brother dealer or a qualified electri-
cian to carry out any maintenance and inspec-
tion of the electrical system.
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Turn off the power switch and disconnect the
power cord from the wall outlet at the follow-
ing times, otherwise the machine may operate
if the treadle is pressed by mistake, which could
result in injury.
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When carrying out inspection, adjustment
and maintenance
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When replacing consumable parts such as
the rotary hook
* When using a clutch motor, the motor will
keep turning even after the power is
switched off as a result of the motor's iner-
tia. Wait until the motor stops fully before
starting work.
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All manuals and user guides at all-guides.com
CAUTION
Maintenance and inspection
DB2-B720 series (English)
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If the power switch needs to be left on when
carrying out some adjustment, be extremely
careful to observe all safety precautions.
¡
Use only the proper replacement parts as speci-
fied by Brother.
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If any safety devices have been removed, be
absolutely sure to re-install them to their origi-
nal positions and check that they operate cor-
rectly before using the machine.
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Any problems in machine operation which re-
sult from unauthorized modifications to the
machine will not be covered by the warranty.
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