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Maintenance and inspection of the sew-
ing machine should only be carried out
by a qualified technician.
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Ask your Brother dealer or a qualified
electrician to carry out any maintenance
and inspection of the electrical system.
¡
Turn off the power switch and discon-
nect the power cord from the wall out-
let at the following times, otherwise the
machine may operate if the treadle is
pressed by mistake, which could result
in injury.
However, 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.
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When carrying out inspection, adjust-
ment and maintenance
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When replacing consumable parts
such as the rotary hook
iii
CAUTION
Maintenance and inspection
SL-777B (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 specified by Brother.
¡
If any safety devices have been re-
moved, be absolutely sure to re-install
them to their original positions and
check that they operate correctly before
using the machine.
¡
Any problems in machine operation
which result from unauthorized modifi-
cations to the machine will not be cov-
ered by the warranty.
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