Maintenance And Inspection - Brother SB-7270 Manual De Instrucciones

Maintenance and inspection of the sewing ma-
chine 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.
Turn off the power switch and disconnect the
power cord from the wall outlet at the following
times, otherwise the machine may operate if the
treadle is pressed by mistake, which could result
in injury.
¡ When carrying out inspection, adjustment and
maintenance
¡ 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 inertia. Wait until the
motor stops fully before starting work.
iii
CAUTION

Maintenance and inspection

SB-7270, 7280 (English)
If the power switch needs to be left on when car-
rying out some adjustment, be extremely careful
to observe all safety precautions.
Use only the proper replacement parts as speci-
fied by Brother.
If any safety devices have been removed, be ab-
solutely 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 modifications to the machine
will not be covered by the warranty.