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Z-8550A, 8560A
iv
CAUTION
Maintenance and inspection
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.
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
depressed by mistake, which could result in injury.
When carrying out inspection, adjustment and
maintenance
When replacing consumable parts such as the
rotary hook
Turn off the power switch before inserting or
removing the plug, otherwise damage to the control
box could result.
If the power switch needs to be left on when
carrying out some adjustment, be extremely careful
to observe all safety precautions.
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.
Never touch the knife on the face plate when
opening the thread takeup guard cover, otherwise
injury may result.
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.
When removing the needle plate, auxiliary needle
plate and knife unit, use a screwdriver that matches
the size of the screw heads.
If a screwdriver with a size that does not match is
used, it may damage the screw heads and cause
personal injury or damage to the sewing articles.
Use only the proper replacement parts as specified
by Brother.
Any problems in machine operation which result
from unauthorized modifications to the machine will
not be covered by the warranty.
[3] Warning labels
The following warning labels appear on the sewing machine.
Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or
are difficult to read, please contact your nearest Brother dealer.
1
2
Safety devices:
(A) Finger guard
(B) Thread take-up guard cover
3
Be sure to connect the ground.
If the ground connection is not secure, you run a high
risk of receiving a serious electric shock, and
problems with correct operation may also occur.