Brother CB3-B917 Service Manual page 3

2. Notes on safety
Do not put your hand into any openings near the belt, as your hands could get caught in
the belt, and serious injury could result.
Use the sewing machine in an area which is free
from sources of strong electrical noise such as
high-frequency welders.
Sources of strong electrical noise may cause
problems with correct operation.
Any fluctuations in the power supply voltage
should be within ±10% of the rated voltage for
the machine.
Voltage fluctuations which are greater than this
may cause problems with correct operation.
The power supply capacity should be greater
than the requirements for the sewing machine's
electrical consumption.
Insufficient power supply capacity may cause
problems with correct operation.
Machine installation should only be carried out
by a qualified technician.
Contact your Brother dealer or a qualified
electrician for any electrical work that may need
to be done.
The sewing machine weighs more than 25 kg.
The installation should be carried out by two or
more people.
Do not connect the power cord until installation
is complete, otherwise the machine may operate
if the pedal is depressed by mistake, which
could result in injury.
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.
ii
WARNING
CAUTION
Environmental requirements
The ambient temperature should be within the
range of 5°C to 35°C during use.
Temperatures which are lower or higher than
this may cause problems with correct operation.
The relative humidity should be within the range
of 45% to 85% during use, and no dew
formation should occur in any devices.
Excessively dry or humid environments and dew
formation may cause problems with correct
operation.
Avoid exposure to direct sunlight during use.
Exposure to direct sunlight may cause problems
with correct operation.
In the event of an electrical storm, turn off the
power and disconnect the power cord from the
wall outlet.
Lightning may cause problems with correct
operation.
Installation
All cords should be secured at least 25 mm
away from any moving parts. Furthermore, do
not excessively bend the cords or secure them
too firmly with staples, otherwise there is the
danger that fire or electric shocks could occur.
Install the belt covers to the machine head and
motor.
If using a work table which has casters, the
casters should be secured in such a way so that
they cannot move.
Be sure to wear protective goggles and gloves
when handling the lubricating oil and grease, so
that they do not get into your eyes or onto your
skin, otherwise inflammation can result.
Furthermore, do not drink the oil or eat the
grease under any circumstances, as they can
cause vomiting and diarrhoea.
Keep the oil out of the reach of children.
CB3-B916A/B917A