Maintenance And Inspection - Brother EF4-N11 Instruction Manual

This sewing machine should only be used by op-
erators who have received the necessary training
in safe use beforehand.
The sewing machine should not be used for any
applications other than sewing.
Be sure to wear protective goggles when using the
machine.
If goggles are not worn, there is the danger that if
a needle breaks, parts of the broken needle may
enter your eyes and injury may result.
Turn off the power switch at the following times,
otherwise the machine may operate if the treadle
is depressed by mistake, which could result in in-
jury.
• When threading the needle
• When replacing the needle
• When not using the machine and when leaving
the machine unattended
*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.
Turn off the power switch before starting any
cleaning work, otherwise the machine may oper-
ate if the treadle is depressed by mistake, which
could result in injury.
*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.
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
loopers and knife
*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
Sewing
Cleaning

Maintenance and inspection

EF4-N11, N21, MA4-N31 (English)
If using a work table which has casters, the casters
should be secured in such a way so that they cannot
move.
Attach all safety devices before using the sewing
machine. If the machine is used without these
devices attached, injury may result.
Do not touch any of the moving parts or press any
objects against the machine while sewing, as this
may result in personal injury or damage to the
machine.
For machines with automatic presser lifter, do not
touch the solenoid section, otherwise burns may
result.
If an error occurs in machine, or if abnormal noises
or smells are noticed, immediately turn off the
power switch. Then contact your nearest Brother
dealer or a qualified technician.
If the machine develops a problem, contact your
nearest Brother dealer or a qualified technician.
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 vom-
iting and diarrhoea.
Keep the oil out of the reach of children.
If the power switch needs to be left on when carry-
ing 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 abso-
lutely 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.