BAS-311HDIRECT DRIVEPROGRAMMABLE EL

BAS-311H
DIRECT DRIVE
PROGRAMMABLE ELECTRONIC PATTERN SEWER
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
This basic operation
manual describes basic
operations including sewing machine operations.
For cleaning, standard adjustments and more details,
please refer to the instruction manual contained in
the Document CD.
Basic Operation Manual



BAS-311H
Thank you very much for buying a BROTHER sewing machine. Before using your new machine,
please read the safety instructions below and the explanations given in the instruction manual.
With industrial sewing machines, it is normal to carry out work while positioned directly in front of
moving parts such as the needle and thread take-up lever, and consequently there is always a
danger of injury that can be caused by these parts. Follow the instructions from training personnel
and instructors regarding safe and correct operation before operating the machine so that you will
know how to use it correctly.



BAS-311H
i
SAFETY INSTRUCTIONS
[1] Safety indications and their meanings
This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure
safe operation of this machine and to prevent accidents and injury to yourself or other people.
The meanings of these indications and symbols are given below.
Indications
DANGER
The instructions which follow this term indicate situations where failure to follow the
instructions will result in death or serious injury.
WARNING
The instructions which follow this term indicate situations where failure to follow the
instructions could result in death or serious injury.
CAUTION
The instructions which follow this term indicate situations where failure to follow the
instructions may result in minor or moderate injury.
Symbols
･･････
This symbol (
) indicates something that you should be careful of. The picture inside the triangle
indicates the nature of the caution that must be taken.
(For example, the symbol at left means “beware of injury”.)
･･････
This symbol ( ) indicates something that you must not do.
･･････
This symbol (
) indicates something that you must do. The picture inside the circle indicates the
nature of the thing that must be done.
(For example, the symbol at left means “you must make the ground connection”.)



BAS-311H
ii
[2] Notes on safety
DANGER
Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet
before opening the control box cover. Touching areas where high voltages are present can result in severe injury.
WARNING
Do not allow any liquids to get onto this sewing machine, otherwise fire, electric shocks or operating problems may
occur.
If any liquid gets inside the sewing machine (machine head or control box), immediately turn off the power and
disconnect the power plug from the electrical outlet, and then contact the place of purchase or a qualified
technician.
CAUTION
Environmental requirements
Use the sewing machine in an area which is free from
sources of strong electrical noise such as electrical
line noise or static electric noise.
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 power
consumption.
Insufficient power supply capacity
may
cause
problems with correct operation.
The pneumatic delivery capability should be greater
than the requirements for the sewing machine's total
air consumption.
Insufficient pneumatic delivery capability may cause
problems with correct operation.
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.
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
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 approximately 88 kg.
The installation should be carried out by two or more
people.
Do not connect the power cord until installation is
complete. If the foot switch is depressed by mistake,
the sewing machine might start operating and injury
could result.
Hold the machine head with both hands when tilting it
back or returning it to its original position.
Furthermore, do not apply excessive force when
tilting back the machine head. The sewing machine
may become unbalanced and fall down, and serious
injury or damage to the sewing machine may result.
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.
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 safety 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. If the oil
and grease get into your eyes or onto your skin,
inflammation can result.
Furthermore, do not drink or eat the lubricating oil or
grease. They may cause diarrhea or vomiting.
Keep the oil out of the reach of children.



BAS-311H
iii
CAUTION
Sewing
This sewing machine should only
be used by
operators 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. If the
foot switch is depressed by mistake, the sewing
machine might start operating and injury could result.

When threading the needle

When replacing the bobbin and needle

When not using the machine and when leaving the
machine unattended
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.
If an error occurs in machine operation, 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.
Cleaning
Turn off the
power switch before carrying out
cleaning. If the foot switch is depressed by mistake,
the sewing machine might start operating and injury
could result.
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. If the oil
and grease get into your eyes or onto your skin,
inflammation can result.
Furthermore, do not drink or eat the lubricating oil or
grease. They may cause diarrhea or vomiting.
Keep the oil out of the reach of children.
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 before carrying out the following operations. If
the foot switch is depressed by mistake, the sewing
machine might start operating and injury could result.

Inspection, adjustment and maintenance

Replacing consumable parts such as the rotary
hook
Disconnect the air hoses from the air supply and wait
for the needle on the pressure gauge to drop to “0”
before carrying out inspection, adjustment and repair
of any parts which use the pneumatic equipment.
Hold the machine head with both hands when tilting it
back or returning it to its original position.
Furthermore, do not apply excessive force when
tilting back the machine head. The sewing machine
may become unbalanced and fall down, and serious
injury or damage to the sewing machine may result.
If the power switch needs to be left on when carrying
out some adjustment, be extremely careful to observe
all safety precautions.
When replacing parts and installing optional
accessories, be sure to use only genuine Brother
parts.
Brother will not be held responsible for any accidents
or problems resulting from the use of non-genuine
parts.
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.
To prevent accidents and problems, do not modify
the machine yourself.
Brother will not be held responsible