Brother Sewing Machine 342Fi User Manual

INSTRUCTION MANUAL

BAS-341F

BAS-342F

Please read this manual before making using the machine.

Please keep this manual within easy reach for quick reference.

PROGRAMMABLE ELECTRONIC PATTERN SEWER

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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 face plate of the control box. Touching areas where high voltages are present can result in

severe injury.

CAUTION

Environmental requirements

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.

The ambient temperature should be within the

range of 5 to 35 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.

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.

Avoid exposure to direct sunlight during use.

Exposure to direct sunlight may cause problems

with correct operation.

Insufficient power supply capacity 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.

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.

Installation

Machine installation should only be carried out by

a qualified technician.

Install the belt cover and the frame side cover to

the machine head and motor.

Contact your Brother dealer or a qualified electrician

for any electrical work that may need to be done.

If using a work table which has casters, the

casters should be secured in such a way so that

they cannot move.

The sewing machine weighs more than 200 kg.

The installation should be carried out by two or

more people.

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.

Do not connect the power cord until installation is

complete, otherwise the machine may operate if

the foot switch is depressed by mistake, which

could result in injury.

Furthermore, do not drink the oil or eat the grease

under any circumstances, as they can cause

vomiting and diarrhoea.

Hold the machine head with both hands by two or

more people when tilting it back or returning it to its

original position.

Keep the oil out of the reach of children.

Furthermore, after tilting back the machine head,

do not push the face plate side or the pulley side

from above, as this could cause the machine head

to topple over, which may result in personal injury

or damage to the machine.

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.

BAS-341F, 342F

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CAUTION

Sewing

If using a work table which has casters, the

casters should be secured in such a way so that

they cannot move.

This sewing machine should only be used by

operators who have received the necessary

training in safe use beforehand.

Attach all safety devices before using the sewing

machine. If the machine is used without these

devices attached, injury may result.

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.

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.

Set the needle to the needle up stop position

before turning off the power.

If this is not done, the wiper may strike the needle,

which might cause the needle to break.

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.

Turn off the power switch at the following times,

otherwise the machine may operate if the foot

switch is depressed by mistake, which could result

in injury.

If the machine develops a problem, contact your

nearest Brother dealer or a qualified technician.

• When replacing bobbin

• When not using the machine and when leaving

the machine unattended

Cleaning

Turn off the power switch before carrying out

cleaning, otherwise the machine may operate if

the foot switch is depressed by mistake, which

could result in injury.

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.

Maintenance and inspection

Maintenance and inspection of the sewing

machine should only be carried out by a qualified

technician.

If the power switch and air need to be left on when

carrying out some adjustment, be extremely

careful to observe all safety precautions.

Ask your Brother dealer or a qualified electrician to

carry out any maintenance and inspection of the

electrical system.

Hold the machine head with both hands by two or

more people when tilting it back or returning it to its

original position.

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

foot switch is depressed by mistake, which could

result in injury.

Furthermore, after tilting back the machine head,

do not push the face plate side or the pulley side

from above, as this could cause the machine head

to topple over, which may result in personal injury

or damage to the machine.

• When carrying out inspection, adjustment and

maintenance

• When replacing consumable parts such as the

Use only the proper replacement parts as

specified by Brother.

rotary hook

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.

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.

Any problems in machine operation which result

from unauthorized modifications to the machine

will not be covered by the warranty.

BAS-341F, 342F

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iii

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.

Safety devices

Eye guard

Finger guard

Thread take-up cover

Belt cover , etc.

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.

Thread take-up cover

Belt cover

Eye guard

Finger guard

1971S

BAS-341F, 342F

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CONTENTS

1. NAME OF MAJOR PARTS ^{.................................................................................................................... 1}

2. SPECIFICATIONS ^{........................................................................................................................................... 2}

3. PREPARATION ^{.................................................................................................................................................. 3}

3-1. Before setting up .............................................................................................................................................................. 3

3-2. Positioning ......................................................................................................................................................................... 4

3-3. Tilting the sewing machine head .................................................................................................................................. 4

3-4. Connecting the ground wire ........................................................................................................................................... 5

3-5. V-belt tension ..................................................................................................................................................................... 5

3-6. Installing the foot switch ............................................................................................................................................... 5

3-7. Installing the spool stand ................................................................................................................................................ 6

3-8. Installing the programmer (option) ............................................................................................................................... 6

3-9. Adjusting the air pressure ............................................................................................................................................... 7

4. LUBRICATION^{...................................................................................................................................................... 8}

4-1. Lubrication points ............................................................................................................................................................. 8

5. CORRECT USE^{................................................................................................................................................... 9}

5-1. Selecting the needle and thread ...................................................................................................................9

5-2. Installing the needle and urnning the sewing machine..................................................................................9

5-3. Threading the upper thread ........................................................................................................................10

5-4. Winding the lower thread ............................................................................................................................11

5-5. Replacing the bobbin case and threading the thread .................................................................................12

5-6. Sewing conditions and thread tension ........................................................................................................12

5-6-1. Sewing conditions .................................................................................................................................................... 12

5-6-2. Lower thread tension ............................................................................................................................................... 13

5-6-3. Upper thread tension ............................................................................................................................................... 13

5-6-4. Thread take-up spring height ................................................................................................................................... 13

5-6-5. Thread take-up spring tension.................................................................................................................................. 13

5-6-6. Pretension tension .................................................................................................................................................... 14

6. USING THE OPERATION PANEL^{................................................................................................ 15}

6-1. Explanation of panel .................................................................................................................................................... 15

6-2. Using the floppy disk ................................................................................................................................................... 17

6-3. Using the program R/W (Read/Write) switch ............................................................................................................. 19

6-4. Using the TEST switch (Checking the sewing pattern) ............................................................................................. 20

6-5. Using the emergency stop switch ............................................................................................................................... 21

6-6. Adjusting the sewing SPEED control ....................................................................................................................... 22

6-7. Changing the X-SCALE and Y-SCALE settings ........................................................................................................ 22

6-8. Using the bobbin thread counter ................................................................................................................................ 23

6-9. Using production counter ............................................................................................................................................ 24

6-10. Using single split mode ............................................................................................................................................. 25

6-11. Shifting a stitch pattern .............................................................................................................................................. 26

BAS-341F, 342F

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7. SEWING ^{....................................................................................................................................................................27}

7-1. Before starting sewing....................................................................................................................................................27

7-2. Sewing operation ............................................................................................................................................................27

8. MAINTENANCE AND INSPECTION ^{........................................................................................29}

8-1. Cleaning the shuttle hook .............................................................................................................................................29

8-2. Lubrication ........................................................................................................................................................................29

8-3. Draining the oil ................................................................................................................................................................30

8-4. Cleaning the control box air inlet port .........................................................................................................................30

8-5. Cleaning the eye guard .................................................................................................................................................31

8-6. Checking the needle ......................................................................................................................................................31

9. STANDARD ADJUSTMENTS ^{..........................................................................................................32}

9-1. Adjusting the needle bar height....................................................................................................................................32

9-2. Adjusting the needle bar lift amount ...........................................................................................................................32

9-3. Adjusting the needle clearance ...................................................................................................................................33

9-4. Adjusting the driver needle guard ...............................................................................................................................33

9-5. Adjusting the shuttle race thread guide .....................................................................................................................33

9-6. Adjusting the movable knife .........................................................................................................................................34

9-7. Adjusting the presser foot..............................................................................................................................................36

9-8. Changing the presser foot lift .......................................................................................................................................37

9-9. Adjusting the wiper..........................................................................................................................................................38

9-10. Adjusting the needle up stop position ......................................................................................................................38

9-11. Checking the input sensor and DIP switch input ...................................................................................................39

9-12. Checking the input voltage .........................................................................................................................................40

9-13. Clearing all memory settings .....................................................................................................................................40

10. DIP SWITCH ^{.....................................................................................................................................................41}

10-1. Panel DIP switch functions ........................................................................................................................................41

10-2. DIP switches inside the control box .........................................................................................................................43

11. CHANGING SPECIAL FUNCTIONS AND

USING THE MEMORY SWITCHES ^{........................................................................................45}

12. ERROR CODES ^{...........................................................................................................................................50}

13. GAUGE PARTS LIST ACCORDING TO SUBCLASSES ^{...............................52}

14. NOTES ON THE PROCESSING AND PRODUCTION

OF PLATE BLANKS^{.................................................................................................................................53}

15. TROUBLESHOOTING ^{..........................................................................................................................54}

16. OPTIONS ^{..............................................................................................................................................................58}

BAS-341F, 342F

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1. NAME OF EACH PARTS

■

BAS-341F

Cotton stand

Emergency stop switch

Operation panel

Thread wiper switch

Programmer

Power switch

Control box

Solenoid valve

Integrater

Presser lifter pedal

Starting pedal

1917S

■

BAS-342F

Presser foot

Work clamp

Feed plate

1918S

BAS-341F, 342F

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2. SPECIFICATIONS

Stitch formation

Single needle lock stitch

Sewing machine

Maximum pattern size

Maximum stitch number

Stitch length

Lock stitch, pattern tacking sewing machine (with large shuttle hook)

BAS-341F: 250X 150 mm, BAS-342F: 300 X 200 mm

20,000 (one pattern)

0.1 - 12.7 mm

Maximum sewing speed

Feed mechanism

Shuttle hook

2,500 rpm (When stitch length is 3 mm or less)

Intermittent feed, pulse motor drive

Double hook (Standard hook is sold separately)

DP X 5, DP X 17, MR

Needle

Data storage method

Test function

3.5 floppy disk 2HD/1.44MB, 2DD

Operation test function provided for use with low speed drive

Automatic stop function for activation in the event of misoperation realized with intermediate

stop function and safety circuits

Safety devices

Work clamp height

Work clamp

Max.30 mm

Unit work clamp (special order-separate work clamp)

18 mm

Work clamp lift stroke

Intermittent stroke

0 or 3 (Factory default) - 8 mm

Machine head: 80kg,

Control box: 10 - 20 kg (depending on destination)

Weights

Power supply

Motor

Single-phase 110V, 220V, 240V, 3-phase 220V, 380V, 400V, 900VA

Three-phase 400 W induction motor

0.50 MPa 1.8 l/ min

Air pressure

Power table

Use sitting or standing

BAS-341F 1,200W X 1,220D X 860H mm (Sitting)-1,130H mm (Standing)

BAS-342F 1,200W X 1,270D X 860H mm (Sitting)-1,130H mm (Standing)

Machine dimensions

BAS-341F, 342F

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3. PREPARATION

CAUTION

Install the belt cover and the frame side cover to

the machine head and motor.

Machine installation should only be carried out by

a qualified technician.

If using a work table which has casters, the

casters should be secured in such a way so that

they cannot move.

Contact your Brother dealer or a qualified

electrician for any electrical work that may need to

be done.

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.

The sewing machine head weighs more than 200

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 foot switch is depressed by mistake, which

could result in injury.

keep the oil out of the reach of children.

Be sure to connect the ground. If the ground

connection is not secure, you run the risk of

receiving a serious electric shock.

Hold the machine head with both hands by two or

more peple when tilting it back or returning it to its

original position. Furthermore, after tilting back the

machine head, do not push the face plate side or

the pulley side from above, as this could cause the

machine head to topple over, which may result in

personal injury or damage to the machine.

3-1. Before setting up

1. Install the Y driving shaft guard (1) to the rear of the

arm with the bolt (2) and the spring washer (3).

2. Install the guard (4) to the table rear cover (5) with the

bolt (6), spring washer (7), flat washer (8) and nut (9).

1919S

BAS-341F, 342F

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3. PREPARATION

3-2. Positioning

Decide the position for the sewing machine. Loosen nuts

of four level adjusters (1). Lower the level adjusters and

secure them with nuts (2).

Turning the level adjuster counterclockwise will raise its

height and turning it clockwise will lower it.

1920S

3-3. Tilting the sewing machine head

1921S

1. Remove screws (1) at the back of the work table, and

remove table cover (rear) (2).

2. Remove bolt (3).

The bolts are used to fix the machine in shipping.

Generally they are needless after removing them

keep them in another place.

Gas spring

3. Stand at the front of the table and slowly raise the

machine (4). Then lock it.

4. When returning the machine to its former position,

release lock (5). The gas spring will guide the machine

to its original position.

1922S

BAS-341F, 342F

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3. PREPARATION

3-4. Connecting the ground wire

CAUTION

Be sure to connect the ground. If the ground connection is not secure, you run the risk of receiving a serious

electric shock.

Connection method for 3-phase power supply.

3-phase

Red

White

Black

power supply

Yellow/Green

Yellow/Greeen

Connect to

ground

0064Q

3-5. V-belt tension

These should approximately 10 - 12 mm of slack when V-

belt is loaded at 9.8 N . To adjust, loosen the two nuts (1),

and shift the motor up or down.

1923S

3-6. Installing the foot switch

Insert the connector of the foot switch (2) into the

connector (3) of the control box (1).

1924S

BAS-341F, 342F

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3. PREPARATION

3-7. Installing the spool stand

Install the spool stand (1) to the table.

(1)

0073Q

3-8. Installing the programmer (option)

[Flat]

[Vertical]

(1)

(2)

(1)

(2)

(4)

(3)

1181S

1182S

1183S

1. Install the programmer support (2) to the work table with the two screws (1).

2. Insert the programmer connector (4) securely into the left side of the operation panel (3).

BAS-341F, 342F

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3. PREPARATION

3-9. Adjusting the air pressure

1. Air pressure should be 0.5 MPa.

The air pressure can be adjusted by pulling up and

turning the control knob (2) on the integrator (1).

After adjustment is complete, push the control knob

(2) downward to lock it.

2. If water stands in the bottle of the integrator (1), turn

the drain cock (3) in the direction indicated by an arrow

to drain the water.

Note

Open the air cock (4) slowly.

1925S

BAS-341F, 342F

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4. LUBRICATION

CAUTION

Turn off the power switch before starting lubricating, otherwise the machine may operate if the foot switch is

depressed by mistake, which could result in injury.

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.

Note

•

Fill the machine with oil when the oil level is down to about one-third full in the oil sight glass.

If oil is not added and the oil drops below this level, there is the danger that the machine may seize during

operation.

•

Be sure to let the machine operate for a while after adding the oil.

Use only specified Brother oil (Nisseki Mitsubishi Sewing Lube 10N; VG10) for the machine oil.

4-1. Lubrication points

1926S

1927S

1. Fill the arm-side oil tank with oil.

2. Fill the bed-side oil tank with oil.

(Fill the oil tank with sewing machine oil.)

1928S

1929S

3. Add a drop of oil to the shuttle hook race.

4. If using the liquid cooling tank (1), fill it with silicon oil

(100 mm²/S).

BAS-341F, 342F

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5. CORRECT USE

5-1. Selecting the needle and thread

Needle

Thread

#100 - #60

#80 - #50

#50 - #20

Main application

Knitted wear

General clothing

Denim

Different needles and threads are used for different sewing

applications.

DP X 5 #9

DP X 5 #16

DP X 17NY #19

DP X 17 #21

DP X 17 #25

Refer to the table at left for details on which needle.

Denim

Leather•seat belts

5-2. Installing the needle and running the sewing machine

CAUTION

Turn off the power switch before installing the needle, otherwise the machine may operate of the foot switch is

depressed by mistake and serious injury could result.

■ ^{Installing the needle}

■ ^{To turn the pulley by hand}

Turning

Down

Press

1930S

1931S

Loosen the set screw (1), insert the needle (2) as far as

it will go so that the groove is facing toward you and

then tighten the set screw (1).

Simply press in on the pulley (1) to turn it by hand. To

turn the pulley, press lever (2) down.

• After turning the pulley by hand, be sure to press the

lever down to return the pulley to the normal

operating position.

BAS-341F, 342F

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5. CORRECT USE

5-3. Threading the upper thread

CAUTION

Turn off the power switch before threading the thread, otherwise the machine may operate of the foot switch is

depressed by mistake and serious injury could result.

1932S

[When using cotton thread and spun yarn]

[With synthetic thread]

[Threading in the upper thread breakage detector]

Real the thread from above once or

twice as the above figure.

1934S

1933S

■ Thread the upper thread correctly as shown in the illustration above.

Note

•

Turn the machine pulley and raise the thread take-up lever (1) before threading the upper thread.

(This will make threading easier and it will prevent the thread from coming out at the sewing start.)

•

When threading the thread through the needle, allow a distance of approximately 40 mm between the needle hole

and the end of the thread. If the trailing length of the thread is too long, it may cause the thread to.

BAS-341F, 342F

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5. CORRECT USE

5-4. Winding the lower thread

CAUTION

Do not touch or place anything against any of the moving parts while winding the lower thread, otherwise

personal injury or damage to the machine may result.

1. Place the bobbin all the way onto the shaft.

2. Thread the thread as shown in the illustration at left,

wind the thread around the bobbin several times in the

direction of the arrow, and then press the bobbin

presser (1).

3. Turn on the power switch.

(1)

(The POWER indicator on the operation panel will

illuminate.)

1198S

1935S

1199S

4. Check that the needle is not touching the presser foot,

and then while pressing the STEP BACK switch (2),

depress the foot switch (3) to start the machine. Keep

depressing the foot switch (3) until the lower thread

stops being wound onto the bobbin.

Release the STEP BACK switch (2) after the machine

starts operating.

(2)

If you release the foot switch before winding is com-

pleted, depress it once more while pressing and hold-

ing the STEP BACK switch (2).

5. The bobbin presser (1) will automatically return to its

original position after a set amount of thread (80 - 90%

of the bobbin capacity) has been wound on.

6. Release the foot switch (3).

(5)

7. Remove the bobbin, hook the thread onto the knife (4),

and then pull the bobbin in the direction of the arrow to

cut the thread.

(4)

(1)

8. To wind more thread onto the bobbin, loosen the set

screw (5) and pull the bobbin presser (1) outward.

0106Q

0107Q

<< If the thread winds onto the bobbin unevenly >>

If the thread winds onto the bobbin unevenly, loosen

the nut (1) and turn the bobbin winder thread tension

stud (2) to adjust.

(2)

Note

If the thread winds on as shown in A, turn the bobbin

winder thread tension stud (2) clockwise; if it winds on

as shown in B, turn the bobbin winder thread tension

stud (2) counterclockwise.

(1)

0108Q

BAS-341F, 342F

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5. CORRECT USE

5-5. Replacing the bobbin case and threading the thread

CAUTION

If the power switch needs to be left on when carrying out replacing the bobbin, be extremely careful to observe

all safety precautions.

The machine may operate if the foot switch is depressed by mistake, which could result in injury.

(ex. Continuing sewing from a stopping point)

(2)

(3)

30 mm

(4)

0110Q

1202S

1936S

1. Pull the shuttle race cover (1) forward and then open the cover.

2. Lift the bobbin case latch and remove the bobbin case.

3. Insert a new bobbin into the bobbin case, and then pass the thread through the slot (2) and pull it out from the thread

hole (3). Check that the bobbin turns in the direction of the arrow when the thread is pulled at this time.

4. Pass the thread through the lever thread hole (4), and then pull out approximately 30 mm of thread.

5-6. Sewing conditions and thread tension

5-6-1. Sewing conditions

For medium materials

# 50 or equivalent

# 60 or equivalent

0.5 - 1.0

Specifications

Upper thread

For heavy materials

# 20 or equivalent

1.5 - 2.0

Lower thread

Upper thread tension (N)

Lower thread tension (N)

Thread take-up spring height

Thread take-up spring tension(N)

Needle

0.2 - 0.4

8 - 10 mm

6 - 8 mm

1.5 - 2.0

0.4 - 0.6

DP X 17 # 21

2000 rpm

DP X 5 # 16

2000 rpm

Normal sewing speed

The sewing conditions given in the above table may need to be changed depending on the article being sewn.

BAS-341F, 342F

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5. CORRECT USE

5-6-2. Lower thread tension

5-6-3. Upper thread tension

Weaker

Stronger

Weaker

Stronger

(1)

Stronger

Weaker

0112S

1937S

Turn the tension nut (2) (main tension) to adjust the tension

as appropriate for the material being sewn.

Set the lower thread tension to as weak a tension as

possible and so that the bobbin case drops by its own

weight when the end of the thread is held. Turn the

adjusting screw (1) to adjust the tension.

Note

Furthermore, turn the thread nut (3) (sub-tension) to adjust

the remaining length of upper thread to 35 - 40 mm.

If the lower thread tension is too weak, it may not be

possible to cut the lower thread properly during thread

trimming.

5-6-4. Thread take-up spring height

5-6-5. Thread take-up spring tension

Lower

Higher

Stronger

Weaker

1939S

1938S

Adjust the thread take-up spring tension by turning the

tension stud (5) with a screwdriver.

Loosen screw (4) and turn the entire thread take-up unit to

adjust so that the height of the thread take-up spring is 8 -

10 mm

BAS-341F, 342F

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5. CORRECT USE

5-6-6. Pretension tension

1940S

1. Raise the work clamp (1) and open the main tension disc (2).

The thread take-up spring (3) should not operate when the thread is pulled in the direction of the arrow.

2. Set the thread tension for the thread breakage detector pretension (4) to approx. 5 g.

Weaken the thread tension for the machine head pretension (5) as much as possible.

Standard for balance of thread tension

Adjust the thread tensions so that the total tension for the pretensions (4) and (5) is lower than the tension for the thread

take -up spring.

When the thread breakage detector is activated, set to ON DIP switch A – 8.

(Detection precision : DIP switch B – 5, Refer to “ DIP SWTCH “.)

Note

If misoperation of the thread breakage detector continues, repeat the adjustment procedure above.

(Such misoperation is most likely to occur when synthetic fiber yarns are used.)

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6. USING THE OPERATION PANEL

6-1. Explanation of panel

(5)

(1)

(7)

(2)

(8)

(9)

(3)

(10)

(11)

(4)

(6)

1207S

(1) POWER indicator........................When the power is turned on, the indicator lights to show that the power is on.

(2) PROGRAM No. display..............Displays the program number 00 - 99.

(3) Program select switch.................Used to select the program number when reading a program from or writing a

program to disk.

(4) Program Read/Write switch .......Used to read a program from floppy disk, or to write a newly programmed stitch

pattern to floppy disk.

Up to ten patterns (00 - 99) can be stored on each disk.

(5) Display screen.............................Used to display data such as menus, errors and memory switch settings.

(6) Menu switch.................................Used to select the desired menu (scale, speed, bobbin thread counter, split No.).

One of the indicators (7) - (11) illuminates to indicate the menu selected, and the

setting for that menu them appears on the display screen (5).

The illuminated indicator changes in the following order each time the switch is

pressed.

X-SCALE indicator (7)

Y-SCALE indicator (8)

SPEED indicator (9)

B.T. COUNTER indicator (10)

SPLIT NO. indicator (11)

(7) X-SCALE indicator .....................Illuminates when X-scale mode has been selected using the menu switch (6).

(8) Y-SCALE indicator......................Illuminates when Y-scale mode has been selected using the menu switch (6).

(9) SPEED indicator .........................Illuminates when speed mode has been selected using the menu switch (6).

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6. USING THE OPERATION PANEL

(5)

(13)

(14)

(10)

(11)

(12)

(17)

(15)

(6)

(16)

1208S

(10) Bobbin Thread COUNTER............Illuminates when bobbin thread counter mode has been selected using the menu

indicator switch (6).

(11) SPLIT NO. indicator........................Illuminates when split No. mode has been selected using the menu switch (6).

(12) Dial .................................................The setting shown on the display screen (5) can be changed by turning this dial

while pressing the STEP BACK switch (17).

(13) Bobbin Thread SET switch.................Used to store the number of work pieces displayed in the bobbin thread counter

to floppy disk.

(14) Bobbin Thread CHANGE ..............Used to continue sewing after replacing the bobbin thread.

switch

(An alarm will sound when the counter reads <000>. Sewing is not possible when

the counter reads <000>.) (Refer to "6-8. Using the bobbin thread counter".)

(15) TEST switch ...................................Used to move the feed mechanism only in order to confirm a programmed stitch

pattern.

(16) TEST indicator................................Lights when the TEST switch is pressed.

(17) STEP BACK switch........................ Used when winding a fresh bobbin, or when correcting a stitch pattern due to a

(RESET switch)

broken needle thread.

Also used to reset error displays.

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6. USING THE OPERATION PANEL

6-2. Using the floppy disk

No. of stitches

Data type

Write

enabled

Data resolution

0.05 mm/pulse

0.1 mm/pulse

Disk

2HD

Format

programmed

20,000 stitches per

300E type

(300F type)

pattern 100 pattern

Up to a maxi-mum

of 360,000 stitches

Yes

1.44 MB

Tajima embroidery

data

50,000 stitches per pattern

4,000 stitches per

pattern 10 patterns

Up to a maximum of

40,000 stitches

2,000 stitches per

pattern 10 patterns

Up to a maximum of

20,000 stitches

Old 300A type

Old 300 data

Yes

Automatically

formatted

2DD

0.2 mm/pulse

• The above four types of data can all be read, but when writing to disk, all data is automatically converted to 300F,

300E data when writing to 2HD disks and 300A data when writing to 2DD disks.

• When using a 2HD disk, use a disk which has been pre-formatted as a 1.44 MB disk. (The programmer can be used

to format these disks. Refer to the programmer instruction manual for details.)

• TFD embroidery data can be embroidered after it has been converted by the programmer to BAS-300F and BAS-

300E data.

• Restriction on using 2DD floppy disks.

In order to maintain compatibility with the old 300A series, the following restrictions have been placed on the use of

the new functions which have been added to the E series.

Applicable

command

Restricted function

Resolution

A series (2DD)

0.1 mm/pulse

F, E series (2HD)

0.05 mm/pulse

2 types

(400 and 1,200 revolutions)

4 types (400, 600, 800and

1,200 revolutions)

[668] L

[669] L

[220] L

[230] L

[221] L

[231] L

Low-speed conversion

Split function

during embroidering

Not available

Available

Needle down stop for split

Expansion option output

Not available

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6. USING THE OPERATION PANEL

Setting the floppy disk

(2)

(5)

(4)

Unlocked writing possible

Window open

(3)

(1)

(6)

locked writing possible

1210S

1209S

1211S

1. Turn on the power switch (1). The POWER indicator (2) will illuminate and the machine model number will appear on

the display screen.

2. Hold the disk (3) with the label up and the shutter to the front, and insert the disk into the drive (4). It will click into

place.

3. To eject the disk, press the eject button (5).

Note

• Slide the write protector (6) on the back of the disk up (the window opens) to lock the disk and prevent accidental

erasure of the disk contents.

• Inserting the disk into the drive upside down or backwards may damage the drive and will prevent reading or

writing of data.

• Be sure to store your disks away from any magnets or magnetic sources, including radios, televisions, tele-

phones, and other devices. Magnetism can erase or damage disk contents. Also, be careful to prevent

exposure of the disk to oil or dust.

• Be sure to make a copy of the floppy disk containing sewing data and keep the master floppy disk.

• When the R / W operation is not in operation, eject the floppy disk from the floppy disk drive and keep it in a case

for floppy disk only to prevent exposure of the disk to dust.

When the “E.4F” error (Reading error of sewing data) occurs very often;

1. Clean the floppy disk drive using the cleaning disk.

2. Read the sewing data. If the “E.4F” error occurs again, the floppy disk may be damaged. In this case, clean the floppy

disk drive with the cleaning disk again.

3. Read the sewing data from the master floppy disk and write it in a new floppy disk. Do not use any damaged floppy

disks again.

How to use the cleaning disk

1. Insert the cleaning disk into the floppy disk drive.

2. Select a program number (0-9), and press the “R/W” switch. If you select the same program number for cleaning every

time, the same location of the cleaning disk is used and the lifetime of the cleaning disk will become short. Next time

you clean it, select a different number.

3. After the cleaning is completed, the “E.4F” error appears. The error appears because the cleaning disk has no data.

This is normal.

4. Cancel the error and eject the cleaning disk.

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6. USING THE OPERATION PANEL

6-3. Using the program R/W (Read/Write) switch

Programmed stitch patterns stored on floppy disk can be read into memory, and newly programmed patterns can be

written to disk for permanent storage and later recall.

Insert the floppy disk (1) containing or which is to contain

1212S

the programmed stitch pattern.

(7)

To READ a pattern to memory

Press the program select switch (3) on the operation

panel. The program number will then appear in the

(1)

PROGRAM NO. display (2). After selecting the desired

program number, press the R/W switch (4). The disk drive

indicator (5) will illuminate and a "P" will appear on the

(5)

PROGRAM NO. display (2) to indicate that the data is

being read. When the alarm sounds and the disk drive

indicator (5) turns off, the program number will then flash

in the PROGRAM NO. display (2) instead of the "P" to

indicate that the reading of the data is complete.

To WRITE a pattern to disk

Press the program select switch (3) on the operation

(2)

panel to select the desired program number. After

programming the pattern using the stitch programmer,

(3)

(4)

press the R/W switch (4) The disk drive indicator (5) will

illuminate and a "P." will appear on the PROGRAM NO.

display (2) to indicate that the data is being written. When

the alarm sounds and the disk drive indicator (5) turns off,

the program number will then flash in the PROGRAM NO.

display (2) instead of the "P" to indicate that the writing of

the data is complete.

1213S

1215S

If an error message is displayed

1214S

If an error message code is displayed in the display (7),

and alarm will sound.

Press the emergency stop switch (6) on the front of the

machine to stop sewing machine operation, and then

refer to and follow the error code list on page 63.

(7)

Clearing the error

(8)

1. Turn the EMERGENCY STOP switch (6) clockwise

and then pull it forward to release it.

2. Press the STEP BACK (RESET) switch (8) on the

operation panel

(when memory switch No. 0d is ON).

If memory switch No. 0d is OFF, press the

EMERGENCY STOP switch (7) once more to release

it.

1941S

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6. USING THE OPERATION PANEL

6-4. Using the TEST switch (Checking the sewing pattern)

Use the TEST switch to begin sewing again from any desired point when the thread breaks or the bobbin thread runs out.

1. Press the TEST switch (15). The indicator (16) will

1215S

1217S

light.

2. If the work clamp is raised, depress the work clamp

lifter pedal (2) to lower the work clamp.

3. Press the starting pedal (1).

(16)

Note

After the feed mechanism has returned to the

home position, it will then move the sewing start

position and the program number will stop

flashing.

This only occurs the first time that a program is

selected.

(17)

(15)

4. Press the starting pedal (1). (The needle will remain

stationary as the work clamp advances through the

pattern at low speed one stitch at a time. Press the

presser lifter pedal (2) to fast forward.

• If the STEP BACK switch (17) is pressed while moving

at low speed when memory switch No. 20 is ON, the

work clamp will move in the forward direction in steps

of 100 stitches.

5. When the work clamp reaches the desired position,

press the TEST switch (15). The work clamp will stop,

and the test indicator (16) will go out. If the work clamp

was stopped too early, press theTEST switch (15)

again to proceed.

• If the work clamp was stopped too late, press the

STEP BACK switch (17) to advance the work clamp

one stitch at a time.

1942S

Resuming operation from a stopping poing

6. Sewing will start when the starting pedal (1) is

pressed.

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6. USING THE OPERATION PANEL

6-5. Using the emergency stop switch

Press the emergency stop switch to immediately stop the sewing machine during actual sewing or when in the test

mode.

Clearing the error

1941S

1. Turn the EMERGENCY STOP switch (6) clockwise

and then pull it forward to release it .

2. Press the STEP BACK (RESET) switch (17) on the

operation panel. (The buzzer will stop sounding.)

3. If you do not wish to resume sewing, press the

EMERGENCY STOP switch (6) once more to release

it, and then press the STEP BACK (RESET) switch

(17) so that the operation panel display flashes. The

sewing machine will then be ready for the next sewing

operation.

If memory sewing No. 0d is OFF, press the EMER-

GENCY STOP switch (6) once more to release it.

(17)

1215S

1219S

Continuing sewing from a stopping point

If you press the EMERGENCY STOP switch after the

thread breaks or the bobbin thread runs out during sewing,

you can then resume swing from the point where the

thread broke or ran out.

1215S

1. Press the EMERGENCY STOP switch to release it.

2. Press the STEP BACK (RESET) switch (17) to trim

the thread.

3. Press the STEP BACK (RESET) switch (17) once

more.

(15)

(17)

(The sewing machine will move stitch by stitch in the

reverse direction while this switch is pressed.)

If the sewing machine moves back too far, press the

TEST switch (15) to move it forward again. Press the

TEST switch (15) again to stop the machine.

4. After you have reached the desired position, depress

the starting pedal to start sewing.

(18)

1200S

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6. USING THE OPERATION PANEL

6-6. Adjusting the sewing SPEED control

The sewing speed can be changed in steps of 100 rpm to the appropriate speeds for each stitch length setting.

1. Press the MENU switch (6) until the SPEED indicator

(9) illuminates.

2. While pressing the STEP BACK switch (17), turn the

dial (12) until the desired speed is displayed.

• The display will change in steps of 10 rpm.

(9)

(17)

(6)

(12)

1215S

1220S

6-7. Changing the X-SCALE and Y-SCALE settings

1. Press the MENU switch (6) until the X-SCALE

indicator (7) or the Y-SCALE indicator (8) illuminates.

2. While pressing the STEP BACK switch (17), turn the

dial (12) until the desired ratio flashes on the display.

• The scale setting is displayed as a percentage.

3. The program number will flash, and after the home

position is detected the flashing will stop.

(7)

(8)

(17)

(6)

(12)

1215S

1221S

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6. USING THE OPERATION PANEL

6-8. Using the bobbin thread counter

Set the bobbin thread counter to display the number of pieces of the selected pattern which can be sewn with the amount

of thread on the bobbin to avoid running out of bobbin thread in the middle of a patern.

(5)

(13)

(14)

(10)

(6)

(17)

(12)

1222S

1. Press the MENU switch (6) until the B.T. COUNTER indicator (10) illuminates.

• The bobbin thread counter can be set to any number from <001> to <999>. If the counter is set to <000>, sewing

continues irrespective of the amount of bobbin thread remaining.

2. While pressing the STEP BACK switch (17), turn the dial (12) to set the number of articles to be embroidered.

3. Insert the floppy disk and press the bobbin thread SET switch (13). An alarm will beep twice. This will record the

number of work pieces shown in the counter (5) to the disk.

4. The number shown in the counter (5) will decrease one each time the stitch pattern is completed. When the number of

patterns shown in the counter is sewn, the counter (5) will red <000>, and an alarm will sound. (The sewing machine

will not start even if the start switch is pressed.)

5. Press the bobbin thread change switch (14) and replace the bobbin. The alarm will stop, and the number of work

pieces set in step 3 will be displayed again in the counter (5).

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6. USING THE OPERATION PANEL

6-9. Using production counter

Both PRO. NO. and B.T. COUNTER displays are available for the five-digit PRODUCTION counter.

(5)

(13)

(14)

(2)

(10)

(11)

(15)

(6)

(16)

(12)

(17)

1223S

1. While pressing the TEST switch (15), press the B.T. SET switch (13) The B.T. COUNTER indicator (10) and the SPLIT

NO. indicator (11) will both illuminate, and the production counter value will appear on the program number display (2)

and on the display screen (5).

• Press the B.T. CHANGE switch (14). The PRODUCTION counter will display <00000>.

• The production counter can be set to a value between <00000> and <99999> by turning the dial (12) while

pressing the STEP BACK switch (17).

2. Depress the start switch to start embroidering.

3. Press the TEST switch (15) or the MENU switch (6). The TEST indicator (16) will switch off and the contents of each

display screen will return to the normal display.

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6. USING THE OPERATION PANEL

6-10.Using single split mode

By using single split mode, it is possible to change up to 100 patterns immediately.

(5)

(17)

(6)

(12)

1225S

1224S

1215S

1. Move DIP switch B No. 1 to the ON position. This will activate single split mode.

(Refer to "10.DIP SWITCH".)

2. Turn on the power read in the patterns which have been programmed for split sewing.

3. Press the MENU switch (6) until the SPLIT NO. indicator (11) is illuminated. "1" will then appear in the display screen

(5). Then, while pressing the STEP BACK switch (17), turn the dial (12) to change the contents appearing on the

display screen (5) in order.

(Example) If three patterns have been programmed for split sewing, the number on the display screen changes in

the following order: "1"

“2"

"3"

"1"

"2" ...

4. When the starting switch is pressed, only the pattern displayed on the display screen (5) will be sewn.

Note

As to split sewing, refer to the instruction manual of the “electronic programmable pattern tacker programmer”.

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6. USING THE OPERATION PANEL

6-11. Shifting a stitch pattern

• Programs which have already been programmed can be moved up, down and to the left and right.

(However, such patterns will be reset if the power supply is turned off or the program number is changed.)

• The feed position can be set to the any position desired.

(5)

(7)

(2)

(8)

(10)

(4)

(16)

(12)

(15)

(6)

1226S

1943S

1. After the program data has been read, depress the start switch to move the feed mechanism to the sewing start

position. If you carry out the following procedure while the program number display (2) is flashing (if the start switch

has not been depressed)

stitch pattern.

(The feed position can be set to any position, but it will not be possible to move the

2. Press the MENU switch (6) until the B.T. COUNTER indicator (10) illuminates.

3. Press and hold the TEST switch (15) and press the R/W switch (4). The test indicator (16) will light, and <

appear in the counter (5).

> will

4. Press the MENU switch (6) so that either the X-SCALE indicator (7) or Y-SCALE indicator (8) illuminates.

5. Turn the setting dial (12) to move the feed mechanism one pulse at a time.

• If the setting dial is turned counterclockwise while the X-SCALE indicator is illuminated, the feed mechanism will

move to the right.

• If the setting dial is turned clockwise while the X-SCALE indicator is illuminated, the feed mechanism will move to

the left.

• If the setting dial is turned counterclockwise while the Y-SCALE indicator is illuminated, the feed mechanism will

move up.

• If the setting dial is turned clockwise while the Y-SCALE indicator is illuminated, the feed mechanism will move

down.

6. When the TEST switch (15) is pressed after the above fine adjustments have been made, the TEST indicator (16) and

display window (5) will both switch off and movement of the stitch pattern will be completed.

Note

When moving the stitch pattern, the sewing start position can be moved to any desired point within the sewing area,

but if the pattern goes outside the sewing area, an error will occur during sewing and you will not be able to sew the

pattern. Give consideration to the pattern as a whole when moving it.

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7. SEWING

CAUTION

Turn off the power switch at the following times, otherwise the machine may operate if the foot switch is

depressed by mistake, which could result in injury.

• When replacing the bobbin and needle

• When not using the machine and when leaving the machine unattended

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 be machine.

7-1. Before starting sewing....

•

Check that the needle bar is at the highest position.

Turn the machine pulley so that the index mark (1) on

the pulley is almost aligned with the point where belt

cover U and belt cover D meet.

If the machine is started while the index mark (1) is not

correctly aligned, error message "E-22" will be

displayed (only when memory switch No.14 is on).

1944S

7-2. Sewing operation

1. Turn the power switch on.

(The power indicator on the operation panel will light.)

2. Insert the floppy disk (3).

3. Press the PRO. No. selection switch (4) to select the

desired program number.

4. Press R/W switch (5).

The floppy disk drive indicator will light and the

PROGRAM NO. display (6) will show a “P” while

the data is being read. When reading is completed,

an alarm will sound and the indicator will go out,

then the PROGRAM NO. display (6) will blink the

program number.

(6)

(3)

(4)

(5)

1229S

1213S

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7. SEWING

5. Step on the presser lifter switch (2) to raise the presser

foot.

6. Insert the work piece under the work clamp, and press

the presser lifter switch (2) to lower the clamp.

7. Press the starting pedal (1).

Note

The work clamp will return to the origin, and will

then advance to the sewing start position and

blinking will stop. This is only required the first

time a program is sewing.

8. Press the starting pedal (1) again to start sewing.

After sewing is completed, the thread cutter will

automatically operate, then the work clamp will rise.

1942S

Note

When the power is turned on after once being turned off, the same pattern of sewing can be continued since the

machine will stores the sewing data from the last time.

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8. MAINTENANCE AND INSPECTION

CAUTION

Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the foot

switch is depressed by mistake, which could result in injury.

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.

8-1. Cleaning the shuttle hook

(5)

1945S

1936S

1946S

2. Open the large shuttle hook set

claw (2) in the direction indicated

by the arrow, and then remove the

large shuttle hook (3) and the inner

shuttle hook (4).

3. Clean all the dust and thread ends

from around the driver (5), the top

of the shuttle hook thread guide

and the shuttle race.

1. Pull the shuttle hook cover (1)

forward to open, and then remove

the bobbin case.

8-2. Lubrication

Note

• Fill the machine with oil when the oil level is down to about one-third full in the oil sight glass.

• If oil is not added and the oil drops below this level, there is the danger that the machine may seize during

operation.

• Be sure to let the machine operate for a while after adding the oil.

• Use only specified Brother oil (Nisseki Mitsubishi Sewing Lube 10N; VG10) for the machine oil.

1926S

1927S

1. Fill the arm-side oil tank with oil.

2. Fill the bed-side oil tank with oil.

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8. MAINTENANCE AND INSPECTION

3. If using the liquid cooling tank (1), fill it with silicon oil

(100 mm²/S).

1929S

8-3. Draining the oil

1. Remove and empty the waste oil container (1)

whenever it is full.

2. After emptying the waste oil container (1), screw it

back into its original position.

1947S

8-4. Cleaning the control box air inlet port

Use vacuum cleaner to clean the filter in the air inlet port

(2) of the control box (1) at least once a month.

If the machine is used while the air inlet port is blocked,

the inside of the control box will overheat.

When this happens, the overheating error code (“E-d”)

will be displayed and you will not be able to operate

the sewing machine.

1948S

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8. MAINTENANCE AND INSPECTION

8-5. Cleaning the eye guard

Wipe the eye guard clean with a soft cloth.

Note

Do not use solvents such as kerosene thinner to clean

the eye guard.

1235S

8-6. Checking the needle

Always check that the tip of the needle is not broken

before starting sewing.

1236S

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9. STANDARD ADJUSTMENTS

CAUTION

Maintenance and inspection of the sewing

machine should only be carried out by a qualified

technician.

Hold the machine head with both hands when

tilting it back or returning it to its original position.

Furthermore, after tilting back the machine head,

do not push the face plate side or the pulley side

from above, as this could cause the machine head

to topple over, which may result in personal injury

or damage to the machine.

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

foot switch 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 and knife

If the power switch needs to be left on when

carrying out some adjustment, be extremely

careful to observe all safety precautions.

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.

9-1. Adjusting the needle bar height

(1)

1949S

1237S

Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug, loosen the screw

(2) and then move the needle bar up or down to adjust so that the second reference line from the bottom of the needle

(reference line A) is aligned with the lower edge of the needle bar bush (1).

* If using a DP X 5 needle, use the highest reference line (reference line a).

9-2. Adjusting the needle bar lift amount

A(1)

1950S

1239S

Turn the machine pulley to raise the needle bar from the lowest position until the lowest reference line on the needle

(reference line B) is aligned with the lower edge of the needle bar bush (1). Then loosen the screw (2) and move the

driver (3) to adjust so that the tip of the shuttle hook is aligned with the needle center line.

* If using a DP X 5 needle, use the second reference line from the top of the needle (reference line b).

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9. STANDARD ADJUSTMENTS

9-3. Adjusting the needle clearance

0.01 - 0.08 mm

0138Q

1951S

Turn the machine pulley to align the tip of the shuttle hook with the needle center line. Then loosen the set screw (1)

and turn the eccentric shaft (2) to adjust so that the clearance between the needle and the shuttle hook is 0.01 - 0.08 mm.

9-4. Adjusting the driver needle guard

Needle center line

Tip

(1)

1242S

1952S

0135Q

Turn the machine pulley to align the tip of the shuttle hook with the needle center line. Then loosen the set screw (2)

and turn the eccentric shaft (3) to adjust so that the driver needle guard (1) contacts the needle. If the needle contact

pressure is too great, skipped stitches may occur. On the other hand, if the driver needle guard (1) is not touching the

needle, the tip of the inner shuttle hook will obstruct the needle, resulting in an excessively high amount of friction.

9-5. Adjusting the shuttle race thread guide

1953S

The needle groove of the shuttle race thread guide (1) should be aligned with the center of the needle plate hole, and the

needle center and section A should be aligned.

Note

If the shuttle race thread guide is in the wrong position, thread breakages, soiled thread or catching of the thread may occur.

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

9-6. Adjusting the movable knife

1955S

1954S

Loosen the nut (2) and move thread trimmer rod L (3) to the left or right to adjust so that the V section A of the movable

knife (1) is aligned with the index mark B on the needle plate when the machine is at the stop position.

■ Replacing the movable and fixed knives

1956S

1957S

1. Remove the screws (1) and the feed plate (2). Then tear off the auxiliary plate sheet (3). Remove screws (4) and (5),

and needle plate (6). Now disconnect the thread cutter connecting rod (7) from stud (8). (Figure is BAS-342F.)

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

1958S

2. Remove the movable knife, and replace it with a new movable knife. Now check the cutting edge of the movable

knife (9) and the fixed knife (10). If necessary, use the provided movable knife washer (11) (T=0.4, T=0.5, T=0.6) to

adjust the knives so that they cut properly. (Figure is BAS-342F.)

0149S

1247S

Fig. 1

Movable knife

(9)

Cutting

edge

Fixed knife

Cutting edge

0148Q

0150Q

A. After the movable knife and fixed knife are properly engaged, tighten the screw as shown in Fig.1.

B. Turn the movable knife (in the direction of the arrow) while the screw is still tightened.

C. Loosen the screw.

D. Turn the movable knife (in the direction of the arrow) while the screw is still loosened.

Repeat above steps A, B, C and D four or five times to maintain the cutting performance of the knife.

3. Install the fixed knife (10) 0.5 mm away from needle

hole plate (12).

1959S

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

1960S

4. Fit the thread cutter connecting rod (7) on connecting lever pin (8), and install needle plate (6).(Figure is BAS-342F.)

* When fitting the connecting rod (7) on the connecting lever pin (8) and before tightening screws (4) and (5), move the

needle plate back and forth a little bit to confirm that the movable knife (9) is pulled by the connecting rod (7).

5. Stick the auxiliary plate sheet (3).

When sticking, adjust the edge of auxiliary plate sheet

to the ridgeline in the rear chamfering of needle sub

panel (12).

One month is a standard to replace the sheet.

Chamfering

1961S

9-7. Presser foot adjustment

Turn the pulley by hand to lower the presser foot to the down position, and then proceed with the steps below.

1. Loosen screw (1), set the bottom of the presser foot

1962S

(2) lightly against the work piece, and then tighten

screw (1).

Note

If the presser foot is lowered too far, the work piece will

shift when sewing. Also, if the presser foot is too high,

skipped stitches may occur.

2. Turn the pulley by hand, and make sure the needle

enters the center of the needle hole in the presser foot

(2). If the needle is not aligned with the center of the

needle hole, remove cap (3), loosen screw (4), and

turn the presser foot (presser bar) to adjust.

If the needle projects past the presser foot

when the presser foot is raised, injury may

result.

Turning

Down

■ ^{To turn the pulley by hand}

Press

Simply press in on the pulley (1) to turn it by hand. To

turn the pulley, press lever (2) down.

• After turning the pulley by hand, be sure to press

the lever down to return the pulley to the normal

operating position.

1931S

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

9-8. Changing the presser foot lift

(9)

3 - 5 mm

(8)

(6)

0.5 - 1 mm

(7)

1963S

1254S

1252S

Adjusting presser foot lift to 3 - 5mm

1. Loosen the screw (2) and open the intermittent cover (3).

2. Loosen the nut (4) and adjust the intermittent presser connecting rod (5) position.

(When the intermittent presser connecting rod is raised, the lift will increase. When lowered, the lift will decrese.)

Adjusting presser foot lift to 5 - 8 mm

1. Turn the upper shaft to set the presser foot to its lowest point. Loosen the screw (9) of intermittent presser arm (R) (8).

Adjust the clearance between the presser lifter (6) and the presser bar bush (7) to 0.5 - 1 mm.

2. Loosen the nut (4) and adjust the intermittent presser connecting rod (5) position.

(When the intermittent presser connecting rod is raised, the lift will increase. When lowered, the lift will decrese.)

3. Loosen the presser foot screw and adjust the height of the presser foot so that it is 0.5mm above the top of the

material being sewn when the presser foot is lowered.

1964S

If vertical movement of the presser foot is not required

1. Remove the face plate (10).

2. Remove the stud screw (11) and re-attach the intermitte connecting rod (12) to the upper screw hole (14) of the

intermittent presser arm F (13).

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

9-9. Adjusting the wiper

(4)

(1)

(3)

(2)

(5)

(6)

approx. 2 mm

approx.

112 mm

15 mm

1257S

1258S

1259S

1. When the thread wiper solenoid plunger (1) is driven to the full stroke, the wiper (2) should be 15 mm in front of the

needle center. Loosen screws (3) and shift the entire solenoid bracket (4)up or down to adjust.

The standard height from the solenoid bracket (4) bottom to the needle plate top is approximately 112 mm.

2. When the wiper (2) is operated and aligned with the center of the needle bar, the distance from the wiper (2) to needle

tip should be approximately 2 mm. Loosen screw (5) and move the wiper (2) in or out to adjust. As shown in Fig. A,

make sure the wiper (2) does not strike the presser foot (6) or needle.

Note

Check that the wiper (2) is not touching the finger guard.

9-10. Adjusting the needle up stop position

• The needle up stop position has been adjusted so that

the tip of the needle stops 17.5 – 19.5 mm above the

top of the needle plate.

• If adjustment is necessary, loosen the screw (2) at the

"U" mark of the machine pulley (1) and adjust the

position of the machine pulley (1). The machine pulley

(1) stops later if it is turned clockwise, and it stops

earlier if it is turned counterclockwise.

Note

• The screw (3) is used by the needle down

detection function and should not be loosened.

• The screw (4) is a screw for detecting the machine

top position, and should not be loosened.

• If the index mark is not inside the mark when be

displayed (when memory switch No.14 is on). Turn

the machine pulley to move the index mark to the

correct position and then start the sewing machine.

1965S

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

9-11. Checking the input sensor and DIP switch input

(5)

(4)

(7)

(1)

(3)

(2)

(6)

1273S

1274S

1. When the SPLIT NO. indicator (1) is illuminated and the R/W switch (3) is pressed while the TEST switch (2) is being

pressed, the X-SCALE indicator (4) will illuminate and the state of the X home position signal will appear on the display

screen (5).

When sensor is ON

When sensor is OFF

1283S

1282S

2. Each time the MENU switch (6) is pressed, a different indicator will illuminate and the operating condition for the

corresponding item will appear on the display screen.

• When X-SCALE indicator is illuminated

• When Y-SCALE indicator is illuminated

• When SPEED indicator is illuminated

• When B.T. COUNTER indicator is illuminated

• When SPLIT ON. indicator is illuminated

X home position sensor

Y home position sensor

Needle up signal (synchronizer)

24-section signal (synchronizer)

Needle down signal (synchronizer)

3. If the settings for DIP switch A at the side of the operation panel are changed at this time, the number of the changed

switch will appear in the top row of the program number display (7).

1284S

4. If the settings for DIP switch B are changed at this time, the number of the changed switch will appear in the bottom

row of the program number display (7).

1285S

5. Press the TEST switch (2). The display will return to normal.

Note

You need to move the DIP switch while the power is still turned on in order to check the DIP switch operation.

However, the power must always be turned off before DIP switch settings can be changed.

BAS-341F, 342F

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9. STANDARD ADJUSTMENTS

9-12. Checking the input voltage

1. Turn on the power switch.

2. Press the menu switch (1) until the X-SCALE indicator (2) illuminates.

(1)

(2)

1276S

1275S

3. While pressing the TEST switch (3), press the R/W switch (4)

(3)

(4)

1278S

1277S

4. If the input voltage is normal, the input voltage conditions will be shown in the display as indicated at right.

200-V specifications

220-V specifications

090 - 110

100 - 120

"100" is displayed when the input voltage is 200 V.

230-V specifications

100-V, 380-V, 400-V

105 - 125

100 - 120

"110" is displayed when the input voltage is 100 V (for

100-V specs.), 380 V (for 380-V specs.).

5. Press the TEST switch (3) once more to return the display to the normal condition.

9-13. Clearing all memory settings

If the sewing machine stops operating normally, the cause may be that an incorrect memory setting may have been

made by means of the memory switch, for instance. In such cases, carry out the following procedure to clear the memory,

and also check the DIP switch settings.

While pressing the R/W switch (1), turn on the power. This will clear all of the memory setting.

Note

This operation causes memory switch settings to be returned to their initial settings, and also clears all contents of the

memory such as sewing datas.

(1)

1279S

1278S

BAS-341F, 342F

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10. DIP SWITCH

Note

All DIP switches are set to OFF at the time of shipment.

When changing DIP switch, the power must be off.

10-1. Panel DIP switch functions

1224S

DIP switch A

When ON

After sewing is complete, the work clamp is raised by the operator and does not rise automatically.

SW No.

A-1

• Various setting combinations for DIP switch No. 2, No. 3 and No. 4 can be used to change the way the work clamp is

raised and lowered.

• The operation mode can be changed using the two-stage work clamp switch. (Special order)

A-2

A-3

A-4

Type

Function of work clamp pedal

Pneumatic

Work clamp and presser foot rise and lower simultaneously.

Only work clamp rises and lowers; presser foot lowers when starting

switch is pressed.

For split-type presser foot, the left/right order changes alternately.

Only work clamp rises and lowers; presser foot lowers when starting

switch is pressed.

Work clamp and presser foot rise and lower simultaneously.

Lowers in the order right work clamp, left work clamp, presser foot;

reverse order when rising.

Lowers in the order left work clamp, right work clamp, presser foot;

reverse order when rising.

Lowers in the order left and right work clamp, presser foot; reverse order

when rising.

BAS-341F, 342F

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10. DIP SWITCH

DIP switch A

SW No.

A-5

When ON

After sewing is completed, work clamp does not automatically rise (only in split mode)

Clamping force output is produced (Inner clamping device available as an option)

A-6

Single-pedal operation using the starting switch; when the starting switch is pressed, the work clamp

drops, and when it is released, sewing starts.

A-7

A-8

Thread breakage detector device is activated

DIP switch B

SW No.

B-1

When ON

Single split mode activated

B-2

Feed movement when not using work clamp, activated

Thread is not trimmed after an emergency stop.

Needle cooler output is produced.

B-3

B-4

When a rotating-type thread breakage detector device is used, detection precision is increased from 8 to 14.

When a fiber-type thread breakage detector device is used, detection precision is increased from 5 to 10.

B-5

B-6

Fiber-type thread breakage detector device is ON, and DIP switch A - 8 is ON (available as an option)

When using a 3-stage pedal

If DIP switch A -2 is ON at the same time, the presser foot will drop at the same time that work clamp drop.

B-7

B-8

Feeding speed is switched to high speed.

BAS-341F, 342F

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10. DIP SWITCH

10-2. DIP switches inside the control box

DANGER

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet

before opening the face plate of the control box. Touching areas where high voltages are present can result in

severe injury.

Main circuit board

1966S

■ ^{DIP switch C}

C-1

C-2

C-3

Model setting

BAS-311E

BAS-326E

BAS-343E

BAS-341F

BAS-342F

BAS-311EL

SW No.

C-4

When ON

Controlled sewing area becomes 1200 mm X 400 mm

For pneumatic type, set to ON when the connection has been changed so that the work clamp remains

raised when the power is turned off.

C-5

C-6

When using an air-driven intermittent work clamp

C-7

C-8

BAS-341F, 342F

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10. DIP SWITCH

DIP switch D

SW No.

D-1

When ON

The first two stitches at the sewing start will be sewn at low speed (approx. 260 rpm)

D-2

The last two stitches at the sewing end will be sewn at low speed (approx. 260 rpm)

D-3

D-4

The last two stitches at the sewing end will be sewn at low speed (approx. 700 rpm)

D-5

D-6

Slow-speed sewing at the sewing start will be canceled

When the upper shaft is stopped, the motor will change direction and the needle bar will return

to the vicinity of the needle up stop position*

D-7

D-8

During an emergency stop, the thread is trimmed and the needle bar stops in the raised position.

* When the motor operates in reverse to raise the needle, the thread take-up will stop at a position which is lower than

its normal stopping position. As a result, the thread take-up will rise slightly at the sewing start, and this may result in

the thread pulling out under certain conditions.

BAS-341F, 342F

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11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

11. CHANGING SPECIAL FUNCTIONS AND

USING THE MEMORY SWITCHES

The functions of the switches on the operation panel can be changed to carry out special functions.

* All of the memory switches are set to OFF at the time of shipment.

Note

The following are special uses. All of the memory switch is usually set to OFF.

(5)

(7)

(6)

(3)

(4)

(2)

(1)

1281S

1. Turn on the power switch.

2. While pressing the TEST switch (1), press the STEP BACK switch (2) to switch to setting mode.

3. Press the program select switch (4) so that the number displayed on the display screen (3) matches the switch number

(00 - 3F) for the function that you would like to select from the table.

4. Press the STEP BACK switch (2) to switch the setting appearing in the display screen (5) from OFF to ON.

1286S

If pressed once more:

1287S

If the B.T. CHANGE switch (6) is pressed at this time, all memory switch settings will be changed to OFF.

5. Press the TEST switch (1). The display will return to normal.

Note

The following steps set the memory switch settings separately for each program number.

6. Once the program data has been read from the floppy disk, change to memory switch setting mode and then press the

B.T SET switch (7). The buzzer will sound twice, and the current memory switch settings will be written to the floppy

disk.

BAS-341F, 342F

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11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (00 - 0F)

Switch No.

When ON

When moving to the home position, the feed plate moves in the order X

moves in the order Y X.

When moving to the home position, the feed plate moves in the order Y

moves in the order X Y.

Y and the start position

X and the start position

memo-00

memo-01

The forward position becomes the home position, and movement is in the order Y

X Y.

X and

memo-02

Use when there is an obstacle at the center of the work clamp.

memo-03

memo-04

memo-05

memo-06

memo-07

memo-08

Eject device operates. (Eject device is available by special order.)

Needle stops in up position during emergency stop. (Needle normally stops in down position.)

When sewing is finished, the feed plate moves via the machine home position to the start position.

After the final stitch, the work clamp rises and then the feed plate returns to the start position.

Intermittent work clamp is not used (does not rise).

When using an inner clamping device, the clamping presser is ON for 1/4 and OFF for 3/4 of the

pattern. (Inner clamping device is available as an option.)

memo-09

memo-0A

memo-0b

memo-0c

memo-0d

memo-0E

Changes the wiper to air drive. (Air wiper is availabe as an option.)

Jog feeding becomes faster during programming.

ON when a two-stage tensioner is used. (Two-stage tensioner is available as an option.)

Single-pedal operation by means of two-stage work clamp switches. DIP switch A-2 is ON

Clearing the emergency stop switch action is carried out using the STEP BACK switch.

Test feeding is carried out at the same speed as normal sewing. (For checking feed operation)

After sewing is finished, the work clamp automatically opens and closes once. (practice operation)

If memo-0E is ON, the work clamp opens and closes twice.

memo-0F

BAS-341F, 342F

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11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (10 - 1F)

Switch No.

memo-10

memo-11

When ON

Milling device can be used (available as an option)

Bobbin thread counter and production counter are adjusted when thread is trimmed.

Work clamp is lowered by pressing work clamp first stage switch twice, without using work clamp

memo-12

second stage switch. When DIP switch A-2 is ON, work clamp lowers in the order right

when OFF, work clamp lowers in the order left right. Order is opposite when rising.

left;

When work clamp is lowered, the starting switch causes locking; if the switch is released before

locking, the work clamp rises

memo-13

memo-14

When DIP switch A - 2 is ON, work clamp lowers in the order right

left; when OFF, work clamp

lowers in the order left

right. Order is opposite when rising

Needle up error detected.

ON when machine is equipped with signal tower indicator. (This indicator is available by special

order.)

memo-15

memo-16

memo-17

ON when machine is equipped with thread nipper. (Thread nipper is available by special order.)

ON when machine is equipped with reset switch. (Reset switch is available by special order.)

Starting switch causes work clamp to drop in order right

order as starting, and for backward control the work clamp rises in the order left

left

forward control is in the same

right using

memo-18

memo-19

memo-1A

work clamp first stage switch (when DIP switch A-2 is ON). When OFF, the left and right orders are

reversed.

Produces two work clamp signal outputs (right and left work clamp) so that a two-position air valve

can be used. (Two-position air valve is available by special order.)

When using a triple pedal (DIP switch B-7 is also ON), the right is used exclusively to detect the

home position. If DIP switch A-7 is OFF, the left pedal causes left and right work clamps to be raised

and lowered simultaneously. If ON, the left pedal causes the left work clamp to be raised and

lowered, and the right work clamp lowers when starting pedal to sew.

memo-1b

memo-1c

KE430C single foot pedal can be used. DIP switch A-7 is ON.

Bobbin thread counter is decremented at the start of sewing.

When using an air pressure drop detection switch. (This detection switch is available by special

order.)

Changes the split number automatically by using an external switch. (Use option connector P3 on

the operation panel.)

Program number is changed automatically by using outside switch. (Use optional connector P3 on

the operation panel.)

memo-1d

memo-1E

memo-1F

BAS-341F, 342F

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11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (20 - 2F)

Switch No.

When ON

During feed test operation, jump feeding 100 stitches at a time is possible using the STEP BACK

switch.

After the home position is detected and the machine moves to the sewing start position, the work

clamp rises automatically.

memo-20

memo-21

memo-22

memo-23

When extended option output No. 1 is ON, the sewing machine starts automatically.

Set to ON when the bobbin changer is being used. (This part is available by special order.)

Feed operation is enabled even if no cassette has been set when the eject device is being used

(memo-03 is ON).

memo-24

memo-25

memo-26

memo-27

memo-28

memo-29

memo-2A

memo-2b

memo-2c

memo-2d

memo-2E

When the input voltage is being checked, the display shows the temperature of the heat sink on the

main circuit board instead of the voltage.

memo-2F

Extended option output

Use the programmer (option).

Required controls for pressing motion and automatic stacking of sewing can be implemented according to various

functions of the machine.

For detail of the extended option output, please consult with your local Brother Sales Office.

BAS-341F, 342F

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11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (30 - 3F)

Turn the dial while pressing the STEP BACK switch to change the values.

Possible

setting range

Initial

Value

Switch No.

memo-30

memo-31

Units

X 10ms

Explanation

Time until feed mechanism starts moving after work clamp has

1 - 999

1 - 4

lifted.

Changes the feed speed.

1 (Fast)

4 (Slow)

Changes the possible sewing speed for a given stitch length.

1 (Fast) 7 (Slow)

1 (2,700/3 mm), 2 (2,600/3 mm), 3 (2,500/3 mm),

4 (2,300/3 mm), 5 (2,000/3 mm), 6 (1,800/3 mm), 7 (1,200/3 mm)

Settings 1 and 2 are outside the warranty specification at the

time of shipment from the factory.)

memo-32

memo-33

1 - 7

Changes the feed timing.

1 - 10

X 7.5

1 (Fast)

5 (standard)

10 (Slow)

Number of low-speed stitches sewn at 400 rpm at sewing start.

memo-34

memo-35

memo-36

1 - 5

10 - 60

1 - 3

stitch

The solenoid ON time when the presser foot is raised changes.

(Standard) 1

3 (Upper limit)

Automatically corrects the gear speed when reading 2DD disks.

0 : No automatic correction

1 : Read as BAS-311A data

memo-37

memo-38

0 - 3

2 : Read as BAS-326A data

3 : Read as BAS-341A, 342A data

ex. Read BAS-326A data by BAS-342F / Set memo-37=2

Changes the length of time from inserting the cassette until

automatic

1 - 20

X 100 ms

starting when the eject device is being used and automatic starting has

been set (memo-03 and DIP switch A-7 are also both ON).

Changes the reference point for enlargement and reduction using

the operation panel.

0 : Sensor home position

1 : Center of work clamp

2 : Upper-left corner of work clamp

3 : Lower-left corner of work clamp

4 : Upper-right corner of work clamp

memo-39

0 - 11

5 : Lower-right corner of work clamp

6 : Sewing start point, 7 : Sewing end point

8 : Upper-left corner of sewing pattern

9 : Lower-left corner of sewing pattern

10 : Upper-right corner of sewing pattern

11 : Lower-right corner of sewing pattern

Changes the speed limit for the given sewing pitch when the

maximum speed remains constant.

1 : Speed limit is increased for the given sewing pitch and the

sewing speed for that pitch is increased.

2 : Standard

3 : Speed limit is decreased for the given sewing pitch and the

sewing speed for that pitch is decreased.

Note

memo-3A

1 - 3

If sewing slippage occurs in places where a large sewing pitch is

used, reduce the setting to 3.

Furthermore, sewing slippage may occur in some cases if setting

1 is used.

memo-3b

memo-3c

memo-3d

memo-3E

memo-3F

BAS-341F, 342F

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12. ERROR CODES

Note

• If an operation problem occurs, a buzzer will sound and an error code will appear on the display screen; if a

programmer is connected, an error message will appear on the screen.

• Wait 10 seconds or more after turning the power off before turning it back on again.

Code

E.10

Cause

Remedy

Emergency stop switch was pressed.

Press the emergency stop switch once more to cancel.

The STEP BACK switch can then be used to resume

sewing.

Emergency stop switch was pressed during

sewing.

E.11

E.12

Emergency stop switch is being continually

pressed, or emergency switch connection error.

Turn off the power and check.

Turn off the power, and then turn the machine pulley to

Problem with machine motor stopping, or check if the machine has locked up. Check the

E.20

synchronizer connection error.

synchronizer connection. Check if connectors P14, P15

or P16 are disconnected.

Turn off the power and check the ground wire

connection.

E.21

E.22

E.30

Machine motor operation error.

Needle up stop position error.

Turn the pulley to align the index mark with the needle

up stop position. Check the V-belt tension.

Data is outside possible sewing area due to

enlargement or reduction ratio setting.

Check the enlargement or reduction ratio setting.

Data pitch exceeds 12.7 mm due to enlargement or

reduction ratio setting.

E.31

E.32

Check the enlargement or reduction ratio setting.

Input an end code, or change the program number.

No end code was input into sewing data.

Insert a floppy disk. If floppy disk is already inserted,

turn off the power and check the connections of cords

inside the operation panel.

Floppy disk is not inserted, disconnected cord

inside operation panel, or malfunction of drive.

E.40

E.41

E.43

Program number is invalid, no data, or floppy disk is

not formatted.

Check the floppy disk.

Floppy disk changed from readable disk when

setting the bobbin thread or when setting the Replace with a readable floppy.

memory switch.

E.4F

E.50

E.51

E.52

E.5F

E.60

E.61

E.70