Brother BAS-342F, BAS-341F, 342Fi User Manual

INSTRUCTION MANUAL

BAS-341F BAS-342F

Please read this manual be fore maki ng using the machine. Please keep this manual within easy reach for quick reference.

PROGRAMMABLE ELECTRONIC PATTERN SEWER

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 se wing m ac hines, it is nor m al to c arr y out work while pos itioned direc tl y in f ront of m oving par ts such as the needle and thread tak e-up lever, and consequently there is always a danger of injury that c an be caused b y 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.

SAFETY INSTRUCTIONS

Safety indications and their meanings

This instruction m anual and the indications and s ymbols that are used on the m achine itself are provided in ord er to ensure safe operation of this m achine and to preven t acciden ts and injur y to yours elf or other peopl e. The m eanings of these indications and symbols are given below .

Indications

Symbols

DANGER CAUTION

........................................This symbol ( ) indicates something that you should be careful of. The

........................................This symbol (

........................................This symbol ( ) indicates something that you must do. The picture

(For example, the symbol at left means “you must make the ground

The instructions which f ollow this term indicate s ituations where fail ure to fol low the instructions will almost certainly result in death or severe injury .

The instructions which f ollow this term indicate s ituations where fail ure to follo w the instructions could cause injury when using the machine or physical damage to equipment and surroundings.

picture inside the triang le indicat es the n ature of the caution tha t m ust be taken. (For example, the symbol at left means “beware of injury”.)

) indicates something that you must not do.

inside the circle indicates the nature of the thing that must be done.

connection”.)

BAS-341F, 342F

2 Notes on safety

peop

Wait at least 5 minutes after turning off the power switch and dis connec ting the power cord from the wall ou tlet before opening the face plate of the contr ol box. Touching areas where high voltages are present can result in severe injury.

DANGER

CAUTION

Environmental requirements

Use the sewing machine in an area which is fr ee from sources of stron high-frequency welders. Sources of stron 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

ower supply capacity should be greater than the requirements for the sewing machine’s electrical consumption. Insufficient problems with correct operation.

The

reater than the requirements for the sewin machine's total air consumption. Insufficient cause problems with correct operation.

ower supply capacity may cause

neumatic delivery capability should be

neumatic delivery capability ma

electrical noise such as

electrical noise may cause

Installation

Machine installation sh ould only be carried out b a qualified technician.

Contact your Brother dealer or a qualified electrician for any electrical work that may need to be done.

The sewing machine weighs more than 200 kg. The installation should be carried out b more people.

Do not connect the com

lete, otherwise the machine m ay operate if the foot switch is depressed by mistake, which could result in injury.

Hold the machine hea d with bot h ha nds b more original position.

Furthermore, after tiltin do not from above, as this could cause the machine head to to or damage to the machine.

Be sure to connect the connection is not secure, you run a high risk of receiving a serious electric shock, and problem s with correct operation may also occur.

le when tilting it back or returning it to its

ush the face plate side or the pulley side

le over, which may result in personal injur

ower cord until installa tion is

back the machine head,

round. If the ground

two or

The ambient temperature should be within the range of 5 to 35

eratures which are lower or higher than this

Tem may cause problems with correct operation.

The relative humidit 45% to 85% durin should occur in any devices. Excessivel formation may cause problems with correct operation.

Avoid exposure to direct sunlight during use. Ex

osure to direct sunlight may cause problems

with correct operation. In the event of an electrical storm, turn off the

ower and disconnect the power cord from the wall outlet. Li

htning may cause problems with correct

operation.

Install the belt cover and the fram e side cover to the machine head and motor.

If usin casters should be secured in such a wa they cannot move.

Be sure to wear 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 under any circumstances, as they can cause vomiting and diarrhoea.

Keep the oil out of the reach of children.

dry or humid environm ents and dew

a work table which has casters, the

during use.

should be within the range of

use, and no dew formation

rotective goggles and gloves

so that

rease

BAS-341F, 342F

CAUTION

y op

Sewing

This sewing machine should only be used by operators who have received the necessary training in safe use beforehand.

The sewin applications other than sewing. Be sure to wear machine. If goggles are not worn, there is the d anger that if a needle breaks, enter your eyes and injury may result.

Set the needle to the needle u before turning off the power. If this is not done, the wi which might cause the needle to break.

Turn off the power switch at the following times, otherwise the machine ma switch is depressed by mistake, which could result in injury.

• When replacing bobbin

• When not usin the machine unattended

machine should not be us ed for an

rotective goggles when using the

arts of the broken needle ma

stop position

er may strike the needle,

erate if the foot

the machine and when leavin

Cleaning

Turn off the power switch before carrying out cleaning, otherwise the machine may operate if the foot switch is de could result in injury .

ressed by mistake, which

If using a work table which has casters, the casters should be secured in such a way so that they cannot move.

Attach all safet machine. If the machine is used without these devices attached, injury may result.

Do not touch an objects against the machine while se wing, as this ma

result in personal injury or damage to the

machine. If an error occurs in machine o

noises or smells are noticed, immediatel

ower switch. Then contact your nearest Brother

dealer or a qualified technician. If the machine develo

nearest Brother dealer or a qualified technician.

Be sure to wear protective goggles and gloves when handlin that the skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under an vomiting and diarrhoea. Keep the oil out of the reach of children.

do not get into your eyes or onto your

devices before using the sewin

of the moving parts or press an

eration, or if abnormal

turn off the

s a problem, contact your

the lubricating oil and grease, so

circumstances, as they can cause

Maintenance and inspection

Maintenance and inspection of the sewing machine should only be carrie d out by a qualified technician.

Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspect ion of the electrical system.

Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the m achine may operate if the foot switch is depress ed by mistake, which coul d result in injury.

• When carrying out inspection, adjustment and maintenance

• W hen replacing consumable par ts such as the rotary hook

Disconnect the air hoses from the air supply and wait for the needle on the pres sure gaug e to dr op to “0” before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment.

If the power switch and air need to be left on when carrying out some adjustment, be extremely careful to observe all safety precautions.

Hold the machine head with b oth h ands by two or more people when tilting it back or returning it to its original position.

Furthermore, after tiltin g back the machine head, do not push the face plate s ide or the pulle y side from above, as this could cause the machine head to topple over, which may result in personal injury or damage to the machine.

Use only the proper replac em ent par ts as specified by Brother.

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.

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

iii

BAS-341F, 342F

3 Warning labels

The following warning labels appear on the sewing machine. Please follow the instructions on the lab els at all times when using the m achine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer.

Be sure to connect the ground. If the ground connection is not secure, you run a high risk o receiving a serious electric shock, and problems with correct operation may also occur.

Thread take-up cover

Safety devi ces

Eye guard Finger guard Thread take-up cover Belt cover , etc.

Eye guard

Finger guard

Belt cover

1971S

BAS-341F, 342F

1. NAME OF MAJOR PARTS

2. SPECIFICATIONS

3. PREPARATION

3-1. Before se ttin g up 3-2. Positioning 3-3. Tilting the sewing machine head 3-4. Connecting the ground wire 3-5. V-belt tension 3-6. Installing the foot switch 3-7. Installing the spool stand 3-8. Installing the programmer (option) 3-9. Adjusting the air pressure

..............................................................................................................................................................3

.........................................................................................................................................................................4

.....................................................................................................................................................................5

4. LUBRICATION

4-1. Lubrication points

.............................................................................................................................................................8

5. CORRECT USE

...........................................................................................................................................2

..................................................................................................................................................3

..................................................................................................................................4

...........................................................................................................................................5

...............................................................................................................................................5

................................................................................................................................................6

...............................................................................................................................................7

......................................................................................................................................................8

...................................................................................................................................................9

.................................................................................................................... 1

...............................................................................................................................6

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

5-2. Installing the needle and urnnin g the sew ing mac hine..................................................................................

5-3. Threading the upper thre ad ........................................................................................................................

5-4. Windin g th e l ow e r th rea d ............................................................................................................................

5-5. Replacing the bobbin case and th readi ng the thread .................................................................................

5-6. Sewing conditions and thread tensi on ........................................................................................................

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

9 9

11 12 12

6. USING THE OPERATION PANEL

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

6-1 1. Shifting a stitch pattern ..............................................................................................................................................26

BAS-341F, 342F

................................................................................................15

7. SEWING

7-1. Before starting sewing....

7-2. Sewing operation

....................................................................................................................................................................27

............................................................................................................................................................27

................................................................................................................................................27

8. MAINTENANCE AND INSPECTION

8-1. Cleaning the shuttle hook 8-2. Lubrication 8-3. Draining the oil 8-4. Cleaning the control box air inlet port 8-5. Cleaning the eye guard 8-6. Checking the needle

........................................................................................................................................................................29

................................................................................................................................................................30

9. STANDARD ADJUSTMENTS

9-1. Adjusting the needle bar height 9-2. Adjusting the needle bar lift amount 9-3. Adjusting the needle clearance 9-4. Adjusting the driver needle guard 9-5. Adjusting the shuttle race thread guide 9-6. Adjusting the movable knife 9-7. Adjusting the presser foot 9-8. Chan gin g th e p resse r foo t l i ft 9-9. Adjusting the wiper 9-10. Adjusting the needle up stop position 9-1 1. Checking th e input senso r and DIP switch inpu t 9-12. Checking the input voltage 9-13. Clearing all memory settings

..........................................................................................................................................................38

.............................................................................................................................................29

.........................................................................................................................30

.................................................................................................................................................31

......................................................................................................................................................31

..........................................................................................................32

....................................................................................................................................32

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..............................................................................................................................................36

.......................................................................................................................................37

......................................................................................................................38

...................................................................................................39

.........................................................................................................................................40

.....................................................................................................................................40

........................................................................................29

10. DIP SWITCH

10-1. Panel DIP switch functions 10-2. DIP switches inside the control box

.....................................................................................................................................................41

........................................................................................................................................41

.........................................................................................................................43

1 1. CHA NGING SPECIAL FUNCTIONS A ND

USING THE MEMORY SWITCHES

12. ERROR CODES

...........................................................................................................................................50

........................................................................................45

13. GAUGE PARTS LIST ACCORDING TO SUBCLASSES

14. NOTES ON THE PROCESSING AND PRODUCTION OF PLATE BLANKS

15. TROUBLESHOOTING

16. OPTIONS

..............................................................................................................................................................58

.................................................................................................................................53

..........................................................................................................................54

...............................52

BAS-341F, 342F

1. NAME OF EACH PARTS

BAS-341F

■

Emergency stop switch

Thread wiper switch

Cotton stand

Operation panel

Programmer

BAS-342F

■

Solenoid valve

Integrater

Presser lifter pedal

Power switch

Control box

Starting pedal

1917S

Presser foot

Work cl a mp

Feed plate

1918S

BAS-341F, 342F

2. SPECIFICATIONS

Stitch formation Single needle lock stitch

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

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

Maximum stitch number 20,000 (one pattern)

Stitch length 0.1 - 12.7 mm

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

Feed mechanism Intermittent feed, pulse motor drive

Shuttle hook Double hook (Standard hook is sold separately)

Needle DP X 5, DP X 17, MR

Data storage method 3.5 floppy disk 2HD/1.44MB, 2DD

T e st function Operation test function provided for use with low speed drive

2. SPECIFICATIONS

Safety devi ce s

Work clamp height Max.30 mm

Work clamp Unit work clamp (special order-separate work clamp)

Work clamp lift stroke 18 mm

Intermittent stroke 0 or 3 (Factory default) - 8 mm

Weights

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

Motor Three-phase 400 W induction motor Air pressure 0.50 MPa 1.8 l/ min Power table Use sitting or standing

Machine dimensions

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

stop function and safety circuits

Machine head: 80kg,

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

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)

BAS-341F, 342F

3. PREPARATION

Machine installation s hould onl y 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 head weighs more than 200 kg. The installat ion should be carried ou t by two or more people.

Do not connect the power cord until ins tallation is complete, otherwise the m achine may operate if the foot switch is depressed by mistake, which could result in injury .

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 he ad with both hands b y t wo or more peple when tilting it back or returning it t o its original position. Furth er more, after tilting back the machine head, do not push the fac e 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.

CAUTION

Install the belt cover an d the frame side cover to the machine head and motor.

If using a work table which has casters, the casters should be secured in such a way so that they cannot move.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oi l or ea t the greas e under any circumstances, as they can cause vomiting and diarrhoea. keep the oil out of the reach of children.

3-1. Before setting up

1. Ins tall the Y driving shaft guard (1) to the rear of the arm with the bolt (2) and the spring washer (3).

2. Install the g uard ( 4) to the table rear c over (5) with the bolt (6), spring washer (7), flat washer (8) and nut (9).

1919S

BAS-341F, 342F

3-2. Positioning

3. PREPARATION

Decide the position for the sewin g machine. Loos en 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

Gas spring

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

2. Remove bolt (3).

remove table cover (rear) (2).

The bolts are used to fix the machine in shipping. Generally they are needless after removing them keep them in another place.

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

1922S

BAS-341F, 342F

to its original position.

3. PREPARATION

3-4. Connecting the ground wire

CAUTION

Be sure to connect the ground. If the gr ound connection is no t secure, you run the risk of receiving a serious electric shock.

Connection method for 3-phase power supply.

Red White

Black Yellow/Greeen

3-5. V-belt tension

3-phase power supply

Yellow/Green

Connect to ground

0064Q

These should approximately 10 - 12 mm of slack when Vbelt 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

3-7. Installing the spool stand

(2)

(1)

Install the spool stand (1) to the table.

(1)

0073Q

3-8. Installing the programmer (option)

3. PREPARATION

[Vertical]

1181S

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).

[Flat]

(1)

(2)

(4)

1182S 1183S

(3)

BAS-341F, 342F

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 an d 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

4. LUBRICATION

CAUTION

Turn off the power switch before st arting lubricating, otherwis e the machine m ay operate if the foot switc h 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 oi l or eat the greas e under any circ umstances, as they can cause vom iting 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 belo w this level, there is the danger that the machine may sei ze 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

4. LUBRICATION

1. Fill the arm-side oil tank with oil. (Fill the oil tank with sewing machine oil.)

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

1926S

1928S

1927S

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

1929S

4. If using the liquid cool ing tank (1), fill it with sil icon oil (100 mm

/S).

BAS-341F, 342F

5. CORRECT USE

5-1. Selecting the needle and thread

Needle Thread Main application

DP X 5 #9 #100 - #60 Knitted wear

DP X 5 #16 #80 - #50 General clothing

DP X 17NY #19 #50 - #20 Denim

DP X 17 #21 #50 - #20 Denim DP X 17 #25 #50 - #20 Leather•seat belts

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

Turn off the power switch before installin g the nee dle, otherwis e the m achine m a y operate of the f oot s witch is depressed by mistake and serious injury could result.

Different needles and threads are used for different sewing applications. Refer to the table at left for details on which needle.

CAUTION

Installing the needle

■

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).

1930S

To turn the pulley by hand

■

Turning

Press

Simply press in on the pulley (1) to tur n it by hand. To turn the pulley, press lever (2) down.

• After turning the pulley b y han d, be sure t o pr ess the lever down to return the pulley to the normal operating position.

Down

1931S

BAS-341F, 342F

5-3. Threading the upper thread

CAUTION

Turn off the power switch before threadi ng th e thr ea d, ot herwise the machine m ay operate of the foot switch is depressed by mistake and serious injury could result.

5. CORRECT USE

[When using cotton thread and spun yarn]

1932S

[With synthetic thread] [Threading in the upper thread breakage detector]

Real the thread from above once or twice as the above figure.

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.

1934S

BAS-341F, 342F

5. CORRECT USE

5-4. Winding the lower thread

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)

CAUTION

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

2. Thread the thread as shown in the illustrat ion 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. (The POWER indicator on the operation panel will illuminate.)

1198S

1199S

0106Q

(2)

(1)

(4)

(2)

(1)

1935S

4. Check that the needle is not touching the presser foot, and then while pressing the ST EP BACK switch (2), depress the foot switch (3) to start the m achine. Ke ep 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. If you release the foot s witch before winding is com pleted, depress it once m ore while pr essing a nd holding the STEP BACK switch (2).

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

(5)

original position after a set amount of thread (80 - 90% of the bobbin capacity) has been wound on.

6. Release the foot switch (3).

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.

8. To wind more thread onto the bobbin, l oosen the set

0107Q

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

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

If the thread winds onto th e bobbin unevenly, loosen the nut (1) and turn the bob bin winder thread tensi on stud (2) to adjust.

Note

If the thread winds on as shown in A, turn the b obbin winder thread tension stud (2) clockwise; if it winds on as shown in B, turn the bobbin winder thread tension stud (2) counterclockwise.

0108Q

BAS-341F, 342F

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

CAUTION

If the power switch needs to be lef t on whe n car rying out replacing the bobbin, b e extr emely 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)

(4)

5. CORRECT USE

30 mm

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.

0110Q

1202S

5-6. Sewing conditions and thread tension

5-6-1. Sewing conditions

Specifications For heavy materials

Upper thread # 20 or equivalent # 50 or equivalent

Lower thread # 20 or equivalent # 60 or equivalent Upper thread tension (N) 1.5 - 2.0 0.5 - 1.0 Lower thread tension (N) 0.2 - 0.4 0.2 - 0.4

Thread take-up spring height 8 - 10 mm 6 - 8 mm

Thread take-up spring tension(N) 1.5 - 2.0 0.4 - 0.6

For medium materials

Needle DP X 17 # 21 DP X 5 # 16

Normal sewing speed 2000 rpm 2000 rpm

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

BAS-341F, 342F

5. CORRECT USE

(5)

5-6-2. Lower thread tension 5-6-3. Upper thread tension

Weaker

Stronger

(1)

0112S

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.

Weaker

Turn the tension nut (2) (main tension) to adjust the tension as appropriate for the material being sewn. Furthermore, turn the thread n ut (3) ( sub-tensio n) to adjust the remaining length of upper thread to 35 - 40 mm.

Stronger

Weaker

Stronger

1937S

Note

If the lower thread tens ion is too weak, it m ay 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

1938S

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

Stronger

Weaker

1939S

Adjust the thread take-up spring tension by turning the tension stud

with a screwdriver.

5-6-6. Pretension tension

5. CORRECT USE

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.)

BAS-341F, 342F

6. USING THE OPERATION PANEL

(7)

(8)

(9)

(10)

(11)

6. USING THE OPERATION PANEL

6-1. Explanation of panel

(5)

(2)

(3)

(4)

(6)

(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 s witch.................................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.

(1)

1207S

X-SCALE indicator (7) Y-SCALE indicator (8) SPEED indicator (9)

B.T . COUN TER indicator (10) SPLIT NO. indicator (1 1)

(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).

BAS-341F,342F

(10)

(1 1)

(5)

6. USING THE OPERATION PANEL

(13)

(14)

(12)

(16)(6)

(15)

(17)

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 displa y screen (5) can be changed by turnin g this dia l

while pressing the STEP BACK switch (17).

(13) Bobbin Thread SET switch.................Used to store the number of work pieces displa yed in the bobbi n threa d count er

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 or der to c onf ir m a programmed stitc h

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.

BAS-341F, 342F

6. USING THE OPERATION PANEL

6-2. Using the floppy disk

Data type

300E type

(300F type)

T a jima embroidery

data

Old 300A type

Old 300 data

• The above four types of data can all be read, but when writing t o disk, all data is autom atically 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 em broidered after it has been converted b y the programmer to BAS-300F and BA S300E 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.

No. of stitches

programmed

20,000 stitches per pattern 100 pattern Up to a maxi-mum of 360,000 stitches

50, 00 0 st it ch es per pa tte rn 0.1 mm/pulse

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

Data resolution Disk Format

0.05 mm/pulse Yes

0.1 mm/pulse Yes

0.2 mm/pulse

2HD 1.44 MB

2DD

Automatically

formatted

Write

enabled

Restricted function A series (2DD) F, E series (2HD) Resolution 0.1 mm/pulse 0.05 mm/pulse Low-speed conversion

Split function during embroidering

Needl e do wn s top f or spli t Not available Available Expansion option output Not available Available

2 types (400 and 1,200 revolutions)

Not available Available

4 types (400, 600, 800and 1,200 revolutions)

Applicable

command

[668] L [669] L [220] L [230] L [221] L [231] L

BAS-341F,342F

Setting the floppy disk

(2)

(5)

(4)

6. USING THE OPERATION PANEL

Unlocked writing possible

Window open(3)

(1)

(6)

locked writing possible

1209S

1210S

1211S

1. Turn on the power switch (1). The POWER indicator (2) will illuminate and the machine m odel num ber will appear o n the display screen.

2. Hold the disk (3) with the la bel up and th e shutter to the f ront, and insert the disk into the drive (4). It will click into place.

3. T o 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 m ay 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, telephones, 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 ver y 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 mas ter floppy disk and write it in a new flopp y disk. Do not use any dam aged flopp y 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 clea ning d isk is used and the lifetim e of the cleaning dis k will become shor t. Next tim e you clean it, select a different number.

3. After the cleaning is com pleted, the “E.4F” error appears . The error appears because the cle aning disk has no data. This is normal.

4. Cancel the error and eject the cleaning disk.

BAS-341F, 342F

6. USING THE OPERATION PANEL

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

Programmed stitch patter ns stored on flopp y disk can be read into memory, and newl y programmed patterns can be written to disk for permanent storage and later recall.

1212S

(7)

(1)

(5)

Insert the floppy disk (1 ) containing or whic h is to contain the programmed stitch pattern.

To READ a pattern to memory

Press the program select switch (3) on the operation panel. The program number will then appear in the PROGRAM NO. displa y (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 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 flas h in the PROGRAM NO. display ( 2) instead of the "P" to indicate that the reading of the data is complete.

(2)

(3)

(4)

(7)

(8)

1213S

1215S1214S

To WRITE a patte rn to disk

Press the program select switch (3) on the operation panel to select the desired program number. After programming the pattern using the stitch programmer, press the R/W switch (4) The disk drive ind icator (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 ind ic ate t hat th e writ ing of the data is complete.

If an error message is displayed

If an error message code is displayed in the displa y (7), and alarm will sound. Press the emergenc y 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.

Clearing the error

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

BAS-341F,342F

6. USING THE OPERATION PANEL

(15)

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.

1217S

1215S

(16)

(17)

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

Note

After the feed mechanism has returned to the home position, it will then m ove the sewing start position and the program number will stop flashing. This only occurs the first time that a program is selected.

4. Press the starting pedal ( 1). (The needle will remain stationary as the work clamp advances through the pattern at low speed one stitc h 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 memor y 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.

BAS-341F, 342F

6. USING THE OPERATION PANEL

6-5. Using the emergency stop switch

Press the emergenc y stop switch to im mediately stop the sewing machine during actual sewing or when in the tes t mode.

1941S

Clearing the error

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 pan el dis play flas hes. 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.

1215S

1219S

1200S

(15)

(17)

(18)

(17)

1215S

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.

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. (The sewing machine will move stitch by stitch in the reverse direction while this switch is pressed.) If the sewing machine m oves 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 pos ition, depress the starting pedal to start sewing.

BAS-341F,342F

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 t he SPEED indicator (9) illuminates.

2. While pressing the STEP BAC K 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)

1220S

1215S

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 BAC K switch (17), turn the dial (12) until the desired ratio flashes on the display.

• The scale setting is displayed as a percentage.

1221S

(7) (8)

(6)

(17)

(12)

1215S

3. The program number will flash, and after the home position is detected the flashing will stop.

BAS-341F, 342F

6. USING THE OPERATION PANEL

(10)

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)

(6)

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

• The bobbin thread counter can be s et to an y number fr om <001> to <999>. If the counter is set to < 000>, s ewing 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. Th is 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 s e wn, the counter (5) will red <000>, and an a larm will sound. (The sewing machine will not start even if the start switch is pressed.)

5. Press the bobbin thread chan ge switch (14) and replace the bobbin. T he alarm will stop, and the number of work pieces set in step 3 will be displayed again in the counter (5).

(12)

(17)

1222S

BAS-341F,342F

6. USING THE OPERATION PANEL

(6)

(10)

(11)

6-9. Using production counter

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

(5)

(2)

(13)

(14)

(12)

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 s witch (15) or the MENU switch (6). T he TEST indicator (16) will switch off and the contents of each display screen will return to the normal display .

(16)

(15)

(17)

1223S

BAS-341F, 342F

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)

1224S

1225S

(12)

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) unt il t he SPL IT NO. indicator (11) is illuminated. "1" will then ap pear i n the dis p la y scr een (5). Then, while pres sing the STEP BACK s witch (17), turn the dial (12) to change the contents appeari ng on the display screen (5) in order.

(Example) If three patterns have been program med for split s ewing, the number on the display scr een 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”.

BAS-341F,342F

6. USING THE OPERATION PANEL

6-1 1. 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)

(2)

(7) (8)

(10)

(4)

(16)

1226S

(6)

(12)

(15)

1943S

1. After the program data has been r ead, depress the start switch to move the feed m echanism to the sewing start

position. If you carry out the followin g procedure while the program number display (2) is flas hing (if the s tart switch has not been depressed) (The feed position can be s et to any position, but it will not be possibl e to move the stitch pattern .

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 < > will

appear in the counter (5).

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 turn ed counterclock wise while the X-SCAL E indicator is i lluminated, the feed m echanism 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 turn ed counterclock wise while the Y-SCAL E indicator is i lluminated, the feed m echanism will move up.

• If the setting dial is turned clockwise while the Y-SCALE ind icator is illum inated, 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.

BAS-341F, 342F

7. SEWING

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....

CAUTION

• 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).

7-2. Sewing operation

(6)

(3)

(4)

(5)

1944S

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 th e indicator will go out, then the PROGRAM NO. dis play (6) will blink the program number.

1229S

1213S

BAS-341F,342F

7. SEWING

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.

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 cla mp.

7. Press the starting pedal (1).

Note

The work clamp will return t o 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

BAS-341F, 342F

8. MAINTENANCE AND INSPECTION

CAUTION

Turn off the power switch before starting any cleani ng work, otherwise the machine ma y 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 oi l or eat the greas e under any circ umstances, as they can cause vom iting and diarrhoea. Keep the oil out of the reach of children.

8-1. Cleaning the shuttle hook

(5)

1936S

1. Pull the shuttle hook cover (1) forward to open, and t hen remove the bobbin case.

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).

1945S

3. Clean all the dust and thread ends from around the driver (5), the to p of the shuttle hook thread guide and the shuttle race.

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.

1946S

1926S

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

BAS-341F,342F

1927S

8-3. Draining the oil

8. MAINTENANCE AND INSPECTION

3. If using the liquid cooling tank ( 1), fill it with silicon oil (100 mm²/S).

1929S

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 c lean the f ilter 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 an d you will not be ab le to operate the sewing machine.

1948S

BAS-341F,342F

8. MAINTENANCE AND INSPECTION

8-5. Cleaning the eye guard

8-6. Checking the needle

Wipe the eye guard clean with a soft cloth.

Note

Do not use solvents such as kerosene thinner to clean the eye guard.

1235S

Always check that the tip of the needle is not broken before starting sewing.

1236S

BAS-341F,342F

9. STANDARD ADJUSTMENTS

CAUTION

9. STANDARD ADJUSTMENTS

Maintenance and inspection of the sewing machine should only be carried out by a qualified technician.

Ask your Brother dealer or a qualified electrician to carry out any maintenance and inspection of the electrical system.

Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the 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

9-1. Adjusting the needle bar height

(1)

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.

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.

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).

1949S

9-2. Adjusting the needle bar lift amount

(1)

1239S

1950S

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).

BAS-341F, 342F

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)

0135Q

1242S

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.

1952S

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

9-6. Adjusting the movable knife

9. STANDARD ADJUSTMENTS

1954S

1955S

Loosen the nut (2) and move thread trim mer 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 f eed plat e (2). Then te ar off the auxil iar y pla te 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

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.)

1247S

Fig. 1

Cutti

edge

(9)

Movable knife

0149S

Fixed knife

Cutti

ng edge

0148Q

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).

Cutti

ng edge

0150Q

1959S

BAS-341F, 342F

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.

1962S

Turning

Down

Press

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

■

To turn the pulley by hand

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

9. STANDARD ADJUSTMENTS

9-8. Changing the presser foot lift

(9)

3 - 5 mm

(8)

(6)

0.5 - 1 mm

1254S

1252S

(7)

1963S

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.

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

9-9. Adjusting the wiper

9. STANDARD ADJUSTMENTS

(4)

(1)

approx. 112 mm

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.

(3)

15 mm

(2)

approx. 2 mm

1258S1257S

(2)

(6)

(5)

1259S

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

1965S

BAS-341F, 342F

• 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.

9. STANDARD ADJUSTMENTS

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

(5)

(7)

(4)

(1)

(3)

1273S

(6)

(2)

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

1282S

1283S

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 : X home position sensor

• When Y-SCALE indicator is illuminated : Y home position sensor

• When SPEED indicator is illuminated : Needle up signal (synchronizer)

• When B.T. COUNTER indicator is illuminated : 24-section signal (synchronizer)

• When SPLIT ON. indicator is illuminated : 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

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.

9. STANDARD ADJUSTMENTS

(1)

1275S

(2)

1276S

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

(3)

(4)

1277S

1278S

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

200-V specifications 090 - 110

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

220-V specifications 100 - 120

230-V specifications 105 - 125

100-V, 380-V, 400-V 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

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

SW No. When ON

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

- - - Pneumatic Work clamp and presser foot rise and lower simultaneously.

ON - - Pneumatic

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

ON ON - Pneumatic

A-3

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

A-4

Type Function of work clamp pedal

Only work clamp rises and lowers; presser foot lowers when starting switch is pressed.

- - ON Pneumatic Work clamp and presser foot rise and lower simultaneously.

ON - ON Pneumatic

- ON ON Pneumatic

ON ON ON Pneumatic

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

DIP switch A

SW No. When ON

10. DIP SWITCH

A-5

A-6

A-7

A-8

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)

Single-pedal operation using the starting switch; when the starting switch is pressed, the work clamp drops, and when it is released, sewing starts.

Thread breakage detector device is activated

DIP switch B

SW No. When ON

B-1

B-2

B-3

B-4

Single split mode activated

Feed movement when not using work clamp, activated

Thread is not trimmed after an emergency stop.

Needle cooler output is produced.

B-5

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-6 Fiber-type thread breakage detector device is ON, and DIP switch A - 8 is ON (available as an option)

B-7

B-8

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.

Feeding speed is switched to high speed.

BAS-341F, 342F

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

DIP switch C

■

C-1 C-2 C-3

---

ON - - BAS-311E

- ON - BAS-326E

ON ON - BAS-343E

- - ON BAS-341F

ON - ON BAS-342F

-ONON

ON ON ON BAS-311EL

SW No. When ON

Model setting

1966S

C-4

C-5

C-6

C-7

C-8

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.

When using an air-driven intermittent work clamp

BAS-341F, 342F

DIP switch D

SW No. When ON

10. DIP SWITCH

D-1

D-2

D-3

D-4

D-5

D-6

D-7

D-8

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

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

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

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*

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

11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

11. CHANGING SPECIAL FUNCTIONS AND USING THE MEMORY S WITCHES

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)

(3)

(4)

(7)

(6)

(1)

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) . T he buzzer will sound twice, a nd the cur rent m em ory switch settin gs will be written to the flopp y disk.

(2)

1281S

BAS-341F, 342F

11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (00 - 0F)

Switch No. When ON

memo-00 memo-01

When moving to the home position, the feed plate moves in the order X Y and the start position moves in the order Y X. When moving to the home position, the feed plate moves in the order Y X and the start position moves in the order X Y. The forward position becomes the home position, and movement is in the order Y X and

memo-02

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

memo-03 Eject device operates. (Eject device is available by special order.) memo-04 Needle stops in up position during emergency stop. (Needle normally stops in down position.) memo-05 When sewing is finished, the feed plate moves via the machine home position to the start position. memo-06 After the final stitch, the work clamp rises and then the feed plate returns to the start position. memo-07 Intermittent work clamp is not used (does not rise).

memo-08

When using an inner clam ping 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 Changes the wiper to air drive. (Air wiper is availabe as an option.) memo-0A Jog feeding becomes faster during programming. memo-0b ON when a two-stage tensioner is used. (Two-stage tensioner is available as an option.)

memo-0c Single-pedal operation by means of two-stage work clamp switches. DIP switch A-2 is ON memo-0d Clearing the emergency stop switch action is carried out using the STEP BACK switch. memo-0E Test feeding is carried out at the same speed as normal sewing. (For checking feed operation)

memo-0F

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.

BAS-341F, 342F

11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (10 - 1F)

Switch No. When ON

memo-10 Milling device can be used (available as an option)

memo-11 Bobbin thread counter and production counter are adjusted when thread is trimmed.

Work clamp is lowered by pressing work c lamp first stage switch twice, without us ing work clamp

memo-12

second stage switch. W hen 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. When work clamp is lowered, th e starting switch causes lock ing; if the switch is release d before

memo-13

locking, the work clamp rises 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

memo-14 Needle up error detected. memo-15

ON when machine is eq uipped with signal tower indicator. (This indicator is available by special order.)

memo-16 ON when machine is equipped with thread nipper. (Thread nipper is available by special order.) memo-17 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 left forward control is in the same

memo-18

order as starting, and for back ward control the work clamp r ises in the order left r ight using work clamp first stage switch (when DIP switch A-2 is ON). When OFF, the left and right orders are reversed.

memo-19

Produces two work c lam p s ignal outp uts ( right a nd l ef t work clamp) so that a t wo-pos it ion air valve can be used. (Two-position air valve is available by special order.) When using a triple p edal (DIP switch B-7 is also ON), the right is used exc lusively to detect the

memo-1A

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

memo-1c Bobbin thread counter is decremented at the start of sewing.

memo-1d memo-1E memo-1F

When using an air pr essure drop detection switch. ( This detection switch is ava ilable by special order.) Changes the split number automaticall y b y using an external s witch. (Use opt ion connector P3 on the operation panel.) Program number is changed autom atic ally by us ing outside s witch. ( Use optio nal con nector P 3 on the operation panel.)

BAS-341F, 342F

11. CHANGING SPECIAL FUNCTION AND USING THE MEMORY SWITCHES

Memory switches (20 - 2F)

Switch No. When ON

memo-20 memo-21

During feed test operation, jump f eeding 100 stitches at a time is possible us ing the ST EP BACK switch. After the home position is detected and th e machine m oves to the sewing s tart position, the work clamp rises automatically .

memo-22 When extended option output No. 1 is ON, the sewing machine starts automatically. memo-23 Set to ON when the bobbin changer is being used. (This part is available by special order.)

memo-24

Feed operation is enabled even if no cassette has been s et when the eject device is being used (memo-03 is ON).

memo-25 memo-26 memo-27 memo-28 -. memo-29 memo-2A memo-2b -

memo-2c memo-2d memo-2E -

memo-2F

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.

Extended option output

Use the programmer (option). Required controls for pr essing motion and autom atic stacking of sewing can be im plemented accor ding to various functions of the machine. For detail of the extended option output, please consult with your local Brother Sales Office.

BAS-341F, 342F

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.

Switch No.

Possible

setting range

Units

Initial

Value

memo-30 1 - 999 X 10ms 10 memo-31 1 - 4 - 1

memo-32 1 - 7 - 3

memo-33 1 - 10 X 7.5 5 memo-34 1 - 5 stitch 1

memo-35 10 - 60 ms 40 memo-36 1 - 3 - 1

memo-37 0 - 3 - 0

memo-38 1 - 20 X 100 ms 1

memo-39 0 - 11 - 0

memo-3A 1 - 3 - 2

memo-3b - - 0

Explanation

Time until feed mechanism starts moving after work clamp has 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 .) Changes the feed timing. 1 (Fast) 5 (standard) 10 (Slow)

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

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 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 Chan

es the length of time from inserting the cassette until automatic startin

when the eject device i s being used and auto matic st arting 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 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 1 1 : Lower-righ t corner of sewin g 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

If sewing slippage occurs in places where a large sewing pitch is used, reduce the setting to 3. Furthermore, sew ing sli ppage may occur i n some cases i f set tin g 1 is used.

memo-3c - - 0 memo-3d - - 0

memo-3E - - 0

memo-3F - - 0

BAS-341F, 342F

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 Cause Remedy

E.10 Emergency stop switch was pressed. Press the emergency stop switch once more to cancel.

E.1 1

E.12

E.20

E.21 Machine motor operation error.

Emergency stop switch was pressed during sewing.

Emergency stop switch is being continually pressed, or emergency switch connection error.

Problem with machine motor stopping, or synchronizer connection error.

Press the emergenc y stop sw itch onc e more to cancel. The STEP BACK switch can t hen be used to resume sewing.

Turn off the power and check. Turn off the power, and then turn the machine pull e y t o

check if the machine has locked up. Check the synchronizer connection. Check if connectors P14, P15 or P16 are disconnected.

Turn off the power and check the ground wire connection.

E.22 Needle up stop position error.

E.30

E.31

E.32 No end code was input into sewing data. Input an end code, or change the program number.

E.40

E.41

E.43

E.4F Other error when reading floppy disk. Replace the floppy disk and repeat the operation.

E.50 Floppy disk is write-protected. Remove the write-protection. E.51 Insufficient space on floppy disk. Use a different floppy disk. E.52 Floppy disk cannot be formatted Replace the floppy disk and repeat the operation.

Data is outside possible sewing area due to enlargement or reduction ratio setting.

Data pitch exceeds 12.7 mm due to enlargement or reduction ratio setting.

Floppy disk is not inserted, disconnected cord inside operation panel, or malfunction of drive.

Program number is invalid, no data, or floppy disk is not formatted.

Floppy disk changed from readable disk when setting the bobbin thread or when setting the memory swit ch.

Turn the pulley to align the index mark with the n eedle up stop position. Check the V-belt tension.

Check the enlargement or reduction ratio setting.

Insert a floppy disk. If floppy disk is already inserted, turn off the power and check the connections of c ords inside the operation panel.

Check the floppy disk.

Replace with a readable floppy.

E.5F Floppy disk write error. Repeat the operation.

E.60 Data backup is not possible. E.61 Data cannot be backed up E.70 Overlapping option output numbers. Change the option output number.

E.80

E.81

Thread breakage error detected by rotating-type thread breakage detector device.

Upper thread breakage error detected by optical fiber-type sensor.

BAS-341F, 342F

Turn off the power, wait a while and then turn it back on. If the error appears continually, contact a qualified service techni cia n.

Thread the upper thread. Sewing can then resume.

12. ERROR CODES

Error codes [E.9 * ] - [E.F * ]

■

DANGER

Wait at least 5 minutes after turning off the po wer switch and disconnecting th e po wer c ord f r om the wall o utlet before opening the face plate of the contro l box. Touching areas where high voltages are present can result in severe injury.

Code Cause Remedy

E.90

E.91

Abnormal drop in po wer supply voltage, or power was turned on again immediately after it was turned off.

Abnormal rise in power supply voltage. Turn off the power and check the input voltage.

Turn off the power and check the input voltage. After turning off the power, wait 3 seconds or more before turning it on again.

E.A0

E.A1

E.c0

E.c1

E.c2 E.c3 E.c4

E.c5

E.d0 E.E0 E.E1 E.E2

Starting switch was pressed without any valid sewing data loaded.

Home position point was not detected within a certain time during home position detection.

Motor PROM is not correctly inserted. Turn off the power and check. The box cooling fan (at the left when looking from

the front) is not operating. Heat sink of control circuit board is abnormally hot. T u rn o ff t he po we r an d c le a n t he ai r in ta ke p or t o f th e b o x.

Abnormal current detected in X pulse motor. Tu r n of f th e power and contact a qualified service technician. Abnormal current detected in X pulse motor. Tu r n of f th e power and contact a qualified service technician.

The box cooling fan (at t he right when l ook ing f rom the front) is not operating.

Air pressure drop error. Turn off the power and check. Main PROM is not correctly inserted. Turn off the power and check. Communication erro r detected by control circuit bo ard. Turn off the power, wait a while and then turn it back on. Communication erro r detected by panel circuit bo ard. Turn off the power, wait a while and then turn it back on.

Re-read the sewing data.

Turn off the power and check the X-Y feed and the home position sensor connection.

Turn off the power and check whether any thread scraps have built up.

E.E3

E.F0

E.F1

E.F2

REFERENCE segment LED alphabet

Bad connection in cable between panel and box. Turn off the power and check. Power relay is not operating (malfunc tion of power

supply circuit board). Bad connection in cable between power supply

circuit board and main circuit board.

Abnormal current detected in power supply circuit board. Turn off the power and contact a qualified service te chnician.

Panel display

Text disp lay

Turn off the power and contact a qualified service technician.

Turn off the power and check.

BAS-341F, 342F

13. GAUGE PARTS LIST ACCORDING TO SUBCLASSES

13.

GAUGE P ARTS LIST ACCORDING TO SUBCLASSES

The following parts are available for the BAS-341F.342F for adding further flexibility to the range of applications.

Model BAS-341F,342F

Subclass -21 -22

Use

Part name

Needle hole plate

0182Q

Shuttle hook assembl W / BOX

0188

Heavy materials Medium materials

Needle hole plate E

(Φ2.6)

S10212-101

Shuttle hook assy

W /BOX S15663

(LB)

SA1894-001

Needle hole plate F

(Φ2.2)

S10213-001

Shuttle hook assy

W /BOX S15662

(LA)

SA1892-001

Large shuttle hook

Large shuttle hook B

152686-101

0189

Large shuttle hook A

152682-101

Tension spring

Tension spring B

144588-001

0191Q

Tension spring

145519-001

Bobbin case assembly

Bobbin case

assembly LA

S15902-401

Needle bar thread

guide A

S02438-001

0183

Needle bar thread guide

1639S

Bobbin case

assembly LB

S15903-401

Needle bar thread

guide A

S02438-001

Needle

0193

Feed plate

DP x 17#21 145646-021

BAS-341F

DP x 5#16

107415-016

Feed plate C

1972S

S47138-101

BAS-342F

Feed plate N

1967S

SA1513-001

Work clamp

Work clamp A

S42843-001

1288S

Work clamp A

S42843-001

Spring

107606-001

0190Q

Spring

104525-001

BAS-341F, 342F

14.NOTES ON THE PROCESSING AND PRODUCTION OF PLATE BLANKS

14. NOTES ON THE PROCESSING AND PRODUCTION OF PLATE BLANKS

Plate blank

After processing

* Chamfer other corners of the reverse side of the plate blank with a thickness of C0.3 or thicker, and finish the corners

with fine sand paper. Please carry out the foll owing points to chamf er the reverse s ide of the plat e blank when usi ng the plate b lank for any supplementary processing of material.

*Cross-section A -A’

After processing

Plate blank

1968S

Use fine sand paper or similar material to acquire a smooth surface for this section.

1969S 1970S

Point at which to us e sand paper, etc.

BAS-341F, 342F

15. TROUBLESHOOTING

Problem Cause Check Remedy Page

15. TROUBLESHOOTING

Presser does not rise.

Presser does not drop.

Presser lift amount is incorrect.

Solenoid-type work clamp lifts up without clamping the material.

Thread wiper does not operate correctly.

Work clamp operation is sluggish.

Presser lifter air tube is bent or damaged.

Work clamp operation is sluggish.

Presser lifter air tube is bent or damaged.

Incorrect position of presser arm lever F.

Work clamp pressur e is too light.

The thread wiper is obstructing the needle.

Thread wiper position is incorrect.

Sliding part of the work clamp lubrication

Presser lifter air tube

Sliding part of the work clamp lubrication

Presser lifter air tube

Distance b etween work clamp and top of needle plate

Check the setting of the memory switch (memo-35).

Clearance between thread wiper and ne edle t ip

Thread wiper position

Grease the sliding part of the work clamp.

Straighten the bend in the tube or replac e the tub e.

Grease the sliding part of the work clamp.

Straighten the bend in the tube or replac e the tub e.

Adjust the work clamp lift amount.

Increase the setting value of the memory switch (memo-35).

Adjust the height of the thread wiper.

Adjust the operating distance of the thread wiper.

Lower thread winds to one side.

Lower thread winding amount is incorrect.

Thread slips out of the needle.

Bobbin winder thread tension stud heights is incorrect.

Bobbin presser posit ion is incorrect.

Stitches being skipped at the sewing start.

Uneven upper thread length.

Position of shuttle race thread guide is incorrect

Bobbin winder thread tension stud height

Thread winding amount

Refer to “Skipped stitches occur”.

Upper thread length

Position of shuttle race thread guide

Adjust the height of the thread tension stud.

Adjust the position of the bobbin presser.

Refer to “Skipped stitches occur”.

Adjust the sub-tension. 13

Adjust the position of the shuttle race t hread guid e

BAS-341F, 342F

15. TROUBLESHOOTING

Problem Cause Check Remedy Page

Upper thread breaks.

Lower thread breaks.

Upper thread tension is too strong.

Needle is installed incorrectly.

Thread is too thick for the needle.

Thread take-up spring tension and height are incorrect.

Upper thread tension

Needle direction

Thread and needle

Thread take-up spring tension and height

Damaged or burred shuttle hook, needle hole

Damage or burring

plate or needle. Thread melting

(synthetic thread)

Thread edge

Thread path is incorrect. Thread

Lower thread tension is too strong.

Lower thread tension

Corners of needle ho le plate or bobbin case are dama

ed.

Damage

Adjust the upper thread tension.

Install the needle so tha t the groove is facing forward.

Use the correct thread for the needle.

djust the tension and height of the thread takeup spring.

File smooth or replace the affected part.

Use a thread cooling device.

Pass the thread correct ly along the thread path.

Adjust the lower thread tension.

File smooth or replace the affected part.

Clearance between needle

Skipped stitches occur.

and shuttle great.

Incorrect needle and shu t t l e hook timing.

Driver is contacting needle more than is necessary .

hook tip is too

Needle clearance

Needle bar lift amount

Clearance between driver and needle

Needle is bent. Bent needle

Needle is installed incorrectly.

Needle direction

Needle clearance Needle is touching the shu t t l e hook.

Needle bar lift amount

Needle breaks. Needle is bent. Bent needle

Needle moves about. Needle and thread

Adjust th e needle clea rance. the affected part.

Adjust the needle bar lift amount.

Adjust the driver needle guard.

Replace the needle.

Install the need le so that th e groove is facing forwar d.

Adjust the nee dl e cl ear a nc e. the groove is facing forward.

Adjust the needle bar lift amount.

Replace the needle.

Select the correct needle fo the sewing conditions. Reduce the sewing speed

Needle is too thin. Needle and thread

BAS-341F, 342F

Use the correct needle for the material.

15. TROUBLESHOOTING

Problem Cause Check Remedy Page

Upper thread is not trimmed.

Thread jamming.

Fixed knife is blunt. Fixed knife blade

Shuttle race thread

Movable knife does not

guide position

pick up the thread.

Needle bar lift amount

The movable knife does n ot pi c up the thread because of skipped stitches at the sewing end.

Movable knife position is incorrect.

Skipped stitches at sewing end

Movable knife position

Sub-tension is too weak. Sub-tension

Thread take-up spring tension and height are incorrect.

Incorrect needle and shu t t l e hook timing.

Shuttle race thr ead gu ide is not separating the threads.

Thread take up spring tension and height

Needle bar lift amount

Shuttle race thread guide position

Sharpen or replace the fixed knife.

Adjust the position of the shuttle race thread gudie.

Adjust the needle bar lift amount.

Refer to “Skipped stitches occur”.

Adjust the position of the movable knife.

Turn the sub-tension nut to adjust the tension.

djust the tension and height of the thread takeup spring.

Adjust the needle bar lift amount.

Adjust the position of the shuttle race thread guide.

Poor seam finish on reverse side of material.

Incorrect thread tightness.

Shuttle race thread guide is not separating the threads.

Upper thread is not properly tight.

Uneven upper thread length.

Upper thread tension is too weak.

Lower thread tension is too weak.

Thread take-up spring tension and height are incorrect.

Shuttle race thread guide position

Upper thread tension

Upper thread length

Upper thread tension

Lower thread tension

Thread take-up spring tension and height

Adjust the position of the shuttle race thread guide.

Adjust the upper thread tension.

Adjust the sub-tension.

Adjust the upper thread tension.

Adjust the lower thread tension.

djust the tension and height of the thread takeup spring.

BAS-341F, 342F

15. TROUBLESHOOTING

Problem Cause Check Remedy Page

Unstable upper thread length

Unstable needle up stop position

Improper tension and height of thread take-up sp ring

Improper adjustment of sub tension

Needle up stop position fluctuates.

Thread take-up spring tension and height

sub tension

See “Unstable needle up stop position”.

Fixed knife is blunt. Fixed knife blade

Inadequate adjustment of V belt tension

Electrical trouble

Tension pulley position

Refer to the details for [E. 22] in the error code table.

djust the tension and height of the thread takeup spring.

Adjust the sub tension.

Sharpen or replace the fixed knife.

djust the tension of the

V belt using the tension pulley

BAS-341F, 342F

16. OPTION

Programmer assy

■

Inner clamp device

One-touch clamping device

■

Milling device

■

Automatic bobbin changer

■

Used to create sewing patterns for the BAS-300E series. It can also be used to display error messages.

Used for efficient sewing around labels, emblems and tape; operates by air together with the outer presser, so material slippages will not occur.

Allows the clamp to be replaced quickly and easily, without the need for extra tools. The positioning adjustment that has been previously required for other clamps is no longer necessary.

This device can be used to cut a variety of objects such as grooves, holes, and outlines shapes in plastic or aluminum sheets.

When the amount of bobbin thread remaining becomes low, this device automatically replaces the bobbin. This reduces the need for tasks such as checking the amount of bobbin thread remaining and replacing bobbins, so that productivity can be increased.

■

Snap fastener and hook attachment device

Needle thread presser device

■

This attachment is for holding snap fasteners and hooks.

This allows the upper thread to be securely placed under the material for the first stitch at the sewing start.

BAS-341F, 342F

16.OPTION

■

Thread breakage detector

■

Needle cooler

■

OT Presser

■

Soft presser

■

Cassette presser

■

Play prevention work clamp

Available as rotary type or fiber type, stops sewing when a thread breakage is detected and warns the operator.

This is a pneumatic-type needle cooler which prevents the thread breaking due to heat. It is particularly useful when sewing thicker materials at high sewing speeds.

Use according to particular sewing needs in order to provide an even clamping force.

At the first stage, the work clamp applies only a spring force so that the material can be positioned. Then at the second stage, air pressure provides a full clamping force.

This allows the operator to hold two clamps so that the preparation for the next operation can be carried out while sewing is in progress. Overlapping operations are thus possible, which can greatly boost productivity.

This work clamp prevents any play from occurring in the clamp.

■

Thread wiper the side

■ Air wiper device

■ 2-step thread tension device

Wipes the upper thread away to the side when an inner clamping device is being used.

The thread wiper is driven by a pneumatic cylinder.

Allows the upper thread tension to be switched between two settings at any position desired by using the programmer.

BAS-341F, 342F

INSTRUCTION MANUAL

15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177

Printed in Japan

151-V41,42

SA1929-001

2002.11. H (1)

Brother BAS-342F, BAS-341F, 342Fi User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

Safety indications and their meanings

2 Notes on safety

3 Warning labels

CONTENTS

1. NAME OF EACH PARTS

2. SPECIFICATIONS

3. PREPARATION

3-1. Before setting up

3-2. Positioning

3-3. Tilting the sewing machine head

3-4. Connecting the ground wire

3-5. V-belt tension

3-6. Installing the foot switch

3-7. Installing the spool stand

3-8. Installing the programmer (option)

3-9. Adjusting the air pressure

4. LUBRICATION

4-1. Lubrication points

5. CORRECT USE

5-1. Selecting the needle and thread

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

5-3. Threading the upper thread

5-4. Winding the lower thread

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

5-6. Sewing conditions and thread tension

5-6-1. Sewing conditions

5-6-2. Lower thread tension 5-6-3. Upper thread tension

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

5-6-6. Pretension tension

6. USING THE OPERATION PANEL

6-1. Explanation of panel

6-2. Using the floppy disk

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

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

6-5. Using the emergency stop switch

6-6. Adjusting the sewing SPEED control

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

6-8. Using the bobbin thread counter

6-9. Using production counter

6-10.Using single split mode

6-1 1. Shifting a stitch pattern

7. SEWING

7-1. Before starting sewing....

7-2. Sewing operation

8. MAINTENANCE AND INSPECTION

8-1. Cleaning the shuttle hook

8-2. Lubrication

8-3. Draining the oil

8-4. Cleaning the control box air inlet port

8-5. Cleaning the eye guard

8-6. Checking the needle

9. STANDARD ADJUSTMENTS

9-1. Adjusting the needle bar height

9-2. Adjusting the needle bar lift amount

9-3. Adjusting the needle clearance

9-4. Adjusting the driver needle guard

9-5. Adjusting the shuttle race thread guide

9-6. Adjusting the movable knife

9-7. Presser foot adjustment

9-8. Changing the presser foot lift

9-9. Adjusting the wiper

9-10. Adjusting the needle up stop position

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

9-12. Checking the input voltage

9-13. Clearing all memory settings

10. DIP SWITCH

10-1. Panel DIP switch functions

10-2. DIP switches inside the control box

11. CHANGING SPECIAL FUNCTIONS AND USING THE MEMORY S WITCHES

12. ERROR CODES

13. GAUGE PARTS LIST ACCORDING TO SUBCLASSES

14.NOTES ON THE PROCESSING AND PRODUCTION OF PLATE BLANKS

15. TROUBLESHOOTING

16. OPTION