Brother BAS-341H, BAS-342H Instruction Manual

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INSTRUCTION MANUALINSTRUCTION MANUAL

BAS-341H BAS-342H

Please read this manual before using the machine. Please keep this manual within easy reach for quick reference.

DIRECT DRIVE

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 sewing machines, it is normal to carry out work while positioned directly in front of moving parts such as the needle and thread take-up lever, and consequently there is always a danger of injury that can be caused by these parts. Follow the instructions from training personnel and instructors regarding safe and correct operation before operating the machine so that you will know how to use it correctly.

BAS-341H, BAS-342H

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

This instruction manual and the indications and symbols that are used on the machine itself are provided in order to ensure

safe operation of this machine and to prevent accidents and injury to yourself or other people.

The meanings of these indications and symbols are given below.

Indications

DANGER

The instructions which follow this term indicate situations where failure to follow the instructions will result in death or serious injury.

WARNING

CAUTION

Symbols

･･････

The instructions which follow this term indicate situations where failure to follow the instructions could result in death or serious injury.

The instructions which follow this term indicate situations where failure to follow the instructions may result in minor or moderate injury.

This symbol ( ) indicates something that you should be careful of. The picture inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means “beware of injury”.)

This symbol ( ) indicates something that you must not do.

This symbol ( ) indicates something that you must do. The picture inside the circle indicates the nature of the thing that must be done. (For example, the symbol at left means “you must make the ground connection”.)

BAS-341H, BAS-342H

[2] Notes on safety

Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the control box cover. Touching areas where high voltages are present can result in severe injury.

Do not allow any liquids to get onto this sewing machine, otherwise fire, electric shocks or operating problems may occur. If any liquid gets inside the sewing machine (machine head or control box), immediately turn off the power and disconnect the power plug from the electrical outlet, and then contact the place of purchase or a qualified technician.

DANGER

WARNING

CAUTION

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as electrical line noise or static electric noise. Sources of strong electrical noise may cause problems with correct operation.

Any fluctuations in the power supply voltage should be within ±10% of the rated voltage for the machine. Voltage fluctuations which are greater than this may cause problems with correct operation.

The power supply capacity should be greater than the requirements for the sewing machine's power consumption. Insufficient power supply capacity may cause problems with correct operation.

The pneumatic delivery capability should be greater than the requirements for the sewing machine's total air consumption. Insufficient pneumatic delivery capability may cause problems with correct operation.

The ambient temperature should be within the range of 5°C to 35°C during use. Temperatures which are lower or higher than this may cause problems with correct operation.

The relative humidity should be within the range of 45% to 85% during use, and no dew formation should occur in any devices. Excessively dry or humid environments and dew formation may cause problems with correct operation.

In the event of an electrical storm, turn off the power and disconnect the power cord from the wall outlet. Lightning may cause problems with correct operation.

Do not connect anything to the USB port other than the USB memory. If this is not observed, problems with operation may result.

BAS-341H, BAS-342H

CAUTION

Installation

Machine installation should only be carried out by a qualified technician.

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

The sewing machine weighs approximately 160 kg. Use equipment such as a crane or hoist when installing the machine head and adjusting the height of the table. If you try to lift the machine head yourself, it may cause injuries such as back injury.

Do not connect the power cord until installation is complete. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

Hold the machine head with both hands when tilting it back or returning it to its original position. In addition, do not subject the machine head to extra force while it is tilted back. If this is not observed, the machine head may become unbalanced and fall down, and serious injury or damage to the sewing machine may result.

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

All cords should be secured at least 25 mm away from any moving parts. Furthermore, do not excessively bend the cords or secure them too firmly with staples, otherwise there is the danger that fire or electric shocks could occur.

Install the safety covers to the machine head and motor.

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

Use a table with a height of 84 cm or less. If the table is too high, the machine head may become unbalanced and fall down, and serious injury or damage to the sewing machine may result.

Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin. If the oil and grease get into your eyes or onto your skin, inflammation can result. Furthermore, do not drink or eat the lubricating oil or grease. They may cause diarrhea or vomiting. Keep the oil out of the reach of children.

Sewing

To prevent problems, do not use objects with sharp points to operate the LCD panel.

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

The sewing machine should not be used for any applications other than sewing.

Be sure to wear protective goggles when using the machine. If goggles are not worn, there is the danger that if a needle breaks, parts of the broken needle may enter your eyes and injury may result.

Turn off the power switch at the following times. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

• When replacing the bobbin and needle

• When not using the machine and when leaving the

machine unattended

Cleaning

Turn off the power switch before carrying out cleaning. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

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

Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury may result.

Do not touch any of the moving parts or press any objects against the machine while sewing, as this may result in personal injury or damage to the machine.

If an error occurs in machine operation, or if abnormal noises or smells are noticed, immediately turn off the power switch. Then contact your nearest Brother dealer or a qualified technician.

If the machine develops a problem, contact your nearest Brother dealer or a qualified technician.

BAS-341H, BAS-342H

iii

CAUTION

Maintenance and inspection

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

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

Turn off the power switch and disconnect the power cord before carrying out the following operations. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

• Inspection, adjustment and maintenance

• Replacing consumable parts such as the rotary

hook

Disconnect the air hoses from the air supply and wait for the needle on the pressure gauge to drop to “0” before carrying out inspection, adjustment and repair of any parts which use the pneumatic equipment.

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

When replacing parts and installing optional accessories, be sure to use only genuine Brother parts. Brother will not be held responsible for any accidents or problems resulting from the use of non-genuine parts.

If any safety devices have been removed, be absolutely sure to re-install them to their original positions and check that they operate correctly before using the machine.

To prevent accidents and problems, do not modify the machine yourself. Brother will not be held responsible for any accidents or problems resulting from modifications made to the machine.

BAS-341H, BAS-342H

[3] Warning labels

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

Be careful to avoid injury from moving parts.

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

*Safety devices

Devices such as eye guard, finger guard, thread take-up cover, motor cover, X motor cover, rear cover, solenoid cover, inner cover, outer cover, fixed cover and gas spring support cover

Direction of operation

Be careful not to get your hand caught when tilting back the machine head and returning it to its original position.

Do not hold, otherwise problems with operation or injury may occur.

BAS-341H, BAS-342H

Eye guard

Rear cover FL

Thread take-up cover

Rear cover FR

Inside cover R

Middle cover

Outside cover

Finger guard

Fixed cover

Solenoid cover

Motor cover

Rear cover

Inside cover L

Middle cover

Outside cover

Fixed cover

X motor cover

3461B

BAS-341H, BAS-342H

1. NAMES OF MAJOR PARTS ................ 1

2. SPECIFICATIONS ................................ 2

3. INSTALLATION.................................... 3

3-1. Table processing diagram ................................ 4

3-2. Installing the control box................................... 5 3-3. Installing the oil pan and support lever base.... 6

3-4. Installing the machine head.............................. 6 3-5. Tilting back and returning the machine head ... 7

3-6. Installing the gas spring .................................. 8

3-7. Installing the LCD panel ................................... 9

3-8. Installing the solenoid valve assembly ............. 10

3-9. Connecting the air tubes................................... 10

3-10. Installing the air hose...................................... 10

3-11. Installing the two-pedal foot switch................. 11

3-12. Installing the cords.......................................... 11

3-13. Connecting the ground wire............................ 15

3-14. Securing the cords and air tubes.................... 16

3-15. Connecting the power cord............................. 17

3-16. Installing the eye guard .................................. 20

3-17. Installing the cotton stand...............................20

3-18. Lubrication ...................................................... 21

3-19. Checking the machine head switch................ 22

4. PREPARATION BEFORE SEWING.....23

4-1. Installing the needle.......................................... 23

4-2. 2-pedal foot switch operation method .............. 23

4-3. Threading the upper thread .............................. 24

4-4. Winding the lower thread..................................26

4-5. Installing the bobbin case................................. 27

4-6. Thread tension.................................................. 28

4-6-1. Lower thread tension .............................. 28

4-6-2. Upper thread tension .............................. 29

4-7. Starting up ........................................................30

4-8. Setting 2-step operation for the work clamp.....31

7.STANDARD ADJUSTMENTS................36

7-1. Adjusting the sensitivity of the thread breakage

sensor ...............................................................36

7-2. Thread take-up spring.......................................37

7-3. Arm thread guide R...........................................37

7-4. Adjusting the needle bar height ........................38

7-5. Adjusting the needle and rotary hook timing.....38

7-6. Adjusting the driver (needle guard) position .....39 7-7. Adjusting the clearance between the

needle and rotary hook tip ................................39

7-8. Adjusting the shuttle race thread guide ............39

7-9. Rotary hook lubrication amount ........................40 7-10. Adjusting the position of the movable knife ....41

7-11. Replacing the movable and fixed knives ........43

7-12. Installing the feed plate ...................................44

7-13. Adjusting the thread wiper ..............................44 7-14. Intermittent presser foot installation position ..45

7-15. Adjusting the intermittent presser foot ............45

7-16. Adjusting the work clamp lift amount ..............47

7-17. Adjusting the air pressure ...............................47

7-18. Adjusting the speed controller.........................48 7-19. If processing the work clamps and the

feed plate to a shape that matches the

sewing pattern ................................................49

8. LIST OF ERROR CODES.....................51

9. TROUBLESHOOTING.......................... 57

5. SEWING................................................32

5-1. Sewing .............................................................. 32

5-2. Using the STOP switch..................................... 33

6. CLEANING ...........................................34

6-1. Cleaning the rotary hook ..................................34

6-2. Draining the oil.................................................. 34

6-3. Cleaning the regulator ...................................... 35

6-4. Checking the control box air inlet ports ............ 35

6-5. Cleaning the eye guard ................................... 35

6-6. Checking the needle ....................................... 35

6-7. Lubrication ........................................................ 35

BAS-341H, BAS-342H

1. NAMES OF MAJOR PARTS

(1) STOP switch (2) Power switch (10) Finger guard (3) Work clamp switch (11) Eye guard (4) Start switch (12) Thread take-up cover (5) Control box (13) Motor cover (6) Solenoid valve (7) LCD panel (8) Pulley (9) Cotton stand

Safety devices:

3462B

BAS-341H, BAS-342H

2. SPECIFICATIONS

Sewing machine Lock stitch pattern tacking sewing machine

Stitch formation Single needle lock stitch

Max. sewing speed 2,800 sti/min

Max. sewing area (XxY) BAS-341H: 250 x 160 mm BAS-342H: 300 x 200 mm

Feed mechanism Intermittent feed, pulse motor drive

Stitch length

Maximum No. of stitches 20,000 stitches (per program)

No. of sewing data items that can be stored

Work clamp lift method Pneumatic cylinder method

Work clamp height Max. 30 mm

2-step work clamp Integrated-type work clamp

Intermittent presser foot lift amount Intermittent presser foot stroke

Hook Double-capacity shuttle hook

Wiper device Standard equipment

Thread trimmer Standard equipment

Digital tension Standard equipment

Thread breakage detector Standard equipment

Cycle programs 30

Motor 550 W AC servo motor

Weights

Power source

Air pressure 0.5 MPa 1.8 l/min.

(*1) The number of data items and stitches that can be stored will vary depending on the number of stitches in each

program. No guarantees of operation can be given for any media.

999 (Internal memory, SD card, USB memory) (*1)

2 − 4.5 mm, 4.5 − 10 mm or 0 (Default setting 3 mm)

Machine head Approx. 160 kg, LCD panel Approx. 0.8 kg

Control box 12 kg (Differs depending on destination)

Single-phase 220V / 230V, 3-phase 220V / 380V / 400V

(For three-phase 380 V/400 V, the trans box is required.)

0.05 − 12.7 mm

22 mm

BAS-341H, BAS-342H

3. INSTALLATION

CAUTION

Machine installation should only be carried out by a qualified technician.

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

The sewing machine head weighs approximately 160 kg. Use equipment such as a crane or hoist when installing the machine head and adjusting the height of the table. If you try to lift the machine head yourself, it may cause injuries such as back injury.

Do not connect the power cord until installation is complete. If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

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

Use a table with a height of 84 cm or less. If the table is too high, the machine head may become unbalanced and fall down, and serious injury or damage to the sewing machine may result.

Hold the machine head with both hands when tilting it

back or returning it to its original position.

In addition, do not subject the machine head to extra

force while it is tilted back. If this is not observed, the

machine head may become unbalanced and fall down,

and serious injury or damage to the sewing machine

may result.

All cords should be secured at least 25 mm away from

any moving parts. Furthermore, do not excessively

bend the cords or secure them too firmly staples,

otherwise there is the danger that fire or electric

shocks could occur.

Be sure to connect the ground. If the ground

connection is not secure, you run a high risk of

receiving a serious electric shock, and problems with

correct operation may also occur.

Install the safety covers to the machine head and

motor.

BAS-341H, BAS-342H

3. INSTALLATION

3-1. Table processing diagram

・ The thickness of the table should be at least 50 mm, and it should be strong enough to bear the weight and vibration of the

sewing machine.

・ If using casters, use ones which can bear the total weight of sewing machine and table. ・ Check that the control box is at least 10 mm away from the leg. If the control box and the leg are too close together, it may result

in incorrect sewing machine operation.

3635B

BAS-341H, BAS-342H

3. INSTALLATION

3-2. Installing the control box

The control box is heavy, so installation should be carried out by two or more people. In addition, take steps to make sure that the control box does not fall down. If this is not done, injury to feet or damage to the control box may result.

CAUTION

3606B

10mm or more

Leg

Operator

3599B

3608B

(1) Control box

(2) Bolts [4 pcs.]

(3) Plain washers [4 pcs.]

(4) Spring washers [4 pcs.]

(5) Nuts [8 pcs.]

NOTE:

Check that the control box (1) is at

least 10 mm away from the leg. If the

control box (1) and the leg are too

close together, it may result in

incorrect sewing machine operation.

(6) Power switch

(7) Wood screws [2 pcs.]

(8) Staples [7 pcs.]

NOTE:

Take care when tapping in the staples

(8) to make sure that they do not

pierce the power cord.

BAS-341H, BAS-342H

3-3. Installing the oil pan and support lever base

Table

3964M

3. INSTALLATION

(1) Oil pan

(2) Wood screws [4 pcs.]

(3) Oiler

(4) Support lever base

(5) Plain washers [2 pcs.]

(6) Spring washers [2 pcs.]

(7) Bolts [2 pcs.]

3-4. Installing the machine head

2585B

1. Place the machine head onto the

table.

NOTE:

・ Use a crane or hoist to install the

sewing machine.

・ Be careful of the following when

lowering the machine head onto the

table.

! Do not let any cords get clamped

between the machine head and

the table.

! Do not place the machine head

cushion (c) on top of the oil pan

(a) or the support lever base (b).

! Do not let the side (d) of the

machine head switch lever touch

the support lever base (b).

(1) Rubber bushes (2 pcs.)

(2) Hinge holders (2 pcs.)

(3) Plain washers [4 pcs.]

(4) Spring washers [4 pcs.]

(5) Bolts [4 pcs.]

(Continued on next page)

BAS-341H, BAS-342H

3. INSTALLATION

2. After placing the machine head onto the table, remove the bolt (6) and the spacer (7).

* The bolt (6) and the spacer (7) are necessary for

securing the support lever (8) when the machine head is removed from the table, so keep them in a safe place.

3. Pass the support lever shaft (9) through the hole in the support lever base (10) and through the groove (f) in the support lever (8), and push it in until it is flush with the surface of the support lever base (10).

* Be sure to insert so that the groove (g) in the support

lever shaft (9) faces in the direction shown in the illustration.

Flush

* If it is difficult to pass the support lever shaft (9) through

the groove (f) in the support lever (8), move the end of the support lever (8) up and down while passing the support lever shaft (9) through.

3601B

3-5. Tilting back and returning the machine head

CAUTION

Always be sure to engage the stopper of the support lever (1) when tilting back the machine head. If the stopper is not engaged, the machine head may return to its original position and your hands may get caught and injury may result.

When disengaging the stopper, hold it by the knob (a). If you hold at the place indicated by (b), your hand will get caught between the support lever (1) and the table when the machine head is returned to its original position and injury will result.

Disengaging the stopper

Engaging the stopper

The machine head can be tilted back and returned to one of three heights.

3967M

BAS-341H, BAS-342H

3-6. Installing the gas spring

3466B

Crane or hoist

Engaging the stopper

3. INSTALLATION

Disengaging the stopper

1. Tilt back the machine head, and then secure the support lever (1) at stopper position (a).

(Refer to "3-5. Tilting back and returning the machine head".)

NOTE: Use equipment such as a crane or hoist to tilt back the machine head.

2. Tighten the two set screws (2) to secure the support lever shaft (3).

Be sure to install so that the side with “UP” on it is facing upward.

(10) Gas spring shaft D

(11) Plain washers [2 pcs.]

(12) Retaining rings E [2 pcs.]

(13) Bolts [4 pcs.]

(14) Plain washers [4 pcs.]

(15) Spring washers [4 pcs.]

(16) Nuts [4 pcs.]

(17) Gas spring shaft U

(18) Set screw

* After installing the gas spring (8), gently

Note that the L and R shapes are different.

2915B

3. Install the gas spring (8).

(4) Gas spring holders [L and R]

(5) Spacer

(6) Bolt

(7) Nut

(8) Gas spring

(9) Shaft collars [2 pcs.]

return the machine head to its original

position.

(Refer to "3-5. Tilting back and returning

the machine head".)

BAS-341H, BAS-342H

3. INSTALLATION

3-7. Installing the LCD panel

3574B

(1) Cradle

(2) Rubber cushion

(3) Wood screws [4 pcs.]

(4) Setting plate

(5) Flat screws [4 pcs.]

(6) LCD panel

(7) Staples [2 pcs.]

・ Pass the cord of the LCD panel (8)

through the table hole, and then insert it into the (PANEL) connector (9) on the side of the control box.

・ Tighten the four wood screws (3) so

that the thickness of the rubber cushion (2) is 5 mm.

BAS-341H, BAS-342H

3-8. Installing the solenoid valve assembly

3-9. Connecting the air tubes

Plugs 4

Connect as shown in the illustration while checking the marks.

Branch unions Y

2562B

3. INSTALLATION

Install underneath the work table. (Refer

to "3-1. Table processing diagram" for the

installation positions.)

(1) Solenoid valve assembly

(2) Washers [2 pcs.]

(3) Wood screws [2 pcs.]

NOTE:

Make sure that the solenoid valve

assembly does not touch the control

box or the leg of the table.

2563B

3-10. Installing the air hose

Open

2564B

BAS-341H, BAS-342H

1. Close the cock (1).

2. Turn the nut (3) at the end of the air hose (2) and connect it

to the valve (4).

3. Open the cock at the compressor.

* Check that no air is leaking from the connection of the

valve (4) and air hose (2).

4. Open the cock (1).

(The meter pointer will turn clockwise.)

NOTE:

Turn the cock (1) gently to open it.

5. Adjust the air pressure. (Refer to "7-18. Adjusting the speed

controller".)

3. INSTALLATION

3-11. Installing the two-pedal foot switch

3530B

(1) Two-pedal foot switch (2) Conversion harness

Connect the connector for the two-pedal foot switch (1) to the conversion harness (2). Insert the conversion harness (2) into the P15 (PEDAL) connector on the main P.C. board. (Refer to "3-12. Connecting the cords".) * Be sure to make the ground connection. (Refer to “3-13.

Connecting the ground wire”.)

<Two-pedal foot switch operating method>

When the work clamp switch (left) is depressed, the work clamp is lowered, and when the start switch (right) is depressed, the sewing machine starts sewing.

Work clamp switch (2-step)

Start switch

4923Q

3-12. Connecting the cords

1. Remove the cover of the control box.

2. Loosen the two screws (1), and then open the cord presser plate (2) in the direction of the arrow.

3. Pass the bundle of cords from the machine head through the hole in the table, and then pass it through the hole in the control box together with the solenoid valve.

4. Securely connect the connectors as indicated in the table.

(Refer to next page)

NOTE:

・ Check that the connector is facing

the correct way, and then insert it firmly until it locks into place.

・ Secure the cables with cable ties

and cord clamps, while being careful not to pull on the connector.

3568B

BAS-341H, BAS-342H

3. INSTALLATION

< Main P. C. board >

Lock the cord clamp securely.

Press the tab.

3672B

X pulse motor encoder [5-pin] White P17 (X-ENC) (2) Y pulse motor encoder [5-pin] Blue P18 (Y-ENC) (2) Intermittent presser foot pulse motor encoder [5-pin] Black P19 (P-ENC) (2) Machine head switch [3-pin] P14 (HEAD-SW) (2) Conversion harness [7-pin] White P15 (PEDAL) (2) Machine head memory [6-pin] P16 (HEAD-M) (2) Thread trimmer solenoid [6-pin] P2 (SOL1) (1) Digital tension solenoid / Tension release solenoid [4-pin] P3 (SOL2) (1) X pulse motor [4-pin] White P21 (XPM) (1) Y pulse motor [4-pin] Blue P22 (YPM) (1) Work clamp pulse motor [4-pin] Black P23 (PPM) (1) Home position sensor [12-pin] White P8 (SENSOR1) (2) (3) STOP switch [6-pin] White P9 (HEAD) (2) (3) Valve harness [12-pin] P35 (EX-OUT1) (2) (3) Upper thread breakage detector [2-pin] White P36, P9(HEAD) (2) (3) Fan [6-pin] P7 (SENSOR2) (2) (3)

Connectors

Connection location on

main P. C. board

Cord clamps /

cable ties

NOTE: Route the X, Y and work clamp pulse motor harnesses so that they do not touch the power supply P.C. board at

the bottom of the control box.

BAS-341H, BAS-342H

+ 49 hidden pages

Brother BAS-341H, BAS-342H Instruction Manual

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

[2] Notes on safety

[3] Warning labels

CONTENTS

1. NAMES OF MAJOR PARTS

2. SPECIFICATIONS

3. INSTALLATION

3-1. Table processing diagram

3-2. Installing the control box

3-3. Installing the oil pan and support lever base

3-4. Installing the machine head

3-5. Tilting back and returning the machine head

3-6. Installing the gas spring

3-7. Installing the LCD panel

3-8. Installing the solenoid valve assembly

3-9. Connecting the air tubes

3-10. Installing the air hose

3-11. Installing the two-pedal foot switch

3-12. Connecting the cords