Brother BAS-761 User Manual

BAS-761

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

AUTOMATIC POCKET SETTER <JEANS>

INSTRUCTION MANUAL

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 there 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 the machine correctly.

SAFETY INSTRUCTIONS

z 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

CAUTION

Symbols

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

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

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

The instructions which follow this term indicate situations where failure to follow the instructions could cause injury when using the machine or physical damage to equipment and surroundings.

inside the triangle indicates the nature of the caution that must be taken. (For example, the symbol at left means "beware of injury".)

) indicates something that you must not do.

) 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".)

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x 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 face plate of the control 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 free from sources of strong electrical noise such as high-frequency welders. 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 electrical 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.

Avoid exposure to direct sunlight during use. Exposure to direct sunlight 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.

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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 weights more than 400 kg. The installation should be carried out by two or more people.

Do not connect the power cord until installation is complete, otherwise the machine may operate if the start switch is pressed 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.

This sewing machine should only be used by operators who have received the neccessary 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.

Attach all safety devices before using the sewing machine. If the machine is used without these devices attached, injury 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, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diarrhoea. Keep the oil out of the reach of children.

Avoid setting up the sewing machine near sources of strong electrical noise such as high-frequency welding equipment. If this precaution is not taken, incorrect machine operation may re

Have two people present to hold the machine head with both their hands when tilting it back or returning it to its original position.

Sewing

Turn off the power switch at the following times, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.

• When replacing the 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 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 nearese Brother dealer or a qualified technician.

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

iii

CAUTION

Cleaning

Turn off the power switch before starting any cleaning work, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.

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 from the wall outlet at the following times, otherwise the machine may operate if the start switch is pressed by mistake, which could result in injury.

• When carrying out inspection, adjustment and maintenance

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

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

Use only the proper replacement parts 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.

• When replacing consumable parts such as the rotary hook and knife

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.

Have two people present to hold the machine head with both their hands when tilting it back or returning it to its original position.

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c 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.

Moving parts may cause injury.

Operate with safety de vices . Turn off main switch before changing needle, cleaning etc.

Safety devices: Thread take-up cover,

Guard bar, Belt cover, etc.

Hazardous voltage will cause injury.

Turn off main switch and wait 5 minutes before opening this cover.

Hochspannung verletzungsgefahr!

Bitte schalten sie den hauptschalter aus und warten sie 5 minuten, bevor sie diese abdeckung ffnen.

Un voltage non adapt provoque des blessures.

Eteindrel’interrupteur et attendre 5 minutes avantd’ ouvrir le capot

Direction of operation

Un voltaje inadecuado puede provocar las heridas.

Apagar el interruptor principal y esperar 5 minutos antes de abrir esta cubierta.

Thread take-up cover

Belt cover Guard bar

Guard bar

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1. Names of Machine Components .............................................................................................................. 1

2. Specifications ............................................................................................................................................. 2

3. Installation .................................................................................................................................................. 3

3-1. Installation of the machine table ..................................................................................................... 3

3-2. Removal of the fixing bolts from the machine .............................................................................. 4

3-3. Installation of the spool stand ......................................................................................................... 4

3-4. Connection of the foot-switch connector ....................................................................................... 5

3-5. Connection of the air hose ............................................................................................................... 5

3-6. Positioning of the front supporter ................................................................................................... 5

3-7. Installation positions for operation box and switch box ............................................................... 6

3-8. Installation of the folding group assembly .................................................................................... 7

4. Lubrication .................................................................................................................................................. 8

5. Correct operation ....................................................................................................................................... 9

5-1. Installing the needle ......................................................................................................................... 9

5-2. Upper threading ............................................................................................................................... 9

5-3. Bobbin case threading ..................................................................................................................... 10

5-4. Bobbin thread winding .................................................................................................................... 11

5-5. Thread tension .................................................................................................................................. 12

6. Button functions ........................................................................................................................................ 13

6-1. Operation box panel buttones ......................................................................................................... 13

6-2. Switch box panel buttones .............................................................................................................. 16

6-3. Foot switch ........................................................................................................................................ 17

6-4. RESTART buttones ........................................................................................................................... 17

7. Setting before sewing ............................................................................................................................... 18

7-1. Setting the folder mode ................................................................................................................... 18

7-2. Setting the sewing speed and the bar tacking speed .................................................................... 18

7-3. Setting the lower thread counter .................................................................................................... 20

7-4. Setting the piece counter ................................................................................................................. 21

7-5. Setting the stacker roller feed amount ........................................................................................... 21

7-6. Setting the date and time ................................................................................................................ 22

8. Preparation for sewing .............................................................................................................................. 23

9. Sewing ........................................................................................................................................................ 25

9-1. Sewing with the folder in automatic mode ....................................................................................25

9-2. Sewing with the folder in pattern matching mode ........................................................................ 26

9-3. Sewing with the folder in label attachment mode......................................................................... 27

9-4. Sewing with the folder in step mode .............................................................................................. 28

9-5. Test feeding ....................................................................................................................................... 29

9-6. Emergency stop ................................................................................................................................ 30

10. Adjustments ............................................................................................................................................... 31

10-1. Needle-bar height adjustment ......................................................................................................... 31

10-2. Needle and rotary hook timing ........................................................................................................ 32

10-3. Presser foot height adjustment........................................................................................................ 32

10-4. Removal of the fixed knife and the movable knife ......................................................................... 33

10-5. Stacker position adjustment ............................................................................................................ 34

10-6. Sewing clamp assembly number selection ....................................................................................35

11. Using the DIP switches.............................................................................................................................. 36

12. Table of error code ..................................................................................................................................... 38

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1. Names of Machine Components

!7 !6

q Foot-switch w Stacker e Guard bar

r Feed roller t Machine head y Spool stand

u Top cover i Control box o Switch box

!0 Folding group assembly !1 Mechanical valve !2 RESTART buttons

!3 Front supporter !4 Floppy drive !5 Programmer

!6 Air unit valve !7 Power switch !8 Blower Motor

!9 2-Step thread tension device @0 Thread breakage detector @1 Pocket support

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2. Specifications

Applicable machine type

Use

Cycle time

Sewing speed

Bar tacking speed

Sewing range

Sewing pitch

Needle racking width

at first bar tacking

Cloth setting

Machine head drive

Machine body drive

Memory medium

Lock stitch and special cross stitch sewing machine with automatic thread trimmer

Sewing pockets on the various types of jeans

9 seconds approx. (depending on the pitch and rpm)

500 – 4250rpm (9-step button selectable; limited by sewing condition)

500 – 3500rpm (7-step button selectable; cannot exceed sewing speed)

250 (X) mm ⳯ 250 (Y) mm Standard (when not using retractable work clamp)

250 (X) mm ⳯ 200 (Y) mm For retractable work clamp (restrictions may occur because of shape)

0.05 – 6.00mm

Maximum of 3.5 mm

Overlapping possible

AC servo direct motor type

X-axis for a clamp shift, Y-axis for a machine shift, AC servo motor (750W).

3.5-2HD inch floppy disk

64 patterns (Maximum of 1,000 stitches for each pattern)

Jig attaching/

detaching method

Stacker

Programmer

Power source

Air pressure

Machine dimensions

Weight

Upper-thread breakage

detector

Label attachment device

Air chuck; one-touch operation requiring less than 2 minutes

Included (Stacking capacity 60 pieces)

Included

3-phase 200V, 220V, 380V, 400V, 415V ( 900W)

0.44 – 0.54MPa

(W) 2.108mm, (L) 1.919mm, (H) 970mm

400kg

Included

Included (option)

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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 weights more than 400 kg. The installation should be carried out by two or more people.

Co not connect the power cord until installa tion is complete, otherwise the machine 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.

Do not place any objects on top of the top cover, otherwise such objects may fall down onto the machine. If you need to put something on top of the top cover, place it inside a box or similar to secure it so as to stop it from falling down.

Avoid setting up the sewing machine near sources of strong electrical noise such as high-frequency welding equipment. If this precaution is not taken, incorrect machine operation may result.

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.

Note:

¡ This sewing machine has a movable machine head and work clamp. Be careful not to place other objects within

the moving range of these parts.

¡ Supply power directly from a receptacle for the machine's exclusive use. ¡ Be sure to power off when installating.

3-1. Installation of the machine table

1. Secure the level adjusters q so that the table top re-

main level.

2. The table has eight level adjusters. If the table does not

sit well, loosen nuts w and turn the level adjusters q to level the table.

Note:

There are eight adjusting points.

To move the machine, turn up adjusters q, and the table

can be moved on its machine body casters e.

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3-2.Removal of the fixing bolts from the machine

The machine head and the sewing clamp arm are fixed with bolts to secure them during transportation.

Remove fixing bolt q on the machine head through the hole in the front cover.

Note:

¡ Save removed fixing bolts q future use. ¡ Before transporting the machine be sure to secure it with the fixing bolts.

3. Installation

3-3. Installation of the spool stand

Install the spool stand as shown in the illustration at left.

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3. Installation

3-4. Connection of the foot-switch connector

3-5. Connection of the air hose

1. Attach air hose q to air unit valve w.

2. Move the upper cap of air unit valve w upward and ad-

3. After adjustment, move the cap downward and lock.

Connect connector q securely.

just the air pressure to 0.49 MPa.

3-6. Positioning of the front supporter

1. Loosen bolts q and position front supporter w in the most appropriate position.

2. Tighten bolts q to secure the supporter w.

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3-7. Installation positions for operation box and switch box

Loosen the mounting bolts e for the operation box q

and switch box w, and move them in the direction of the arrow to a position where they are comfortable to operate.

3. Installation

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3. Installation

3-8. Installation of the folding group assembly

Before installation

¡ Apply air pressure. ¡ Turn on power switch q to return the machine to the home position. ¡ Turn valve switch w to OFF (lower) side and "E-820" will flash on the display.

t w

!3 !2

1. Install folding clamp assembly e onto folding base r.

2. Attach multi-connector t.

3. While pushing the folding clamp assembly e downwards with your hand, install the inner clamp assembly y to the folding base r. For models with a label attachment device u, install the plug i of the label attachment device u to the socket o. At this time, set the label attachment device u so that it is in a ready condition on top of the inner clamp assembly. (Refer to page 27.) If it is reversed, it will turn downward.

4. Install center blade assembly !0 on folding base r.

5. Install sewing clamp assembly !1 on sewing clamp assembly arm base !2.

6. Install the multi-connector !4 and the dual sensor harness assembly !3.

7. Set the valve switch w to ON (up position). The "E-820" indication will disappear from the display panel and the panel will return to its previous condition.

8. Move folding clamp assembly e, inner clamp assembly y, center blade assembly !0 and sewing clamp assembly !1 back and forth, and right and left, to ensure they are secured.

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4. Lubrication

Note:

Check for sufficient oil through oil gauge windows A and B on the machine head and the table. If the oil amount is not sufficient, be sure to replenish it.

How to oil the machine head

Replenish the oil through oil port q.

How to oil the machine table

1 Move the machine head forward so that the lubrication hole e in the needle plate bracket RR w and the lubri-

cation port r in the machine bed are aligned.

2 Apply oil to the lubrication port r in the machine bed through the lubricationhole e in the needle plate bracket

RR w.

Note:

Before initial operation of the machine or after a long interval, be sure to drip a few drops of oil onto the arrowed lubrication point C.

How to drain oil from the machine body

Remove poly-oiler t and drain the oil.

Rotary hook lubrication control

Turn the rotary hook lubrication adjustment valve y to adjust the lubrication amount.

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5. Correct operation

5-1. Installing the needle

5-2. Upper threading

1. Apply air pressure and turn on power switch.

Fully insert needle q, with its long groove to the left, and secure it with screw w.

Note:

If the angle is incorrect, the needle an rotary hook will lock when the needle bar is at its lowest position, so make sure that the needle and rotary hook do not lock.

2. Press the FOLDER RESET button !9 to move the machine head back to the home position.

3. Press FOOT button !1 and lower presser foot w.

4. Pass the upper thread as illustrated below. After threading, be sure to press FOOT button !1 and lift presser foot w.

5. After threading, turn the pulley and lift the needle-bar to the uppermost position.

N/thread cooler assy

■ x2.4 rotary hook■ x2.4 rotary hook

Leave about 50 mm of thread end with the thread take-up at its highest position.

■ x1.7 rotary hook

50mm

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■ x1.7 rotary hook

5-3. Bobbin case threading

■ Removal of the bobbin case

5. Correct operation

1. Press BOBBIN CHANGE button !4 and the machine will move toward you and stop;

2. Take out bobbin case q. Replace the bobbin.

■ Removal of the bobbin

■ x2.4 rotary hook ■ x1.7 rotary hook

Latch

3. If the RESTART buttones @0 are pressed after the RESET button @1 has been pressed, the machine head will move back to the home position.

Bobbin w can be removed when the latch is released.

■ Bobbin case threading

■ x2.4 rotary hook

■ x1.7 rotary hook

1. Insert the bobbin into the bobbin case.

2. Pass the thread through slot e and under adjustment spring r.

3. Pull the thread out from adjustment spring r.

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5. Correct operation

5-4. Bobbin thread winding

1. Pass the bobbin thread from the spool stand as illustrated below.

2. Wind the thread around the bobbin q as arrwed.

3. Press lever w against the bobbin q.

4. After completing bobbin q thread winding, cut the thread.

Note:

Check for any idle rotation of the bobbin q. The motor may overheat, if the bobbin q idles for a long time or if it rotates without a bobbin. At this time, protector e will go up and the bobbin thread winding motor will not start. If protector e is pressed after about 20 seconds has elapsed, bobbin theread winding can be restarted.

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5-5. Thread tension

■ x2.4 rotary hook ■ x1.7 rotary hook

Low

Stitches when upper thread tension is too low

Stitches when upper thread tension is too high

Correct stitches

5. Correct operation

■ x2.4 rotary hook

■ x1.7 rotary hook

High

1. When the thread take-up lever is in the highest position after thread trimming, adjust the upper thread beyond the needle eye so as it is 30 to 40 mm long, by turning tension nut q. (30 - 70 g is standard).

2. Adjust the lower thread tension by turning tension regulating screw w. (40 - 60 g is standard.)

3. Adjust the upper thread tension by turning tension nut e and r after lowering the presser foot.

Note:

Then adjust the tension 30 - 40 g by turning tension nut r. Main adjust is performed by using tension nut e. x2.4 rotary hook 150 - 200 g is standard.

()

x1.7 rotary hook 200 - 220 g is standard.

■ Thread take-up spring

High

■ x2.4 rotary hook

■ x1.7 rotary hook

30 - 60g

40 - 80g

1. The standard height of the thread take-up spring q is when the stroke is 5 to 8 mm.In addition, the standard tension in the thread take-up spring is 30 g to 60 g (x1.7 rotary hook 40 - 80g). (The tension in the thread take-up spring when it is pulling the upper thread straight to the side at the point where the spring starts to move.)

2. To adjust the thread take-up spring height, loosen set-screw w and turn the whole unit of the tension regulator assembly.

3. To adjust the thread take-up spring force, insert a screwdriver tip into the groove of tension stud e and turn it as much as is appropriate.

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5 - 8mm

6. Button functions

6-1. Operation box panel buttones

q LCD screen

Displays sewing information and error messages.

w FOLDING MODE button

This button is used to change the operating mode of the folder. Folder operating modes include automatic mode, pattern matching mode, label attachment mode and step mode.

e LABEL button (LABEL indicator)

When the folder is in label attachment mode (for alternate label attachment) or in step mode, this button is used to set whether label attachment operations are carried out or not. The indicator at the side of the button illuminates and switches off each time the button is pressed. When the indicator is illuminated, label attachment operations are carried out.

r STACKER button (STACKER indicator)

This button is used to set whether stacking operations are carried out after sewing. The indicator at the side of the button illuminates and switches off each time the button is pressed. When the indicator is illuminated, stacking operations are carried out.

t STEP button

When the folder is in step mode, it can be moved forward one step at a time each time this button is pressed, in order to check the folding operation. If this button is pressed while the foot switch @3 is being depressed, the folder will move in reverse.

y FLOPPY button

This button is used to store and retrieve sewing programs using a floppy disk.

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6. Button functions

u SEWING SPEED button

This button is used to set the sewing speed and bar tacking speed. The sewing speed can be set in 9 steps from 500 to 4,250 rpm, and the bar tacking speed can be set in 7 steps from 500 to 3,500 rpm.

i COUNTER button

This button is used to set the lower thread counter, piece counter decrement (cleared when 0), stacker roller feed amount, date and time. The setting item changes each time this button is pressed.

o THREAD MONITOR button (THREAD MONITOR indicator)

This button is used to set whether or not sewing stops automatically when an upper thread breakage occurs. The indicator at the side of the button illuminates and switches off each time the button is pressed. When the indicator is illuminated, upper thread breakages are detected.

!0 STEP BACK button

This button is used to resume sewing after an upper thread breakage occurs. The feed mechanism moves in reverse while this button is being pressed.

!1 FOOT button

This button is used to raise and lower the presser foot. The presser foot moves up and down each time this button is pressed.

!2 TEST button (TEST indicator)

This button is used to carry out test feeding in order to check the number of stitches. Feeding is carried out without the machine head operating. The indicator at the side of the button illuminates and switches off each time the button is pressed. When the indicator is illuminated, test operation is being carried out. When the indicator is switched off, normal sewing is carried out.

!3 FAST button

This button is used to increase the seed of step back or test operation. The feed mechanism moves faster while this button is being pressed. In addition, this button can also be used to set the piece counter to 0 (cleared).

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6. Button functions

!4 BOBBIN CHANGE button

If this button is pressed when changing the bobbin, the machine head can be moved forward to make bobbin changing easier.

!5 CANCEL button

If this button is pressed during folder mode setting, while data is being saved to or read from a floppy disk, while the sewing speed is being set or if the COUNTER button is being used to change a setting, the setting changes or operations will be canceled and the setting mode will be exited.

!6 ENTER button

!7 Warning indicator

This indicator illuminates when an abnormality occurs or when the EMERGENCY STOP button has been pressed.

!8 Arrow keys

If this button is pressed during screen selection, folder mode setting, while data is being saved to or read from a floppy disk, while the sewing speed is being set or if the COUNTER button is being used to change a setting, the setting value or mode can be changed.

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6-2. Switch box panel buttones

6. Button functions

!9 FOLDER RESET button (carries out positioning when the power is turned on)

This button is used to stop the folder while folding is in progress and to reset he folding condition. When the button is pressed once, folding is stopped, and when it is pressed twice, the folder is reset, and the workpiece and the pocket can then be set.

@0 START button

This button is used to resume sewing after an emergency stop has occurred during sewing or after an upper thread breakage has occurred. It should be pressed after the RESET button has been pressed. In addition, if an error has occurred, this button is used to continue operation after the cause of the error has been eliminated.

@1 RESET button

This button is used to trim the thread after an emergency stop has occurred during sewing or after an upper thread breakage has occurred. In addition, if an error has occurred, this button is used to clear the error status after the cause of the error has been eliminated.

@2 EMERGENCY STOP button

This button is used to stop all operations.

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6. Button functions

6-3. Foot switch

Foot switch @3 When the folder is in automatic mode, this switch is used to operate the vacuum system. When the folder is in pattern matching mode, this switch is used to raise and lower the folder table to carry out pattern matching. When the folder is in label attachment mode, this switch is used to carry out label attaching. When the folder is in step mode, this switch operates in the same way as in label attachment mode or automatic mode, depending on whether label attachment operations are being carried out or not.

6-4. RESTART buttones

RESTART buttones @4 When these buttones are pressed simultaneously, the folder starts operating.

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7. Settings before sewing

Press

FOLDER RESET SW

to start searching for home position.

7-1. Setting the folder mode

FOLDING MODE

Screen 1

Note

Background color of the selected mode turns reverse on display.

AUTO

PATTERN LABEL STEP

1. Turn on the air pressure and then turn on the power switch. The screen shown at left will be displayed on the panel.

2. Press the FOLDER RESET button !9. The machine head will move to the home position and then stop in the standby condition.

1. Press the FOLDING MODE button w. Screen 1 will then be displayed.

2. Press the arrow keys !8 to select the mode.

If the CANCEL button !5 or FOLDING MODE button w is pressed once more, the mode will not be changed and the screen will return to the original display.

3. Press the ENTER button !6. The new mode will be set and the screen will return to the original display.

7-2. Setting the sewing speed and the bar tacking speed

¡ These settings can be made when the machine head is at the standby position, while the bobbin is being replaced

and while sewing is stopped.

¡ The bar tacking speed cannot be greater than the sewing speed. If the bar tacking speed is set to a faster speed

than the sewing speed, the bar tacking speed will become the same as the sewing speed when sewing is actually carried out.

Change sewing speed.

SEWING SPEED

4000 rpm

Screen 2-1

1. Press the SEWING SPEED button u. Screen 2-1 will then be displayed.

2. Press the arrow keys !8 to select the desired sewing speed.

The sewing speed can be set in 9 steps from 500 to 4,250 rpm. * If the CANCEL button !5 is pressed, the sewing speed

will not be changed and the screen will return to the original display.

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7. Settings before sewing

Change tack speed.

TACK SPEED 3000 rpm

Screen 2-2

* If the SEWING SPEED button u is pressed once

more, the sewing speed will not be changed, and screen 2-2 for changing the bar tacking speed will be displayed.

3. Press the ENTER button !6. The sewing speed will be changed to the new setting, and screen 2-2 for changing the bar tacking speed will be displayed.

4. Press the arrow keys !8 to select the desired bar tacking speed.

The bar tacking speed can be set in 7 steps from 500 to 3,500 rpm. * If the CANCEL button !5 or SEWING SPEED button

u is pressed, the bar tacking speed will not be changed and the screen will return to the original display.

Change sewing speed.

SEWING SPEED

4000 rpm

Screen 2-1

5. Press the ENTER button !6. The bar tacking speed will be changed to the new setting, and the screen will return to the initial display.

¡ The maximum number of stitches is limited by the

sewing pitch in the sewing data as shown in the table below.

Pitch

– 3.5mm

3.55 – 4.5mm

4.55 – 5.0mm

5.05 – 6.0mm

Max. sewing speed

4250rpm 3500rpm 3000rpm 2500rpm

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7. Settings before sewing

7-3. Setting the lower thread counter

¡ The lower thread counter determines how many workpieces can be produced according to the amount of lower

thread which has been wound inside the bobbin case.

¡ This setting can be made when the machine head is at the standby position and while the bobbin is being re-

placed.

Change bobbin counter.

1. Press the COUNTER button i once. Screen 3 will then be displayed.

BOBBIN COUNTER 60

Screen 3

■ Replacing the lower thread

When the value for the lower thread counter becomes "0", the machine head automatically moves forward. After the bobbin is replaced and the reset operation is carried out, the value for the counter returns to the setting value.

NOTE:

If the BOBBIN CHANGE button is pressed manually, and the above operation is carried out, the lower thread counter will not return to the setting value. In addition, if the value is set to "0", the lower thread counter will not operate.

2. Use the arrow keys !8 to change the counter setting. Use the [ use the [

If the CANCEL button !5 is pressed, the lower thread counter will not be changed and the screen will return to the original display.

3. Press the ENTER button !6. The lower thread counter will be changed to the new setting, and the screen will return to the initial display.

] and [

] keys to select the column, and

] keys to change the digit.

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7. Settings before sewing

7-4. Setting the piece counter

¡ This setting can be made when the machine head is at the standby position and while the bobbin is being re-

placed.

¡ The piece counter can be set to "0" (reset), or it can be decremented by 1, It cannot be incremented.

Change piece counter.

PIECE COUNTER

Screen 4

1. Press the COUNTER button i twice. Screen 4 will then be displayed.

1234

2. Press the FAST button !3 to reset the piece counter to "0".

Press the arrow key !8 once to decrement the piece counter by 1.

* If the CANCEL button !5 is pressed, the piece counter

value will not be changed and the screen will return to the original display.

3. Press the ENTER button !6. The piece counter will be changed to the new setting, and the screen will return to the initial display.

7-5. Setting the stacker roller feed amount

¡ This setting can be made when the machine head is at the standby position and while the bobbin is being re-

placed.

Change stack feed length.

STACK FEED LENGTH

250 mm

Screen 5

1. Press the COUNTER button i three times. Screen 5 will then be displayed.

2. Press the arrow keys !8 to select the desired stacker roller feed amount.

The setting can be made in 9 steps from 0 mm to 400 mm, with each step being 50 mm.

3. Press the ENTER button !6. The stacker roller feed amount will be changed to the new setting, and the screen will return to the initial display.

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7. Settings before sewing

7-6. Setting the date and time

This setting can be made when the machine head is at the standby position and while the bobbin is being replaced.

Change date.

DATE 1998/10/1

Screen 6-1

1. Press the COUNTER button i four times. Screen 6-1 will then be displayed.

2. Press the [ month or day, and press the [

!8 to change the setting for the selected item.

* If the CANCEL button !5 is pressed, the date will not

be changed and the screen will return to the original display.

] and [

] arrow keys !8 to select the year,

] and [ ] arrow keys

Change time.

TIME 15:30:00

Screen 6-2

* If the COUNTER button i is pressed, the date will

not be changed and the screen will change to screen 6-2 for setting the time.

3. Press the ENTER button !6. The date will be changed to the new setting, and the screen will change to screen 6-2 for setting the time.

4. Press the [ or minutes, and press the [ to change the setting for the selected item.

* If the CANCEL button !5 or COUNTER button i is

pressed, the time will not be changed and the screen will return to the original display.

] and [

] arrow keys !8 to select the hour

] and [ ] arrow keys !88

5. Press the ENTER button !6. The time will be changed to the new setting, and the screen will return to the initial display. The seconds will be reset to "0" at the point where the

ENTER button !6 is pressed.

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8. Preparation for sewing

Press

FOLDER RESET SW

to start searching for home position.

Screen 7

1997/11/5 19:36:50 FOLDING MODE PROGRAM NUMBER SEWING SPEED rpm

Screen 8-1

1997/11/5 19:36:50 FOLDING MODE PIECE COUNTER BOBBIN COUNTER

1. Apply air pressure and turn on power switch. Screen 7 will then be displayed on the panel.

2. Press the FOLDER RESET button !9. The machine head will move to the home position and then stop in the standby condition.

3. Select the normal display screen. The screen displayed will change in the following order each time the arrow key !8 is pressed.

Screen 8-1→ screen 8-2→ ...

It will change in the following order each time the arrow key !8 is pressed.

Screen 8-5 → screen 8-4 → ...

Screen 8-2

1997/11/5 19:36:50 PROGRAM NUMBER PIECE COUNTER BOBBIN COUNTER

Screen 8-3

1997/11/5 19:36:50 SEWING SPEED rpm PIECE COUNTER BOBBIN COUNTER

Screen 8-4

1997/11/5 19:36:50 SEWING CLAMP NUMBER STACK FEED LENGTH mm

Screen 8-5

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8. Preparation for sewing

4. Insert a floppy disk.

Note:

Insert a floppy disk straight into the slot. The label side of the disk must face the front.

5. Press the FLOPPY button y. Screen 9 will then be displayed.

Read sewing data.

PROGRAM NUMBER _ _

Use the arrow keys !8 to select the same number as the work clamp assembly. Then use the [

arrow keys !8 to select the column, and use the [ and [

] arrow keys !8 to change the values.

] and [

Screen 9

Refer to page 35 for details on setting the work clamp assembly number.

6. Press the ENTER button !6. The sewing data which corresponds to the number specified will then be read from the floppy disk. * The sewing data will be backed up even when the power is turned off. The number for the backed-up sewing

data can be checked by viewing the program number on screen 8-1 or screen 8-3.

1997/11/5 19:36:50 PROGRAM NUMBER PIECE COUNTER BOBBIN COUNTER

Screen 8-3

NOTE:

If there is no backup data, the display will be blank.

7. Check that the THREAD MONITOR indicator o is illuminated. If it is switched off, press the THREAD MONITOR button o until the indicator is illuminated.

] ]

NOTE:

If the indicator is switched off, the machine head will not stop automatically if an upper thread breakage is detected during sewing.

8. If starting to sew with a new bobbin, set the lower thread counter by following the steps given on page 20.

9. Follow the steps given on page 21 to reset the piece counter to "0" if required.

10. Follow the steps given on page 18 to set the sewing speed if required.

11. If the STACKER indicator r is switched off, press the STACKER button r so that the indicator illuminates.

NOTE:

If the indicator is switched off, the workpieces will not be stacked after they have been sewn.

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9. Sewing

9-1. Sewing with the folder in automatic mode

1. Turn on the air pressure and then turn on the power switch. The following screen will be displayed on the panel.

Press

FOLDER RESET SW

to start searching for home position.

2. Press the FOLDER RESET button !9. The machine head will move to the home position and then

stop in the standby condition.

3. Set the folder mode to automatic mode.

NOTE:

Refer to page 18 for details on how to set the folder mode.

4. Press the STACKER button r so that the STACKER indicator is illuminated.

5. Place the workpiece w under the gauge assembly q. (*1)

6. Depress the foot switch @3. The vacuum system will start operating to hold the workpiece w in place.

NOTE:

If the foot switch @3 is depressed once more, the vacuum system will turn off while the foot switch @3 is being depressed, allowing the workpiece to be positioned more easily.

7. Place the pocket material e on top of the gauge assembly q.

8. Press the RESTART buttones @4 simultaneously. The pocket material e will be folded by the folder and the workpiece w and the pocket material e will then be moved to the machine head and sewing will start. (*2)

9. Once sewing is finished, the stacker will operate and the workpiece w will be stacked. The machine head and the work clamp will then return to the standby positions.

*1 If DIP switch D-1 has been set to ON, the gauge assembly q will retract. The gauge assembly q moves

forward at the same time the vacuum system starts operating when the foot switch @3 is depressed.

*2 If DIP switch A-1 has been set to ON, operation stops momentarily after folding has been completed so that

the folding can be checked. When the RESTART buttones @4 are pressed again simultaneously, operation continues as before.

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9-2. Sewing with the folder in pattern matching mode

9. Sewing

1. Turn on the air pressure and then turn on the power switch. The following screen will be displayed on the panel.

Press

FOLDER RESET SW

to start searching for home position.

2. Press the FOLDER RESET button !9. The machine head will move to the home position and then stop in the standby

condition.

3. Set the folder mode to pattern matching mode.

NOTE:

Refer to page 18 for details on how to set the folder mode.

4. Press the STACKER button r so that the STACKER indicator is illuminated.

5. Place the workpiece w under the gauge assembly q. (*1)

6. Depress the foot switch @3. The vacuum system will start operating to hold the workpiece w in place.

7. Place the pocket material e on top of the gauge assembly q.

8. When the foot switch @3 is released from being depressed, the gauge assembly q will drop to its lowest position. If the pattern on the pocket material e is not aligned with the pattern on the workpiece w at this time, depress the foot switch @3 once more. The vacuum system will turn off and the gauge assembly q will move one step upward so that the patterns can be matched.

9. Press the RESTART buttones @4 simultaneously. The pocket material e will be folded by the folder and the workpiece w and the pocket material e will then be moved to the machine head and sewing will start. (*2)

10. Once sewing is finished, the stacker will operate and the workpiece w will be stacked. The machine head and the work clamp will then return to the standby positions.

*1 If DIP switch D-1 has been set to ON, the gauge assembly q will retract. The gauge assembly q moves

forward at the same time the vacuum system starts operating when the foot switch @3 is depressed.

*2 If DIP switch A-1 has been set to ON, operation stops momentarily after folding has been completed so that

the folding can be checked. When the RESTART buttones @4 are pressed again simultaneously, operation continues as before.

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9. Sewing

9-3. Sewing with the folder in label attachment mode

¡ Two types of label attachment mode can be used: when DIP switch D-2 is set to OFF, alternate label attachment

is carried out, and when DIP switch D-2 is set to ON, continuous label attachment is carried out.

¡ With alternate label attachment, the folder switches alternately between label attachment mode and automatic

mode once for each sewing operation. During label attachment mode, the LABEL indicator e illuminates. If you would like to switch over the modes, press the LABEL button e.

¡ With continuous label attachment, label attachment mode is active all the time. (The LABEL indicator e will re-

main illuminated.)

1. Set the folder mode to label attachment mode.

NOTE:

Refer to page 18 for details on how to set the folder mode.

2. Press the STACKER button r so that the STACKER indicator is illuminated.

3. Place the workpiece t under the gauge assembly q. (*1)

4. Depress the foot switch @3. The vacuum system will start operating to hold the workpiece t in place.

5. Place the pocket material y on top of the gauge assembly q.

6. Depress the foot switch @3, and hold it in that condition. The intermediate work clamp u will be set down on top of the gauge assembly q and label setting will be possible. Place the label i into the clamp o of the label attacher. After setting the label i in place, release the foot switch @3. The clamp o of the label attacher will clamp the label i and then rotate to the folding position. If you would like to reclamp the label i, depress the foot switch @3 once more and keep it depressed. The label can then be reset.

7. Press the RESTART buttones @4 simultaneously. The pocket material y will be folded by the folder and the workpiece t and the pocket material y will then be moved to the machine head and sewing will start. (*2)

8. Once sewing is finished, the stacker will operate and the workpiece w will be stacked. The machine head and the work clamp will then return to the standby positions. * If the LABEL indicator e is switched off, it means that automatic mode is active.

*1 If DIP switch D-1 has been set to ON, the gauge assembly q will retract. The gauge assembly q moves

forward at the same time the vacuum system starts operating when the foot switch @3 is depressed.

*2 If DIP switch A-1 has been set to ON, operation stops momentarily after folding has been completed so that

the folding can be checked. When the RESTART buttones @4 are pressed again simultaneously, operation continues as before.

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9. Sewing

9-4. Sewing with the folder in step mode

¡ In step mode, the folder operates in a step-by-step manner, so that checking can be carried out during folding. ¡ If he LABEL indicator e is switched off, automatic mode is followed during step mode operation. If the LABEL

indicator e is illuminated, label attachment mode is followed.

NOTE:

Selecting the mode to be followed is carried out by using the LABEL button e.

Press

FOLDER RESET SW

to start searching for home position.

1. Turn on the air pressure and then turn on the power switch.

The screen shown at left will be displayed on the panel.

2. Press the FOLDER RESET button !9. The machine head will move to the home position and then stop in the standby condition.

3. Set the folder to step mode.

NOTE:

Refer to page 18 for details on how to set the folder mode.

4. Press the STACKER button r so that the STACKER indicator is illuminated.

5. Place the workpiece q under the gauge assembly q. (*1)

6. Depress the foot switch @3. The vacuum system will start operating to hold the workpiece q in place.

7. Place the pocket material e on top of the gauge assembly w.

8. The folder operates one step at a time each time the STEP button t is pressed.

9. If you continue to press the STEP button t after folding has been completed, the work clamp assembly will move to the folder side and operation will continue from transporting to sewing.

NOTE:

At any point up until the folder is released, the folder can be moved in reverse by depressing and holding the foot switch @3 while pressing the STEP button t.

*1 If DIP switch D-1 has been set to ON, the gauge assembly w will retract. The gauge assembly w moves

forward at the same time the vacuum system starts operating when the foot switch @3 is depressed.

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9. Sewing

9-5. Test feeding

Test feeding should always be carried out a new program is created or when changes are made to existing data.

NOTE:

Check that the needle does not touch the work clamp.

1. Carry out the sewing preparation as far as step 6.

2. Press the TEST button !2 and check that the TEST indicator is illuminated.

3. Operate the folder in the same way as for normal sewing. The folder can be set to any mode.

4. After folding is complete, the work clamp assembly will transport the workpiece to the machine head, and feeding will then continue stitch by stitch according to the program contents without the machine head motor operating. If the FAST button !3 is pressed during feeding, the feeding speed will become faster for as long as the FEED button !3 is being pressed.

5. If the TEST button !2 is pressed during the above feeding operation, feeding will stop and the TEST indicator !2 will switch off.

At this time:

¡ If the TEST button !2 is pressed once more, the TEST indicator !2 will illuminate and feeding will start again. ¡ If the STEP BACK button !0 is pressed, the feeding will be carried out in reverse for as long as the STEP BACK

button !0 is being pressed. If it is pressed together with the FAST button !3, the feeding speed will become faster.

¡ If the RESTART buttones @0 are pressed without pressing the TEST button !2, sewing will start from the current

stopping position.

6. Once feeding is complete, the machine head and the work clamp will then return to the standby positions.

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9. Sewing

9-6. Emergency stop

To stop the machine during sewing

If you would like to stop the machine head during sewing, press the EMERGENCY STOP button @2. The machine head will stop and the error message "E-801" will appear on the panel screen. If the RESET button @1 is then pressed, the thread will be trimmed and the screen will return to the normal display.

To continue sewing

1. Press the STEP BACK button !0 to return to the place from where you would like sewing to resume.

2. Press the RESTART buttones @0 to start sewing again.

To interrupt sewing and return to the standby position

1. Press the EMERGENCY STOP button @2 during sewing to stop the sewing machine. Then press the RESET switch @1 so that a normal screen is displayed, and press the EMERGENCY STOP button @2 once more. The error message “E-801” will appear on the panel display. Press the EMERGENCY STOP button @2 once more. The error message "E801" will appear on the panel display.

2. Press the RESET button @1. Screen 7 (Refer to page 23) will be displayed.

3. Press the FOLDER RESET button !9. The machine head will return to the home position and stop in standby mode.

If a thread breakage occurs during sewing

If the thread breaks during sewing, the machine head wills top and error message "E-520" will appear on the panel display. When the RESET button @1 is pressed, thread trimming will be carried out, and the screen will return to the normal

display.

1. Thread the upper thread and move the thread take-up lever to its highest position.

2. Press the STEP BACK button !0 to return to the place from where you would like sewing to resume.

3. Press the RESTART buttones @0 to start sewing again.

BAS-761

10. Adjustments

CAUTION

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

Note:

¡ Turn the power switch off if the adjustment does not need power to be supplied. ¡ If the power switch is turned on, take sufficient safety measures, such as to make E-800 (emergency stop) come

on in the manual mode.

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.

10-1. Needle-bar height adjustment

BAS761

2.4

Gauge 1 (x2.4 rotary hook)

When needle-bar q is at its lowest position, the lower end of needle-bar q must be matched the end of gauge 1.

1. Remove flat-head screws w and then needle plate RR e and needle plate RL r.

2. Loosen the screw t and then remove the needle y.

3. Remove screw u and then presser foot assembly i.

4. Remove screws o and then bottom-plunger !0.

5. Remove oil cap !1 and screw !2, adjust the height by moving needle-bar q up and down.

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10-2. Needle and rotary hook timing

■ x1.7 rotary hook

10. Adjustments

• for x1.7 rotary hook 1.8mm

• for x2.4 rotary hook 2.4mm

Gauge

1.7

BAS761

• for x1.7 rotary hook 1.8mm

• for x2.4 rotary hook 1.2mm

0 – 0.05mm

¡ After needle-bar q is raised from its lowest position, rotary hook point w must be aligned with the center of needle

e when the lower end of needle-bar q is matched the end of gauge 2.

¡ If rotary hook point w is not aligned with the center of needle e, loosen screws r and align the center of needle e

with rotary hook point w.

¡ Timing gauge

If there is a recess at the right edge of the bed, use gauge A; if there is none, use gauge B.

Recess

BAS761

1.7

x1.7 rotary hook

(S52232-000)

A With recess

BAS761

2.4

2.4 2

S54742000

x2.4 rotary hook

(S54742-000)

B Without recess

MP1.2

x2.4 rotary hook

(S51288-000)

10-3. Presser foot height adjustment

e w

The standard presser foot height is 16.5 mm (for x2.4 rotary hook) or 14.5mm (for x1.7 rotary hook) above the needle plate when the presser foot q is raised.

37mm

for x2.4 rotary hook 16.5mm for x1.7 rotary hook 14.5mm

1. Loosen nut w and then pressure adjusting screw e.

2. Press the FOOT button to raise working presser foot q.

3. Remove face-plate oil cap r and loosen screw t. Adjust the height by moving presser bar y.

The standard spring tension for the sewing clamp spring is obtained when the height of the presser foot adjustment screw is 37 mm.

Check that the point of the needle does not protrude below the presser foot when the needle is at its highest position.

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10. Adjustments

10-4. Removal of the fixed knife and the movable knife

Note:

Turn off the power switch.

■ Removal of the fixed knife

Notch

Belows rail

1. Remove flat-head screws q and then needle plate RR w and needle plate RL e.

2. Remove clamping screws r and then tilt the machine head.

NOTE:

At this time, adjust the position of the machine head so that it is aligned with the notch in the bellows rail.

3. Remove clamping bolt t and then bobbin case holder position bracket y.

4. Remove flat-head screw u and then fixed knife i.

¡ When the fixed knife i becomes blunt, sharpen it as illustrated at right.

■ Removal of the movable knife

r e

1. Remove flat-head screws q and then needle plate RR w.

2. Remove clamping screw e and then presser foot assembly r.

3. Turn the pulley and stop the needle bar at its highest position.

4. Remove screw t and then needle y.

5. Push thread trimming rod t in the arrowed direction and stop where flat-head screws y can be seen.

6. Remove flat-head screws y and then movable knife u.

Note:

To reassemble, reverse the above procedures.

BAS-761

10-5. Stacker position adjustment

10. Adjustments

1. Loosen the four bolts w and adjust the height of the stacker base q so that the workpieces stack neatly onto the stacker base q.

2. Loosen the two bolts e, and then adjust the vertical position of the stacker base q so that the workpieces stack neatly onto the stacker base q.

3. Loosen the bolt r and adjust the height of the inner work clamp bart.

4. Loosen the bolt y and adjust the height of the outer work clamp baru.

BAS-761

10. Adjustments

10-6. Sewing clamp assembly number selection

Clamping screw 3 ⳯ 5

Spring washer

Slit D

Slit C

Sewing clamp assembly

¡ Attach slit C and Slit D to the sewing clamp assembly by a clamping screw and a spring washer.

See the table below for the sewing clamp assembly numbers.

■ Sewing clamp assembly number

NOTE:

¡ For retractable clamps, set jumpers 0 to 31. ¡ For single clamps, set jumpers 32 to 63.

01234567891011

™™ ™™ ™™ ™™ ¡¡ ¡¡ ¡¡ ¡¡ ™™ ™™ ™™ ™™

™™ ™™ ¡¡ ¡¡ ™™ ™™ ¡¡ ¡¡ ™™ ™™ ¡¡ ¡¡

™™ ¡¡ ™™ ¡¡ ™™ ¡¡ ™™ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

12 13 14 15 16 17 18 19 20 21 22 23

¡¡ ¡¡ ¡¡ ¡¡ ™™ ™™ ™™ ™™ ¡¡ ¡¡ ¡¡ ¡¡

™™ ™™ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

¡¡ ¡¡ ¡¡ ¡¡ ™™ ¡¡ ™™ ¡¡ ¡™ ¡¡ ™™ ¡¡

24 25 26 27 28 29 30 31

™™ ™™ ™™ ™™ ¡¡ ¡¡ ¡¡ ¡¡

¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

32 33 34 35 36 37 38 39 40 41 42 43

¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

™™ ™™ ¡¡ ¡¡ ™™ ™™ ¡¡ ¡¡ ™™ ™™ ¡¡ ¡¡

™™ ¡¡ ™™ ¡¡ ™™ ¡¡ ™™ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

44 45 46 47 48 49 50 51 52 53 54 55

¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

™™ ™™ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

¡¡ ¡¡ ¡¡ ¡¡ ™™ ¡¡ ™™ ¡¡ ™™ ¡¡ ™™ ¡¡

56 57 58 59 60 61 62 63

¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡ ¡¡

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11. Using the DIP switches

DANGER

Note:

¡ Always be sure to turn the power OFF when changing the settings of the DIP switches. ¡ The functions of the DIP switches are subject to changes without notification. ¡ If DIP switches B-1 to B-6 are ON, be sure to check the cylinder movement and data version thoroughly. In some

cases a peculiar error may be displayed.

■ DIP switch positions

DIP switch D

DIP switch A

DIP switch B DIP switch C

DIP switch E

■ Functions of operation panel DIP switches

¡ DIP switch A

No.

2 3 4 5 6 7 8

■ Functions of DIP switches on main circuit board

¡ DIP switch B

No.

1 2 3 4 5 6 7 8

In automatic, pattern matching and label attachment modes, the work clamp stops momentarily before feeding to the home position.

Low feeding speed (Machine head → Folder) Low feeding speed (Folder → Machine head)

Not available (Should be set to OFF) Not available (Should be set to OFF)

Not available (Should be set to OFF) After the power is turned on, three pockets are sewn at 3,000 rpm. Machine head operation check, stacker operation check

Mismatches between folder numbers and program numbers are ignored Clamp vertical sensor is ignored Needle racking cylinder sensor is ignored Double cylinder sensor is ignored 24 V/36 V power supply voltage check is ignored Single and double clamp data check is ignored

Not available (Should be set to OFF)

Functions when ON

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11. Using the DIP switches

¡ DIP switch C

No.

3 4

7 stitches counted before upper thread breakage is detected

After sewing, the work clamp and machine head return to the previous standby position, even if folding has been completed.

Movement to the feed destination occurs immediately when the program data requires it.

After sewing, the timer starts 0.2 seconds after the work clamp is raised. 5 6 7 8

¡ DIP switch D

No.

1 2 3 4 5

The gauge standby position is always forward. When OFF: The gauge standby position is at the back. Continuous label attachment mode When OFF: Alternate label attachment mode Folder operates at low speed Folder procedure changes

Folding is released when base 1.5 is raised 6 7 8

Functions when ON

OFF: 3 stitches counted before upper thread breakage is detected

Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF)

Functions when ON

Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF)

¡ DIP switch E

No.

1 2 3 4 5 6 7 8

Functions when ON Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF) Not available (Should be set to OFF)

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12. Table of error code

¡ If an error occurs which cannot be reset, turn off the power momentarily and eliminate the cause of the problem. ¡ If an error occurs which can be reset, eliminate the cause of the problem and then press the RESET button.

Error code

E – 500 E – 501 E – 502 E – 503 E – 504 E – 505 E – 510 E – 511 E – 512 E – 513 E – 520 E – 530

E – 535

E – 536

E – 540 E – 550 E – 560 E – 570 E – 580 E – 600 E – 700 E – 701 E – 710 E – 711 E – 720 E – 730 E – 740 E – 750 E – 780 E – 781

Contents Abnormal rise in 24 V power supply voltage (exceeds +20% of rating) Abnormal drop in 24 V power supply voltage (exceeds -20% of rating) Abnormal rise in 36 V power supply voltage (exceeds +20% of rating) Abnormal drop in 36 V power supply voltage (exceeds -20% of rating) Abnormal rise in primary voltage (exceeds +20% of rating) Abnormal drop in primary voltage (exceeds -20% of rating) Needle bar is not at its highest position at the start of positioning. Needle bar is not at its highest position at the start of sewing. Needle bar is not at its highest position during test feeding. Needle bar is not at its highest position during programming. Upper thread breakage error Model and sewing program number do not match. Retractable are for double (0 to 31) but data does not contain a double switching

command. Model numbers are for single (32 to 63) but data does not contain a single

switching command. Machine head synchronization sensor error or machine head motor error Needle up stop error Presser foot cylinder malfunction or sensor malfunction Double sensor error Needle racking cylinder malfunction or sensor malfunction Machine started with no sewing data Error occurred when reading from floppy disk Error occurred when writing to floppy disk No sewing data for number specified Data writing carried out with no sewing data No disk in floppy disk drive Floppy disk is write-protected Insufficient free space on floppy disk Floppy disk cannot be formatted. Sewing data exceeds sewing area No end code in sewing data

Reset

No No No No No

No Yes Yes Yes Yes Yes Yes

Yes

No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

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12. Table of error code

Error code

E – 800 E – 801 E – 802 E – 803 E – 810 E – 820 E – 821 E – 830 E – 840 E – 850 E – 860 E – 870 E – 880 E – 890 E – 900 E – 901 E – 902 E – 903 E – 910 E – 920 E – 960 E – 970

Contents EMERGENCY STOP button pressed EMERGENCY STOP button pressed during sewing EMERGENCY STOP button pressed during programming EMERGENCY STOP button pressed during programming EMERGENCY STOP button is not connected No air, or air chuck is turned off No air, or air chuck is turned off X right overtravel switch activated X left overtravel switch activated Y up overtravel switch activated Y down overtravel switch activated X motor problem Y motor problem Machine head motor problem ∗ Outer work clamp cylinder malfunction or sensor malfunction Inner work clamp cylinder malfunction or sensor malfunction Gauge forward/back cylinder malfunction or sensor malfunction Base 10 cylinder malfunction or sensor malfunction X axis positioning error Y axis positioning error Clamp-in sensor malfunction Clamp malfunction

Reset

Yes Yes

Yes

No No No No No No No No No No No No No No No No

* If the primary-side voltage is lower than the rated level at low temperatures, the error message “E-890” may appear

at the sewing start. If this happens, set DIP switch A-7 to ON.

BAS-761

INSTRUCTION MANUAL

BROTHER INDUSTRIES, LTD.

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

Printed in Japan

151-761

S93761-102

2000.09. B (1)

Brother BAS-761 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

CONTENTS

1. Names of Machine Components

2. Specifications

3. Installation

3-1. Installation of the machine table

3-2.Removal of the fixing bolts from the machine

3-3. Installation of the spool stand

3-4. Connection of the foot-switch connector

3-5. Connection of the air hose

3-6. Positioning of the front supporter

3-7. Installation positions for operation box and switch box

3-8. Installation of the folding group assembly

4. Lubrication

5. Correct operation

5-1. Installing the needle

5-2. Upper threading

5-3. Bobbin case threading

5-4. Bobbin thread winding

5-5. Thread tension

6. Button functions

6-1. Operation box panel buttones

6-2. Switch box panel buttones

6-3. Foot switch

6-4. RESTART buttones

7. Settings before sewing

7-1. Setting the folder mode

7-2. Setting the sewing speed and the bar tacking speed

7-3. Setting the lower thread counter

7-4. Setting the piece counter

7-5. Setting the stacker roller feed amount

7-6. Setting the date and time

8. Preparation for sewing

9. Sewing

9-1. Sewing with the folder in automatic mode

9-2. Sewing with the folder in pattern matching mode

9-3. Sewing with the folder in label attachment mode

9-4. Sewing with the folder in step mode

9-5. Test feeding

9-6. Emergency stop

10. Adjustments

10-1. Needle-bar height adjustment

10-2. Needle and rotary hook timing

10-3. Presser foot height adjustment

10-4. Removal of the fixed knife and the movable knife

10-5. Stacker position adjustment

10-6. Sewing clamp assembly number selection

11. Using the DIP switches

12. Table of error code