Brother BES 941BC, BES 1241BC embroidery machine Instruction manual

BES-941 BC

BES-1241 BC

INSTRUCTION MANUAL

Please read this manual before using the machine.

Please keep this manual within easy reach for quick reference.

NINE NEEDLE FOUR HEAD EMBROIDERY MACHINE

TWELVE NEEDLE FOUR HEAD EMBROIDERY MACHINE

Precautions

• Unauthorized commercial or industrial use of trademarks or copyrighted materials (such as paintings, drawings, photos, logos, etc.) owned by other companies or persons is illegal. The use of such materials without the permission of their owners may result in criminal or civil liability.

• This manual may be subsequently modified without prior notice.

• Brother Industries, Ltd. shall assume no responsibility for any consequences of using this 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 these parts. Follow the instructions from training personnel and instructors regarding safe and correct operation before operating the machine so that you will know how to use it correctly.

SAFETY INSTRUCTIONS

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 almost certainly result in death or severe injury.

CAUTION

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.

Symbols

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

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

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

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

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

(For example, the symbol at left means "you must make the ground connection".)

BES-941BC • BES-1241BC 1

2

2 Notes on safety

DANGER

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

CAUTION

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as high-frequency welders.

Sources of strong electrical noise may cause problems with correct operation.

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 air supply should have a capacity greater than the machine consumption. If air is not supplied sufficiently, a machine malfunction may occur.

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.

Do not use this machine outdoors.

Installation

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

Never operate the sewing machine with any ventilation openings blocked.

Keep the ventilation openings of the sewing machine free from the accumulation of lint or dust.

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

The sewing machine weighs more than 600 kg.

The installation should be carried out by four 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 a high risk of receiving a serious electric shock, and problems with correct operation may also occur.

When securing the cords, do not bend the cords excessively or fasten them too hard with staples, otherwise there is the danger that fire or electric shocks could occur.

Be sure to wear protective goggles and gloves when handling the lubricating oil or grease, so that no oil or grease gets into your eyes or onto your skin, otherwise inflammation can result.

Furthermore, do not drink the oil or grease under any circumstances, as they can cause vomiting and diarrhoea.

Keep the oil out of the reach of children.

BES-941BC • BES-1241BC

Installation

Avoid setting up the sewing machine near sources of strong electrical noise such as highfrequency welding equipment.

If this precaution is not taken, incorrect machine operation may result.

Secure the machine with the casters when installing it so that it will not move by placing the leveling seat on the sound floor.

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

Keep children away from the sewing machine.

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.

Always use the proper needle plate. Any wrong plate can cause needles to break.

Do not use a bent needle.

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 threading the needle

• When replacing the bobbin and needle

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

• When cleaning the machine.

Do not get on the table.

Table may be damaged.

Do not operate this machine where aerosol

(spray) products are being used or where oxygen is being administered.


CAUTION

Sewing

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 moving parts, press any objects against the machine, or pull/push the cloth during sewing. Doing so may result in personal injury, machine damage, or needle breakage.

Do not touch the pulse motor and sewing machine bed section during operation or for 30 minutes after operation. Otherwise burns may result.

Never drop or insert foreign objects or a screwdriver into the ventilation openings or the machine inside.

Touching any high-voltage area may result in an electric shock.

Never damage, alter, heat, or put a strain on the power cable as well as other cables. Doing so may result in a fire or an electric shock.

If the controller is exposed to water or a chemical agent or if its entry is found inside the controller, turn off the power switch immediately.

Continuing to use the machine under such a condition may result in a fire or an electric shock.

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.

BES-941BC • BES-1241BC 3

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 cable (do not pull on the cable itself) from the wall outlet before attempting to perform the following operations. Otherwise, the machine is started if the start switch is pressed by mistake. Injury may occur in such a case.

• When carrying out inspection, adjustment, or maintenance

• When replacing consumable parts such as a rotary hook, a knife, or a lamp

If the power switch needs 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.

When replacing a lamp, use the same-type lamp having a rating of 40 watts. Wait until the lamp cools off before replacement. Failure to do so can result in burns.

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.

4 BES-941BC • BES-1241BC

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.

1 Safety devices: Finger guard, Belt cover, etc.

CAUTION

Moving parts may cause injury.

Operate with safety devices.

turn off main switch before changing needle, cleaning etc.

2

DANGER GEFAHR

Hazardous voltage will cause injury,

Turn off main switch and unplug power cord before opening this cover.

Hochspannung verletzungsgefahr!

DANGER

Un voltage non adapté provoque des blessures.

PELIGRO

Un voltaje inadecuado puede provocar las heridas.

Vor Öffnen des

Gehäuses

Hauptschalter ausschalten und

Netzstecker ziehen!

Pour ouvrir cette plaque, couper le contact general de la machine et debrancher le cable d’alimentation.

Antes de abrir esta tapa, desconecte la máquina y desenchufela de la red.

3

4

6

CAUTION ACHTUNG ATTENTION

Table may be damaged.

Der Tisch kann beschädigt werden.

Do not get on the table.

Nicht auf den

Tisch stehen.

Vous risquez d’endommager la table.

No montez pas sur la table.

ATENCION

La mesa se puede dañar.

No pise la mesa.

Never touch or push the thread take up during operation as it may result in injuries machine.

Direction of operation

5 Never touch or push the needle bar during operation as it may result in injuries or damage to the sewing machine.

7

CAUTION

Do not touch this part during activitation or for 30 minutes after shut-off. Otherwise burns may result.

BES-941BC • BES-1241BC 5

6 3

Belt cover

Finger guard

3

5

7

4

2

BES-941BC

7

1

6

1


2

Before Starting Operation

Do not force open the shutter for direct contact with the magnetic area.

Do not bring disks near magnetic m a t t e r s s u c h a s m a g n e t i c screwdriver or the back side of the programmer.

Do not store floppy disks in an extremely high or low ambient temperature.

Do not use floppy disks under high humidity.

Do not use or store floppy disks in a dusty place.

Do not place it on cloth.

Do not store floppy disks under direct sunlight.

Do not bend the disk. Do not put things on the disk.

Avoid contact with solvent or drink.

Store it in the case immediately after using it to protect it from dust and damage.

Use a commercially available cleaning disk to clean the head of the floppy disk drive periodically.

Do not remove the disk out of the drive during the access lamp is lit.

BES-941BC • BES-1241BC 7

Protecting data in floppy disks

Write-protection is available for a floppy disk to prevent undesired data deletion.

A write-protected disk is read-only. It is recommended to provide write-protection for disks which contain important data.

To do so, slide the write-protect notch to open the slot as shown below.

Slide the notch in this direction to prevent data loss or overwriting.

Slide the notch in this direction to write data.


Procedure of Reading This Manual

Explanation of models

This manual explains two models:

- BES-941BC (9 needles)

- BES-1241BC (12 needles)

Explanation for individual model is provided by identifying the model name. Check the model before using the machine. The display is BES-941BC.

Configuration of this manual

This manual consists of the following chapters:

Chapter 1 Preparation of Embroidery Machine

This Chapter describes the specifications, installation and preparatory procedures of starting up the machine.

Chapter 2 Embroidering Procedures

Provides explanations on the operation panel and briefly reviews the flow of embroidering processes.

Chapter 3 Selection of Data and Embroidering

This Chapter describes procedures of reading sewing data and sewing.

Chapter 4 Editing of Embroidering Data

Explains how to edit the embroidery data.

Chapter 5 Setting

This Chapter describes procedures of setting the machine and working environment.

Chapter 6 Operation of Machine

Provides information on machine operation during embroidering.

Chapter 7 Maintenance

Describes appropriate maintenance of the machine.

Chapter 8 Adjustment

Explains how to adjust the needles.

BES-941BC • BES-1241BC 9

Chapter 9 List of Error Messages

Provides information on error codes and action to be taken.

Chapter 10 Troubleshooting

Provides troubleshooting for the machine.

Connection and Installation of Optional Equipment

Describes connections between the machine/computer and optional equipment available.


BES-941BC • BES-1241BC 11

Screen Composition

Initial Screen

Starting Sewing

Operation ( page 74)

S T O P

Canceling of Sewing

Thread trimming

Selection of Embroidery data

( page 63)

Setting of Needle Bars

( page 94)

Hoop Retract

Area Check Editing of Embroidery data

( page 79)


Setting of thread breakage sensor ( page 95)

Setting of Machine ( page 98)

BES-941BC • BES-1241BC 13

Contents

SAFTY INSTRUCTIONS ............................................................................... 1

Before Starting Operation .......................................................................... 7

Procedure of Reading This Manual ........................................................... 9

Screen Composition ................................................................................. 12


1.

Specifications ..................................................................................... 20

2.

Names of Machine Components ....................................................... 21

3.

Installation ........................................................................................... 23

3-1 Transportation of Machine ..................................................................... 23

3-2 Installation of Machine ........................................................................... 25

3-3 Preparation of Needle Bar Case ............................................................ 26

3-4 Mounting of Table .................................................................................. 28

3-5 Mounting of Cotton Stand ...................................................................... 32

3-6 Lubrication to Needle Bar Case ............................................................. 34

3-7 Grounding .............................................................................................. 35

4.

Preparation for Embroidering ............................................................ 36

4-1 Upper Threading .................................................................................... 36

4-2 Replacement of Bobbin ......................................................................... 39

4-3 Replacing and Selecting Needle ............................................................ 40

4-4 Attachment of Embroidery Hoop and Frame ......................................... 41

4-5 Flat Frame Every Other Head Operation ............................................... 47

4-6 Adjustment of Thread Tension ............................................................... 48


Functions of Operation Panel .................................................................. 52

Operation Panel ................................................................................................ 52

Switches at Machine Heads .............................................................................. 55

Switches on Tension Plate ................................................................................ 55

Flowchart of Preparation for Embroidering ............................................ 57

Turn on the Machine Power .............................................................................. 58

Retrieve the Embroidery Data ........................................................................... 59

Start Embroidering ............................................................................................ 59


What Can the Machine Do? ...................................................................... 62

Selection of Data ....................................................................................... 63

Registration of Embroidery Data from Floppy Disk ........................................... 63

Reading from Memory ....................................................................................... 66

Registration of Embroidery Data from BE-100 .................................................. 67

Deletion of Embroidery Data from Machine Memory ........................................ 68

BES-941BC • BES-1241BC 14

Modification of Embroidery Data Name .................................................. 70

Sewing Operation ...................................................................................... 74

Before Starting Sewing ..................................................................................... 74

Starting Sewing Operation ................................................................................ 74

Feedhold and Cancellation of Sewing ............................................................... 75

Step Forward and Step-Back ................................................................... 76

Step Forward/Step-Back Mode ......................................................................... 76

Setting Amount or Timing of Step Forward/Step-Back ..................................... 76

For Step Forward (Back) ................................................................................... 77

Resuming Sewing ............................................................................................. 77

Writing the embroidering data ................................................................. 78



Rotation ...................................................................................................... 81

Enlargement and Reduction ..................................................................... 82

Mirror .......................................................................................................... 84

Repetition ................................................................................................... 86

Other Editing.............................................................................................. 88



Setting of Needle Bars .............................................................................. 94

Thread Breakage Sensor .......................................................................... 95

Setting of sensor validity/invalidity .................................................................... 95

Thread Breakage Sensitivity ............................................................................. 95

Automatic Step-Back ......................................................................................... 96

Setting of Lower Thread Counter/Stitch Counter .............................................. 97

Setting of Machine .................................................................................... 98

Embroidery Hoop .............................................................................................. 98

Speed Range .................................................................................................... 99

Speed of Each Speed Range .......................................................................... 100

Setting of Mending .......................................................................................... 101

Thread Trimming Length ................................................................................. 103

Thread Withdrawal Feed Length ..................................................................... 103

Inching ............................................................................................................. 104

Sewing Area .................................................................................................... 105

Registration of Sewing Start Position .............................................................. 106

Hoop Retract Point .......................................................................................... 106

Hoop Automatic Retract .................................................................................. 107

Movement to Registered Sewing Start Point .................................................. 107

BES-941BC • BES-1241BC 15

16

Setting of Environment ........................................................................... 108

Return to Start Point ........................................................................................ 108

Speed Range .................................................................................................. 108

Checking the Embroidery Area ....................................................................... 109

Power Voltage ................................................................................................. 110

Setting of RS-232C Communication Speed .................................................... 110

Display Language ........................................................................................... 111

Alarm Sound ................................................................................................... 112

Motive Speed .................................................................................................. 113

Small-Pitch Deletion ........................................................................................ 114

Release B1 error ............................................................................................. 115

Boring ............................................................................................................. 116

Lock Stitch ....................................................................................................... 117

Speed Limit in a Short Pitch ............................................................................ 120

Feed Timing .................................................................................................... 121

Automatic Input Setting ................................................................................... 122

Display of Information ............................................................................ 125

Pattern Information .......................................................................................... 125

Features of Machine ....................................................................................... 126

Information about Versions ............................................................................. 127


1.

Operating Procedures ...................................................................... 130

1-1 Power Source ...................................................................................... 130

1-2 Preparation for Embroidering ............................................................... 130

2.

Machine Stop .................................................................................... 131

2-1.

Stopping the Machine .......................................................................... 131

2-2.

Resetting Machine Stop ....................................................................... 131

2-3.

Emergency Stop of the Machine .......................................................... 131

2-4.

Resetting Emergency Stop .................................................................. 131

3.

Measures against Thread Breakage ............................................... 132

3-1 Remedies ............................................................................................. 132

3-2 Mending ............................................................................................... 133

4.

Jog Embroidering ............................................................................. 135

5.

Hoop Feed Position .......................................................................... 135

6.

Area Check ........................................................................................ 136

6-1 External Tracing ................................................................................... 136

6-2 Automatic Hoop Movement in Area ..................................................... 136

7.

Jog Switches ..................................................................................... 137

7-1 Hoop Movement to Start Position ........................................................ 137

7-2 Inching Mode during Embroidering (Forcible Hoop Movement) .......... 138

8.

Detection of Zero Point .................................................................... 139



1.

Cleaning ............................................................................................. 142

1-1 Cleaning and Lubrication of Rotary Hook ............................................ 142

1-2 Cleaning of Needle Plate ..................................................................... 143

1-3 Cleaning of Lower Shaft Module Fan .................................................. 143

2.

Oiling .................................................................................................. 144

2-1 Head .................................................................................................... 144

3. Greasing ............................................................................................... 146

3-1 Head .................................................................................................... 146

3-2 Feed Guide Section ............................................................................. 150

Chapter 8 Standard Adjustment

1.

Adjusting Needle Bar Height ........................................................... 152

2.

Replacing (Attaching) Rotary Hook ................................................ 156

2-1.

Replacing Rotary Hook ........................................................................ 156

2-2.

Adjusting the clearance between the rotary hook and the inner rotary 156

3.

Adjustment of Clearance Between Needle and Rotary Hook ....... 157

4.

Adjustment of Timing Between Needle and Rotary Hook ............ 158

5.

Adjustment of Presser Foot Height ................................................ 159

6.

Adjustment of Thread Trimmer ....................................................... 160

6-1 Attaching the Fixed Knife ..................................................................... 160

6-2 Checking the Movable Knife Position .................................................. 160

7.

Adjusting the Belt Tension .............................................................. 162

8.

Thread Wiper Adjustment ................................................................ 163

Chapter 9 Error code list


Mechanical Section ................................................................................. 172

Electrical Section .................................................................................... 174

BES-941BC • BES-1241BC 17


Attaching Bobbin Winder ....................................................................... 184

Installing the fluorescent lamp (For BES-941BC only) ........................ 186

Installing the fluorescent lamp plates .............................................................. 186

Installing the fluorescent lamp and the reflector cap ....................................... 186

Installing the rubber cushions ......................................................................... 187

Installing the fluorescent lamp ......................................................................... 187

Removing the rear covers ............................................................................... 188

Installing the fluorescent lamp cable ............................................................... 188

Removing the cover LE ................................................................................... 189

Clamping the fluorenscent lamp cable ............................................................ 189

Installing the fluorescent lamp switch .............................................................. 190


Chapter 1

Preparation of Embroidery Machine


1. Specifications

Embroidery machine used

Application

Sewing speed

Maximum feed range

Sewing area

Feed system

Stitch length

Storage medium

Thread trimming

Needle thread breakage

Power supply

Weight

Dimensions

Options

Fluorescent lamp

9 needle embroidery machine head 12 needle embroidery machine head

(four-head type) (four-head type)

Pattern embroidery

Maximum 1000 rpm

450(V) x 420(H) (With all heads)

450(V) x 460(H) (With every other head)

95(V) x 360(H) (With cap frame)

450(V) x 420(H) (With sash frame and all heads)

430(V) x 300(H) (With maximum-size tublar square hoop/flat hoop and all heads)

85(V) x 360(H) (With cap frame)

450(V) x 460(H) (With sash frame/flat hoop and every other head)

By timing belt and stepping motor drive

0.1 ~ 12.7 mm (minimum pitch: 0.1 mm)

3.5 2DD floppy disk (Tajima format)

3.5 2HD floppy disk (the equivalent to Tajima format)

3.5 2DD floppy disk (Barudan FDR/FMC format)

3.5 2DD floppy disk (ZSK format)

3.5 floppy disk (brother ECS format)

Automatic thread trimmer

Needle thread breakage detector

Machine: Single phase 200 V, 220 V, 230 V, 240 V,1.7 kVA

Fluorescent lamp : 92VA 49W(Maximum)

600 kg

(Before assembly) 2750 (W) x 810 (L) x 1665 (H) mm

(After setup) 2750 (W) x 1400 (L) x 1665 (H) mm

(Distance between machine heads) 400 mm

Embroidery hoops in different sizes, Bobbin winder,

Parts for boring

Option Standard



2. Names of Machine Components

BES-941BC

Rear

Operation panel

Thread tension dial

Thread tension switch

Thread guide A

Thread guide B

Thread guide C

Cotton stand

Pulley cover

Pulley

Fluorescent lamp switch

Start switch

Fluorescent lamp

Power switch

Control box

Stop switch

Leg

Thumb bolt

BES-1241BC

Operation panel

Thread tension dial

Thread tension switch

Thread guide A

Thread guide B

Thread guide C

Cotton stand

Pulley cover

Pulley

Fluorescent lamp switch

Stop switch

Power switch

Control box

Start switch

Stop switch

Leg

Thumb bolt

The machine heads are numbered 1 to 4 from the right front.


Rear

Fluorescent lamp

21


Accessories

Standard Accessories

Embroidery hoop • Tubular square hoop 30 x 43 (4)

• Tubular round arm set R (4)

• Tubular round arm set L (4)

Others F table assembly

Optional Accessories

• Holder base 30 x 43 (4)

Other embroidery hoops in different sizes

• Sash frame assembly

* Other Tajima embroidery hoops that can be used with BAS-412A and BES-916AC

• Cap frame (4)

Cap frame drive assembly (4)

Base frame set (8)

Set frame base set (1)

• Bobbin winder

• Parts for boring



3. Installation

DANGER

Embroidery machines should be installed only by trained engineers.

Electric wiring should be laid by your distributor or electric experts.

A machine weighs more than 600 kg. Installation should be carried out by 4 or more workers.

Do not connect the power source until installation is completed. Doing so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries.

Install a machine in a place away from a highfrequency welding machine or other machines that may generate a strong electric noise. Failure to do so may cause the embroidery machine to malfunction.

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.


* After installation is completed, get the power supply from a dedicated outlet.

* When connecting multiple machines, exercise care not to exceed the capacity of the outlet.

3-1 Transportation of Machine

When relocating the machine, push the steel frame.

Note) Never push the cover or carriage.

When using a fork lift

Center pillar a a

The central seal

Lift forks

Open the forks of the lift to both sides evenly from the central seal positioned at the center

(viewed from the rear of the machine), and pass them under the legs to lift the machine.

BES-941BC • BES-1241BC 23


When using a crane

Rope

L-shaped steel

Rectangular bar

Place two rectangular bars on the four L-shaped steels on the bottom of the machine steel frame. Loop four ropes around the bars and lift the machine.

Note) When lifting the machine, make sure that the ropes do not contact the machine table or the tension plate.


3-2 Installation of Machine

r


1.

Place the attached cushion sheets w and leveling plates e under the four level adjusters q. The leveling plates e should be placed above the cushion sheets respectively.

2.

Secure the four level adjusters q on the ground using the nuts r so that the machine will be stable.

Note) If the floor is not strong enough, the embroidery machine may be rocked during operation. In such a case, it is recommended that a secure base of concrete be placed below the embroidery machine.

q e w

BES-941BC • BES-1241BC 25


3-3 Preparation of Needle Bar Case

BES-941BC w u q y o e i r t

1.

Loosen the bolt q and set screw o, and move the needle case w to the left.

2.

Press the change bracket collar r against the change case base e on the light, while pressing the change bracket collar t against the change case base y on the left, and tighten the bolt q and set screw !0. Check that needles at needle bar No.1 and 9 are inserted into the needle plate holes smoothly.

Note) • Check that the connecting shaft u does not have backlash in the horizontal direction.

• Never loose the bolt i of the change bracket coller r. If this bolt is loosened, the change bracket coller r will be dislocated and the position of the needle bar case w will need to be adjusted.



BES-1241BC

Bridge r o t

!1

Connecting shaft

Fixing bracket

Fixing bracket B

!2

q

!0

o q o u y i e w

1.

Remove 3 pieces of fixing screw q, loosen 2 pieces of screw w and remove the color change cover e.

2.

Remove the bolts r and detach the fixing bracket for transportation from the bridge and the connecting shaft.

3.

Loosen the bolts t and set screw !0, and move the needle bar case y left side.

4.

Press the change bracket collar i against the change case base u, while pressing the left side change bracket collar o against the change case base u, and tighten the bolts t and set screw !0. Check that needle bar No.1 and 12 are inserted into the needle plate holes smoothly.

(Notes) • Check that ther is no play for the connecting shaft in the horizontal direction.

• Never loose the bolt of the change bracket coller i. If this bolt is loosened, the change bracket coller i will be dislocated and the position of the needle bar case y will need to be adjusted.

5.

Attach the color change cover e by 3 pieces of fixing screw q and 2 pieces of fixing screw w.

6.

Attach the linear guide cover

!1 by 2 pieces of tightening screw !2.

BES-941BC • BES-1241BC 27


3-4 Mounting of Table

Mounting of F table q r w q e e w

1.

Tentatively mount the F table guides U q and L w on both sides of the legs using two bolts each.

2.

Tentatively mount there F table supports F e on the leg front using two bolts each.

3.

Tentatively mount five F table stoppers r on the rear legs using two bolts each.

Note) • The steps 1 and 3 are required only when the F table set is purchased separately from the machine.

• The F table is a standard attachment.


Chapter 1 Preparation of Embroidery Machine o

Pin i t

(A) y u

(A) q

Lower by 1 mm e

4.

Mount four drilling bolts i, spring washers !0, flat washaers !1 each on the rear of F table R t, M y, and L u.

5.

Mount four thumb bolts on the steel pipe below the front leg.

6.

Insert the pins attached to the rear of the F table R t, M y, and L u into the cover o on the leg. Adjust the height of the F table guide U q and the F table support F e so that the table top surface will become 1 mm lower than the bed top surface. After adjustment is finished, tighten each bolt securely.

7.

Mount a drilling bolt i, a spring washer !0, and a flat washer !1 in section (A) of F tables R t and L u.

BES-941BC • BES-1241BC 29


Procedure to mount F table when using the flat frame and the sash frame e r i w u y e t w

1.

Dismount the F table R t, M y, and L u once, and lower the F table support F e. Then, place the F table R t, M y, and L u on the F table guide L w bending section. Fix the F table support F e at this height and insert the pins on the rear of the F table R t, M y, and L u into the holes of the F table stopper r.

Note) Fix the F table stopper and the F table guide L securely at this position.

2.

Insert the F table R t, M y, and L u into the upper and lower positions respectively, then check if the table can be securely fixed by the drilling bolts i. If not, shift the F table support

F e to the right and left for further adjustment.


!0

u o y

Chapter 1 Preparation of Embroidery Machine t

!0

3.

Fix the legs and the table using the F table stays A (2 pcs.) o and B (2 pcs.) !0 while the F table R t, M y, and L u are fixed at the upper position.

* Dismounting can be carried out in the reverse procedures.

Note) • Use two F table stays (B) with one notch at both ends of the F table R t and L u.

• When mounting the F table stays A (2 pcs.) o and B (2 pcs.) !0, fit the F table stay notch into the table, then fix the notch to the legs using the thumb bolts.

• Dismounting can be carried out in the reverse procedures.

• When the F table is at the lower position, the F table stays A and B need not be used.

BES-941BC • BES-1241BC 31


3-5 Mounting of Cotton Stand

BES-941BC

Thread guide C

Thread guide B

Thread guide A

Front e r w t q

1.

Attach four thread guide support bars w to the cotton stand assembly q, while fitting into the four holes.

2.

Mount the thread guide assembly e on the thread guide support bars w using the four screws r.

Note) • When mounting, use one flat washer t below the thread guide support bar w.

• Pay careful attention to the front and back directions of the thread guides (A, B, C).


BES-1241BC e

Thread guide C

Thread guide B

Thread guide A


Front r w t q

1.

Attach four thread guide support bars w to the cotton stand assembly q, while fitting into the four holes.

2.

Mount the thread guide assembly e on the thread guide support bars w using the four screws r.

Note) • When mounting, use one flat washer t below the thread guide support bar w.

• Pay careful attention to the front and back directions of the thread guides (A, B, C).

BES-941BC • BES-1241BC 33


3-6 Lubrication to Needle Bar Case

Proper lubrication is necessary for keeping the machine head in good condition.

CAUTION

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.

Before operating the machine for the first time after unpacking or after leaving the machine without operation for a long period of time, supply one or two drops of oil to two sections of the needle bar. (See the left figure.)

Note) • Use the Brother's specified embroidery machine oil (Nisseki Embroidery Lube No. 10 or the equivalent).

• Supplying an excessive amount of oil will cause dripping onto the material.

BES-941BC

34

BES-1241BC



3-7 Grounding

Note) • When connecting the power supply, make sure to connect it to the grounding cable (with green and yellow stripes).

• When plugging in the outlet, use a plug suited to the outlet.

Grounding cable

BES-941BC • BES-1241BC 35


4. Preparation for Embroidering

CAUTION

Turn off the power switch before starting preparation.

Failure to do so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries.

4-1 Upper Threading

BES-941BC

2

1

4

3

Needle Bar No.3,6,9

No.2,5,8

No.1,4,7

6

5

8

7

1.

Pass the upper thread from the cotton stand through the hole of the thread guide right above each cotton stand bar from the lower side.

2.

Pass the thread through the upper hole of the pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole.

3.

Pass the thread through the upper hole of the 2nd pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole, and wind it around the thread breakage pulley twice.



4.

Pass the thread through the hole of the upper thread guide (U), wind it into the tension disk clockwise once, and place it on the spring.

5.

Pass the thread through each hole of the upper thread guide (U) and the thread guide (C).

6.

After passing the thread through the hole of the thread guide (U), insert the thread into the right side of the inner thread guide, and pass it through the hole of the thread take-up.

7.

Bring the thread to the inner thread guide again to insert it into the hole from the upper section, then into the lower thread guide.

8.

Pass the thread through the hole of the needle bar thread guide, then pass it through the needle eye, without passing it through the presser foot.

BES-1241BC

4

3

2

1

Needle Bar No.3,6,9,12

No.2,5,8,11

No.1,4,7,10

6

5

8

7

1.

Pass the upper thread from the cotton stand through the hole of the thread guide right above each cotton stand bar from the lower side.

2.

Pass the thread through the upper hole of the pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole.

BES-941BC • BES-1241BC 37


3.

Pass the thread through the upper hole of the 2nd pretension. Push up the tension disc with your finger, and place the thread under the disc. Then, pass it through the lower hole, and wind it around the thread breakage pulley twice.

4.

Pass the thread through the hole of the upper thread guide (U), wind it into the tension disk clockwise once, and place it on the spring.

5.

Pass the thread through each hole of the upper thread guide (U) and the thread guide (C).

6.

After passing the thread through the hole of the thread guide (U), insert the thread into the right side of the inner thread guide, and pass it through the hole of the thread take-up.

7.

Bring the thread to the inner thread guide again to insert it into the hole from the upper section, then into the lower thread guide.

8.

Pass the thread through the hole of the needle bar thread guide, then pass it through the needle eye, without passing it through the presser foot.



4-2 Replacement of Bobbin

Note) Remove dust, lint and oil from the bobbin case before replacement.

Removing bobbin case w

1.

Open the rotary hook cover B q.

2.

Hold the knob w and take out the bobbin case.

3.

Close the knob and take out the bobbin e. q e

Replacing bobbin t t

Pull out by about

50 mm r

1.

Put a new bobbin in the bobbin case.

Check the winding direction.

Check that the bobbin is pushed out of the bobbin case by about 0.5 mm. If not, the slip prevention spring of the bobbin case does not work. Adjust the height of the spring or replace it with a new one.

Bobbin

0.5mm

2.

Slide the thread under the tension spring t through the notch r.

3.

Pull out the thread from the hole of the tension spring t.

4.

Pull out the thread by about 50 mm.

BES-941BC • BES-1241BC 39


Attaching bobbin case w

1.

Hold the knob w and attach the bobbin case securely.

2.

Close the rotary hook cover B q. q

4-3 Replacing and Selecting Needle

q w

* Relationship between materials and needles

Needle Material

Denim

Leather

Handkerchief

Shirt

Towel

DB x K5

Needle thickness

#14,

#16, #18

#9, #10

#11,

#12, #13

Removing needle

Loosen the set screw q and remove the needle q.

Attaching needle

With the flat side facing the front, insert the needle all the way until it meets the end of the needle bar. Tighten the set screw q firmly.

Note) • Set the needle so that the notched part will come on the rotary hook side.

• The needle should not be angled to the left

(when viewed from the front).

Selecting needle

• When using special threads such as gold, silver, and rame yarn, use a heavy-duty needle (#11 ~ #16). For better finish, paste the waxed paper on the back of the material.

• In general, use DBxK5 #11 ~ #18 according to the material thickness. For knitted materials, use DBxK23 #11 because its rounded point prevents the knit thread from breaking.


4-4 Attachment of Embroidery Hoop and Frame

Tubular square hoop

Chapter 1 Preparation of Embroidery Machine r e w q t u y q

1.

Insert the fixing pins of the tubular round arms R q and L w into the notches of the X-axis feed frame e. Slide the arm to the right and left and lower the fixing lever r to fix them.

2.

Set the right and left fixtures of the tubular square hoop t while sliding them under the flat spring y upward. Then fit the frame projecting part u into the hole of the tubular square hoop t securely.

BES-941BC • BES-1241BC 41


• By changing the tubular round arm mounting width, various sizes can be set.

Note) Change the width, referring to the pin position.

360mm 400mm

• If a tubular round arm has a backlash:

Follow these steps for adjustment:

Screw q

Tubular round arm support

1.

Move the end of the tubular round arm to the left.

2.

If a clearance is left as shown in the figure, loosen screw q and adjust the tubular round arm support so as to eliminate the clearance between the support and the Xfeed frame. Tighten screw q.

* Follow the same steps when moving the end face of a tubular round arm to the right.

• If tubular round arms are not in a horizontal position:

Follow these steps for adjustment: r w q e

If the tubular round arms cannot be set in a horizontal position (inclined) because of the weight of fabrics, make an adjustment using roller spacers in the following steps.

(Four roller spacers are inserted before shipment.)

1.

Loosen bolts w of X roller base q and remove roller spacers e.

2.

Insert a proper number of roller spacers e between X roller base q and X-feed frame

N r. Tighten bolts w.

Note) When tightening bolts w, press X roller base q against X-feed frame N r and leave no backlash in between.

3.

For the other roller spacers, follow the above steps.

Note) Use the same number of roller spacers in every position.



Holder base (optional) o y t i y u w q o w r

!2

!0

Table

Felt q,e

!1

e i

Do not remove these screws.

!3

1mm 1mm

!3

Attaching the holder base frame

1.

Set the table. (Refer to "3-4 Mounting of Table" (Page 28) for details.)

2.

Insert the frame connecting plate F r into the holder base frame LN q, holder base frame CN w, and holder base frame RN e, using bolts and washers.

3.

Remove four bolts y from the front of X-feed frame t. Attach one each of square nut M6 u to the right and left sides at the front.

At the rear of the frame, attach three each of square nuts M6 u to the right and left sides.

4.

Put frame connecting plates RN i and LN o on X-feed frame t. Fix them with bolts and washers.

5.

Check that the clearance between the table and the mounted holder base frame C assembly w is even when viewed from the machine front.

[Adjustment] Loosen three bolts of the F table support F !0 and move it in the direction of the arrow for adjustment.

BES-941BC • BES-1241BC 43


6.

Check that the clearance between the Y-axis cover

!1 and the mounted holder base frames

LN q and RN e is even when viewed from the right and left sides.

[Adjustment] Loosen the right and left bolts of the F table guide UN !2 and move it in the direction of arrow for adjustment.

7.

Tighten each bolt securely after adjustment is finished.

8.

If removing a holder base frame for frame replacement, etc., remove screw

!3.

Keep the frame connecting plate attached to the X-feed frame.

Attaching the holder base

1.

Mount the holder base mounting frame e on the X-axis feed frame q and holder base frame

C w, using three clamp screws.

2.

When the mounting pitch of the holder base is 370 mm, mount the holder base horizontally to the holder base mounting frames e using the thumb bolts r. q e r w



3.

When the mounting pitch of the holder base is 550 mm, mount the holder base vertically to the X-axis feed frame q and holder base frame C w using the thumb bolts r. r q r w

BES-941BC • BES-1241BC 45


Sash frame (optional) q t r y w q e y t e e

Attaching the sash frame

1.

Set the table. (Refer to "3-4 Mounting of Table" (Page 28) for details.)

2.

Mount two vertical sash frames q on the holder base frames L and R, and two horizontal sash frames w on the X-axis feed frame e and the holder base frame C r, using the screws.

3.

Set the material. Then, set ten sash clips 290 t horizontally on the upper and lower sides, four sash clips 220 y vertically on the left and right sides, and two sash clips 220 y horizontally on the upper and lower sides.



4-5 Flat Frame Every Other Head Operation

When sewing with the flat frame, the sewing range becomes 460 mm maximum in the X direction by conducting every other head operation only for No. 1 and No. 4.

1.

Put the needle bar case at the needle bar No. 1 position and remove the presser feet for heads No. 2 and No. 3.

2.

Set the frame to flat hoop every other head operation.

BES-941BC • BES-1241BC 47


4-6 Adjustment of Thread Tension

Adjustment of upper thread

Adjust upper thread tension to 0.7~1.3N when the thread is pulled at the needle bar thread guide.

0.7~1.3N

Upper stitch width

Upper thread

* Correct adjustment

Turn the upper thread tension dial so that the needle thread can be pulled to the back of the material and that the lower stitch width will be about 1/3 of the upper stitch width.

Lower stitch width

Lower thread

Adjustment of tension spring q w e

6~8mm

1.

The tension spring should be adjusted to 6~8 mm in height and 0.07~0.12 N in force.


0.07~0.12N


2.

For adjusting the height, loosen the screw q and turn the tension spring bracket w.

3.

For adjusting the tension spring force, insert a driver tip in the groove of the thread tension bar e and turn it.

To tighten

Lower thread tension

The standard tension of the lower thread is

0.15~ 0.3N.

This tension may vary depending on the used thread. In general, press the bobbin case to a smooth vertical surface and hang the designated number of coins. Turn the thread tension screw so that the lower thread will come out smoothly.

Note) Check that the bobbin is pushed out of the bobbin case by about 0.5 mm. If not, the slip prevention spring of the bobbin case does not work. Adjust the spring in height or replace it with a new one. (Refer to “Replacing Bobbin” on page 39.)

To loosen

BES-941BC • BES-1241BC 49



Chapter 2

Embroidering Procedures

After installation of machine start embroidering. This chapter explains about the operation panel on the machine as well as precautions for the actual embroidering process.


Functions of Operation Panel

Operation Panel

S T A R T

S T O P

1 2

.

A B C

4 5

G H I J K L

3

D E F

6

M N O

7 8 9

P Q R S T U V W X Y Z

0

SPACE

FLAT

HOOP

CAP

Starts embroidering.

Restarts after moving the carriage to embroidering start position by using the jog switch.

Restarts embroidering after a suspension.

STOP

Cancels errors during embroidering.

Suspends embroidering.

Selects sewing data. ( "Chapter 3 Selection of Data and Embroidering" page 61)

Specifies a sequence of colors (sequence of needle changes) in sewing data.

( "Setting of Needle Bars" page 94)

BES-941BC • BES-1241BC 52


Edits sewing data. ( "Chapter 4 Editing of Embroidering Data" page 79)

Sets the upper thread breakage sensor. ( "Thread Breakage Sensor" page 95)

Machine motions can be set. ( "Chapter 5 Setting" page 91)

Trims thread during suspension.

Moves the hoop to a preset hoop retract position. When this switch is pressed again, the hoop returns to the previous position.

Checks the embroidering area.

Moves the hoop automatically into the embroidering area when the embroidery position is out of the area.

E S C

I N S

D E L

E N D

1 2

.

A B C

4

G H I

5

J K L

3

D E F

6

M N O

7 8 9

P Q R S T U V W X Y Z

0

SPACE

Used for selecting data and setting functions.

BES-941BC • BES-1241BC 53


FLAT CAP

HOOP

Selects the flat or cap hoop. This selection should be done before turning the power ON to the machine. The setting will not be changed if the selection is done after turning the power OFF.

54

Moves the hoop.

Step-back or forward is available during suspension. (Use switches only.)

Changes the speed range during embroidering (Use switches only).

Carries out inching of the hoop when the switch is pressed in the inching mode.

Move the cursor for selecting sewing data and an icon.

Moves the needle bar. The needle moves by the diameter every time this switch is pressed.

Change to the screen for selecting sewing data.

Operation panel

Contrast volume

Adjusts the screen contrast.

SBUS interface connector

Not used (Do not connects anything.)

RS-232C interface connector

Connect personal computer with BE-100 installed, etc.



Switches at Machine Heads

BES-941BC

START

Start switch

BES-1241BC

Between head No. 1 and No. 2


Stop switch

Stop switch


START

Start switch

Stop switch

Stops embroidering operation. "Release stop SW to operate!" is displayed on the screen as soon as the machine stops.

Refer to "Resetting Machine Stop" ( page 131) to stop flashing.

Start switch

Starts embroidering. Holding down this switch executes embroidering at a low speed.

When resuming embroidering after a stop, release stop before pressing this switch. Refer to "Resetting Machine Stop" ( page 131) for details.

Switches on Tension Plate

THREAD SENSOR lamp

HEAD switch

MENDING lamp

MENDING switch

STEP BACK/FWD switch

BES-941BC • BES-1241BC 55


THREAD SENSOR lamp

When red light is on, thread breakage sensor is functioning. When the light is off, the sensor is not effective. When the embroidery machine stops due to thread breakage, the lamp flashes.

HEAD switch

When it is set to ON, needle bar on the head moves for embroidering. When it is set to OFF, the needle bar does not move for embroidering.

MENDING lamp

This lamp lights up when the embroidery machine is in the mending mode.

A lamp on the head with an error lights up. (only when the error can be located)

MENDING switch

This switch is set to upside to drive or to suspend the machine head for a designated period of time when the machine steps back during embroidering.

STEP BACK/FWD switch

When it is turned to BACK, the machine steps back. When it is turned to FWD, the machine steps forward. If you keep the switch turned for a while, the machine will continue stepping even after you let the switch alone. When it is turned to the opposite side, the machine stops.

During timing adjustment of the rotary hook in the test mode, the rotary hook slightly rotates to the left/right when this switch is turned to left/right respectively.

Refer to "Adjustment of Timing Between Needle and Rotary Hook" ( page 158) for further details.

If any error occurs, it can be reset.



Flowchart of Preparation for Embroidering

Turn on the machine power. ( page 58).

Retrieve the embroidery data ( page 59).

"Chapter 3 Selection of Data and Embroidering" ( page 61)

Edit the retrieved embroidery data.

"Chapter 4 Editing of Embroidering Data" ( page 79)

Press on the operation panel.

Press on the operation panel.

BES-941BC • BES-1241BC 57


Turn on the Machine Power

1.

Turn on the power to the machine.

58

2.

Reset the emergency stop button.

3.

Press the start switch.

4.

A message is displayed on the LCD as soon as the power is turned ON.

BES-941BC

BES-1241BC

5.

The alarm sounds three times. The needle bar and the presser foot move up. The hoop moves back to the zero point and the sewing screen is displayed.

The speed range and actual speed is displayed.

A sequence of changing colors is displayed.

A sequence of colors is displayed.

A total number of stitches is displayed.

A data name is displayed.

A number of colors registered in data is displayed.

A kind of hoop is displayed.

Operational icons are basically displayed; however, some icons, such as

S T O P

, may not be on the screen.

An angle at which the hoop feeding finishes is displayed.



Retrieve the Embroidery Data

The description in this section is based on the method of reading data which is registered in the memory unit of the machine.

Refer to "Selection of Data" ( Page 63) for details.

1.

Press switch.

Data saved in the machine is displayed.

2.

Select a screen by pressing keys, and select required data by pressing ten keys or .

When using ten keys for data selection, input a numerical figure (1 ~ 9) which indicates each data name. Required embroidery data is selected and read.

3.

Press key.

Required embroidery data is selected and read.

Selected embroidery data is read.

Start Embroidering

1.

Press to check the embroidering area.

2.

Press to start embroidering.

Sewing is started and the next screen is displayed.

BES-941BC • BES-1241BC 59



Chapter 3

Selection of Data and Embroidering

This Chapter describes how to select embroidery data in order to start embroidering.


What Can the Machine Do?

Selection of Embroidery Data

Registration of data from the floppy disk ( Page 63)

Reading of data from the memory ( Page 66)

Registration of data created by BE-100 ( Page 67)

(These icons are displayed in the lower right of the screen.)

Modification of data name ( Page 70)

Deletion of embroidery data ( Page 68)

Embroidering Operation

Embroidering start ( Page 74)

Embroidering feedhold ( Page 75)

Embroidering cancel ( Page 75)

Step forward/step back ( Page 76)

Step forward (back) stitch by stitch

Step forward (back) by every 10 stitches

Step forward (back) by every 100 stitches

Step forward (back) until a next color change

Step forward (back) to the embroidering start point of a next pattern

Step forward (back) by a specified number of stitches ( Page 76)



Selection of Data

Select data in order to start sewing.

Data to use for actual embroidering is selected from data registered in the machine memory. A maximum of 45 kinds or 480,000 stitches of embroidery data can be registered in the machine memory; however, depending on the combination of embroidery data, the number of total stitches available may become less.

When using data in a floppy disk or in BE-100, register it in the machine memory once before selection.

If there is no space in the machine memory, delete unnecessary data to make a space.

Data in a floppy disk

Machine memory

Registration

Data created by BE-100

Reading

Sewing

Registration of Embroidery Data from Floppy Disk

Register embroidery data from a floppy disk into the machine memory.

Types of data to be registered are as shown below.

• DOS-formatted data

Data format Extension

Data with a name of [xxxx.ECS]

Icon

ECS

Tajima Data with a name of [xxxx.DST]

Data with a name of [xxxx.DSB] Barudan

Zanks (DSK) Data with a name of [xxxx.DSZ]

Data received from BE-100 Data with a name of [xxxx.STH]


BES-941BC • BES-1241BC 63


• Other data

Data format

Barudan FDR

Barudan FMC

Zanks ZSK

Icon


Loading and Loading of Floppy Disk

1.

When loading a floppy disk, set it straight with the labeled surface facing this side.

64

2.

When unloading a floppy disk, press the eject switch.

3.

When it comes out, pull it straight.

When the access lamp if ON, never press the eject switch. Otherwise, embroidery data in the floppy disk may be destroyed.

Eject switch

Access lamp

Registration of Sewing Data into Machine Memory

1.

Load a floppy disk with sewing data.



2.

Press .

3.

Select a screen for data registration by pressing .

Currently selected embroidery data

Currently displayed screen

No. of screens to be selected

Data in machine memory

Number of stitches in selected embroidery data

When there is no data

4.

Select an area for registration, using ten keys or

.

, then press

A space available is automatically selected.

Pressing automatically locates the first space in the memory.

5.

Data in the floppy disk is displayed. Press to select a screen.



Data in floppy disk

Icon indicating a kind of selected data

Pressing displays a pattern name.

Name of a selected embroidery pattern

(It may be the same as a file name.)

6.

Select data to register by pressing ten keys or

Data is newly registered in the machine memory.

then press .

Select embroidery data and press . The selected data is automatically registered in the memory and the machine enters a standby status.

If registration is done without loading a floppy disk, the following screen is displayed after the step 4 is finished.

Load a floppy disk for data registration.

BES-941BC • BES-1241BC 65


Reading from Memory

Data to use for sewing can be selected from the machine memory.

A maximum 45 kinds or 480,000 stitches of embroidery data can be registered in the memory.

1.

Press .

Embroidery data registered in the memory is displayed.

2.

Select a screen by pressing .



3.

Select embroidery data to read by pressing ten keys or .

4.

Press .

Embroidery data is selected and read.

When a free space is specified in the memory, a screen for reading data from the floppy disk is displayed.

Refer to "Registration of Sewing Data into Machine Memory" (steps 5 and afterward on Page

65).

5.

The initial screen is displayed.



Registration of Embroidery Data from BE-100

Connect the operation panel and the personal computer with BE-100 installed in order to register the embroidery data into the machine memory.

1.

Connect the personal computer with BE-100 installed and the operation panel by means of the RS-232C cable.

Personal computer with BE-100 installed

Operation panel

Dedicated communication cable (Option)

2.

Press the .

3.

Select the data registration screen by pressing the .

4.

Select an area for data registration by pressing ten keys or then press the key.

, and

5.

Press the .

When a floppy disk is set

When no floppy disk is set

BES-941BC • BES-1241BC 67


6.

Press the .

7.

The BE-100 embroidery data is displayed. Press the and select a required screen.

8.

Select embroidery data to register by pressing ten keys or then press the key.

The data is registered in the machine memory.

, and

Deletion of Embroidery Data from Machine Memory

Embroidery data can be deleted from the machine memory.

1.

Press .

A list of registered data is displayed.

2.

Select a screen by pressing .



3.

Select embroidery data to delete by pressing ten keys or .



4.

When D E L is pressed, the confirmation message is displayed.

5.

When key is pressed, selected embroidery data is deleted from the memory.

When deleting embroidery data in the machine memory entirely:

When deleting embroidery data registered in the machine memory entirely, turn ON the power to the machine while pressing D E L .

BES-941BC • BES-1241BC 69


Modification of Embroidery Data Name

Name of embroidery data registered in the machine memory can be modified.

This example shows how to modify the data name "FLOWER" to "TEST003".

A maximum number of characters to use for an embroidery data name is 8.

The following kinds of characters can be used.

It is impossible to input a " . " or space.

Alphabetical characters (A ~ Z) Numerical characters (0 ~ 9)

Use

0

SPACE

through

9

W X Y Z

. An input character changes depending on the number of times each is pressed as shown below.

5

J K L

_ (underbar), - (hyphen)

Use

1

.

.

1

.

1 time

4 times

3 times

2 times

7

P Q R S

4 times

3 times

2 times

1 time

5 times

3 times

2 times

1.

Press .

Embroidery data saved in the memory is displayed.

2.

A list of embroidery data is displayed. Select a screen by pressing .



3.

Select embroidery data to modify the name by pressing ten keys or

.

4.

Press .



When selected data has a pattern name, the name is displayed. Press the key once again.

5.

Input a new data name by pressing ten keys.

When modifying embroidery data names entirely

6.

Pressing D E L deletes currently reversed characters.

7.

Press

8

T U V

twice.

"T" is input.

8.

Press

3

D E F

three times.

"E" is input.

9.

Press

7

P Q R S

five times.

"S" is input.

10. Press

8

T U V

twice.

"T" is input.

11. Press

0

SPACE

once.

"0" is input.

BES-941BC • BES-1241BC 71


12. Press .

When inputting the same character continuously, press the to move the cursor to the right.

13. Press

0

SPACE

once.

"0" is input.

14. Press

3

D E F

once.

"3" is input.

15. After inputting a data name, press .

A data name is modified by the above procedures.

When modifying only one character:

[FLNWER] can be modified to [FLOWER] in the following procedures.

6.

Press .

7.

Press twice and display "N" reversely.

8.

Press

D E L

.

"N" is deleted.


9.

Press

6

M N O

four times.

"O" is input.

10. Press .

A data name is modified by the above procedures.


BES-941BC • BES-1241BC 73


Sewing Operation

Before Starting Sewing

Select a hoop to set on the machine.

The following operation should be done before turning the power ON to the machine. Otherwise, it will damage the hoop.

1.

Select either the flat hoop or cap hoop, using FLAT or CAP switch on the operation panel.

When a flat or tabular hoop , or a sash frame is set on the machine, select [FLAT].

When a cap hoop is set, select [CAP].

FLAT CAP

HOOP

2.

Specify an embroidery hoop set on the machine, referring to "Embroidery

Hoop" ( Page 98).

Starting Sewing Operation

For details of specifying a sewing start position, refer to "Registration of Sewing

Start Position" ( Page 106).

When is pressed while the message "Area over" is indicated on the screen, a dialog box is displayed for confirming whether or not to start sewing forcibly.

Pressing starts sewing; however, depending on the start position, an interference with the frame may occur. Exercise added care when doing so.

1.

Check that sewing data has been selected, then press

Sewing is started.

The current embroidering status is indicated.

Indicates a sequence of color changes.

.

No. of current stitches

Indicates a name of data currently used for sewing.

Indicates the number of data currently used for sewing.

Currently selected speed range

The range can be modified by pressing .



Feedhold and Cancellation of Sewing

Feedhold

1.

Press

S T O P

.

Sewing is interrupted.

Cancellation

1.

Press E S C while sewing is interrupted.

When repetition of patterns is set, a pattern which is currently being sewn is canceled. When canceling all patterns, press

E S C

once again.

2.

A message for confirmation is displayed. When canceling sewing, press

.

BES-941BC • BES-1241BC 75


Step Forward and Step-Back

Stitches can be advanced (step forward) or retracted (step-back) without sewing.

Step Forward/Step-Back Mode

1.

Press when selecting either mode before starting sewing and press

S T O P

when selecting a mode during sewing.

Setting Amount or Timing of Step Forward/Step-Back

A step forward/step-back amount or timing can be selected as described below.

For stepping forward (back) stitch by stitch

For stepping forward (back) by 10 stitches

For stepping forward (back) by 100 stitches

For stepping forward (back) up to the next (previous) color change

For stepping forward up to the sewing start point of a next pattern if repetition of patterns is set.

Specify the number of stitches for stepping forward (back).

1.

Select a required item as described above by pressing .

When the number of stitches is specified, the needle steps forward

(back) to an input position:

1.

Press the five times.

2.

Input the number of stitches to move by pressing ten keys.

3.

Press the E N D .

The needle steps forward (back) as specified.



4.

The embroidery head advances (retracts) by a specified number of stitches.

For Step Forward (Back)

1.

Press .

Stitches steps forward (back) by a specified amount.

Resuming Sewing

1.

Press .

Sewing is started.

BES-941BC • BES-1241BC 77


Writing the embroidering data

The embroidering data stored in the memory of the machine is written to the floppy disk.

The format of the data to be written is brother ESC or TAJIMA TFD.

1.

Press the button.

The embroidering data stored in the memory is displayed.

2.

The list of the embroidering data is displayed. Select the screen by pressing .

3.

Select the embroidering data to be written with numeric keys or .

4.

Press the E N D button.

5.

Designate the thread trimming feed number with .

It cannot be designated when the ECS data format is selected.

Use numeric keys, , or the

D E L

button to change the file name.

In any data format other than the ECS format

6.

Highlight the icon of the data format with of the data to be written with .

In the ECS data format

and designate the format

7.

Highlight the edit value validating or invalidating icon with designate validating or invalidating of the edit value.

and

8.

Set the formatted floppy disk.

9.


The selected embroidering data is stored on the floppy disk.


Chapter 4

Editing of Embroidering Data

Pressing on the operation panel after reading embroidering data displays the embroidering data editing screen. Simple operation by using embroidering data is available on this screen.



Editing

Enlargement/reduction is executed ahead of rotation. When an embroidery pattern is so set to be rotated by 90˚ and then enlarged by 2 times in the X-axis direction, the X-axis enlargement is executed first and rotation by 90˚ is executed afterwards. Therefore, a pattern is enlarged by 2 times at the sewing point.

Rotation of embroidery pattern ( Page 81)

Enlargement/reduction of embroidery pattern in the X-axis direction

( Page 82)

Enlargement/reduction of embroidery pattern in the Y-axis direction

( Page 82)

Mirror pattern ( Page 84)

Right/left mirror pattern

Up/down mirror pattern

Zero point symmetric mirror pattern

No. of repetitions in the horizontal direction (lines) ( Page 86)

No. of repetitions in the vertical direction (rows) ( Page 86)

(

(

) Distance in the horizontal direction between two outer hoop centers ( Page 86)

) Distance in the vertical direction between two outer hoop centers ( Page 86)

Direction of repetitions ( Page 86)

Horizontal direction from upper left to lower right

Vertical direction from upper right to lower left

Horizontal direction from lower right to upper left

Vertical direction from lower left to upper right

Horizontal direction from upper right to lower left

Vertical direction from upper left to lower right

Horizontal direction from lower left to upper right

Vertical direction from lower right to upper left

0 stitch deletion ( Page 88)

Thread trimming feed number ( Page 89)

Swing width correction ( Page 89)

BES-941BC • BES-1241BC 80


Rotation

A pattern can be rotated.

A maximum range of rotation is 1 ~ 359 degrees.

The rotating direction is counterclockwise.

Rotating angle can be set in either of the following.

By using

By using ten keys

Angle can be specified in increments of 90˚. Setting of 90˚,180˚ or 270˚ is available.

Angle can be specified in increments of one degree.

1.

Read sewing data.

2.

Press .

3.

Press to select an angle or use ten keys to specify an angle.

4.

Press

E N D

.

The initial screen is displayed again.

BES-941BC • BES-1241BC 81


Enlargement and Reduction

A pattern can be enlarged or reduced.

The enlargement and reduction ratio is 50 ~ 200%.

The number of stitches does not change even by enlargement or reduction of a pattern. However, stitches may become too rough or close if enlargement or reduction is excessive.

There are the following two types of enlargement/reduction.

• Enlargement/reduction at the same ratio in both the X and Y directions

• Enlargement/reduction at different ratios in the X and Y directions

1.


2.

Press .

Enlargement/reduction at the same ratio in the X/Y directions

3.

Press .

are reversed in black.

4.

Input enlargement/reduction ratio by pressing ten keys.

5.

Press E N D .


BES-941BC • BES-1241BC 82


Enlargement/reduction at different ratios in the X/Y directions

3.

Press twice.

is reversed in black.

4.

Input enlargement/reduction ratio in the X direction by pressing ten keys.

5.

Press .

is reversed in black.

6.

Input enlargement/reduction ratio in the Y direction by pressing ten keys.

7.

Press E N D .


BES-941BC • BES-1241BC 83


Mirror

A pattern can be reversed as if it is reflected in the mirror.

Right/left mirror patter

Up/down mirror patter

Zero point-symmetric mirror patter

Up/down mirror pattern Right/left mirror pattern Zero point-symmetric mirror pattern.

Right/left mirror pattern

Up/down mirror pattern

Zero point-symmetric mirror pattern

The pattern is reversed in the right/left direction on the basis of the embroidering start point.

The pattern is reversed in the up/down direction on the basis of the embroidering start point.

The pattern is reversed on the basis of the embroidering start point.

1.

Sewing data is read.

2.

Press .


Right/Left Mirror Pattern

3.

Keep pressing until is displayed.


4.

Press

E N D

.


Up/Down Mirror Pattern

3.


4.

Press

E N D

.


Zero Point-Symmetric Mirror Pattern

3.


4.

Press E N D .


BES-941BC • BES-1241BC 85


Repetition

A pattern is repeatedly copied as many times as specified.

The number of repetitions is 1 ~ 99 in both the vertical (row) and horizontal (line) directions.

There are the following eight directions of repetitions.

Horizontal direction from upper left to lower right

Vertical direction from upper right to lower left

Horizontal direction from lower right to upper left

Vertical direction from lower right to upper left

Vertical direction from lower left to upper right

Horizontal direction from upper right to lower left

Vertical direction from upper left to lower right

Horizontal direction from lower left to upper right

There are the following two types of intervals between repetitions.

By setting a distance between the outer hoops of each pattern

By setting a distance between the centers of each pattern

1.


2.

Press twice.

3.

Input the number of repetitions in the vertical and horizontal directions, by pressing ten keys.

The vertical and horizontal directions are changed over by pressing .



4.

Press .

5.

Input intervals between repetitions by pressing ten keys.

The vertical and horizontal directions are changed over by pressing

Press for setting a distance between the centers of each pattern.

.

For setting a distance between the outer hoops of each pattern

For setting a distance between the centers of each pattern

6.

Select the direction of repetitions by pressing .

7.

Press

E N D

.


BES-941BC • BES-1241BC 87


Other Editing

Setting of other functions related to editing is available.

The following types of setting is available.

0 stitch deletion

Thread trimming feed number

Swing width correction

For deleting stitches at the same point without stepping forward or back.

This function is previously set to (for not deleting

0stitch)upon shipment.

For deleting 0 stitch

For not deleting 0 stitch

For setting the number of feeds for thread trimming

This function is previously set to (ECS data) or (Except ECS data)upon shipment.

~ For thread trimming at the number of feeds indicated on the icon

For not thread trimming by feeding

For setting the needle swing width correction amount

The correction amount can be set in increments of 0.1mm.

The setting range is -0.5 ~ 2.0mm in both the X and

Y directions. (The setting range is displayed as "-5

~ 20" on the screen.)

This function is previously set to 0(no swing width correction)upon shipment.

1.


2.

Press three times.

0 Stitch Deletion

3.

Select this function by pressing .

4.

Press E N D after setting is finished.

Press when setting continuously.

BES-941BC • BES-1241BC 88

Thread Trimming Feed Number

3.



4.

Select the number of feeds by pressing .

5.

Press

E N D

after setting is finished.

Swing Width Correction

Correction values within -5 ~ 20 can be input. However, excessively large values may result in distortion of a pattern.

3.


4.

Select a correction amount in the X direction by pressing .

5.

Reverse by pressing .

6.

Input a correction amount in the Y direction by pressing .

BES-941BC • BES-1241BC 89


7.

Press E N D after setting is finished.

Press when setting continuously.



This Chapter describes how to set a sewing speed, correct trouble including thread breakage and others related to machine motions.



Setting of Needle Bars

Needle bars allocated in the sequence of embroidering ( Page 94)

Setting of Thread Breakage Sensor

Thread breakage sensor ON/OFF ( Page 95)

Thread breakage sensitivity ( Page 95)

Number of stitches in automatic step back ( Page 96)

Display of total stitch number in automatic step back

Lower thread counter counts ( Page 97)

Stitch counter indication ( Page 97)

Setting of Machine

Selection of embroidery hoop ( Page 98)

Display of every head/every other head ( Page 98)

Speed range ( Page 99)

Speed in speed range ( Page 100)

Thread trimming length ( Page 103)

Thread removal feed length ( Page 103)

Inching ON/OFF ( Page 104)

Sewing area ( Page 105)

Resetting of thread breakage error ( Page 102)

Needle bar stop at mending stop point ( Page 102)

Method of thread trimming before thread breakage error ( Page 102)

Method of thread trimming before stop ( Page 102)

Setting of Environment

Return to start point after embroidering end ( Page 108)

Method of reflecting modified machine speed ( Page 108)

Method of checking the embroidery area ( Page 109)

Power voltage ( Page 110)



Data transfer speed ( Page 110)

Display language ( Page 111)

Alarm sound ( Page 112)

Motive speed ( page 113)

Small-pitch delection ( page 114)

Release B1 error ( page 115)

Setting of Boring

Boring mode ON/OFF ( page 116)

Data shift ON/OFF ( page 117)

Setting of Lock Stitch

Lock stitch ON/OFF (sewing start position) ( page 117)

Lock stitch ON/OFF (sewing send position) ( page 118)

Lock stitch ON/OFF (sewing start position after thread trimming) ( page 119)

Setting of speed limit in a small pitch

Speed limit in a short pitch ( page 120)

Display of Information

Display of pattern information ( Page 125)

Features of machine ( Page 126)

Version information ( Page 127)

Feed timing ( Page 121)

Automatic input setting ( Page 122)

Hoop Retract Point

Hoop retract point ( Page 106)

Automatic hoop retract ON/OFF ( Page 107)

Hoop Movement

Registration of embroidering start position ( Page 106)

Movement to registered sewing start point ( Page 107)

BES-941BC • BES-1241BC 93


Setting of Needle Bars

Needle bars allocated in the sequence of sewing can be modified.

This setting is explained on the basis of the BES-1241BC screen.

Either feedhold or hoop retract can be inserted.

1.

Press .

2.

Select a sewing sequence to modify by pressing .

The current embroidering sequence is selected while embroidering is interrupted.

Press for modifying all sequences at one time.

3.

Input the number of a needle bar by pressing ten keys.

When inputting a numerical figure exceeding 10, press the 0

SPACE

first.

Insertion of Feedhold

Press and reverse the display on the right of a point to insert a feedhold, then press

S T O P

.

A feedhold mark is displayed.

4.

Press E N D .

Modified setting is saved and the previous screen is displayed again.

Insertion of Hoop Retract

1.

Press to highlight the position right next to the position to insert the hoop retract and press .

2.


The changed setting is stored and the previous screen is displayed.

BES-941BC • BES-1241BC 94


Thread Breakage Sensor

Validity or invalidity and sensitivity of the thread breakage sensor can be set.

Setting of sensor validity/invalidity

This function is previously set to valid for all heads upon shipment.

1.

Press .

2.

Specify the number of a machine head by pressing ten keys and validate or invalidate the thread breakage sensor.

Pressing the same ten key once again changes between validity and invalidity.

Heads with which the sensor is valid

Press to switch over the thread breakage sensor for each head between ON and OFF.

3.

Press E N D .

Modified setting is saved and the initial screen or halt screen is displayed again.

Thread Breakage Sensitivity

Sensitivity of the thread breakage sensor can be set.

The sensitivity can be set within the range of 1 ~ 100. Sensitivity increases as the figure decreases.

This function is previously set to 10 upon shipments.

1.

Press twice.

2.

Select the needle bar for which the sensitivity is modified by pressing

.

The number of needle bars changes in the sequence of :

ALL (all needle bars) 1 2 ... 9 or 12 (max.) ALL ...

3.

Select by pressing .

BES-941BC • BES-1241BC 95


4.

Input sensitivity of the thread breakage sensor.

5.

Press E N D .


Automatic Step-Back

The number of stitches to step back automatically in case of a thread breakage can be set.

Setting can be done within the range of 0 ~ 10 stitches.

This function is previously set to 0 stitches upon shipments.

1.

Press twice.

2.


3.

Input the number of stitches to step back automatically by pressing ten keys.

Pressing sets whether to execute an extra step-back by a sensitivity amount of the thread breakage sensor in the automatic step-back mode.

Total number of stitches to step back in the automatic step-back mode

When stepping back by a sensitivity amount of the thread breakage sensor

When stepping back by preset number of stitches

4.

Press

E N D

.




Setting of Lower Thread Counter/Stitch Counter

The lower thread counter reduces the indication each time one pattern is finished.

After the reduction is finished, an error message can be displayed.

The stitch counter increases the indication stitch by stitch.

The lower thread counter can be validated or invalidated by pressing .

The stitch counter can be cleared to zero by pressing

D E L

.

1.


2.

Input the number of counts of the lower thread counter by pressing ten keys.

Number of stitches

3.

Press E N D .


BES-941BC • BES-1241BC 97


Setting of Machine

Machine motions can be set.

Embroidery Hoop

Specify a type of an embroidery hoop set on the machine.

A type of a hoop to be selected varies depending on a type of a hoop (flat or cap) selected by a switch on the operation panel.

When a flat hoop is selected

When a cap hoop is selected

Tabular square hoop

Sash frame

Flat hoop

Semi-wide cap frame

Wide cap frame

All heads or every other head can be selected by pressing .

All heads

Every other head (Only heads No. 1 and No. 4 are operated.).

When operating every other head, refer to "4-5 Flat Frame Every Other Head

Operation" ( Page 47) and remove the presser feet of heads No. 2 and No. 3.

1.

Press .

2.


3.

Press .

4.

Select a type of a hoop by pressing .

All heads or every other head as currently selected

Currently selected hoop

5.

Select either all heads or every other head by pressing .

6.

Press

E N D

.



Speed Range

A range of speed for each needle bar can be set.

This setting is explained on the basis of the BES-941 screen.

The speed range can be set within the range of 1 ~ 6.

1.

Press .

2.



3.

Press .

4.

Select a needle bar by pressing .

When setting the same speed range for all needle bars, press .

When modifying the speed range for one needle bar

When modifying the speed range for all needle bars

5.

Input a required speed range by pressing ten keys.

6.

After modification is finished, press E N D .


BES-941BC • BES-1241BC 99


Speed of Each Speed Range

Maximum speed of each range can be set.

Speed can be input in increments of 10rpm.

The upper limit of a speed to be set varies depending on a selected hoop.

1.

Press .

2.


3.

Press .

4.

Select a speed range to modify by pressing .

Upper limit of speed to be set in each range

Maximum speed

Lowest speed

5.

Input a required speed by pressing ten keys.

6.

After modification is finished, press E N D .


100 BES-941BC • BES-1241BC


Setting of Mending

Details of mending can be set in case of a thread breakage.

Contents of each setting item are as described below.

Item Contents

For setting a mending end point (number of stitches before a thread breakage) within the range of 1 ~ 10.

This function is previously set to 1 stitches upon shipments.

For setting whether to reset a thread breakage error automatically

This function is previously set to (Manual) upon shipments.

For resetting an error automatically

For resetting an error manually

For setting whether to stop embroidering temporarily at the mending end point

For stopping embroidering at the mending end point

For stopping embroidering temporarily at the mending end point and then starting all heads automatically

For not stopping embroidering at the mending end point and continuing embroidering

Manually trim the lower thread immediately after resetting a thread breakage error if feeding by stitch back is long (i.e., 40 to

50 mm or more) in this mode.

Set the thread trimming method to .

For setting a thread trimming method using the immediately after resetting a thread breakage error. (This setting is effective only once after resetting the error.)

For trimming both upper and lower threads

For trimming the lower thread only

For not trimming any thread

Refer to "Mending" ( Page 133).

1.

Press .

2.


3.

Press .

BES-941BC • BES-1241BC 101


Setting of thread breakage error resetting method

4.


5.

Press for modifying a resetting method.

For setting whether to stop embroidering temporarily at the mending stop point

4.


5.

Press and select whether to stop embroidering temporarily.

Setting of thread trimming method after stopping

4.

Select a thread trimming method by pressing .

Setting of mending stop position

4.

Select a stop point (number of stitches before mending) by pressing ten keys.

The machine does not stop if the automatic step-back setting is lower than the input value.

Modify this figure.

After setting all items, press E N D .

Modified setting is saved and the initial screen is displayed again.

102 BES-941BC • BES-1241BC


Thread Trimming Length

Length of thread to leave on the needle bar after thread trimming can be set for each needle bar.

This function is previously set to 5 upon shipments.

1.

Press .

2.


3.

Press .

4.

Select a needle bar to modify by pressing .

Press for setting the same speed range for all needle bars.

5.

Input thread length by pressing ten keys.

Thread length can be input within the range of 1 ~ 10. Length decreases as the figure decreases.

When inputting "10", press the

0

SPACE

first.

6.

After setting is finished with all needle bars, press

E N D

.


Thread Withdrawal Feed Length

Thread withdrawal length can be set before thread trimming.

The input range is 0 ~ 100mm.

This function is previously set to 15mm upon shipments.

BES-941BC • BES-1241BC 103


1.

Press .

2.


3.

Press .

4.

Input thread withdrawal length by pressing ten keys.

5.

Press E N D .


Inching

Whether to select the inching mode for thread trimming can be set.

This function is previously set to selected upon shipments.

1.

Press .

2.


104

3.

Press .

4.

Set whether to select the inching mode by pressing .

5.

Press E N D .




Sewing Area

An allowable area for sewing can be set.

A maximum sewing area during operation of every other machine heads is as shown below.

460mm

(0, 0)

1

(450mm)

2

(460, 450)

1.

Press .

2.


3.

Press .

4.

Specify coordinates of the upper left of the sewing area. Move the hoop by pressing .

Indicates a currently set embroidery area

5.

Press .

Pressing set a maximum area designated for a currently set hoop.

6.

Specify coordinates of the lower right of the sewing area. Move the hoop by pressing .

7.

Press

E N D

.

Pressing restores a status before modification of setting.

BES-941BC • BES-1241BC 105


Registration of Sewing Start Position

Register a position to start sewing.

When returning to a registered sewing start position, hold down

.

S T O P

and press

1.

Press the key.

The hoop coordinates are displayed.

2.

Shift the hoop to a position to start sewing by pressing the .

3.

Press E N D .

4.

Press the key.

106

Hoop Retract Point

The hoop basic point (retract point) can be set when sewing is interrupted.

When restarting sewing after the hoop is retracted during an interrupt, press .

1.

Press .

2.

Move the hoop by pressing .

Current hoop coordinates

3.

Press

E N D

.


The hoop returns to the initial point.

Cancellation of Setting

1.

Press once again.

Modified setting is canceled and the initial screen or halt screen is displayed again. The hoop returns to the initial point.



Hoop Automatic Retract

Set whether to move the hoop automatically to the retract point at the end of sewing.

This function is previously set to no hoop automatic retract upon shipments.

1.

Press .

2.

Select whether to retract the hoop automatically by pressing .

For automatically retracting the hoop

For not retracting the hoop automatically

3.

Press

E N D

.


Movement to Registered Sewing Start Point

This operation should be done before starting sewing.

1.

Hold down

S T O P

and press .

2.

The hoop moves and the zero point is detected. Then the hoop moves to a registered start point.

3. The initial screen is displayed again.

BES-941BC • BES-1241BC 107


Setting of Environment

Return to Start Point

Whether to return to the start point after sewing is finished can be set.

1.

Press twice.

2.


3.

Press .

4.


5.

Select whether to validate a return to the start point by pressing .

When the start point return is valid

When the start point return is invalid

6.

Press

E N D

.


Speed Range

For setting whether to reflect modified machine speed to all needle bars.

1.

Press twice.

2.


3.

Press .

BES-941BC • BES-1241BC 108


4.


5.

Modify setting by pressing .

Press

E S C

for invalidating the modification.

6.

Press

E N D

.


Checking the Embroidery Area

The embroidery area can be checked according to the following procedure.

The following two checking methods (rectangle and octagon) can be selected.

Item Contents

Checking by rectangle tracing

Checking by octagon tracing

1.

Press twice.

2.

Select with .

3.

Press .

4.

Press to select .

5.

Press to change the settings.

Checking with the rectangle

Checking with the octagon

6.

Press E N D .

The changed settings are stored and the previous screen is displayed.

BES-941BC • BES-1241BC 109


Power Voltage

Voltage of power supplied to the machine can be specified.

Available voltage is 200V, 220V, 230V and 240V.

Item Contents

200V

220V

230V

240V

1.

Press twice.

2.


3.

Press .

4.

Select voltage by pressing .

5.

Press E N D .


Setting of RS-232C Communication Speed

Speed for transferring embroidery data between the operation panel and a personal computer with BE-100 installed.

The transmission speed can be selected within the range of 9600, 19200, 38400 and 115200. (unit : bps)

1.

Press twice.

2.


110 BES-941BC • BES-1241BC

3.

Press .

4.

Select [RS Speed] by pressing .

~

5.

Select cpmmunication speed by pressing .

6.

Press E N D .



Display Language

A language to display on the screen can be set.

The following languages can be selected.

Display

JPN

Eng fr.

Deuts.

Contents

Japanese

English

Spanish

French

German

1.

Press twice.

2.


3.

Press .

BES-941BC • BES-1241BC 111


4.

Select [Language] by pressing .

5.

Select a language to display by pressing .

6.

Press E N D .

The previous screen is displayed again with a display in a selected language.

Alarm Sound

Whether to generate a sound in case of an error can be set.

The following sounds can be set.

ON

OFF

5

A sound is generated until the error is reset.

A sound is generated twice.

A sound is generated five times.

1.

Press twice.

2.


3.

Press .

112

4.

Select [Beep] by pressing .

5.

Select a kind of sound by pressing .

6.

Press

E N D

.




Motive Speed

The startup speed of the main shaft can be set.

The following startup speed can be set.

NOMAL

UP

CAP

FLAT

Starts up the main shaft at the normal speed.

Speeds up the startup speed of the main shaft.

Speeds up the startup speed of the main shaft when using the cap frame.

Speeds up the startup speed of the main shaft when using a frame other than the cap frame.

1.

Press twice.

2.

Select with .

3.

Press .

4.

Select "Motive Speed" with .

5.

Select the type of the startup speed of the main shaft with .

6.

Press the

E N D

button.


BES-941BC • BES-1241BC 113


Small-Pitch Deletion

Stitches less than preset can be deleted.

Settings in the range of OFF to 1.0 mm (in units of 0.1 mm) are valid. When OFF is chosen, stitch deletion is not carried out.

"0.3" is set before shipment.

1.

Press twice.

2.

Select with .

3.

Press .

4.

Select "Del. small stch" with .

5.

Select the maximum stitch to be deleted with .

6.

Press E N D .

The new setting is saved and calculation is performed. The previous screen appears.

114 BES-941BC • BES-1241BC


Release B1 error

The resetting method of the b1 error can be set.

The following resetting methods can be set.

MANUAL

AUTO

RETRY

Manually resets entanglement

Automatically resets entanglement

Automatically resets entanglement and restarts the operation

1.

Press twice.

2.

Select with .

3.

Press .

4.

Select "Release b1 err" with .

5.

Select the resetting method with .

6.



BES-941BC • BES-1241BC 115


Boring

Whether to validate or invalidate the boring mode and to shift data in case of boring can be set.

This setting is available only for sewing data which has been created for boring.

The machine itself cannot check if the sewing data is for boring or not. Therefore, make sure to check the data before starting sewing.

Mount the following optional accessories on the machine before starting sewing.

• Boring knife

• Needle plate for boring

If editing including enlargement, reduction or rotation is done using sewing data created for boring, the correct sewing may not be available.

This function is previously set to :

• Boring mode valid/invalid : invalid

• Data shift valid/invalid : invalid

Validation/Invalidation of Boring Mode

1.

Press twice.

2.


116

3.

Press .

4.


5.

Validate or invalidate the boring mode by pressing .

When the boring mode is valid

When the boring mode is invalid



Validation/Invalidation of Data Shift

1.

Press twice.

2.


3.

Press .

4.


5.

Validate or invalidate the data shift by pressing .

When the data shift is valid

When the data shift is invalid

6.

Press

E N D

.


Lock Stitch

Lock stitch can be set at the sewing start and end positions and sewing start position after trimming thread.

Setting lock stitch at the sewing start position

1.

Press twice.

2.

Select with .

BES-941BC • BES-1241BC 117


3.

Press .

4.

Select with .

5.

Press to validate or invalidate the lock stitch.

Validating the lock stitch

Invalidating the lock stitch

6.



Setting the lock stitch on the sewing send position

1.

Press twice.

2.

Select with .

3.

Press .

4.

Select with .

118 BES-941BC • BES-1241BC


5.




6.



Setting the lock stitch at the sewing start position after thread trimming

1.

Press twice.

2.

Select with .

3.

Press .

4.

Select with .

5.




6.

Press the

E N D

button.


BES-941BC • BES-1241BC 119


Speed Limit in a Short Pitch

Speed can be limited when stitching in a designated pitch.

The pitch can be designated between 0.0 and 2.0 mm in units of 0.1 mm.

The speed can be set from 400 rpm to the maximum speed available for the current frame in units of 10 rpm.

1.

Press twice.

2.

Select with .

3.

Press .

4.

Designate the stitch length to be limited with .

5.

Designate the speed to be limited with .

6.



Invalidating speed limit in a short pitch

1.

Press the button after the setting screen is displayed.

120 BES-941BC • BES-1241BC

2.




Feed Timing

The timing of needle drop and hoop movement can be adjusted according to the cloth thickness.

The value can be designated between 95 and 125 degrees in 1-degree units.

The smaller values are suitable for thick material and the larger ones are suitable for thin material. The standard value is 110 degrees.

1.


2.

Select with .

3.

Press .

4.

Designate the feed end angle with .

5.

Press the

E N D

button.


BES-941BC • BES-1241BC 121


Automatic Input Setting

Sewing data can be read from a floppy disk or a computer automatically or semiautomatically.

The following items can be selected.

Item Contents

Choose whether or not to read sewing data automatically.

Reads data manually.

Reads data from a floppy disk automatically.

Reads data from a floppy disk semiautomatically.

Reads data from a computer automatically.

Reads data from a computer semiautomatical

Choose whether or not to continue data reading from the start automatically on completion of sewing.

Discontinues data reading on completion of sewing.

Continues data reading from the start automatically on completion of sewing.

Choose whether or not to reflect the initial edit data also in sewing operations according to other data.

The initial edit data is reflected.

The initial edit data is not reflected.

1.


2.

Select with .

3.

Press .

122

4.

Choose "MANU," "AUTO," or "S-AUTO" with .

The following steps are not necessary when

Go to step 8 when you select .

Go to step 5 when you select .

is selected.



5.

Select with .

6.

Press and choose whether or not to continue data reading from the start automatically on completion of sewing.

7.

Select with .

8.

Press and choose whether or not to reflect the initial edit data also in operations according to other data.

This does not appear when "S-AUTO" is selected in step 4.

9.

For reading data from a floppy disk, insert the floppy disk into the operation panel.

For reading data from a computer, establish connection with it.

10. Press

E N D

.

11. Select the desired sewing data item with , and press .

"AUTO" or "S-AUTO" appears.

12. Press . Sewing starts.

"AUTO" or "S-AT" appears.

BES-941BC • BES-1241BC 123


13. When sewing is complete, press .

In the automatic mode, the next data is read and the machine is brought to a state of standby.

In the semi-automatic mode, the next sewing data is selected. Select the desired data with

and press .

14. To discontinue sewing by automatic input, follow steps 1 to 4 and select

. Press E N D .

124 BES-941BC • BES-1241BC

Display of Information

Information about the machine and patterns can be displayed on the screen.

Pattern Information

Detailed information about a selected pattern can be checked.

Contents of information to be displayed are as shown below.

Size of sewing data (mm)

Coordinates of embroidering start point

Coordinates of embroidering end point

Number of stitches

Number of colors

Name of data

1.


2.



3.

Press .

4.

Check information about patterns.

5.

Press E S C .

The previous screen is displayed again.

BES-941BC • BES-1241BC 125


Features of Machine

Detailed information of the machine can be checked.


Maximum moving range of flat hoop (for all heads)

Maximum moving range of flat hoop (for every other head)

Maximum moving range of cap hoop

Number of heads

Number of needle bars per head

1.


2.


3.

Press .

4.

Check information about the machine.

5.

Press

E S C

.


126 BES-941BC • BES-1241BC


Information about Versions

Information about CPU ROM version, etc. can be checked.


Panel CPU ROM version

Main CPU ROM version

Machine feed type (1: Standard machine 2: Machine which changed minor)

Machine's bridge type (W: wide bridge S: standard bridge)

Upper axis CPU ROM version

Lower axis CPU ROM version

Rotary hook type (1: earlier type 2: new type)

Interface CPU ROM version

Feed wave form table version

Feed wave form type (1: For the standard machine 2: For the machine which changed minor)

Machine's bridge type (W: wide bridge S: standard bridge)

1.


2.


3.

Press .

4.

Check information about versions.

The version is displayed by numerical figures (1 ~ 255).

Panel CPU ROM version

Upper axis CPU ROM version

Interface CPU ROM version

Machine's bridge type

Feed wave form table version

Lower axis CPU ROM version

Rotary hook type

Machine's bridge type

Main CPU ROM version

5.

Press E S C .


BES-941BC • BES-1241BC 127


128 BES-941BC • BES-1241BC



1. Operating Procedures

1-1 Power Source

1.

Turn the power on to the machine.

2.

Reset the emergency stop button.

3.

Press the power switch.

4.

A message is displayed on the LCD.

Power switch

• The alarm sounds three times and the needle bar and the presser foot move upward. Then the hoop moves to the zero point and the sewing data screen is displayed.

Note) When turning the power off and back it on again, wait for at least 10 seconds.

Emergency stop switch

1-2 Preparation for Embroidering

• Select embroidering data.

• Using the jog switches ( ), determine a position to start embroidering.

Note) An error message is displayed on the LCD if a pattern comes out of the hoop.

• Pressing starts embroidering.

• After embroidering is finished, the machine is placed in the stand-by state.

130 BES-941BC • BES-1241BC


2. Machine Stop

2-1. Stopping the Machine

Press the stop switch or operation of the machine.

S T O P

to stop the

The stop switch adopts the push-turn-lock method. If you want the machine to remain stopped, turn the stop switch clockwise while pushing it.

2-2. Resetting Machine Stop

2-3. Emergency Stop of the Machine

• When the stop switch is locked by turning it while pressing it, the message, "Release stop SW to operate!", is displayed on the operation panel.

• To reset the stop switch, turn it counterclockwise while pressing it. The knob of the switch pops up and machine stop is reset.

• Check to see that both stop switches at left and right are reset.

When the emergency stop switch is pressed, all power except that for the fluorescent lamp is turned off.

2-4. Resetting Emergency Stop

Emergency stop switch

When turning the emergency stop switch in the direction of the arrow illustrated on the switch, the knob of the switch pops up and emergency stop is reset.

Press the power switch to turn on the power again.

Power switch

BES-941BC • BES-1241BC 131


3. Measures against Thread Breakage

3-1 Remedies

1.

If embroidering is suspended due to thread breakage, the THREAD SENSOR lamp of the machine head with a thread breakage blinks.

2.

Correct the broken thread and pass it through again.

* Refer to "Chapter 1, 4-1 Upper Threading" ( Page 36) for details.

3.

Press the STOP switch or press the STEP

BACK/FWD switch in order to reset the alarm.

THREAD SENSOR lamp

HEAD switch

MENDING lamp

MENDING switch

STOP

4.

Return the hoop to a position where thread breakage occurred by pressing the STEP

BACK switch.

or

STEP BACK/FWD switch

Note) When the switch is turned for 5 stitches or more, the machine continues operation without holding the switch. To stop the machine, turn the switch to the opposite side.

5.

Press the START switch on the operation panel or the start switch located between the machine heads to resume operation.

or

132 BES-941BC • BES-1241BC


3-2 Mending

The machine head whose MENDING lamp is lit performs embroidering by the preset number stitches. When it is completed, all the machine heads start normal embroidering operation.

• The MENDING lamps except for the machine head whose needle thread has been broken are turned off.

• At this time, the machine head, whose

MENDING lamp is on, performs resewing from the step-back position while the other machine heads (with MENDING lamps off) are stopped. When resewing is completed, the other machine heads (except those halted or with bed retracted) also start embroidering.

Manual operation

The mending start and end positions can be set for each machine head using the MENDING switch on the tension plate.

The MENDING lamp is lit when the

MENDING switch of each machine head is flipped up during standby. Resewing from the step-back position to this position can be executed.

* When the MENDING switch is flipped up while the MENDING lamp is off, the lamp is turned on; when the MENDING switch is flipped up again while the MENDING lamp is lit, the lamp is turned off.

Note) The mending end position cannot be set for each machine head.

When all MENDING lamps are turned on, the mending end position will be set to the position where one of the lamps is turned off first.

Note) To cancel the mending end position, turn all the MENDING lamps are turned on (except for halted machine heads) .

BES-941BC • BES-1241BC 133


Stand by position A

No.1 Stitch No.2 Stitch No.3 Stitch

No.1 Stitch No.2 Stitch No.3 Stitch

B

No.3

Mending LED is off.

Mending LED

1.

Turn off the MENDING lamp No. 3 at the standby position A.

(The position A should be the mending end position.)

2.

Press the jog switch or backward.

to move it

Turn off the MENDING lamp No. 2 at the position B.

(The position B does not become the end position; the position A remains the end position.)

Note) When the MENDING switch of the machine head whose lamp is off is pressed:

• The MENDING lamp of the machine head is lit, and mending is executed for the machine head.

Note) When the MENDING switch of the machine head whose lamp is on is pressed:

• The MENDING lamp of the machine head goes off and mending is not excuted for the machine head.

Stand by position A

When a thread breakage error is occurring, refer to "Setting of Mending" ( Page 101) as well in order to correct missing stitches caused by a thread breakage.

134 BES-941BC • BES-1241BC


4. Jog Embroidering

BES-941BC BES-1241BC

• Jog embroidering can be used for preventing the thread from slipping from the needle at the start of embroidering.

• Jog embroidering can be executed as long as the start switch at the machine head is held down.

Note) Never apply a tape on the switch to keep jog operation for a long time. Doing so may cause damage to the machine.

5. Hoop Feed Position

• In order to ease mounting and dismounting of the embroidery hoop, another needle position can be set as a hoop feed position in the movable area additionally to the current needle position.

• In order to ease material attachment while operation is suspended, the hoop can be moved to the feed position at any time by the hoop feed switch.

• The hoop can also be moved to the feed position automatically after embroidering is finished.

Refer to "Hoop Automatic Retract" on Page 107 for details.

BES-941BC • BES-1241BC 135


6. Area Check

6-1 External Tracing

• If the check switch is pressed in other cases than "area over", the rectangular outline of the pattern is traced.

Embroidering start position

6-2 Automatic Hoop Movement in Area

0.1mm

(Example)

0.1mm

Note) The outline of pattern can be checked in rectangle or octagon by setting "Checking embroidery area" in "Enviromment 1".

Embroidering area

• If "area over" is displayed, press the check switch. The hoop automatically moves inside the embroidering area, where the pattern is set, at the nearest position.

Note) After finishing the movement inside the area by this function, execute external tracing. Then, check that the needle and the presser foot do not interfere with the hoop before starting embroidering.

136

Embroidering area

If the pattern is not held in the embroidering area as shown below, the hoop cannot move into the area.

Enlarge the embroidering area on the operation panel.



7. Jog Switches

7-1 Hoop Movement to Start Position

The hoop can be moved before starting embroidering and the start position can be set arbitrarily.

BES-941BC • BES-1241BC 137


7-2 Inching Mode during Embroidering (Forcible Hoop Movement)

Note) • Moving the frame greatly in the inching mode may cause an interference with the machine.

Pay utmost care in the inching mode.

• Although the distance of the frame moved in the inching mode is stored even after turning OFF the power, if the power is turned ON again and sewing is started, the pattern may be embroidered in a different position. Be sure to use the inching mode appropriately.

1.

Press the while pressing the

S T O P switch in order to select the inching mode.

2.

Press the jog switch and the hoop moves to the direction of the pressed switch.

Note) • Note that the forcible hoop movement will produce deviation of embroidering by the amount.

• If the hoop and material are deviated from each other during embroidering, correct it by using the jog switches.

3.

Pressing the "END" switch resets the inching mode.

E N D

4.

Press the "START" switch restarts embroidering.

138 BES-941BC • BES-1241BC


8. Detection of Zero Point

After the zero point is detected, the hoop returns to the initial point

1.

Press

0

SPACE

while pressing

S T O P

with the machine stopped.

Initial screen

2.

The hoop moves and the zero point is detected.

Temporary stop screen

3.

The initial screen is displayed again.

BES-941BC • BES-1241BC 139


140 BES-941BC • BES-1241BC



CAUTION

Turn off the power switch before starting maintenance.

Failure to do so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries.




• Keep the machine clean at all times to prevent machine trouble.

• Keep the machine clean.

Remove dirt with a soft, dry cloth. If necessary, clean with the detergent-soaked cloth, then wipe off the detergent with a cloth dampened with (hot) water.

• Caution

Never use benzene or thinner for cleaning the machine.

1. Cleaning

1-1 Cleaning and Lubrication of Rotary Hook

Lubricate these points.

• Clean rotary hooks daily using the brush provided at the time of lubrication. If a rotary hook is too dirty, cleaning with a compressor (compressed air) is recommended.

• If thread breakage or rotary hook noise occurs during embroidering, lubricate the race of the rotary hook.

Note) • Use the dropper provided to supply oil. Use BROTHER's embroidery machine oil (equivalent to Nisseki

Sewing Lub No. 10).

• Supply a proper amount of oil. Any excess may stain fabrics, etc.

142 BES-941BC • BES-1241BC

1-2 Cleaning of Needle Plate


Broken threads left around the movable or fixed knives or the lower thread holding plate may result in thread trimming failure or parts damage. Clean them once a month.

Remove broken threads from this section.

1-3 Cleaning of Lower Shaft Module Fan

Remove lint from lower shaft module fan and its surroundings once a month using a pair of tweezers, etc.

BES-941BC • BES-1241BC 143


2. Oiling

To extend the machine's service life, supply oil to the following places at regular intervals.

(Note) • When oiling, be sure to supply Brother's machine oil (Nisseki Sewing Lube #10 or the equivalent) using the dropper.

• Excessive oiling may cause the material to be stained.

2-1 Head

BES-941BC

Supply oil to the needle bars (18 positions) once a day as shown on the left.

BES-1241BC

Supply oil to the needle bars (24 positions) once a day as shown on the left.

144 BES-941BC • BES-1241BC


BES-941BC

Lubricate the following part indicated by the arrow ("clearance" between the connecting rod and the needle thread take-up bearing) once a week.

(Note) • In lubrication, select needle bar 9 and remove arm cover L to check the lubrication area. Be sure to wipe off excessive oil spilt at the lower part of the arm.

Connecting rod Thread take-up bush

Connecting rod

Arm cover L

BES-1241BC

Lubricate the following part indicated by the arrow ("clearance" between the connecting rod and the needle thread take-up bearing) once a week.

(Note) • In lubrication, select needle bar 12 and remove the head cover to check the lubrication area. Be sure to wipe off excessive oil spilt at the lower part of the arm.

Connecting rod Thread take-up bush

Connecting rod

Head cover

BES-941BC • BES-1241BC 145


3. Greasing

To extend the machine's service life, supply grease to the following places at regular intervals.

(Note) • When greasing, be sure to use the grease tank BR2 (black) provided with the machine.

• For overhauling, contact your distributor or refer it to trained experts.

3-1 Head

Grease two places indicated by the arrow once a month.

y q w q r e

BES-941BC

1.

Remove two connectors from the rear of the needle bar case.

2.

Loosen four bolts q, and remove the needle case w.

3.

Loosen three screws e, and remove the presser foot guide plate r.

4.

Loosen two bolts t, and remove the arm cover L y. t u w

5.

Grease all the grooves of the thread takeup cam u and the work clamp cam i. i

* After greasing, assemble in the reverse order.

(Note) • When assembling the needle bar case w, place it on the machine and turn the change pulley !0 behind the cover o at right. Check that it is engaged, and then tighten the bolts.

• When attaching the presser foot guide plate r, move the presser foot up and down by the retracting lever to check that is it not distorted.

o r

!0

BES-941BC • BES-1241BC 146

w t q

Chapter 7 Maintenance y t r u i

BES-1241BC

1.


2.

Loosen four screws q, and remove the head cover w, and loosen two screws e and remove the head cover R r.

(Note) Because the heads No.1 and No.2 have the head covers R and L respectively, remove both the the covers when greasing.

3.

Loosen four bolts t, and remove needle bar case y.

4.

Loosen three bolts u, and remove presser foot guide plate i. e

5.

Grease all the grooves of the thread takeup cam o and the work clamp cam !0.

!0

o y i

!2

!1


(Note) • When assembling the needle bar case y, place it on the machine and turn the change pulley !2 behind the cover !1 at right.

Check that it is engaged, and then tighten the bolts.

• When attaching the presser foot guide plate i, move the presser foot up and down by the retracting lever to check that is it not distorted.

BES-941BC • BES-1241BC 147


Grease the places indicated by the arrow once in six months.

(Note) When greasing, be sure to use the grease tank BR2 (black) provided with the machine.

u i u

!1

!2

y t o

!3

!6

w q

!0

o e r

BES-941BC

1.


2.

Loosen four bolts q, and remove the needle case w.

3.

Loosen three screws e, and remove the presser foot guide plate r.

4.

Loosen two screws t, and remove the arm cover L y.

5.

Loosen four screws u, and remove the head cover i.

6.

Loosen two bolts o, and remove the cap eaves guide

!0.

7.

Loosen three bolts !1, and remove the wiper solenoid assembly

!2.

!8

!3

!3

!3

!3

!3

!4

!7

!5

!3

8.

Remove screws

!3 (7 pcs) indicated by arrows. Apply grease to the tapped holes with the syringe provided and tighten the screws again.

Also apply grease to presser bar spring

!4, the end of presser bar guide bracket !5, presser bar metals U

!6 and D !7, and jump rotary shaft !8. w

148 r

@0

!9


(Note) • When assembling the needle bar case w, place it on the machine and turn the change pulley

@0 behind the cover !9 at right.


• When attaching the presser foot guide plate r, move the presser foot up and down by the retracting lever to check that is it not distorted.

For more information, refer to the illustration on page 146.


!1

!2

w q

!8

o

!3

!3

!3

!3

!3


!3

y

!6

e

!0

t r u i

BES-1241BC

1.


2.

Loosen four screws q, and remove the head cover w, and loosen two screws e and remove the head cover R r.

(Note) Because the heads No.1 and No.4 have the head covers R and L respectively, remove both the the covers when greasing.

3.

Loosen four bolts t, and remove the needle case y.

4.

Loosen three screws u, and remove the presser foot guide plate i.

5.

Loosen two bolts o, and remove the cap eaves guide

!0.

6.

Loosen three bolts !1, and remove the wiper solenoid assembly

!2.

!4

!7

!5

!3

7.

Remove screws

!3 (7 pcs) indicated by arrows. Apply grease to the tapped holes with the syringe provided and tighten the screws again.

Also apply grease to presser bar spring

!4, the end of presser bar guide bracket

!5, presser bar metals U

!6 and D !7, and jump rotary shaft

!8. y i

@0

!9


(Note) • When reattaching the head cover w after its removal, move the needle bar case to the needle bar 6 position.

• When assembling the needle bar case y, place it on the machine and turn the change pulley @0 behind the cover !9 at right.


• When attaching the presser foot guide plate i, move the presser foot up and down by the retracting lever to check that is it not distorted.

For more information, refer to the illustration on page 147.

BES-941BC • BES-1241BC 149


3-2 Feed Guide Section

Check the X-feed linear guides (2 positions) and the Y-feed linear guides (one each on the right and left).

(Note) When greasing, be sure to use the grease tank 30 provided with the machine.

q w e t

Procedure

1.

Loosen 12+2 screws q, and remove the X- feed cover w.

2.

Remove the X-feed cover e.

3.

Loosen eight screws r, and remove the Y- feed cover t from the right and left. t r

4.

Grease the X-feed linear guides (3 positions), the Y-feed linear guides (one each on the right and left), and the linear guide inside the No. 3 bed. Slide the guide to spread grease entirely.


150 BES-941BC • BES-1241BC



CAUTION

Turn off the power switch and pull out the plug before starting adjustment. Failure to do so may start the machine unintentionally through an accidental activation of the START switch, resulting in bodily injuries.

• Adjustment

If adjustment should be made while the power switch is turned on, pay special attention to your safety.

Maintenance and inspection of the machine should be conducted only by trained engineers.

1. Adjusting Needle Bar Height

180° y t u e r w q q

10.8mm

y t u

Tighten the screw u so that the clearance can be even.

i

Do not hit this section.

i

BES-941BC • BES-1241BC 152


1.

Dismount the pulley cover and turn the pulley B q until the pulley scale indicates 180˚ and the needle bar is set at the lowest position. (The pulley B " " mark and the stop mark " " are aligned.)

2.

Insert the positioning bar w into the hole of the pulley q and fix the drive shaft.

Note) Turn the pulley B securely in the clockwise direction to eliminate a backlash.

3.

Loosen the needle bar clamp set screw e and the bolt u of the top dead center stopper t when the needle tip is positioned 10.8 mm above the center of the rotary hook shaft. Adjust the position of the needle bar thread guide so that the set screw r on it is turned to the right by 25 ~ 30˚. Tighten the needle bar clamp set screw e securely.

Note) When tightening the needle bar clamp set screw e, the hole in the needle bar guide should face the front.

4.

After adjustment is finished, remove the positioning bar w.

5.

Set the needle bar at the highest position (where the pulley B indication mark " " and the cover indication mark " " are aligned). Lightly press the top dead center stopper t toward the cushion rubber y, and tighten Socket head bolt for top dead center stopper u while pressing down the needle bar clamp so that it faces the front. (Tightening torque: 0.78 N.m)

Note) • Make sure that the top dead center stopper does not hit the needle bar guide rail i at this time.

• When tightening the upper dead point stopper bolt u, insert the longer side of the attached wrench into the bolt and tighten it by using the shorter side.

Excessive tightening may make the needle bar movement sluggish.

BES-941BC • BES-1241BC 153


When using the bottom dead center gauge

180° w q q i u o

Cutting section e r i u t y o

10.8mm

e

Cutting section

Tighten the bolt o so that the clearance can be even.

!0

Do not hit this section.

!0

154 BES-941BC • BES-1241BC


1.

Turn the pulley B q until the scale of pulley B q indicates 180˚ (where the pulley B indication mark " " and the stop mark " " are aligned) and the needle bar is set at the lowest position.

2.

Insert the positioning bar w into the hole of the pulley B q and fix the drive shaft.

Note) Turn the pulley B securely in the clockwise direction.

3.

Insert the bottom dead center gauge e into the rotary hook r.

4.

Loosen the screw y of the needle bar clamp t and the top dead center stopper bolt o, then move the needle bar up and down until the needle tip touches the gauge e lightly.

Note) • The needle point should touch the gauge at a place other than the cutting section.

• The bottom dead center gauge should be set in or removed from the rotary hook with its cutting section facing upward.

5.

Tighten the screw y of the needle bar clamp t securely.

6.

After adjustment is finished, remove the positioning bar w.

7.

Set the needle bar at the highest position (where the pulley B indication mark " " and the cover indication mark " " are aligned). Lightly press the top dead center stopper u toward the cushion rubber i, and tighten Socket head bolt for top dead center stopper o while pressing down the needle bar clamp so that it faces the front. (Tightening torque: 0.78 N.m)

Note) • Make sure that the top dead center stopper u does not hit the needle bar guide rail !0 at this time.

• When tightening the upper dead point stopper bolt o, insert the longer side of the attached wrench into the bolt and tighten it by using the shorter side.

Excessive tightening may make the needle bar movement sluggish.

BES-941BC • BES-1241BC 155


2. Replacing (Attaching) Rotary Hook

2-1 Replacing Rotary Hook

Lower shaft

1.

Turn the power switch off.

2.

Tighten the screw q of the rotary hook cutting section to fit to that of the lower shaft w.

3.

When mounting, press it inward until it stops.

Note) After replacing rotary hooks, refer to "4. Adjustment of Timing Between Needle and Rotary Hook (Page 158)" and adjust the timing.

q

Cutting section

2-2 Adjusting the clearance between the rotary hook and the inner rotary

1.

The clearance between the rotary hook q and the inner rotary hook stopper w should be enough to pass the thread through the clearance easily.

q

1-1.5mm

2.

Loosen the two screws e to adjust the clearance between the rotary hook and the inner rotary hook stopper to 1-1.5mm.

3.

Lower the needle. Make sure that the inner rotary hook stopper w is inserted into the center of the groove of the rotary hook q. w e

Notes) • If the inner rotary hook stopper does not come to the center of the needle, the needle or the needle bar may be bent. If both are not bent, replace the inner rotary stopper with a new one.

• If there is no problem with the needle or the needle bar, set the needle to its bottom dead center to check if the needle comes to the center of the shaft of the outer rotary hook.

If it does, move the needle plate base to the left and right to center the needle.

(At this time, re-adjust the thread trimmer.)

If it does not, adjust the needle penetration position.

• If the two clamping bolts securing the inner rotary hook stopper are loosened, the thread trimming guide plate moves along with it. Therefore, be sure to reinstall the thread trimming guide plate properly after adjusting the inner rotary hook stopper.

(Pull the plate to the forefront and secure it.)

156 BES-941BC • BES-1241BC


3. Adjustment of Clearance Between Needle and Rotary Hook

o

9 8 7 6 5 4 3 2 1 q

1.


2.

Select the needle bar No. 1 q.

The illustration at the left shows the case of BES-

941BC. For BES-1241BC, the No. 12 needle becomes needle bar No.9 o. e w

3.

Remove two flat screws w and dismount the needle plate e.

2mm

2mm r t

0.3~0.5mm

i u y

4.

Turn the pulley so that the pulley indication mark " " and the stop mark "NH " are aligned.

5.

Turn the rotary hook t manually so that the rotary hook's point and the center of the needle r are aligned.

6.

Loosen the set screw u on the side of the bed y.

7.

Turn the eccentric screw i on the left side of the bed y using a regular screwdriver and adjust a clearance between the needle and the rotary shaft to 0.3 ~ 0.5 mm.

8.

Adjust the clearance between the needle and the rotary hook's point to 0.3 ~ 0.5 mm at the needle bar No. 9 o (No. 12 needle for

BES-1241BC).

Note) If the clearance between the needle and the rotary hook point is not within the range of

0.3 ~ 0.5 mm, adjust again as described in the step 4 until the needle bar No. 1 or No. 9 (No.

12 for BES-1241BC) whichever has the smallest clearance may not be interfered by the rotary hook point.

BES-941BC • BES-1241BC 157


4. Adjustment of Timing Between Needle and Rotary Hook

100˚

1.

Turn the power switch on.

2.

Check that the machine pulley B q is at the stop position (at 100˚ of the scale). If not, turn the pulley B q until it comes to the stop position.

q

3.

While the machine is at the stop position

(when the initial screen or halt screen is displayed), press the while holding down the . The rotary hook of each head

S T O P turns to a currently set alignment position for adjustment of the rotary hook.

158

140˚

Rotary hook's point

150

200

4.

Turn the pulley B q manually until the relationship between the needle point and the rotary hook's point can be easily checked (at around 140° of the scale).

5.

Press the STEP BACK/FWD switch to move the rotary hook for each head to adjustment.

• STEP BACK

For rotating the rotary hook little by little in the clockwise direction

• STEP FWD

For rotating the rotary hook little by little in the counterclockwise direction

Make this adjustment for each machine head so that the needle and the rotary hook's point can fit with each other.



6.

After timing adjustment the is finished for each head, set the pulley B q to the stop position (at 100˚ of the scale) and press

. The machine enters the standby state.

The adjustment of the rotary hook is completed and the timing is stored. The rotary hook returns to the stop position accordingly.

5. Adjustment of Presser Foot Height

q w material

1.


2.

Select the needle bar No. 1.

3.

Loosen the screw w of the presser foot q, and adjust the presser foot q until it comes above the cloth top surface when it is at the alignment position (where the pulley B indication mark " " and the cover indication mark " " are aligned).

Note) When the presser feet have been adjusted in height, check that each needle lowers to the center of the presser foot hole.

BES-941BC • BES-1241BC 159


6. Adjustment of Thread Trimmer

6-1 Attaching the Fixed Knife

Attach the fixed knife q to the pin w and move it backward to the end of the slot, then mount it there.

q w

6-2 Checking the Movable Knife Position

1.

Turn the power switch on and wait until the hoop home position detection is finished.

2.

Press the stop switch in order to ensure maximum safety during adjustment.

e w q

Toward this side

Adjust the movable knife position in this state.

3.

Loosen two bolts e that connect the thread trimmer connecting rods B q and C w.

160 r t

1mm

4.

Tighten the two bolts e until the triangle part of the movable knife r is projected by

1 mm from the fixed knife t.

Triangle part of movable knife


e w

* Bad example

Chapter 8 Adjustment q

Toward this side

* Precautions for tightening the two bolts e:

• The thread trimmer connecting rod B q has a backlash of about 0.1 ~ 0.2 mm back and forth. Tighten the two bolts e while pulling them forward by the backlash amount.

• Tighten the two bolts e so that the thread trimmer connecting rods B q and C w are positioned in a straight line.

r t

5.

After adjustment is finished, reset the stop switch.

"Release stop SW to operate!" disappears.

1mm

6.

Turn the power switch off once, then on again. Check that the clearance between the movable knife r and the fixed knife t is 1 mm.

7.

When adjusting again, follow the step 2 and after.

BES-941BC • BES-1241BC 161


7. Adjusting the Belt Tension

The belt Tension is adjusted to the optimum tension at the time of shipment from the factory.

However, as the belt is used,it becomes run in and may loosen around the machine pulley and motor pulley . Use the following procedure to check the belt tension.

q w

8 mm of deflection in the belt

9.8 N of pressure w slot e

Place a gauge against the belt q, loosen the nut w, and then turn the nut e to move the slot to the appropriate position so that there is 8 mm of deflection in the belt q when 9.8 N of pressure is applied.

The machine operating direction is counterclockwise when seen from the machine pulley end.

162 BES-941BC • BES-1241BC


8. Thread Wiper Adjustment

!0

u i

Align w q e r u t y

BES-941BC o i Needle y

1.

Move solenoid arm q in the direction of the arrow with your finger. Loosen three bolts e and adjust thread hook w for smooth movements.

2.

If there is a difference in motion between needle bars No. 1 and No. 9 (No. 12 for BES-1241BC), loosen four screws r and make an adjustment by moving thread presser base t in the direction of the arrow.

Make sure that no interference will occur when pressure foot y is raised by the solenoid.

3.

Move finger guard plate u up and down, and align the top of finger guard i with the tips of the needles.

4.

After the above steps are complete, check thread hook w for smooth movements.

If the thread hook does not move smoothly, apply grease (Grease Tank BR2 (black)) to the gray part of thread guide solenoid base !0 and check its movements.

Note) • Care should be taken if the finger guard is inclined. If the finger guard in such a state is pushed excessively toward the needle at the time of color change, it may interfere with the presser foot.

• Then make an adjustment in the crosswise direction by sliding bolt o of finger guard i.

BES-941BC • BES-1241BC 163


164 BES-941BC • BES-1241BC



Code Error Messages Error Measures

E-00

E-01

E-02

E-03

E-04

E-05

E-06

E-07

E-08

E-09

E-0A

E-0B

ERROR 00 No error occurs.

This is not usually displayed.

ERROR 01

Overtravel

Stop SW was pressed during home positioning

Zero positioning is out of range

Needle stop position error

Either motor of main shaft, X- or Y-axis, or lower shaft has locked.

Overtravel occurs during home position detecting movement.

The stop switch is pressed during home position detecting movement.

Zero detecting movement out of range

Needle stop position error


Turn the power off and on once. If the same error occurs again, the area sensor is faulty.

Press the

S T O P

or turn on the F/B switch on the head to either side to restart the home position detecting movement again.

Turn the power off and on once. If the same error occurs again, the home position sensor is faulty.

Adjust the pulley stop position (100 degrees) above the needle and press the

S T O P

or turn on the F/B switch on the head to either side.

Needle bar case position error Needle bar case position error This is not usually displayed.

Needle case lock

X-axis home position error

Thread breakage error

Needle bar case lock

X-axis home position detection error

Thread breaking error

Press the

STOP

or turn on the F/B switch on the head to either side. If the same error occurs again, the color change mechanism is faulty.

Stop while needle bar case transferring

Stop switch or emergency switch was pressed while the needle bar case is traveling.


Turn the power off and on once. If the same error occurs again, the X-axis mechanism is faulty.

After passing through the thread, press the

S T O P

F/B switch on the head to either side.

or turn on the

ERROR 0B Stop or emergency stop during sewing This is not usually displayed.

E-0C

E-0D

ERROR 0C

ERROR 0D

Insufficient bobbin thread

The machine does not return to the home position.


Mending finish



E-0E ERROR 0E

E-0F

E-14

E-15

E-16

E-17

E-18

E-1A

E-1B

E-1C

E-1D

E-1F

E-21

E-22

E-23

ERROR 0F

Y-axis home position error

Press

ERROR 16

for reatart.

Undefined error This is not usually displayed.

Y-axis home position error

Turn the power off and on once. If the same error occurs again, the Y-axis mechanism is faulty.

Stop error during SSP processing (when pressing the stop key while the hoop is moving)

Needle with specified number is out of movable area.

Hoop movement restarts if you press


.

Speed Vol. No. is out of range.


ERROR 17

X-axis stepping motor connector error

X-axis stepping motor connector error

ERROR 1A Destination coordinates error

Turn the power off and on once after checking to see that the connector of the X-axis stepping motor is properly connected.


ERROR 1B

Restart perimeter

Stop while transferring to next repeat pattern

The machine has reached the mending stop position.


The machine stops during mask tracing.

The machine stops while the needle is moving between patterns during repeat sewing.

Tracing is cancelled if the

S T O P

key is pressed when the machine is stopped during mask tracing. Press the key to continue tracing.

This is displayed when the stop switch is pressed while the hoop is moving. Press the to move the hoop again. (It is necessary to press the again to start sewing.)

Presser foot down error

Area over

Area over

Area over

Errors E-1C and E-1D are not displayed due to mechanical problems.

Presser foot down error while searching for home position just after the power is turned on.

Press the

S T O P

or turn on the F/B switch on the head to either side. If the same error occurs again, adjust the presser foot switch.

Hoop overhang(+X)

Hoop overhang(+Y)

Pattern or the needle position is out of the embroidering area.

Reset the embroidering area on the panel or move the hoop to the sewable position.

Hoop overhang(+X, +Y)

166 BES-941BC • BES-1241BC


Code

E-24

E-25

E-26

E-27

E-28

E-29

Error Messages

Area over

Area over

Area over

Area over

Area over

Area over

E-2A Area over

E-2B Area over

Error

Hoop overhang(-X)

Hoop overhang(+X, -X)

Hoop overhang(-X, +Y)

Hoop overhang(+X, -X, +Y)

Hoop overhang(-Y)

Hoop overhang(+X, -Y)

Hoop overhang(+Y, -Y)

Hoop overhang(+X, +Y, -Y)

Measures

E-2C Area over

E-2D Area over

E-2E Area over

E-2F Area over

E-31 Area over

E-32 Area over

E-33 Area over

E-34 Area over

Hoop overhang(-X, -Y)

Hoop overhang(+X, -X, -Y)

Hoop overhang(-X, +Y, -Y)

Hoop overhang(+X, -X, +Y, -Y)

Needle overhang(+X)

Needle overhang(+Y)

Needle overhang(+X, +Y)

Needle overhang(-X)

Pattern or the needle position is out of the embroidering area.

Reset the embroidering area on the panel or move the hoop to the sewable position.

E-36

E-38

Area over

Area over

Needle overhang(-X, +Y)

Needle overhang(-Y)

E-39 Area over Needle overhang(+X, -Y)

E-3C

E-40

E-41

E-42

E-43

E-A1

E-A2

E-A3

E-A4

E-A5

E-A6

Area over Needle overhang(-X, -Y)

Remove unused presser foot, or it may be damaged

The status of presser foot is issued as an alarm when every second machine is used.

This is displayed when the every other head control is selected (and also when the power is turned on). Remove the presser foot of the retreating head and press the return key .

This function is not supported.

Turn off the power

Invalid start-up error Turn the power off and on once.

ERROR 42

Slave I/F EEPROM read error

Main(Z) motor lock

XY movement error

Slave I/F EEPROM read error

Spindle motor lock

Press the side.

S T O P

or turn on the F/B switch on the head to either

Turn the power off and on once. If the same error occurs again, the main PC is faulty.

Press the

S T O P

or turn on the F/B switch on the head to either side. If it occurs frequently, the main shaft mechanism is faulty.

Main(Z) PCB temperature is too high

Main PC board temperature too high

Main(Z) motor voltage is too low Spindle motor voltage too low

Main(Z) motor voltage is too high

Spindle motor voltage too high

ERROR A5 Spindle motor CPU error

ERROR A6

Spindle motor CPU communication command error


BES-941BC • BES-1241BC 167


Code

E-A7

E-A8

Error Messages

ERROR A7

ERROR A8

Error

Spindle motor CPU send/receive error

Spindle stop position signal error

Measures


Adjust the pulley stop position (100 degrees) above the needle and press the

S T O P

. If the error occurs frequently, the parts related to the main shaft stop position sensor are faulty.

E-A9 Spindle CPU parameter error

E-B0 Lower shaft CPU error

E-B1 Thread jammed in rotary hook

E-B2 Hook motor origin point error

Spindle CPU parameter error

Lower shaft CPU error

Thread tangle in rotary hook

Hook motor origin point error


Check to see that no lint is tangled in the rotary hook and press the

S T O P

or turn on the F/B switch on the head to either side.

E-B3 Hook motor standby position error Hook motor standby position error

The rotary hook may be rotated forcefully. Press the or

S T O P turn on F/B switch on the head to either side to cancel the error. If the same error occurs again, the lower shaft sensor is improperly adjusted.

E-B4 Hook motor standby position error Hook motor motor mode error

E-B5 Hook motor communication error Hook motor communication error

E-B6 Hook motor parameter error Hook motor parameter error


E-B7

E-B8

E-B9

E-BA

E-BC

E-BD

E-BE

E-BB, BF

E-C1

E-C2

E-C3

E-C4

E-C5

E-C6

E-C7

E-C8

E-C9

E-CA

E-CB

Hook motor overheat error

Hook motor overcurrent error

Turn off the power

Thread trimming motor origin point error

Power supply frequency error

No power error

Lower shaft flash memory error

Lower shaft version-up error

ERROR BB, BF

ERROR C1

Wiper out error

ERROR C3


ERROR C5

ERROR C6

ERROR C7

ERROR C8

Embroidering start error

ERROR CA

Spindle rotation speed error

Hook motor overheat error

Hook motor overcurrent error

Thread trimming motor zero point error

Power supply frequency error

No power error

Lower shaft flash memory error

Lower shaft version-up error

Lower shaft motor undefined error

Turn the power off and on once. If the same error occurs again, the lower shaft motor is faulty.

Turn the power off and check the thread trimmer and turn the power on again. If it occurs again, the thread trimmer is faulty.

Turn the power off and on once. If the same error occurs again, the power PCB or power supply is faulty.

It may usually occur momentarily when turning off the machine. If it occurs when the machine is on, it is a power failure detection error.

Turn the power off and on once. If the same error occurs again, the main PCB is faulty.

Press the

S T O P

or turn on the F/B switch on the head to either side to cancel the error and upgrade the version again.


Area over during embroidering

Wiper out error

Set the embroidering area again on the panel.

If the wiper is tangled with a thread, remove it. Press the

S T O P or turn on the F/B switch on the head to either side.


Embroidering data buffer empty


Lower shaft error

Hook motor origin point error

Press the or turn on the F/B switch on the head to ei-

S T O P ther side. If the same error occurs again, adjust the presser foot switch.

Measured voltage value could not be received form the lower shaft motor CPU.

Voltage value could not be transferred to the lower shaft motor CPU.


The machine may be being tested in the BC test mode. Exit the test mode or turn the power off and on once. If the same error occurs again, the main PCB is faulty.

Check the operation of the main shaft brake and the stop position of the main shaft (100 degrees).

Embroidering start error


No sewing permisson

Spindle rotation speed error

Press the

S T O P

or turn on the F/B switch on the head to either side to cancel the error and press the . If the same error occurs again, there is a possibility that the spindle is overloaded.

168 BES-941BC • BES-1241BC


Code Error Messages Error Measures

E-CC

E-CD

E-CE

E-CF

E-D0

E-D1

E-D2

E-D3

E-E1

E-E2

E-E3

E-E4

E-E5

E-E6

E-E7

E-E8

E-E9

E-EA

E-EB

E-EC

E-ED

E-EF

ERROR CC

ERROR CD

Cylinder bed position error

ERROR CF

Power PC board error

Cooling fan motor stop

Power voltage upper limit error

Power voltage lower limit error

Speed command can not be received.

Cylinder bed position error

Rated voltage value could not be received from the lower shaft motor CPU.

Power PC board error

Cooling fan motor stop B Tum the power off.

Power voltage upper limit error

Power voltage lower limit error


Secure the bed. If the bed is secured, the bed sensor position may be faulty. Readjust it.


Turn the power off and on once. If the same error occurs again, the power PCB is faulty.

Turn off the power and check the fan harness. Turn on the power again. If the same error occurs again, the fan or the power PCB is faulty.

(1) The voltage setting is improper. -> Set it again.

(2) Press the

S T O P

or turn on the F/B switch on the head to either side. If the same error occurs again, the power

PCB or the power supply is faulty.

X-axis pulse motor overcurrent stop Turn off the power

Y-axis pulse motor overcurrent stop Turn off the power

X-axis pulse motor overcurrent stop

Y-axis pulse motor overcurrent stop

Turn the power off and on once. If the same error occurs again, the pulse motor or the main PCB is faulty.

Exhaust fan motor stop

Hook motor error

Cooling fan motor stop A Press R.

Lower shaft communication error

Turn off the power and check the fan harness. Turn on the power again. If the same error occurs again, the fan or the power PCB is faulty.


ERROR E5

ERROR E6

Over-run error during interfacing to main PCB

CPU

Framing error during interfacing to main PCB

CPU

ERROR E7

Shuttle thread entanglement automatic reset

Parity error during interfacing to main PCB CPU


ERROR E8

ERROR E9

ERROR EA

ERROR EB

ERROR EC

ERROR ED

ERROR EF

Receiving time up error during interfacing to main PCB CPU

Send/Receive inconsistent error during interfacing to main PCB CPU

ACK code receiving error during interfacing to main PCB CPU

Send/Receive ID code error during interfacing to main PCB CPU

Send data checksum error during interfacing to main PCB CPU

Data empty error during interfacing to main PCB

CPU This is not usually displayed.

Receiving error on interface

E-F1 ERROR F1

E-F2 ERROR F2

E-F3

E-F4

E-F5

E-F6

ERROR F3

ERROR F4

ERROR F5

ERROR F6

Send time up error

Request-to-waiting time up error

Request-to-recive time up error

Receive command error

NACK code receiving error

Data requested for needle position can not be returned.

It is not receive command for the request one.

E-F7 ERROR F7

E-F8 ERROR F8

E-F9 ERROR F9

PRE code error

No applicable command

BES-941BC • BES-1241BC 169


Code Error Messages

E-FA ERROR FA

E-FB ERROR FB

E-FF ERROR FF

Error Measures

Interface receive data sum check error

Send time up error

No status is returned from spindle, lower shaft motor, or CPU.


170 BES-941BC • BES-1241BC


If there is any indication of trouble with the machine, check and correct as described in the table. If the trouble cannot be corrected, turn off the power and contact your distributor for corrective actions.


Mechanical Section

172

Problem

Thread breakage

Check Point

• Is the machine properly threaded?

• Is thread tension too high?

• Is the rotary hook assembly clogged?

• Is there thread in the bobbin?

• Is the needle bent?

• Is there a rough edge or flaw on the needle plate, rotary hook, or bobbin case that might cut the thread?

• Is the needle installed correctly (direction, angle, etc.)

• Is the presser foot in contact with the material?

• Are the thread thickness and needle size correct?

• Is a thread with right-hand twist being used? (If such a thread is used, replace with a thread with left-hand twist.)

• Is there any adhesive on the needle?

• Is the material tension too weak?

• Is there too much play between the outer rotary hook and inner rotary hook?

• Does the outer rotary hook turn smoothly?

• Is the clearance between the rotary hook stopper and the rotary hook adjusted correctly?

• Does the thread come out from the bobbin case smoothly?

Needle (presser foot) interference with embroidery hoop

• Is the embroidery hoop too small?

• Check the size and needle start position in the sewing data.

Needle breakage • Is the needle attached correctly (direction, height, etc.)?

• Is the needle bent?

• Is the rotary hook attached correctly?

• Is the timing set correctly?

• Is there any backlash with the needle bar case (back/forth and right/left)?

• Is the rotary hook stopper correctly attached to stop the rotary hook?

• Is the needle size correct and the tip sharp?

• Does the thread pass through the hole center of the presser foot?

Not embroidered properly

Machine operation abnormal

• Is the material edge caught in the machine?

(Are embroidery hoop and other related parts operating correctly?)

• Is the material stretched properly?

• Is thread tension proper?

Does the lower thread come out smoothly?

• Is any set screw of the rotary encoder loosened?

• Is any set screw of the machine pulley loosened?

• Is any set screw of the machine motor pulley loosened?

• Is embroidery data normal?

• Is the XY carriage belt loosened?



Problem

Machine operation abnormal

Check Point

• Is the XY carriage belt damaged?

• Are any set screws for the XY pulley loosened?

• Are any set screws for the coupling of the XY pulse motor loosened?

Upper shaft locks at a certain point in one cycle

• Is the thread take-up stopped due to interference with the upper case cover?

[Adjustment]

Thread take-up

Upper case cover Bolt

Needle case

Thread take-up operating lever

Loosen the hexagon socket head cap screw of the thread takeup operating lever and adjust the take-up movable range.

Tighten it securely afterwards.

• Are the needle bar clamp and the top dead center stopper positioned correctly?

Error display • Check the rotary hook of a machine head whose MENDING lamp

(green) is blinking to see if the thread is caught.

[Adjustment]

1.Take out the thread tangled in the rotary hook race so that the rotary hook can be rotated forcibly by manual operation.

2.Check that the machine pulley is set to 100˚ of the scale, and press the END switch.

[Measures]

1.If the thread end is left too long or stitching is left loosened before starting embroidering, the thread is caught in the machine and operation stops.

2.When starting embroidering, hook the thread end on the spring or hold it with a hand.

3.Leave thread of about 60 ~ 70 mm from the needle hole when starting embroidering.

• Is thread tangled in the rotary hook?

Clean the rotary hook.

• Conduct BC sensor test of the PC test mode.

If there is any failure, replace the lower shaft with a new one.

(Refer to "Replacing the Lower Shaft Module".)

Upper shaft pulley does not turn.

• Is the presser foot lifted at a retract position when the power is turned on?

Lower the presser foot for the four machine heads using the lever.

Stitches cannot be made.

• Is the needle attached properly?

• Is the timing of the needle and rotary hook correct?

BES-941BC • BES-1241BC 173


Electrical Section

Cautions

• Be sure to turn off the power of the machine and unplug the power cord before checking cable connections.

• When you check connection of the cables as instructed in this manual, also check connection and continuity between connectors.

• Carry out items described in the "Measures" section in order of appearance.

• Some checks and replacement works can be conducted only by repair people. In such cases, contact your dealer.

Symptom

The machine does not operate even if the power is turned on.

Measures

• Is the power cord of the machine plugged in?

Plug in the power cord.

• Is the connector at the rear of the control box connected?

Connect it after checking the connector number and the harness number.

• Is the connector in the control box or the power supply base connected?

Connect it after checking the types and colors of the connectors.

• Is fuse F1 or F2 on the power PCB in the power supply base blown?

Replace the fuse with a new one. If the fuse is blown again, something is faulty. Check to see if the wiring is correct. Replace the control box with a new one.

The machine does not operate even if the power is turned on.

The message, "Release stop SW to operate!", is displayed on the panel.

• Is the stop switch turned on?

Reset the stop switch.

• The message, "Is the presser foot removed?", is displayed on the machine controller when the power is turned on.

• The red LED of head 2 or 4 does not light and the presser foot remains lowered.

An overtravel error occurs.

The needle stop position error occurs.

• Is the retract bed sensor adjusted properly?

Adjust the retract bed sensor of the faulty head. (Refer to "Replacing the retract bed sensor PCB".)

• Refer to the block diagram showing cable connection and check connection from the retreat bed sensor to the main PCB.

• Check to see if the frame type is set to every other head with the machine controller.

• Is the frame within the cap frame area?

Move the frame within the cap frame area and turn on the power.

• Check to see if the signal of the X area sensor turns ON and OFF in

PORT test mode.

When the signal does not change, refer to the block diagram showing the cable connections and check to see if connection from the X area sensor to the main PCB is proper. Replace the X area sensor with a new one.

• Is the pulley manually turned and out of the stop angle?

Turn the pulley, adjust the needle at the stop position, and reset the error.

• Check the signal of the stop position sensor in the encoder test mode.

Refer to the adjustment or cable connection block diagram and check connection from the needle position detention sensor to the main

PCB. Replace the needle position detection sensor with a new one.

174 BES-941BC • BES-1241BC


Symptom

The needle stop position error occurs.

Measures

• Is the main shaft brake solenoid operating?

If not, refer to the block diagram showing the cable connections and check to see if the connections from the brake solenoid to the power

PCB and from connector P27 of the power PCB to connector P1 of the main PCB are proper.

• Check the resistance value of the main shaft brake solenoid at the connector section of the solenoid. The normal resistance value is approximately 50 .

If it is not normal, replace the solenoid with a new one. In this case, the power PCB in the control box may also be faulty. Replace it with a new one if it does not operate properly even after a new solenoid is installed.

• Are there any problems with the main shaft mechanism? (i.e., The screw of the main shaft pulley is loose.)

The needle bar case lock error occurs.

• Is the INDEX motor rotating?

If not, refer to the block diagram showing the cable connections and check to see if connection from the INDEX motor to the main PCB is proper.

Check the resistance values of pins 1 and 2 and pins 3 and 4 at the connector section of the INDEX motor. The normal resistance value is approximately 4.4 .

If it is not normal, replace the INDEX motor with a new one. Also replace the main PCB with a new one.

• Manually turn the color change pulley.

If it is abnormally heavy, adjust the color change mechanism and the needle cap case.

• Start the machine after invalidating its initial setting and operate the head solenoid in solenoid test mode.

If a certain head and the heads following it do not operate, refer to the block diagram showing the cable connections and check to see if connection of the head communication sign is proper.

• Only head 1 does not operate.

Check the communication line to head 1 and connection of the power harness for head 1.

• Do the rotary switch settings of each head PCB correspond with the numbers of each head?

If not, set them according to the head numbers.

• Start the machine after invalidating its initial setting and enter the CASE test mode. Do figures on the panel change when the color change pulley is manually turned?

If not, check to see if connection from the needle bar position sensor to connector P7 of the head PCB (1) is proper.

• Replace the needle bar position sensor (potentiometer) with a new one.

• Replace the head PCB 1 with a new one.

BES-941BC • BES-1241BC 175


Symptom

X-axis or Y-axis home position detection error occurs.

Measures

• Was the XY carriage moving?

If so, refer to the block diagram showing the cable connections and check to see if connection from the X and Y area sensor to the main

PCB is proper.

• Was the XY motor rotating?

If so, check the XY carriage mechanism.

• If the XY motor is not rotating, refer to the cable connection block diagram and check to see if connection from the XY motor to the main

PCB is proper.

The thread breakage error frequently occurs although thread is not broken.

The X-axis motor connector connection error occurs.

The main shaft motor lock error occurs.

ERROR A7 occurs.

ERROR A8 frequently occurs.

• Enter the CASE test mode and turn the thread breakage sensor pulley corresponding to each needle bar of the head with which this error occurs while switching the needle bar from number 1 in ascending order and check to see that the red LED on the head blinks.

If there is no problem, lower the thread breakage sensitivity value of the machine controller. (The standard value is 0.)

• Check connection from the thread breakage sensor PCB to the head

PCB if it does not blink.

• Replace the thread breakage sensor PCB with a new one.

• Refer to the block diagram showing the cable connections and check the connection from the two X motors on the left and right to the main

PCB.

• Enter the encoder signal mode and manually turn the main shaft pulley.

If it is abnormally heavy, the main shaft mechanism is faulty.

• Does the main shaft motor rotate at all when the error occurs?

If it does not rotate at all, check fuse F5 on the power supply PCB in the control box. Refer to the block diagram showing the cable connections and check to see if connection from the main shaft motor to the main PCB is proper. Also check connection of connectors P6 and P4 of the main PCB and connectors P19 and P12 on the power

PCB in the box, and connection from connector P11 of the power supply

PCB to the 14v terminal of the power transformer.

• Manually turn the main shaft pulley in the encoder signal test mode and check to see if the stop position signal and encoder signal are proper.

If either of the signals does not change, refer to the block diagram showing the cable connections and check to see if connection from the encoder and stop position sensor to the main PCB is proper.

• Check the CPU ROM version for the upper shaft.

If it is version A, replace it with the latest ROM of version B or later.

(PROM#4 on the main PCB)

• In the encoder signal test mode, manually turn the main shaft pulley and check to see that the stop position signal is correct.

If the signal does not change, refer to the cable connection block diagram and check to see if connection from the stop position sensor to the main PCB is proper.

176 BES-941BC • BES-1241BC


Symptom

Thread is frequently tangled in the rotary hook.

Measures



• Conduct BC sensor test of the test mode.

If there is any failure, replace the lower shaft module with a new one.

• Conduct automatic out-of-step limit measurement of BC automatic test in the test mode.

Replace the lower shaft module with a new one if there is any fault.

• Check to see if the lower shaft fan of the head with which the error frequently occurs is correctly rotating.

If the fan is at standstill, check to see if connection from the lower shaft fan to the BC PCB is proper. Replace the lower shaft fan with a new one.

• If all the lower shaft fans are at standstill, check fuse F4 on the power supply PCB in the control box.

• Is the hole next to the bed with which the error frequently occurs clogged with dust?

If so, clean it.

The lower shaft motor zero point error occurs.



• Is the lower shaft with which the error occurs rotating?

If so, check to see if connection from the lower shaft sensor PCB to the BC PCB is proper. Adjust the lower shaft sensor. Replace the lower shaft sensor PCB with a new one.

• If the lower shaft with which the error occurs is not rotating, check to see if connection from the lower shaft motor to the BC PCB is proper.

Replace the lower shaft module with a new one. Replace the BC PCB with a new one.

The lower shaft motor standby position error occurs.

• Is the rotary hook rotated manually?

This is not a fault.

• Check to see if connection from the lower shaft sensor PCB to the BC

PCB is proper. Replace the lower shaft module with a new one.

The lower shaft overheat error occurs.

• Check to see if the lower shaft fan is normally rotating. If the fan is at standstill, check to see if connection from the lower shaft fan to the BC

PCB is proper. Replace the lower shaft fan with a new one.

• If all the lower shaft fans are at standstill, check fuse F4 on the power supply PCB in the control box.

• Is the hole next to the bed with which the error frequently occurs clogged with dust?

If so, clean it.

• Check to see if connection from the thermister of the lower shaft module to the BC PCB is proper.

BES-941BC • BES-1241BC 177


Symptom

Lower shaft motor overcurrent error occurs.

Measures

• Is the red LED for the BC PCB off?

If not, refer to the block diagram showing the cable connections and check to see if the connection from the BC PCB to the main PCB is proper.

• Check to see if connection from the lower shaft motor to the BC PCB of the bed on BC PCB whose red LED is off is proper.

Replace the harness or the lower shaft module if a short circuit occurs due to line insertion.

• Measure the resistance values of pin 1 and pin 2, pin 2 and pin 3, pin 3 and pin 4, pin 4 and pin 5, and pin 5 and pin 1 at the connector of the lower shaft motor with the tester and check to see if they are approximately 2.6 .

Replace the faulty lower shaft module with a new one.

• Replace the BC PCB with a new one.

Thread trimming motor zero point error occurs.

• Is lint clogged between the travelling blades?

Remove it.

• Is the thread trimming motor operating?

If so, refer to the block diagram showing the cable connections and check to see if connection from the thread breakage sensor to the main

PCB is proper. Also adjust the thread breakage sensor PCB. (Refer to

"Replacing thread breakage sensor PCB.)

• If it is not operating, refer to the block diagram showing the cable connections and check to see if connection from the thread trimming motor to the main PCB is proper.

• Check to see if connection from connector P3 of the main PCB to connector P9 of the power supply PCB in the control box is proper.

• Check fuse F6 on the power supply PCB in the control box.

If it is blown, replace it with a new one. If it is blown again, replace the power supply PCB.

Power frequency error occurs.


• Refer to the block diagram showing the cable connection and check to see if connection from connector P26 of the power PCB in the control box to connector P7 of the power supply PCB in the power supply base is proper.

• Check fuse F3 on the power supply PCB in the power supply base.

If it is blown, replace it with a new one. If it is blown again, there is a fault somewhere in the 24v system circuit.

Wiper out error occurs.

• Does the wiper on the error head remain projected?

If the wiper is tangled with a thread, remove it. If the wiper does not return smoothly, adjust it.

• Enter the solenoid test mode and check the displayed value on the panel.

If it is not S-00, check to see if connection from the wiper sensor to the head PCB is proper. Replace the wiper sensor with a new one.

Replace the head PCB with a new one.

178 BES-941BC • BES-1241BC


Symptom

Presser foot down error occurs.

ERROR C7 occurs.

Main shaft rotation speed error occurs.

Cylinder bed position error occurs.

Power PCB error occurs.

Cooling fan motor stops.

Exhaust fan motor stops.

When all three fans in the control box stop

Measures

• Is the presser foot attached?

If not, attach it.

• Does it rise and drop immediately?

If so, adjust the presser foot sensor.

• Does the presser foot rise and make some noise for a while?

If so, check to see if connection from the presser foot sensor to the head PCB is proper. Replace the presser foot sensor with a new one.

Replace the head PCB with a new one.

• Does the presser foot move? If it does not move at all, check to see if connection from the presser foot motor to the head PCB is proper.

Replace the presser foot motor with a new one. Replace the head

PCB with a new one.

• Is the lower shaft being tested in the test mode?

If so, refer to the operation method of the test mode and exit the test mode or turn the power off once and on again.

• Turn the power off once and on again. If the same error occurs again, replace the main PCB with a new one.

• Enter the encoder signal test mode and manually turn the main shaft pulley.

If it is abnormally heavy, the main shaft mechanism is faulty.

• Refer to the block diagram showing the cable connections and check to see if connection from the main shaft motor to the main PCB is proper. Also check the connection from connectors P6 and P4 of the main PCB to connectors P19 and P12 of the power supply PCB in the box and the connection from connector P11 of the power PCB to the

14v terminal of the power transformer.

• The bed retract sensor is not adjusted properly. Adjust it properly.


• Refer to the block diagram showing the cable connections and check to see if connection from connector P4 of the BC PCB to the power supply PCB in the control box, and connection from connector P9 of the main PCB to connector P3 of the power supply PCB in the control box are proper.

• Replace the power supply PCB with a new one.

• Replace the main PCB with a new one.

• Refer to the block diagram showing the cable connections and check to see if connection from connector P5 of the power PCB in the control box to connector P1 of the power supply PCB in the power supply base, and connection from connector P4 of the power supply PCB in the power supply base to the 18v terminal of the power transformer are proper.


If it is blown, replace it with a new one. If it becomes blown again, the 24v system circuit is faulty.

BES-941BC • BES-1241BC 179


Symptom

Only cooling fan motor stops.

Measures

• Check to see if the cooling fans on the left of the main PCB and inward of the power supply PCB are rotating.

If either of them is at standstill, check to see if connection from the cooling fan which is at standstill to P20 or P25 of the power supply

PCB in the control box is proper. If they are connected properly, replace the cooling fan which is at standstill.

• Both cooling fans are rotating.

Check to see if connection from connector P16 of the main PCB to connector P10 of the power supply PCB in the control box is proper.

Replace the main PCB with a new one.

• Check to see if the cooling fan on the right side of the main PCB is rotating.

If it is at standstill, check to see if connection from the cooling fan to

P12 of the main PCB is proper. If they are connected properly, replace the faulty cooling fan.

• The cooling fan is rotating.

Replace the main PCB with a new one.

Power voltage upper or lower limit error occurs.

X-axis motor overcurrent stop occurs.

• Is the voltage set on the panel?

If not, set it according to the power supply voltage of the area where the machine is used.

• Is the tap voltage of the power transformer (terminal connection of mark tube

T) adjusted to the power voltage of the area where the machine is used?

If not, switch the tap connection.

• Check the input voltage values in the power/voltage check test mode.

Measure the power supply voltage with the tester and compare them.

If the voltage value is significantly out of the normal range (±5v or more), calibrate it with the voltage calibration in the test mode.

• When you cannot enter the test mode because this error frequently occurs, set the voltage to a relatively high value with the machine controller if it is E-D2 and to a relatively low value if it is E-D3 to avoid errors. Check and calibrate the voltage in the test mode.


• Is the power supply abnormally low because a machine with a large capacity (compressor and the like) is used?

Change the power to the other system. Use a stabilizer.

• Replace the power PCB with a new one. Replace the main PCB with a new one.

• Measure the resistance values of pin 1 and pin 2, pin 2 and pin 3, pin 3 and pin 4, pin 4 and pin 5, and pin 5 and pin1 at each connector section of two X-axis motors with the tester and check to see if they are approximately 2.1 .

Replace the faulty motor with a new one.

• Refer to the block diagram showing the cable connection and check to see if connection from the X-axis motor to the main PCB is proper.


180 BES-941BC • BES-1241BC


Symptom

Y-axis motor overcurrent stop occurs.

The following errors frequently occur.

• Lower shaft memory error

• ERROR E5 to ERROR FF

Measures

• Measure the resistance values of pin 1 and pin 2, pin 2 and pin 3, pin 3 and pin 4, pin 4 and pin 5, and pin 5 and pin 1 at each connector section of the Y-axis motor with the tester and check to see if they are approximately 2.4 .

Replace the faulty motor with a new one.

• Refer to the block diagram showing the cable connection and check to see if connection from the Y-axis motor to the main PCB is proper.



Only a certain head does not operate.

Jump solenoids and wiper solenoids of all heads do not operate.

Jump solenoid does not operate.

• Is the head out of action with either the head switch or the machine controller?

• Refer to the block diagram showing cable connections and check to see that other cables are connected to the head switch PCB and the head PCB and the head PCB properly.

• Refer to the block diagram showing cable connections and check to see if connection from connector P4 of the power supply PCB in the control box to connector P6 of the power supply PCB in the power supply base, and connection from connector P5 of the power supply

PCB in the power supply base to the 39 terminal of the power transformer are proper.


If it is blown, replace it with a new one. The 50v circuit is faulty if the fuse is blown immediately after turning on the power even after replacing the fuse.

• Check to see if connection from the jump solenoid to connector P10 of the head PCB is proper.

• Check the resistance value of the jump solenoid which does not operate with the connector section. The normal resistance value is approximately 56 .

If it is faulty, replace the solenoid with a new one. In this case, the head PCB may also be faulty. Also replace the head PCB with a new one if it does not operate properly even after replacing the solenoid.

• Refer to the block diagram showing the cable connections and check to see if connection from connector P12 of the head PCB to connectors

P7, 8, 13, 14, 15, and 16 on the power supply PCB in the control box is proper.

• Replace the head PCB with a new one.

BES-941BC • BES-1241BC 181


Symptom

Wiper solenoid does not operate.

The lower shaft PCB is faulty.

The lower shaft module is faulty.

Measures

• Check to see if connection from the wiper solenoid to connector P11 of the head PCB is proper.

• Check the resistance value of the wiper solenoid which does not operate with the connector section. The normal resistance value is approximately 28 .

If it is faulty, replace the solenoid with a new one. In this case, the head PCB may also be faulty. Also replace the head PCB with a new one if it does not operate properly even after replacing the solenoid.

• Refer to the block diagram showing the cable connections and check to see if connection from connector P12 of the head PCB to connectors

P7, 8, 13, 14, 15, and 16 on the power supply PCB in the control box is proper.

• Replace the head PCB with a new one.

1. Turn off the power of the machine.

2. Disconnect P4 and P10 of the lower shaft PCB.

If the lower shaft PCB is removed from the machine or P8 or P9 is disconnected, the lower shaft connected to other lower shaft PCB will not operate, either.

3. Turn on the power of the machine.

The E-B2 error occurs and the green LED blinks with the head corresponding to the faulty lower shaft. Turn off the pause switch of the head (flip it down) and keep flipping up the mending switch until the green LED stops blinking.

4. If there is just one lower shaft PCB, reset the LEDs of the two heads and reset the error with the STOP key on the panel or the step back key of the head.

1. Turn off the power of the machine.

2. Disconnect P1, P3, and P5 (for a fixed bed) or P2, P4, and P6 (for a retract bed) connected to the lower shaft PCB from the faulty lower shaft module.

3. Turn on the power of the machine.

The E-B2 error occurs and the green LED blinks for the bed corresponding to the faulty lower shaft. Turn off the pause switch of the head (flip it down) and keep flipping up the mending switch until the green LED stops blinking.

4. When the LED of the corresponding head stops blinking, reset the error with the STOP key on the panel or the step back key of the head.

Note:

The above operation will prohibit operation of the lower shaft connected to the faulty lower shaft PCB or the faulty lower shaft module and cause the corresponding heads to pause. This is reset when the power of the machine is turned on again. Start from the step 3 to prohibit the operation again.

182 BES-941BC • BES-1241BC



Attaching Bobbin Winder

r

!4

i w u q e

!1

!3

!0

!0

!6

!5

y t o

1.

Mount two pieces of bobbin stand L w on the thread winder stay q with nut 4 !0.

2.

Mount the thread winder assembly (set) e on the thread winder stay q with the tightening screw

!1.

3.

Mount the thread guide r with the drilling bolt set 6 x 20 !4 and nut 6 !3.

4.

Mount the spool shaft B t and pan y, spool mat u, and spool cushion i with nut 5 !5 and spring washer

!6.

5.

Insert the thread winder harness o in the 2P (No. 6) connectors on the rear of the control box.

184 BES-941BC • BES-1241BC

Winding lower thread e t i e u w q

Connection and Installation of Optional Equipment y r o

1.

Turn the power switch on.

2.

Set the bobbin q in the bobbin winder shaft w.

3.

Put the thread through the thread guide e.

4.

Wind the thread around the bobbin q several times in the direction of the arrow.

5.

Press the bobbin hold r.

Note) If the thread cannot be wound evenly, loosen the screw t and move the thread guide e right and left for adjustment.

In order to wind more threads around the bobbin, loosen the thread y and move the bobbin hold r.

6.

After winding is finished, pull out the bobbin from the bobbin winder shaft and trim the thread using the thread trimmer u.

Note) • If the thread is wound too tight and comes off from the tension disk, loosen the knob i. If the thread is too loose, tighten the knob i.

• If the circuit protector o functions, the bobbin winder motor does not rotate. Leave it for a while for cooling. Then press the circuit protector o. (The thread does not come out when the motor is not cooled enough.)

BES-941BC • BES-1241BC 185


Installing the fluorescent lamp (For BES-941BC only)

A fluorescent lamp can be installed on the BES-941BC as an option.

Fluorescent lamp: 40 W (FL-40)

Glow lamp: FG-4P

Installing the fluorescent lamp plates

e

Lines(A)

Install fluorescent lamp plate q on leg e using two 6 x 20 bolts with spring washers w.

NOTE) Align lines (A) with the mounting holes when attaching fluorescent lamp plate q using two

6 x 20 bolts with spring washers w. w q

Installing the fluorescent lamp and the reflector cap

r w e q

1.

Place reflector cap q on fluorescent lamp w.

2.

Insert two fasteners e into mounting holes r of reflector cap q. Turn fasteners e 90°

(as far as "O" position) in the direction of the arrows to fix reflector cap q to fluorescent lamp w.

3.

Insert one side of fluorescent lamp t into socket y, and insert the other side into socket u.

NOTE) Reflector cap q is provided with windows i on both sides so that the insertion sections of the lamp into the sockets come into view.

y i u q t i

186 BES-941BC • BES-1241BC

Installing the rubber cushions

e


Insert rubber cushion q into plain washer w, and then insert them into the mounting hole of fluorescent lamp e. q w

Installing the fluorescent lamp

w e

Fix fluorescent lamp q to fluorescent lamp plate e using two 6 x 30 bolts with spring washers w. q w r

NOTE) Tighten 6 x 30 bolts with spring washers w as follows:

1) Push 6 x 30 bolt with spring washer w until it is brought into contact with nut attached to rubber cushion r.

2) Turn 6 x 30 bolt with spring washer w clockwise 12 turns. (The tightening torque is approximately 88 N•cm.) w

BES-941BC • BES-1241BC 187


Removing the rear covers

y w q r t e

Installing the fluorescent lamp cable

1.

Remove four bolts w fixing bridge harness cover q, and remove the cover.

2.

Remove four bolts r fixing side cover LB e, and remove the cover.

3.

Remove four bolts y fixing table cover 4L t, and remove the cover. w q

1.

Insert two cord clamps 19P7 q into the mounting holes of leg assembly w.

2.

Clamp cable e with two cord clamps 19P7 q and insert its end into hole of leg assembly w. e r 3.

As shown in the figure on the left, connect the terminal of fluorescent lamp harness assembly r to transformer 255 VA

assembly 1

t along the mark tube. t r

4.

Clamp fluorescent lamp harness assembly r with five cord clamps 19P7 y on leg assembly w, and insert its end into hole of leg assembly w.

5.

Reinstall the removed covers.

t y

188 BES-941BC • BES-1241BC


Removing the cover LE

e t

1.

Remove rubber cap q and then seal w.

2.

Remove five setscrews e (3 upper screws and 2 lower screws). Remove cover LE r from leg t. w q r

Clamping the fluorescent lamp cable

q e

1.

Pull two fluorescent lamp cables w out of the hole of leg q.

2.

Clamp fluorescent lamp cables w and other cables with two cord clamps e. w

BES-941BC • BES-1241BC 189


Installing the fluorescent lamp switch

w

1.

Fit the projection of switch head q to the notch of cover LE w. Insert switch head q into cover LE w.

2.

Fix switch head q to cover LE w with provided ring e. e y t q r

3.

Attach switch r to switch head q while lock lever t of switch r faces left.

4.

Turn lock lever t to secure it. Attach stopper y. i 5.

Connect cable u of the switch to fluorescent lamp cable i, and clamp it with cord clamp o.

6.

Reinstall cover LE on the leg.

u o

190 BES-941BC • BES-1241BC

INSTRUCTION MANUAL

BROTHER INDUSTRIES, LTD.

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

Printed in Japan

155-941.C41

S93941-102

2000.08.H (1)

Brother BES 941BC, BES 1241BC embroidery machine Instruction manual

Assistant Bot

INSTRUCTION MANUAL

Please read this manual before using the machine.

Please keep this manual within easy reach for quick reference.

NINE NEEDLE FOUR HEAD EMBROIDERY MACHINE

TWELVE NEEDLE FOUR HEAD EMBROIDERY MACHINE

SAFETY INSTRUCTIONS

Indications

Symbols

Environmental requirements

Installation

Installation

Sewing

Cleaning

Maintenance and inspection

CAUTION

CAUTION

Before Starting Operation

Protecting data in floppy disks

Procedure of Reading This Manual

Explanation of models

Configuration of this manual

Screen Composition

Initial Screen

Contents

Chapter 1 Preparation of Embroidery Machine

Chapter 2 Embroidering Procedures

Chapter 3 Selection of Data and Embroidering

Chapter 4 Editing of Embroidering Data

Chapter 5 Setting

Chapter 6 Operation of Machine

Chapter 7 Maintenance

Chapter 8 Standard Adjustment

Chapter 9 Error code list

Chapter 10 Troubleshooting

Connection and Installation of Optional Equipment

Chapter 1

Preparation of Embroidery Machine

1. Specifications

2. Names of Machine Components

3. Installation

3-1 Transportation of Machine

3-2 Installation of Machine

3-3 Preparation of Needle Bar Case

3-4 Mounting of Table

3-5 Mounting of Cotton Stand

3-6 Lubrication to Needle Bar Case

3-7 Grounding

4. Preparation for Embroidering

4-1 Upper Threading

4-2 Replacement of Bobbin

4-3 Replacing and Selecting Needle

4-4 Attachment of Embroidery Hoop and Frame

4-5 Flat Frame Every Other Head Operation

4-6 Adjustment of Thread Tension

Chapter 2

Embroidering Procedures

After installation of machine start embroidering. This chapter explains about the operation panel on the machine as well as precautions for the actual embroidering process.

Functions of Operation Panel

Operation Panel

Operation panel

Switches at Machine Heads

Switches on Tension Plate

Flowchart of Preparation for Embroidering

Turn on the Machine Power

Retrieve the Embroidery Data

Start Embroidering

Chapter 3

Selection of Data and Embroidering

This Chapter describes how to select embroidery data in order to start embroidering.

What Can the Machine Do?

Selection of Embroidery Data

Embroidering Operation

Selection of Data

Registration of Embroidery Data from Floppy Disk

Loading and Loading of Floppy Disk

Registration of Sewing Data into Machine Memory

Reading from Memory

Registration of Embroidery Data from BE-100