Brother LT2-B847 MKII Owner's Manual

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INSTRUCTION MANUAL

BAS-300G-484 BAS-300G-484 SF

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

DIRECT DRIVE

PROGRAMMABLE ELECTRONIC PATTERN SEWER

Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions below and the explanations given in the instruction manual.

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

BAS-300G-484, BAS-300G-484 SF

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

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

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

The meanings of these indications and symbols are given below.

Indications

DANGER

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

WARNING

CAUTION

Symbols

･･････

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

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

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

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

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

BAS-300G-484, BAS-300G-484 SF

[2] Notes on safety

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

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

DANGER

WARNING

CAUTION

Environmental requirements

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

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

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

Installation

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

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

The sewing machine weighs approximately 90 kg. The installation should be carried out by two or more people.

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

Hold the machine head with both hands when tilting it back or returning it to its original position. Furthermore, do not apply excessive force when tilting back the machine head. The sewing machine may become unbalanced and fall down, and serious injury or damage to the sewing machine may result.

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

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

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

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

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

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

Install the safety covers to the machine head and motor.

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

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

BAS-300G-484, BAS-300G-484 SF

CAUTION

Sewing

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

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

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

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

• When threading the needle

• When replacing the bobbin and needle

• When not using the machine and when leaving the

machine unattended

Cleaning

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

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

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

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

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

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

Maintenance and inspection

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

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

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

• Inspection, adjustment and maintenance

• Replacing consumable parts such as the rotary

hook

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

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

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

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

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

BAS-300G-484, BAS-300G-484 SF

iii

[3] Warning labels

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

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

*Safety devices

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

When operating the sewing machine, close the hook cover. If you touch the hook while it is spinning, injury or damage to the sewing machine may result.

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

Direction of operation

BAS-300G-484, BAS-300G-484 SF

Solenoid cover

Motor cover

Tension release solenoid cover

Motor cover L

Inner cover L Outer cover Fixed cover L

Eye guard

Finger guard

Hook cover

Thread take-up cover

Inner cover R Outer cover Fixed cover R

Motor cover R

Gas spring support cover

4630M 4631M

BAS-300G-484, BAS-300G-484 SF

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

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

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

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

3-2. Installing the control box................................... 4

3-3. Installing the oil pan.......................................... 4

3-4. Installing the machine head.............................. 5

3-5. Tilting the sewing machine head ...................... 9

3-6. Installing the operation panel............................ 9

3-7. Installing the pneumatic unit ............................. 10

3-8. Adjusting the speed controller .......................... 11

3-9. Connecting the cords........................................ 12

3-10. Connecting the ground wire............................ 14

3-11. Connecting the power cord............................. 15

3-12. Installing the cotton stand...............................15

3-13. Installing the eye guard .................................. 16

3-14. Installing the motor cover ............................... 17

3-15. Lubrication ...................................................... 18

3-16. Installing the machine head fixing bolt ........... 19

4. PREPARATION BEFORE SEWING.....20

4-1. Installing the needle.......................................... 20

4-2. Threading the upper thread .............................. 20

4-3. Foot switch operating method ..........................21

4-4. Winding the lower thread..................................22

4-5. Installing the bobbin case................................. 23

4-6. Installing the anti-spin spring............................ 23

4-7. Thread tension.................................................. 24

4-7-1. Lower thread tension ............................. 24

4-7-2. Upper thread tension ............................. 24

4-8. Home position detection ................................... 25

5. USING THE OPERATION PANEL

(BASIC OPERATIONS)....................... 26

5-1. Name and function of each operation

panel item.........................................................26

5-2. Loading sewing data......................................... 28

5-3. Setting the program number.............................28

5-4. Setting the X-scale and Y-scale .......................29

5-5. Setting the sewing speed..................................29

5-6. Checking the sewing pattern ............................30

5-7. Setting the height of the intermittent

presser foot (-484 SF specifications only)........31

6. USING THE OPERATION PANEL

(ADVANCED OPERATIONS).............. 32

6-1. List of advanced functions ................................ 32

6-2. Setting memory switches..................................33

6-3. List of memory switch settings..........................34

6-4. Using the lower thread counter......................... 35

6-5. Using the production counter............................ 36

6-6. Setting the split number....................................37

6-7. Using user programs ........................................38

6-8. Using cycle programs ....................................... 41

6-9. Direct selection (combination table) .................43

6-10. X and Y parallel movement

of sewing pattern ............................................44

6-11. Clearing memory data (reinitialization) ........... 45

7. USING CF CARDS............................... 46

7-1. Notes on handling CF cards (sold separately)

..........................................................................46

7-2. Structure of a CF card folder ............................46

7-3. Data read/write mode .......................................47

7-3-1. Reading all sewing data from the

CF card at once ...................................... 48

7-3-2. Writing all sewing data to the CF card at

once ........................................................49

BAS-300G-484, BAS-300G-484 SF

8. SEWING................................................50

8-1. Sewing .............................................................. 50

8-2. Using the STOP switch..................................... 51

8-3. Using the thread wiper switch........................... 51

9. CLEANING ...........................................52

9-1. Cleaning the rotary hook ..................................52

9-2. Cleaning the control box air inlet ports ............. 52

9-3. Draining the oil.................................................. 53

9-4. Checking the regulator ..................................... 53

9-5. Cleaning the eye guard .................................... 53

9-6. Checking the needle.........................................53

9-7. Lubrication ........................................................ 53

10. STANDARD ADJUSTMENTS ............54

10-1. Checking the machine head switch................ 54

10-2. Arm thread guide R ........................................ 54

10-3. Thread take-up spring .................................... 55

10-4. Adjusting the needle bar height...................... 55

10-5. Adjusting the needle bar lift amount ............... 56

10-6. Adjusting the needle clearance ...................... 56

10-7. Adjusting the thread take-up amount ............. 57

10-8. Adjusting the clearance between the inner

hook and the hook stopper............................. 57

10-9. Replacing the movable and fixed knives ........ 58

10-10. Adjusting the standby position of the

movable knife................................................ 59

10-11. Adjusting the engagement of the

movable knife and fixed knife ....................... 61

10-12. Installing the feed plate................................. 62

10-13. Adjusting the thread wiper............................ 63

10-14. Intermittent presser foot installation

position (-484 SF specifications only) .......... 63

10-15. Changing the intermittent stroke

(-484 SF specifications only) ........................ 64

10-16. Adjusting the work clamp lift amount............66

10-17. Adjusting the air pressure............................. 66

10-18. If processing the work clamps and the feed

plate to a shape that matches the sewing

pattern........................................................... 67

11. TABLE OF ERROR CODES .............. 68

12. TROUBLESHOOTING ....................... 73

13. 7-SEGMENT DISPLAY ...................... 77

BAS-300G-484, BAS-300G-484 SF

1. NAMES OF MAJOR PARTS

(1) Power switch (2) Control box (12) Finger guard (3) CF slot (13) Eye guard (4) Operation panel (14) Thread take-up cover (5) Work clamp switch (15) Motor cover (6) Start switch (16) Solenoid cover (7) STOP switch (17) Hook cover (8) Thread wiper switch (9) Pulley (10) Cotton stand (11) Solenoid valve

<BAS-300G-484>

is a trademark of SanDisk Corporation.

<BAS-300G-484 SF>

4632M

Safety devices:

BAS-300G-484, BAS-300G-484 SF

2. SPECIFICATIONS

Sewing machine Lock stitch pattern tacking sewing machine

Stitch formation Single needle lock stitch

Max. sewing speed 2,200 sti/min

Max. sewing area (XxY) 130 x 60 mm

Feed mechanism Intermittent feed, pulse motor drive

With intermittent presser foot

2. SPECIFICATIONS

4633M

Stitch length

No. of stitches 500,000-stitch internal memory (*1)

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

No. of sewing data items that can be stored

Work clamp lift method Pneumatic method

Work clamp height Max. 30 mm

Intermittent presser foot lift amount

Intermittent stroke

Hook Treble hook

Wiper device Standard equipment

Thread trimmer Standard equipment

Data storage method

User programs 50

Cycle programs 9

Motor 550 W AC servo motor

Weights

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

Internal memory (Flash memory), CF card (32 MB − 2 GB)

Machine head approx. 90 kg, operation panel approx. 0.6 kg

Control box 14.2 − 16.2 kg (Differs depending on destination)

Internal memory: 512 (*1), CF card: 900

3.5 floppy disk 2HD/1.44MB, 2DD (*3)

0.05 − 12.7 mm

19.5 mm (*2)

Power supply Single-phase 110 V/120 V/220 V/240 V, Three-phase 220 V/400 V 400 VA

Air pressure 0.5 MPa 1.8 l/min.

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

program.

(*2) Only applicable to -484 SF specifications.

(*3) Supply of parts relating to 3.5-inch floppy disks has already been discontinued. (However the mechanism will still

function.)

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

CAUTION

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

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

The sewing machine head weighs approximately 90 kg. The installation should be carried out by two or more people.

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

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

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

Install the safety covers to the machine head and motor.

3-1. Table processing diagram

• The thickness of the table should be at least 40 mm, and it should be strong enough to bear the weight and vibration of the

sewing machine.

• If the distance A between the insides of the legs is less than 740 mm, move the control box installation position to the left (B =

261 mm).

• Check that the control box is at least 10 mm away from the leg. If the control box and the leg are too close together, it may result

in incorrect sewing machine operation.

4718M

BAS-300G-484, BAS-300G-484 SF

3-2. Installing the control box

Operator

3-3. Installing the oil pan

3. INSTALLATION

Remove the eight screws (1), and then remove the control box cover (2). (3) Control box (4) Bolts [4 pcs.] (5) Plain washers [4 pcs.] (6) Spring washers [4 pcs.] (7) Nuts [8 pcs.]

1840B

(8) Power switch (9) Wood screws [2 pcs.] (10) Staples [4 pcs.]

1841B

(1) Oil pan (2) Nails [7 pcs.] (3) Rubber cushions [4 pcs.] (4) Waste oil tank

2142B

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-4. Installing the machine head

(1) Pins [2 pcs.] (2) Set screws [2 pcs.] (3) Hinge rubber assemblies [2 pcs.]

Place the machine head gently on top of the oil pan and the rubber cushions.

Pulse motor

Approx. 20 mm

4635M

NOTE:

• Be careful not to get the cords

clamped between the machine head and the oil pan.

• When holding the machine head, do

not hold it by the pulse motor. This may cause problems with operation of the pulse motor.

(4) Hinge holders [2 pcs.] (5) Bolts [4 pcs.] (6) Plain washers [4 pcs.] (7) Nuts [4 pcs.] (8) Head rest (9) Bolts with washer [4 pcs.]

4636M

BAS-300G-484, BAS-300G-484 SF

Needle plate

3. INSTALLATION

(10) Auxiliary plate (11) Bolts with washer [4 pcs.]

Loosen the four bolts with washer (11), and adjust so that the auxiliary plate (10) is 0 to 0.5 mm above the needle plate.

NOTE:

Install the auxiliary plate (10) so that it is horizontal. If the auxiliary plate (10) is lower than the needle plate, the feed plate may get caught on the needle plate.

4637M

Move the work clamp arm all the way to the right when looking from the front of the sewing machine (the direction of the arrow in the illustration), and then gently tilt back the machine head.

NOTE:

Two or more people should tilt back the

Work clamp arm

machine head, and it should be tilted gently while being held with both hands.

4638M

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

4639M

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

4640M

(12) Gas spring holders [2 pcs.] (13) Spacer (14) Bolt (15) Nut (16) Gas spring (17) Shaft collars [2 pcs.] (18) Gas spring shaft D (19) Plain washers [2 pcs.] (20) Retaining rings E [2 pcs.] (21) Bolts [2 pcs.] (22) Plain washers (medium) [2 pcs.] (23) Plain washers (large) [2 pcs.] (24) Spring washers [2 pcs.] (25) Nuts [2 pcs.] (26) Gas spring shaft U (27) Set screw

(28) Gas spring support cover (29) Bolts with washer [6 pcs.]

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

Oil pan

4641M

• Gently return the machine head to its original position.

• Loosen the screw (30). Move the machine head switch (31) to the position shown in the illustration, and then secure the machine

head switch (31) with the screw (30) and the accessory M3x16 screw (32).

• Check that the machine head switch (31) is turned on as shown in figure <A>.

NOTE:

If the machine head switch is not turned on, errors "E050", "E051" and "E055" will be generated.

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-5. Tilting the sewing machine head

4642M 4643M

1. Move the presser arm assembly (1) as far as it will go in the direction of the arrow in the illustration (to the right when looking from the front of the sewing machine).

2. Stand at the left side of the table, and gently tilt the machine head towards you.

NOTE:

Always be sure to move the work clamp arm (1) all the way to the right before tilting back the machine head. If you try to tilt back the machine head while the work clamp arm (1) is still on the left side, it may damage the outer cover L (2).

3-6. Installing the operation panel

(1) Operation panel set (2) Panel rubber (3) Plain washers [6 pcs.] (4) Bolts [3 pcs.] (5) Nuts [6 pcs.]

• Insert the cord from the operation

panel (1) which has been passed through the hole in the table into the control box through the hole in the side of the control box.

(6) Staples [3 pcs.]

2971B

BAS-300G-484, BAS-300G-484 SF

3-7. Installing the pneumatic unit

3. INSTALLATION

1. Install the pneumatic unit underneath the work table.

(1) Solenoid valve assembly (2) Washers [2 pcs.] (3) Wood screws [2 pcs.] (4) Rubber hose

NOTE: Make sure that the pneumatic unit does not touch the control box or the work table leg.

2. Disconnect the connector (5) of the valve harness.

3. Connect the connector (6) of the thread wiper switch to the connector (5).

4644M

Valve nos.

fter installing the pneumatic unit, adjust the air pressure. (Refer to "10-17. Adjusting the air pressure".)

4645M

4. Connect each of the air tubes (7) to the valves so that all of the numbers match respectively. (Connect the air tube marked with a T to valve 3.) The air tubes (7) marked with an A connect to the front valve connections (A), and those marked with B connect to the rear connections (B).

5. Open the air cock (8).

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-8. Adjusting the speed controller

Val ve 2

You can adjust the lifting and lowering speeds for the work clamps using the knobs (1) and (2) on valves 1 and 2. Valve 1 adjusts the right work clamp (3), and valve 2 adjusts the left work clamp (4). The knobs (1) and (2) should be adjusted so that the left and right work clamps operate at the same speed.

• When the upper knob (1) is tightened, the lifting speed

becomes slower. When it is loosened, the lifting speed becomes faster.

• When the lower knob (2) is tightened, the lowering speed

becomes slower. When it is loosened, the lowering speed becomes faster.

Val ve 1

Val ve 3

4646M

4647M

You can operate the work clamp when the power is turned off by pressing the manual buttons (5).

Valve 3 is used for adjusting the operating speed of the thread wiper (1). To use, fully tighten both the upper and lower knobs (2) and (3), and then loosen them both by 6 turns.

NOTE:

If the knobs (2) and (3) are tightened more than the settings mentioned above, upper thread wiping may not be carried out correctly.

Valve 4 is used for adjusting the operating speed of the thread take-up lever (1). To use, fully tighten both the upper and lower knobs (2) and (3), and then loosen them both by 6 turns.

NOTE:

If the knobs (2) and (3) are tightened more than the settings

Val ve 4

mentioned above, the upper thread trailing length may not be maintained correctly.

4648M

BAS-300G-484, BAS-300G-484 SF

3-9. Connecting the cords

3. INSTALLATION

1. Gently tilt back the machine head.

2. Pass the cord bundle through the hole in the work table.

3. Loosen the two screws (1), and then open the cord presser plate (2) in the direction of the arrow and pass the cord bundle through the opening together with the following cords.

• Two-pedal foot switch (3)

• Operation panel (Do not pass the

ground wires through the hole.)

• Solenoid valve assembly

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

4649M

NOTE:

• Check that the connector is facing the correct

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

• Secure the cables with cable ties and cord

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

*1:

Be sure to make the ground connection.

(Refer to "3-10. Connecting the ground wire".)

*2:

Only applicable to -484 SF specifications.

X pulse motor encoder 5-pin white P20 (X-ENC) (3) Y pulse motor encoder 5-pin blue P4 (Y-ENC) (3) Work clamp pulse motor encoder 5-pin black

Foot switch 10-pin P6 (FOOT) (3) Operation panel 8-pin P1 (PANEL) (3) Machine head switch 3-pin P9 (HEAD-SW) (4) Home position sensor assembly 12-pin P8 (SENSOR1) (4) STOP switch 6-pin P13 (HEAD) (4) Valve harness 12-pin P12 (AIR1) (4) Valve harness 5-pin P26 (AIR3) (4) Programmer relay harness 8-pin P7 (PRG) (3) Solenoid selection harness 4-pin P3 (CUTTER) －

4650M

Thread trimming cylinder sensor harness 16-pin P23 (EX-IN1) (4)

Connector

Lock the cord clamp securely.

Connection location on

main P.C. board

P5 (P-ENC) (3)

Cord clamp

(Continued on next page)

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

Machine head memory 7-pin P3 (HEAD-M) (4)

Upper shaft motor 3-pin P4 (UVW) (5)

Synchronizer 14-pin P5 (SYNC) (5), (6)

Work clamp pulse motor 4-pin black

Thread trimmer solenoid 6-pin P6 (SOL1) (5), (6)

Tension release solenoid 4-pin P7 (SOL2) (5), (6)

Y pulse motor 4-pin blue P8 (YPM) (5), (6)

4651M

X pulse motor 4-pin white P10 (XPM) (5), (6)

Connector

Press the tab.

NOTE:

Route the X, Y and work clamp pulse motor harnesses so that they do not touch the PMD P.C.

*1:

Be sure to make the ground connection.

(Refer to "3-10. Connecting the ground wire".)

*2:

Only applicable to -484 SF specifications.

Connection location on

power supply motor P.C.

Cord clamp/cable tie

board

Connection location on

PMD P.C. board

P3 (PPM) (5), (6)

Cable tie

(Continued on next page)

BAS-300G-484, BAS-300G-484 SF

3-10. Connecting the ground wire

CAUTION

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.

3. INSTALLATION

5. Close the cord presser plate (2) in the direction of the left arrow, and secure it by tightening the two screws (1).

NOTE: Close the cord presser plate (2) securely so that no

foreign objects, insects or small animals can get inside the control box.

6. Check that the cords do not get pulled, and then gently return the machine head to its original position.

2149B

(1) Ground wire from upper shaft motor harness (2) Ground wire from the machine head (3) Ground wire from operation panel (4) Ground wires from two-pedal foot switch harnesses (2 wires)

• Tighten the control box cover with the eight screws. Check that the cords are not clamped by the cover at this time.

4652M

NOTE: Make sure that the ground connections are secure in order to ensure safety.

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-11. Connecting the power cord

<Single-phase

specifications>

<Three-phase

specifications>

Green and yellow wire (ground wire)

1. Attach an appropriate plug to the power cord (1). (The green and yellow wire is the ground wire.)

2. Insert the plug into a properly-grounded AC power supply.

* The inside of the control box uses

single-phase power.

NOTE:

Do not use an extension cord. If this is not observed, it may cause problems with correct operation.

5239Q

3-12. Installing the cotton stand

(1) Cotton stand

NOTE:

Fit the washer (2), and then securely tighten the nut (3) so that the cotton stand does not move.

2974B

BAS-300G-484, BAS-300G-484 SF

3-13. Installing the eye guard

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

3. INSTALLATION

CAUTION

(1) Screw (loosen) (2) Eye guard (tilt forward) (3) Eye guard assembly (4) Plain washers [2 pcs.] (5) Screws [2 pcs.]

After installing the eye guard assembly (3), return the eye guard (2) to its original angle, and then tighten the screw (1) to secure it in place.

2152B

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-14. Installing the motor cover

4653M

4654M

(1) Motor cover R (2) Screws [4 pcs.] (3) Motor cover L (4) Screws [4 pcs.] (5) Motor cover (6) Screws [2 pcs.] (7) Solenoid cover (8) Screws [2 pcs.] (9) Screws [2 pcs.]

NOTE:

Be careful not to clamp the cords when installing the motor cover and the solenoid cover.

BAS-300G-484, BAS-300G-484 SF

3. INSTALLATION

3-15. Lubrication

CAUTION

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

The sewing machine should always be lubricated and the oil supply replenished before it is used for the first time, and also after long periods of non-use. Use only the lubricating oil <JX Nippon Oil & Energy Corporation Sewing Lube 10N; VG10> specified by Brother.

* If this type of lubricating oil is difficult to obtain, the recommended oil to use is <Exxon Mobil Essotex SM10; VG10>.

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

2. Move the work clamp arm (1) as far as it will go to the right when looking from the front of the sewing machine, and then slide the outer cover L (2) into the inner cover L (3) so that the lubrication hole in the bed is visible. Pour oil into the bed side oil tank through this hole.

NOTE:

Be sure to fill the machine with oil when the oil level drops below the one-third level in the oil sight glasses (4) or (5). If the oil level drops below the one-third level in the oil sight glasses (4) or (5), there is the danger that the sewing machine may seize during operation.

4657M 4658M

3. Remove the bobbin case and add 2-3 drops of oil to the sliding parts (6) of the outer rotary hook and inner hook.

4. If using the needle cooler (7), fill it with silicon oil (100 mm

/s). (Refer to “4-2. Threading the upper thread”.)

4656M4655M

BAS-300G-484, BAS-300G-484 SF

+ 61 hidden pages

Brother LT2-B847 MKII Owner's Manual

SAFETY INSTRUCTIONS

[1] Safety indications and their meanings

[2] Notes on safety

[3] Warning labels

CONTENTS

1. NAMES OF MAJOR PARTS

2. SPECIFICATIONS

3. INSTALLATION

3-1. Table processing diagram

3-2. Installing the control box

3-3. Installing the oil pan

3-4. Installing the machine head

3-5. Tilting the sewing machine head

3-6. Installing the operation panel

3-7. Installing the pneumatic unit

3-8. Adjusting the speed controller

3-9. Connecting the cords

3-10. Connecting the ground wire

3-11. Connecting the power cord

3-12. Installing the cotton stand

3-13. Installing the eye guard

3-14. Installing the motor cover

3-15. Lubrication