Brother BAS-326G User Manual

BAS-300G BAS-311G BAS-326G

INSTRUCTION MANUAL

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, BAS-311G, BAS-326G

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	The instructions which follow this term indicate situations where failure to follow the
	instructions could result in death or serious injury.
CAUTION	The instructions which follow this term indicate situations where failure to follow the
	instructions may result in minor or moderate injury.
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”.)

BAS-300G, BAS-311G, BAS-326G

i

[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 cover of the control box. Touching areas where high voltages are present can result in severe injury.

WARNING

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.

CAUTION

Environmental requirements

Use the sewing machine in an area which is free from sources of strong electrical noise such as electrical line noise or static electric noise.

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

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

The power supply capacity should be greater than the requirements for the sewing machine's power consumption.

Insufficient power supply capacity may cause problems with correct operation.

The pneumatic delivery capability should be greater than the requirements for the sewing machine's total air consumption.

Insufficient pneumatic delivery capability may cause problems with correct operation.

The ambient temperature should be within the range of 5°C to 35°C during use.

Temperatures which are lower or higher than this may cause problems with correct operation.

The relative humidity should be within the range of 45% to 85% during use, and no dew formation should occur in any devices.

Excessively dry or humid environments and dew formation may cause problems with correct operation.

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

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 88 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.

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.

ii	BAS-300G, BAS-311G, BAS-326G

	CAUTION
	Sewing
	This sewing machine should only be used by	If using a work table which has casters, the casters
	operators who have received the necessary training	should be secured in such a way so that they cannot
	in safe use beforehand.	move.
	The sewing machine should not be used for any	Attach all safety devices before using the sewing
	applications other than sewing.	machine. If the machine is used without these
	Be sure to wear protective goggles when using the	devices attached, injury may result.
	machine.	Do not touch any of the moving parts or press any
	If goggles are not worn, there is the danger that if a
		objects against	the machine while	sewing,	as	this
	needle breaks, parts of the broken needle may enter
		may result in	personal injury or	damage	to	the
	your eyes and injury may result.
		machine.
	Turn off the power switch at the following times. If the
		If an error occurs in machine operation, or if abnormal
	foot switch is depressed by mistake, the sewing
		noises or smells are noticed, immediately turn off the
	machine might start operating and injury could result.
		power switch. Then contact your		nearest	Brother
	• When threading the needle
		dealer or a qualified technician.
	• When replacing the bobbin and needle
	• When not using the machine and when leaving the	If the machine develops a problem, contact your
	machine unattended	nearest Brother dealer or a qualified technician.
	Cleaning
	Turn off the power switch before carrying out	Be sure to wear protective goggles and gloves when
	cleaning. If the foot switch is depressed by mistake,	handling the lubricating oil and grease, so that they
	the sewing machine might start operating and injury	do not get into your eyes or onto your skin. If the oil
	could result.	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.
	Maintenance and inspection
	Maintenance and inspection of the sewing machine	Hold the machine head with both hands when tilting it
	should only be carried out by a qualified technician.	back or returning it to its original position.
	Ask your Brother dealer or a qualified electrician to	Furthermore, do not apply excessive force when
		tilting back the machine head. The sewing machine
	carry out any maintenance and inspection of the
		may become unbalanced and fall down, and serious
	electrical system.
		injury or damage to the sewing machine may result.
	Turn off the power switch and disconnect the power
		If the power switch needs to be left on when carrying
	cord before carrying out the following operations. If
		out some adjustment, be extremely careful to observe
	the foot switch is depressed by mistake, the sewing
		all safety precautions.
	machine might start operating and injury could result.
	• Inspection, adjustment and maintenance	When replacing parts and installing optional
	• Replacing consumable parts such as the rotary	accessories, be sure to use only genuine Brother
	hook	parts.
	Disconnect the air hoses from the air supply and wait	Brother will not be held responsible for any accidents
		or problems resulting from the use of non-genuine
	for the needle on the pressure gauge to drop to “0”
		parts.
	before carrying out inspection, adjustment and repair
	of any parts which use the pneumatic equipment.	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, BAS-311G, BAS-326G					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.

1

2

.

*Safety devices

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

3

4

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

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.

5 Direction of operation

iv	BAS-300G, BAS-311G, BAS-326G

Motor cover	Tension release solenoid cover
	Inner cover L
	Outer cover
	Fixed cover L

Motor cover L

Thread take-up cover

Eye guard

Finger guard

Gas spring support cover

Inner cover R

Outer cover

Fixed cover R

Motor cover R

2960B 2961B

BAS-300G, BAS-311G, BAS-326G v

CONTENTS

1. NAMES OF MAJOR PARTS ................	1
2. SPECIFICATIONS ................................	2
3. INSTALLATION....................................	3
3-1. Table processing diagram ................................	4
3-2. Installing the control box...................................	5
3-3. Installing the oil pan..........................................	5
3-4. Installing the machine head..............................	6
3-5. Tilting the sewing machine head ......................	9
3-6. Installing the operation panel............................	10
3-7. Installing the treadle unit
(motor-driven work clamp specifications) .........	11
3-8. Installing the two-pedal foot switch
(pneumatic work clamp specifications) ...............	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 pneumatic unit
(pneumatic work clamp specifications) .............	16
3-14. Installing the eye guard ..................................	17
3-15. Installing the motor cover ...............................	17
3-16. Lubrication ......................................................	18
3-17. 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. Winding the lower thread..................................	22
4-4. Installing the bobbin case .................................	23
4-5. Thread tension..................................................	24
4-5-1. Lower thread tension..............................	24
4-5-2. Upper thread tension..............................	24
4-6. 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 work clamp lift amount....................	31
6. USING THE OPERATION PANEL
(ADVANCED OPERATIONS) ..............	33
6-1. List of advanced functions ................................	33
6-2. Setting memory switches ..................................	34
6-3. List of memory switch settings ..........................	35
6-4. Using the lower thread counter .........................	36
6-5. Using the production counter ............................	37
6-6. Setting the split number ....................................	38
6-7. Using user programs.........................................	39
6-8. Using cycle programs .......................................	42
6-9. Direct selection (combination table)..................	44
6-10. X and Y parallel movement of sewing pattern ...	45
6-11. Clearing memory data (reinitialization) ...........	46
7. USING CF CARDS ...............................	47
7-1. Notes on handling CF cards (sold separately) ...	47
7-2. Structure of a CF card folder.............................	47
7-3. Data read/write mode........................................	48
7-3-1. Reading all sewing data from the
CF card at once ......................................	49
7-3-2. Writing all sewing data to the CF card at
once ........................................................	50

BAS-300G, BAS-311G, BAS-326G

8. SEWING................................................	51
8-1. Sewing ..............................................................	51
8-2. Using the STOP switch.....................................	52
8-3. Using the thread wiper switch...........................	52
9. CLEANING ...........................................	53
9-1. Cleaning the rotary hook ..................................	53
9-2. Cleaning the control box air inlet ports .............	54
9-3. Draining the oil..................................................	54
9-4. Cleaning the eye guard ....................................	54
9-5. Checking the needle.........................................	54
9-6. Lubrication ........................................................	54
10. STANDARD ADJUSTMENTS ............	55
10-1. Checking the machine head switch................	55
10-2. Thread take-up spring ....................................	56
10-3. Arm thread guide R ........................................	56
10-4. Adjusting the needle bar height......................	57
10-5. Adjusting the needle bar lift amount ...............	57
10-6. Adjusting the needle contact pressure
of the driver......................................................	57
10-7. Adjusting the needle clearance ......................	58
10-8. Adjusting the shuttle race thread guide ..........	58
10-9. Rotary hook lubrication amount......................	58
10-10. Adjusting the position of the movable knife....	59
10-11. Replacing the movable and fixed knives ......	61
10-11-1. Installing the feed plate..................	62
10-12. Adjusting the thread wiper............................	63
10-13. Presser foot installation position...................	63
10-14. Changing the intermittent stroke ..................	64
10-15. Adjusting the work clamp lift amount............	66
10-16. Adjusting the air pressure
(pneumatic work clamp specifications)............	66

11.	TABLE OF ERROR CODES...............	67
12.	TROUBLESHOOTING........................	71
13.	7-SEGMENT DISPLAY.......................	74

BAS-300G, BAS-311G, BAS-326G

1. NAMES OF MAJOR PARTS

1. NAMES OF MAJOR PARTS

<BAS-300G>

<BAS-311G> <BAS-326G>

Two-pedal foot switch

2962B

(1)	Power switch	Safety devices:
(2)	Control box	(13)	Finger guard
(3)	CF slot	(14)	Eye guard
(4)	Operation panel	(15) Thread take-up cover
(5)	Foot switch (motor-driven work clamp specifications)	(16) Motor cover

(6)Work clamp switch (pneumatic work clamp specifications)

(7)Start switch (pneumatic work clamp specifications)

(8)STOP switch

(9)Thread wiper switch

(10)Pulley

(11)Cotton stand

(12)Solenoid valve (pneumatic work clamp specifications)

CFTM is a trademark of SanDisk Corporation.

1	BAS-300G, BAS-311G, BAS-326G

2. SPECIFICATIONS

2. SPECIFICATIONS

						2997B
	Sewing machine	Lock stitch pattern tacking sewing machine (with large shuttle hook)
	Stitch formation			Single needle lock stitch
	Max. sewing speed			2,700 sti/min
	Max. sewing area (XxY)	BAS-300G: 130 x 60 mm		BAS-311G: 130 x 100 mm		BAS-326G: 220 x 100 mm
	Feed mechanism		Intermittent feed, pulse motor drive
	Stitch length			0.05 − 12.7 mm
	No. of stitches		500,000-stitch internal memory (*1)
	Maximum no. of stitches			20,000 stitches (per program)
	No. of sewing data items	Internal memory: 512 (*1), CF card: 900
	that can be stored
		Motor-driven work clamp specifications: Pulse motor drive method
	Work clamp lift method
		Pneumatic work clamp specifications: Pneumatic method
	Work clamp height	Motor-driven work clamp specifications: Max. 25 mm
		Pneumatic work clamp specifications: Max. 30 mm
	2-step work clamp	Motor-driven work clamp specifications: Integrated-type work clamp
		Pneumatic work clamp specifications: Separate-type work clamp
	Intermittent presser foot lift			22 mm
	amount
	Intermittent stroke	2 − 4.5 mm, 4.5 − 10 mm or 0 (Default setting 3 mm)
	Hook	Double-capacity shuttle hook (standard shuttle hook sold separately)
	Wiper device			Standard equipment
	Thread trimmer			Standard equipment
		Internal memory (Flash memory), CF card (32 MB − 2 GB)
	Data storage method
			3.5 floppy disk 2HD/1.44MB, 2DD (*2)
	User programs		50
	Cycle programs		9
	Motor			550 W AC servo motor
		Machine head approx. 88 kg, operation panel approx. 0.6 kg
	Weights
		Control box 14.2 − 16.2 kg (Differs depending on destination)
	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) Supply of parts relating to 3.5-inch floppy disks has already been discontinued. (However the mechanism will still function.)

BAS-300G, BAS-311G, BAS-326G

2

3. INSTALLATION

3. INSTALLATION

CAUTION

	Machine installation should only be carried out by a	All cords should be secured at least 25 mm away from
	qualified technician.	any moving parts. Furthermore, do not excessively
	Contact your Brother dealer or a qualified electrician	bend the	cords		or	secure		them too	firmly		staples,
		otherwise	there		is	the	danger that		fire or		electric
	for any electrical work that may need to be done.
		shocks could occur.
	The sewing machine head weighs approximately	Be sure	to	connect			the	ground.	If	the	ground
	88kg. The installation should be carried out by two or
		connection	is	not		secure,		you run	a	high	risk of
	more people.
		receiving a serious electric shock, and problems with
	Do not connect the power cord until installation is	correct operation may also occur.
	complete.	Install the	safety		covers to			the machine head and
	If the foot switch is depressed by mistake, the sewing
		motor.
	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.

3	BAS-300G, BAS-311G, BAS-326G

3. INSTALLATION

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 = 261mm).

•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.

<For BAS-311G and 326G>

3000B

<For BAS-300G>	(Reference position)
Only the holes for installing the operation panel and
the hole for the cord differ from the above diagram.
Refer to the diagram above for all other dimensions.

*The operation panel can be moved to any preferred position as long as it is in a position where the cord reaches the PCB inside the control box.

3003B

BAS-300G, BAS-311G, BAS-326G

4

3. INSTALLATION

3-2. Installing the control box

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

Operator

1841B

3-3. Installing the oil pan

4911Q

(8)Power switch

(9)Wood screws [2 pcs.]

(10)Staples [4 pcs.]

For motor-driven work clamp specifications, install the treadle unit mounting bolt (A) before installing the oil pan.

(Refer to "3-7. Installing the treadle unit (motor-driven work clamp specifications)".)

(1)Oil pan

(2)Nails [7 pcs.]

(3)Rubber cushions [4 pcs.]

(4)Waste oil tank

5	BAS-300G, BAS-311G, BAS-326G

3. INSTALLATION

3-4. Installing the machine head

Pulse motor

Approx. 20 mm

Approx. 20 mm

2966B

(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.

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.]

4913Q

BAS-300G, BAS-311G, BAS-326G

6

3.INSTALLATION

<BAS-300G>

Needle plate

<BAS-311G, 326G>

Needle plate

Work clamp arm

2698B <BAS-300G>

(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.

<BAS-311G, 326G>

(10)Auxiliary plate

(11)Bolts with washer [10 pcs.]

Loosen the six bolts with washer (11) and the four bolts with washer (12), 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.

2697B

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

2969B

7	BAS-300G, BAS-311G, BAS-326G

3. INSTALLATION

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

1902B

(13)Gas spring holders [2 pcs.]

(14)Spacer

(15)Bolt

(16)Nut

(17)Gas spring

(18)Shaft collars [2 pcs.]

(19)Gas spring shaft D

(20)Plain washers [2 pcs.]

(21)Retaining rings E [2 pcs.]

(22)Bolts [2 pcs.]

(23)Plain washers (medium) [2 pcs.]

(24)Plain washers (large) [2 pcs.]

(25)Spring washers [2 pcs.]

(26)Nuts [2 pcs.]

(27)Gas spring shaft U

(28)Set screw

NOTE:

For motor-driven work clamp specifications, the bolts (22), plain washers (23), plain washers (24), spring washers (25) and nuts (26) in the places marked with * are also used to install the treadle unit. (Refer to "3-7. Installing the treadle unit (motor-driven work clamp specifications)".)

(29)Gas spring support cover

(30)Bolts with washer [6 pcs.]

4916Q

BAS-300G, BAS-311G, BAS-326G

8

3. INSTALLATION

Figure 1

Oil pan

2365B

•Gently return the machine head to its original position.

•Loosen the screw (31). Move the machine head switch (32) to the position shown in the illustration, and then secure the machine head switch (32) with the screw (31) and the accessory M3x16 screw (33).

•Check that the machine head switch (32) is turned on as shown in figure 1.

NOTE:

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

3-5. Tilting the sewing machine head

CAUTION

2970B

4919Q

1.Move the work clamp arm (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).

9	BAS-300G, BAS-311G, BAS-326G

3. INSTALLATION

3-6. Installing the operation panel

<BAS-300G>

<BAS-311G, 326G>

2971B	<BAS-300G>
	(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.]

<BAS-311G, 326G>

(1)Operation panel base

(2)Cushion A

(3)Plain washers (medium) [3 pcs.]

(4)Bolts [3 pcs.]

(5)Cushions B [3 pcs.]

(6)Plain washers (large) [3 pcs.]

(7)Nuts [6 pcs.]

Tighten until the thickness of cushion B

(5) is about 1 mm.

(8)Operation panel

(9)Operation panel stand

(10)Bolts [3 pcs.]

(11)Rubber seat

(12)Bolt

•Pass the cord from the operation panel

(8)through the operation panel stand

(9)and the rubber seat (11).

•Fit the operation panel stand (9) into the operation panel base (1), and then secure it with the bolt (12).

•Pass the cord from the operation panel

(8)through the hole in the table, and then insert it into the control box through the hole in the side of the control box.

(13) Staples [3 pcs.]

4920Q

BAS-300G, BAS-311G, BAS-326G

10

3. INSTALLATION

3-7. Installing the treadle unit (motor-driven work clamp specifications)

(1) Treadle unit

(2) Bolts [3 pcs.]

(3) Plain washers [3 pcs.]

(4) Spring washers [3 pcs.]

(5) Nuts [3 pcs.]

NOTE:

• Install the bolt for mounting hole A before installing the oil pan. (Refer to “3-3. Installing the oil pan.”)

• Mounting hole B is used to install the gas spring supports with the bolt, plain washer, spring washer and nut. (Refer to "3-4. Installing the machine head".)

* Use a commercially-available foot switch and connecting rod. * If changing the mounting position for the treadle unit, use the accessory bolts, plain washers, spring washers and nuts.

<Foot switch operating method>

When the foot switch is depressed to the 1st step, the work clamp is lowered, and when it is depressed to the 2nd step, the sewing machine starts sewing.

1st step 2nd step

4441Q

4921Q

3-8. Installing the two-pedal foot switch (pneumatic work clamp specifications)

(1) Foot switch

Insert the connector for the foot switch (1) into P6 (FOOT) on the main PCB. (Refer to "3-9. Connecting the cords".)

* Be sure to make the ground connection. (Refer to “3-10. Connecting the ground wire”.)

<Foot switch operating method>

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

* The work clamp lowering method can be changed using memory switch No. 002. (Refer to "6-3. List of memory switch settings.")

	Work clamp switch (2-step)
	Start switch
2972B	4923Q

11	BAS-300G, BAS-311G, BAS-326G

					3. INSTALLATION
	3-9. Connecting the cords
				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 right arrow and pass
					the cord bundle through the opening.
				4.	Securely connect the connectors as
					indicated in the table below.
				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.
			4924Q

<Main PCB>

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".)

Lock the cord clamp securely.

	Connector	Connection location on			Cord clamp
			main PCB
	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	P5	(P-ENC)		(3)
	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 (pneumatic work clamp	P12 (AIR1)			(4)
	specifications)
	Programmer relay harness 8-pin	P7	(PRG)		(3)
1842B	Solenoid selection harness 4-pin	P3 CUTTER
				(Continued on next page)

BAS-300G, BAS-311G, BAS-326G

12

3. INSTALLATION

<Power supply motor PCB>

<Removing>

Press the tab.

<Securing>

<PMD PCB>
			NOTE:
			Route the X, Y and work clamp pulse motor
			harnesses so that they do not touch the
			PMD PCB.
			*1 :Be sure to make the ground connection.
			(Refer to "3-10. Connecting the ground
			wire".)
	Connector	Connection location on		Cord clamp/cable tie
		power supply motor PCB
	Machine head memory 7-pin	P3	(HEAD-M)	(4)
	Upper shaft motor 3-pin	P4	(UVW)	(5)
	Synchronizer 14-pin	P5	(SYNC)	(5), (6)
	Connector	Connection location on		Cable tie
			PMD PCB
	Work clamp pulse motor 4-pin black	P3	(PPM)	(5), (6)
	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)
1843B	X pulse motor 4-pin white	P10 (XPM)		(5), (6)
				(Continued on next page)

13	BAS-300G, BAS-311G, BAS-326G

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.

4927Q

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.

2973B

(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) [for pneumatic work clamp specifications only]

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

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

BAS-300G, BAS-311G, BAS-326G

14

3. INSTALLATION

3-11. Connecting the power cord

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.

<Single-phase specifications>

Green and yellow wire (ground wire)

<Three-phase specifications>

Green and yellow wire (ground wire)

5239Q

3-12. Installing the cotton stand

2974B

(1) Cotton stand

NOTE:

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

15	BAS-300G, BAS-311G, BAS-326G

3. INSTALLATION

3-13. Installing the pneumatic unit (pneumatic work clamp specifications)

Install underneath the work table.

(1) Solenoid valve assembly

(2) Washers [2 pcs.]

(3) Wood screws [2 pcs.]

(4) Rubber hose

After installing the pneumatic unit, adjust the air pressure.

(Refer to "10-16. Adjusting the air pressure".)

NOTE:

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

1904B

Connect each air tube to the position with the corresponding number.

Cylinder R

Cylinder L

Upper knob

Lower knob

Manual button

<Adjusting the speed controller>

You can use the valve knobs to adjust the lifting and lowering speeds.

The valve knobs should be adjusted so that the left and right sides of the work clamp operate at the same speed.

•When the upper knob is tightened, the lifting speed becomes slower. When it is loosened, the lifting speed becomes faster.

•When the lower knob is tightened, the lowering speed becomes slower. When it is loosened, the lowering speed becomes faster.

You can operate the work clamp while the power is turned off by pressing the manual button.

5220Q 1905B

BAS-300G, BAS-311G, BAS-326G

16

3. INSTALLATION

3-14. Installing the eye guard

CAUTION

Attach all safety devices before using the sewing machine.

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

(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

2367B

3-15. Installing the motor cover

2975B

(1)Motor cover R

(2)Screws [4 pcs.]

(3)Motor cover L

(4)Screws [4 pcs.]

(5)Motor cover

(6)Screws [4 pcs.]

NOTE:

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

2976B

17	BAS-300G, BAS-311G, BAS-326G