Brother FA-V92A Owner's Manual

INSTRUCTION MANUAL

S-7220B

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

SINGLE NEEDLE DIRECT DRIVE NEEDLE FEED LOCK STITCHER WITH THREAD TRIMMER

Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions 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, 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.

S-7220B

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

CAUTION

Symbols

· · · · ·

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

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

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”.)

S-7220B

i

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

DANGER

CAUTION

Environmental requirements

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

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 46 kg. The installation should be carried out by two or more people.

Do not connent the power cord until installation is complete. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Turn off the power switch before inserting or removing the plug, otherwise damage to the control box could 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 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

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.

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

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

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

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S-7220B

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. The machine may operate if the treadle is depressed 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

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

Turn off the power switch before carrying out cleaning. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

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.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

If an error occurs in machine, 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.

Cleaning

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

Use only the proper replacement parts as specified by Brother.

Maintenance and inspection

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

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

Turn off the power switch and disconnect the power cord from the wall outlet at the following times, otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.

 When carrying out inspection, adjustment and

maintenance

 When replacing consumable parts such as the

rotary hook

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

S-7220B

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

Use only the proper replacement parts as specified by Brother.

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

Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty.

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[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

3

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

Safety devices: (A) Finger guard (B) Thread take-up cover

4

Direction of operation

Oil pan

Control box

3722M

iv

S-7220B

1. NAMES OF MAJOR PARTS

(1) Bobbin winder (2) Thread wiper (3) Lifting lever (4) Quick reverse (Actuator) (5) Presser foot (6) Control box (7) Control box panel (8) Knee lifter assembly

(9) Power switch (10) Oil gauge window (11) Reverse lever (12) Stitch length dial (13) Machine pulley (14) Operation panel (Models with operation panel)

(15) Cotton stand

Safety devices

(16) Thread take-up cover (17) Finger guard

3723M

1

S-7220B

2. MACHINE SPECIFICATIONS

4 Quick reverse O Thread wiper O

0 3

Lubrication type Minimum lubrication Semi dry

3 5 Use For medium-weight

materials

-403 -433 -405 Max. sewing speed 5,000 rpm*1 4,000 rpm 4,000 rpm*2 Start backtacking and continuous backtacking speed 220 - 3,000 rpm End backtacking speed 1,800 rpm Max. stitch length 4.5 mm 5.5 mm Presser foot

height Feed dog height 1.0 mm 1.2 mm Needle (DB×1, DP×5)

Motor AC servo motor (4-pole, 450W) Control circuit Microprocessor

*1…When sewing at speeds of 4,000 rpm or higher, set the stitch length to 3.5 mm or less. *2…When sewing at speeds of 3,000 rpm or higher, set the stitch length to 4.5 mm or less.

Lifting lever 6 mm Knee lifter 16 mm

#11 - #18 #19 - #22

Rotary hook

-403, -433 -405

Lubricated /

for medium materials

Lubricating oil

-403, -405 -433 Rotary hook High-speed spindle Needle bar

High-speed spindle

For heavy-weight materials

Lubricated /

for heavy materials

Special Brother grease

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2

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 weighs approximately 46 kg. The installation should be carried out by two or more people.

About the machine set-up location

 Do not set up this sewing machine near other equipment such as

televisions, radios or cordless telephones, otherwise such equipment may be affected by electronic interference from the sewing machine.

 The sewing machine should be plugged directly into an AC wall

outlet. Operation problems may result if extension cords are used.

Do not connect the power cord until installation is complete. The machine may operate if the treadle is depressed by mistake, which could result in injury.

Use both hands to hold the machine head when tilting it back or returning it to its original position. If only one hand is used, the weight of the machine head may cause your hand to slip, and your hand may get caught.

2086M

Carrying the machine

 The machine should be carried by the arm by two people as

shown in the illustration.

* Hold the motor cover (A) by hand also so that the pulley does

not rotate.

Tilting back the machine head

 Hold section (B) with your foot so that the table does not move,

and then push the arm with both hands to tilt back the machine head.

Returning the machine head to the upright position

1. Clear away any tools, etc. which may be near the table holes.

2. While holding the face plate with your left hand, gently return the machine head to the upright position with your right hand.

3631M

2088M

2089M

3

S-7220B

3. INSTALLATION

3-1. Table processing diagram

 The top of the table should be 40 mm in thickness and should be strong enough to hold the weight and with-stand the

vibration of the sewing machine.

 Drill holes as indicated in the illustration below.

Control box mounting hole

Head rest hole

Cotton stand hole

Cord hole

2090M

3-2. Installation

2091M

1. Control box

(1) Control box (2) Bolts [3 pcs] (3) Nuts [3 pcs] (4) Spring washers [3 pcs] (5) Washers [3 pcs]

2. Connecting rod

(6) Connecting rod (7) Nut

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4

3. INSTALLATION

Operator

5

S-7220B

2092M

3632M

2094M

3. Power switch

(1) Power switch (2) Screws [2 pcs]

4. Oil pan

(1) Head cushions (left) [2 pcs] (2) Head cushions (right) [2 pcs] (3) Oil pan

5. Rubber cushions

(1) Rubber cushions [2 pcs] (2) Nails [4 pcs]

6. Knee lifter complying bar

(3) Knee lifter complying bar

3. INSTALLATION

7. Machine head

(1) Hinges [2 pcs] (2) Machine head (3) Head rest

NOTE:

Tap the head rest (3) securely into the table hole. If the head rest (3) is not pushed in as far as it will go, the machine head will not be sufficiently stable when it is tilted back.

3724M

8. Operation panel

(1) Rubber cushion

(Remove the seal (2), and then attach the rubber cushion (1) to the panel setting plate (3).)

(4) Operation panel (5) Washers [2 pcs.] (6) Spring washers [2 pcs.] (7) Screws [2 pcs.]

(The washers (5), spring washers (6) and screws (7) are used to secure the side plate)

3725M

9. Sticker (Remove)

(1) Sticker

S-7220B

2097M

6

3. INSTALLATION

10. Cotton stand

(1) Cotton stand

NOTE:

Securely tighten the nut (4) so that the two rubber cushions (2) and the washer (3) are securely clamped and so that the cotton stand (1) does not move.

3636M

11. Knee lifter plate

(1) Knee lifter plate (2) Bolt

* Loosen the bolt (3) and move the

knee lifter plate (1) to a position where it is easy to use.

3637M

1. Turn the machine pulley so that the feed dog is below the top of the needle plate.

2. Lower the presser foot (5) by using the lifting lever (4).

3726M

3781M

3. Loosen the nut (6).

4. Turn the screw (8) to adjust so that the amount of play in the knee lifter (7) is approximately 2 mm when the knee lifter plate (1) is gently pressed.

5. Securely tighten the nut (6).

The height of the presser foot can be adjusted to a maximum of 16 mm.

1. Loosen the nut (9).

2. Turn the adjusting screw (10) to adjust so that the presser foot (5) is at the desired position within a distance of 16 mm of the needle plate when the knee lifter plate (1) is fully pressed.

3. After adjustment is completed, securely tighten the nut

Within 16 mm

7

3727M

S-7220B

(9).

3-3. Lubrication

Do not connect the power cord until lubrication has been completed, otherwise the machine may operate if the treadle is depressed by mistake, which could result in injury.

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

When cutting the nozzle of the oil tank, hold the base of the nozzle securely. If you hold the end of the nozzle, injury from the scissors may result.

3. INSTALLATION

CAUTION

3640M

Upper reference line

Lower reference line

3728M

 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 (Nisseki Mitsubishi 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. Hold the base of the nozzle on the accessory oil tank (1), and then use scissors to cut 3 - 5 mm off the end of the nozzle.

2. Tilt back the machine head.

3. Remove the rubber cap (2), and pour 120ml of lubricating oil into the oil tank (3). (Use the upper reference line (4) as a guide when pouring.)

4. Replace the rubber cap (1).

5. Return the machine head to its original position.

6. Check that the oil gauge (6) comes to the upper reference line in the oil gauge window (5).

If the oil gauge (6) drops below the lower reference line (or if the oil level drops below the lower reference line (7) on the oil tank (3)), be sure to replenish the oil.

S-7220B

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3. INSTALLATION

3-4. Connecting the cords

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

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

Do not connect the power cord until all cords have been connected. The machine may operate if the treadle is depressed 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.

3-4-1. Opening the control box cover

3-4-2. Connecting the cords

3642M

(1) Screw (2) Cover

1. Sewing machine cords

3729M

9

S-7220B

Push in securely until the tabs (5) engage.

Cords

Press the tab.

3131M

3132M

3645M

3. INSTALLATION

(1) 7-pin head detector unit connector (2) 10-pin operating panel connector

(Models with operation panel) (3) 14-pin encoder connector (4) 14-pin machine connector

Refer to the following page for the 4-pin motor connector.

2. Binding the cords

(1) Repeat cable tie (2) Wire clip

NOTE:

 Bind the cords in such a way that the

connector does not get pulled out.

 All cords that come out from the

control box should be secured to the cord holder (3) using the repeat cable tie (1), otherwise vibration from the sewing machine may cause the cords to become disconnected, which can cause problems with the operation of the control box.

S-7220B

10

3. INSTALLATION

<Single-phase> <Three-phase>

Green and yellow wire (ground wire)

Ground symbol

Oil pan

2111M

2112M

2113M

3. Other cords

(1) 6-pin power supply connector (2) 4-pin motor connector (3) Wire clip (4) Power cord

<For single-phase specifications> Insert the power cord plug (5) into a wall outlet.

1. Attach an appropriate plug to the

power cord (4). (The green and yellow wire is the ground wire.)

2. Insert the plug into a

properly-grounded AC power supply.

NOTE:

Do not use extension cords, otherwise machine operation problems may result.

4. Ground wire

(1) Ground wire (2) Screw [With washer] (3) Screw

11

S-7220B

3-5. Test operation (Operating the treadle)

CAUTION

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.

3. INSTALLATION

3648M

2114M

3730M

3647M

1. Turning on the power

Press the ON power switch (1). The power indicators (2) and (3) will illuminate.

NOTE: When turning the power switch on for the first time

The treadle and the operation panel will not operate for approximately four seconds after the power switch is turned on. After approximately 4 seconds, “iniT rPM” (speed initialization) or “iniT ALL” (full initialization) will be displayed on the operation panel. After “iniT rPM” or “iniT ALL” is displayed, the treadle can be operated. (The operation panel will change to the stitch number display.) This message will not appear the second and subsequent times that the power switch is turned on.

Press the ON power switch (1). The power indicators (3) and (4) will illuminate.

NOTE: When turning the power switch on for the first time

The treadle and control box panel cannot be operated for approximately 4 seconds after the power switch has been turned on. After approximately 4 seconds, “Ar (All reset)” may appear in the stitch number display (5). If this happens, turn the power switch off and then back on again. After that, normal treadle operation will then be possible.

2. Test operation

1. Check that the machine sews at low speed when the treadle (1) is gently pressed to position (B).

2. Then check that it sews at high speed when the treadle (1) is gently pressed to position (C).

3. After pressing the treadle (1) forward, check that the needle is lowered to the top of the needle plate when the treadle (1) is returned to the neutral position (A). (when needle down stopping has been set.)

4. If the treadle (1) is pressed to position (D), thread trimming is carried out and the needle then rises above the needle plate and stops.

2117M

S-7220B

12

4. PREPARATION BEFORE SEWING

4-1. Installing the needle

CAUTION

Turn off the power switch before installing the needle. The machine may operate if the treadle is depressed by mistake, which could result in injury.

1. Turn the machine pulley to move the needle bar to its highest position.

2. Loosen the screw (1).

3. Insert the needle (2) in a straight line as far as it will go, making sure that the long groove on the needle is at the left, and then securely tighten the screw (1).

3731M 3732M

Long groove

4-2. Removing the bobbin case

Front

CAUTION

Turn off the power switch before removing the bobbin case. The machine may operate if the treadle is depressed by mistake, which could result in injury.

3733M

3734M

For thick materials

0798M 2121M

1. Turn the machine pulley to raise the needle until it is above the needle plate.

2. Pull the latch (1) of the bobbin case upward and then remove the bobbin case.

3. The bobbin (2) will come out when the latch (1) is released.

* There is an anti-spin spring (3) inside the bobbin case.

The anti-spin spring (3) prevents the bobbin from racing at times such as during thread trimming.

* Use bobbins (2) made of light alloy as specified by

BROTHER.

13

S-7220B

4-3. Winding the lower thread

CAUTION

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

4. PREPARATION BEFORE SEWING

3735M

More thread

2123M 2124M

Less thread

1. Turn on the power switch.

2. Place the bobbin (1) onto the bobbin winder shaft (2).

3. Wind the thread several times around the bobbin (1) in the direction indicated by the arrow.

4. Push the bobbin presser arm (3) toward the bobbin(1).

5. Raise the presser foot with the lifting lever.

6. Depress the treadle. Lower thread winding will then start.

7. Once winding of the lower thread is completed, the bobbin presser arm (3) will return automatically.

8. After the thread has been wound on, remove the bobbin and cut the thread with the knife (4).

* Loosen the screw (5) and move the bobbin presser (6) to

adjust the amount of thread wound onto the bobbin.

NOTE:

The amount of thread wound onto the bobbin should be a maximum of 80 % of the bobbin capacity.

4-4. Installing the bobbin case

CAUTION

Turn off the power switch before installing the bobbin case. The machine may operate if the treadle is depressed by mistake, which could result in injury.

0802M 2125M

3736M

1. Turn the machine pulley to raise the needle until it is above the needle plate.

2. While holding the bobbin so that the thread winds to the right, insert the bobbin into the bobbin case.

3. Pass the thread through the slot (1) and under the tension spring (2), and then pull it out from the thread guide (3).

4. Check that the bobbin turns clockwise when the thread is pulled.

5. Hold the latch (4) on the bobbin case and insert the bobbin case into the rotary hook.

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14

4. PREPARATION BEFORE SEWING

4-5. Threading the upper thread

CAUTION

Turn off the power switch before threading the upper thread. The machine may operate if the treadle is depressed by mistake, which could result in injury.

4-6. Adjusting the stitch length

Unlocked

Locked

3737M

3738M

Turn the machine pulley and raise the thread take-up (1) before threading the upper thread. This will make threading easier and it will prevent the thread from coming out at the sewing start.

1. Push the dial lock lever (1) up until it clicks to release the lock.

2. Turn the stitch length dial (2) clockwise or counterclockwise so that the desired stitch length is at the uppermost position on the dial.  The larger the number, the longer the stitch length will

be. (The numbers on the dial are for use as a guide. The length of the finished stitches may vary depending on the type and thickness of material being sewn. Adjust while looking at the finished stitches.)

 When turning the stitch length dial (2) from a larger

setting to a smaller setting, it will be easier to turn the dial if the reverse lever (3) is pushed to the halfwaydown position.

3. Push the dial lock lever (1) down firmly to lock it.

* Check that the stitch length dial (2) does not rotate.

15

S-7220B

4-7. Using the thread wiper

2129M

4-8. Using the knee lifter

2131M

3739M

3740M

4. PREPARATION BEFORE SEWING

Press the thread wiper switch (1) to the side. If this is done, the thread wiper (2) will operate after the thread is trimmed.

2209M

The presser foot (2) can be raised by pressing the knee lifter plate (1).

S-7220B

16

Brother FA-V92A Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY INSTRUCTIONS

CONTENTS

1. NAMES OF MAJOR PARTS

2. MACHINE SPECIFICATIONS

3. INSTALLATION

3-1. Table processing diagram

3-2. Installation

3-3. Lubrication

3-4. Connecting the cords

3-4-1. Opening the control box cover

3-4-2. Connecting the cords

3-5. Test operation (Operating the treadle)

4. PREPARATION BEFORE SEWING

4-1. Installing the needle

4-2. Removing the bobbin case

4-3. Winding the lower thread

4-4. Installing the bobbin case

4-5. Threading the upper thread

4-6. Adjusting the stitch length

4-7. Using the thread wiper

4-8. Using the knee lifter