Brother BAS-326A- User Manual

Page 2 - SAFETY INSTRUCTIONS; [1] Safety indications and their meanings; DANGER; Symbols

BAS-311G, BAS-326G i This service manual is intended for BAS-311G, BAS-326G; be sure to read the BAS-311G, BAS-326G instruction manual before this manual. Carefully read the “SAFETY INSTRUCTIONS” below and the whole of this manual to understand this product before you start maintenance. As a result ...

Page 3 - ii; Environmental requirements; Installation

BAS-311G, BAS-326G ii [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. CAUTION Environme...

Page 4 - iii; CAUTION; Sewing

BAS-311G, BAS-326G iii 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 gogg...

Page 5 - iv

BAS-311G, BAS-326G iv [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 careful...

Page 6 - CONTENTS

BAS-311G, BAS-326G CONTENTS 1. SPECIFICATIONS ............................. 1 2. FUNCTION SETTINGS...................... 2 2-1. List of special functions when power is turned on ................................................... 2 2-2. List of advanced functions......................... 3 2-3. Memo...

Page 9 - FUNCTION SETTINGS; -1. List of special functions when power is turned on

2. FUNCTION SETTINGS 2 BAS-311G, BAS-326G 2. FUNCTION SETTINGS 2-1. List of special functions when power is turned on 1 Memory switch setting mode (Standard) Refer to the Instruction Manual. 6 Output checking function Refer to “2-9. Output checking method”. 2 Memory switch setting mode (Advanced) Re...

Page 30 - Sewing machine internal memory

3. READING / WRITING DATA 23 BAS-311G, BAS-326G 3. READING / WRITING DATA 3-1. Handling data Program numbers (100 − 999) are read from CF cards. Program numbers (0 − 99) are older BAS-300 series, BAS-300A series and BAS-300E/F series data and can be read from floppy disks. However, when memory switc...

Page 38 - -13. Reading sewing data from floppy disks

3. READING / WRITING DATA 31 BAS-311G, BAS-326G 3-12. Writing error log data to CF card 1 Select the [w 8] data read/write mode. 2 Writing Press the R/W key. • The buzzer will sound and the error log data will be copied from the internal memory onto the CF card. 3 End data read/write mode TEST indic...

Page 39 - -14. Writing sewing data to floppy disks

3. READING / WRITING DATA 32 BAS-311G, BAS-326G 4 Loading Press the R/W key. • The buzzer will sound and the selected sewing data will be loaded from the floppy disk and copied into the sewing machine's internal memory. • The program numbers that have been read will appear in the menu display. * If ...

Page 40 - -15. Reading extended option output data from a CF card

3. READING / WRITING DATA 33 BAS-311G, BAS-326G 4 Writing Press the R/W key. • The buzzer will sound and the selected sewing data will be copied from the internal memory onto the floppy disk. • The program numbers that have been written will appear in the menu display. * If there is a large volume o...

Page 41 - -16. Writing extended option output data to CF cards; -17. Reading extended option output data from floppy disks

3. READING / WRITING DATA 34 BAS-311G, BAS-326G 3-16. Writing extended option output data to CF cards 1 Select the [w 12] data read/write mode. 2 Writing Press the R/W key. • The buzzer will sound and the extended option output data will be copied from the internal memory onto the CF card. 3 End dat...

Page 42 - MECHANICAL DESCRIPTIONS; -2. Lower shaft and shuttle race mechanisms

4. MECHANICAL DESCRIPTIONS BAS-311G, BAS-326G 35 4. MECHANICAL DESCRIPTIONS 4-1. Needle bar and thread take-up mechanisms 4-2. Lower shaft and shuttle race mechanisms 1. Motor assy 2. Upper shaft 3. Crank rod assy 4. Rock gear 5. Lower gear 6. Lower shaft 7. Driver 8. Shuttle hook 1. Motor assy 2. U...

Page 44 - -5. Intermittent presser foot lifter mechanism

4. MECHANICAL DESCRIPTIONS BAS-311G, BAS-326G 37 4-4. Work clamp lifter mechanism (Pneumatic specifications) 4-5. Intermittent presser foot lifter mechanism 1. Air cylinder 2. Work clamp lifter lever 3. Work clamp lifter lever 4. Work clamp 1. Work clamp pulse motor 2. Work clamp driving gear 3. Wor...

Page 45 - -6. Intermittent presser foot stroke mechanism

4. MECHANICAL DESCRIPTIONS BAS-311G, BAS-326G 38 4-6. Intermittent presser foot stroke mechanism 1. Motor assy 2. Upper shaft 3. Stepping clamp cam 4. Stepping clamp connecting rod 5. Stepping clamp arm R 6. Stepping clamp arm F 7. Stepping clamp link A 8. Stepping clamp link A 9. Stepping clamp lin...

Page 46 - Y direction

4. MECHANICAL DESCRIPTIONS BAS-311G, BAS-326G 39 4-7. Feed mechanism Sewing patterns are created through combinations of X and Y movements. 1. X-feed motor assy 2. Gear 3. X-feed gear 4. Y-ball spline 5. X-GT belt 6. Feed bracket X 1. Y-feed motor L assy 2. Gear 3. Y-feed gear 4. Y-GT belt 5. Feed b...

Page 51 - Pneumatic specifications

5. DISASSEMBLY BAS-311G, BAS-326G 44 5-3. Work clamp arm mechanism 1. Set screw 2. Needle 3. Needle bar thread guide 4. Bolts [4 pcs] 5. Work clamp assy 6. Bolts with washer [2pcs] 7. Feed plate Pneumatic specifications 5055Q 5054Q

Page 98 - -4. Adjusting the needle bar lift amount

7. ADJUSTMENT BAS-311G, BAS-326G 91 7-3. Adjusting the needle bar height Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber plug (2), loosen the screw (3) and then move the needle bar up or down to adjust so that the second reference line from the bottom of...

Page 99 - -7. Adjusting the shuttle race thread guide

7. ADJUSTMENT BAS-311G, BAS-326G 92 7-6. Adjusting the needle clearance Turn the machine pulley to align the tip of the rotary hook with the center of the needle, and then loosen the set screw (1) and turn the eccentric shaft (2) to adjust so that the clearance between the needle and the rotary hook...

Page 100 - -9. Adjusting the position of the movable knife

7. ADJUSTMENT BAS-311G, BAS-326G 93 7-9. Adjusting the position of the movable knife 1. Open the top cover and tilt back the machine head. 2. Turn the pulley (1) by hand to lower the needle bar to its lowest position, and push the thread trimmer solenoid (2) as far as it will go. 3. With the collar ...

Page 102 - -10. Replacing the movable and fixed knives

7. ADJUSTMENT BAS-311G, BAS-326G 95 7-10. Replacing the movable and fixed knives 1. Loosen the two bolts (1) and then remove the feed plate (2). 2. Open the shuttle race cover, remove the two screws (3) and the two flat screws (4), and then remove the needle plate (5). 3. Remove the movable knife (6...

Page 104 - -12. Presser foot installation position

7. ADJUSTMENT BAS-311G, BAS-326G 97 7-11. Adjusting the thread wiper 1. Loosen the two screws (3) and shift the entire solenoid setting plate (4) up or down to adjust so that the thread wiper (2) is 15 mm in front of the needle center when the plunger (1) of the thread wiper solenoid is driven to th...

Page 107 - -14. Adjusting the work clamp lift amount

7. ADJUSTMENT BAS-311G, BAS-326G 100 7-14. Adjusting the work clamp lift amount <Solenoid specifications> The operation panel settings can be used to adjust the height to within 15 − 25 mm. (Refer to "5-7. Setting the work clamp lift amount.") <Pneumatic specifications> The maxim...

Page 108 - -16. Adjusting the thread trimmer cam position

7. ADJUSTMENT BAS-311G, BAS-326G 101 7-16. Adjusting the thread trimmer cam position 1. Remove the top cover. 2. Loosen the two set screws (1), and then adjust the position of the thread trimmer cam (3) so that the distance between the edge of the collar shaft (2) and the edge of the thread trimmer ...

Page 109 - -18. Adjusting the tension release amount

7. ADJUSTMENT BAS-311G, BAS-326G 102 <Y-GT belt> 1. Move the X feed bracket (1) so that it is in the middle of the sewing area in the Y direction and at the left edge of the sewing area in the X direction. 2. Loosen the two bolts (3) of the Y-pulley bracket (2), and then provisionally tighten ...

Page 110 - -19. Adjusting the backlash of the lower shaft gear

7. ADJUSTMENT BAS-311G, BAS-326G 103 7-19. Adjusting the backlash of the lower shaft gear 1. Gently tilt back the machine head. 2. Remove the five screws (1) and three flat screws (2), and then remove the oil cover (3). 3. Remove the four screws (4) and Y-belt cover (5). 4. Loosen the two set screws...

Page 114 - -21. Adjusting the needle up stop home position

7. ADJUSTMENT BAS-311G, BAS-326G 107 7-21. Adjusting the needle up stop home position 1. Remove the needle and the needle bar thread guide. 2. Turn the pulley to move the needle bar (1) to the lowest position. 3. Remove the rubber cap (2) from the face plate, and then loosen the screw (3) of the nee...

Page 115 - -22. Adjusting the needle up stop position

7. ADJUSTMENT BAS-311G, BAS-326G 108 7-22. Adjusting the needle up stop position Use the operation panel to adjust the needle up stop position so that the needle bar (1) is lowered 6.2 – 6.7 mm from its highest position (near the highest stop position for the thread take-up). NOTE: When the four bol...

Page 117 - ELECTRICAL MECHANISM; -1. Precautions while carrying out adjustments

8. ELECTRICAL MECHANISM 110 BAS-311G, BAS-326G 8. ELECTRICAL MECHANISM 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 sev...

Page 118 - -2. Inside the control box and operation panel structure

8. ELECTRICAL MECHANISM 111 BAS-311G, BAS-326G 8-2. Inside the control box and operation panel structure Main P.C. board Secured to the side. This is the P.C. board that controls sewing machine operation. PMD P.C. board Secured to the base plate. This P.C. board drives the pulse motors and solenoids...

Page 144 - TABLE OF ERROR CODES

9. TABLE OF ERROR CODES BAS-311G, BAS-326G 137 9. TABLE OF ERROR CODES 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 sev...

Page 152 - SERVICE MANUAL

SERVICE MANUAL 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 Printed in Japan BAS-311G, BAS-326G I5060885B 2005.07. B (1) http://www.brother.com/

Brother BAS-326A- User Manual

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