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Brother BAS-311G Warning labels, Motor cover, Tension release, solenoid cover, Inner cover L

Models: BAS-311G

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[3] Warning labels

[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

3 Motor cover

4

5

2

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.

Direction of operation

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

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

Thread take-up cover

Motor cover L

Inner cover R

Eye guardOuter cover

Fixed cover R

Motor cover R

Finger guard

	Gas spring support cover
5222Q	4905Q

iv	BAS-311G, BAS-326G

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Brother BAS-311G Warning labels, Motor cover, Tension release, solenoid cover, Inner cover L, Outer cover, Fixed cover L

Contents

Please read this manual before making any adjustments SERVICE MANUALBAS-311G BAS-326G PROGRAMMABLE ELECTRONIC PATTERN SEWER1 Safety indications and their meanings SAFETY INSTRUCTIONSSymbols Indications2 Notes on safety InstallationDANGER Environmental requirementsMaintenance and inspection CleaningSewing If an error occurs in machine operation, or if abnormalMotor cover 3 Warning labelsTension release solenoid coverSPECIFICATIONS CONTENTSFUNCTION SETTINGS DISASSEMBLY7. ADJUSTMENT 6. ASSEMBLY9. TABLE OF ERROR CODES 10. TROUBLESHOOTING1. SPECIFICATIONS 1. SPECIFICATIONS2. FUNCTION SETTINGS 2. FUNCTION SETTINGS2-1. List of special functions when power is turned on 2. FUNCTION SETTINGS 2-2. List of advanced functionsWhen SPEED indicator is illuminated 4550Q2. FUNCTION SETTINGS 2-3. Memory switch setting method Advancedmemory switches that have been changed from default settings2. FUNCTION SETTINGS 2-4. List of memory switch settingsInitial value rangeWork clamp settings 2. FUNCTION SETTINGSFor solenoid specifications 1 pedal For pneumatic specifications 2 pedalThread winding 2. FUNCTION SETTINGSSewing machine motor settings 2. FUNCTION SETTINGSFeed settings 2. FUNCTION SETTINGSUser program settings 2. FUNCTION SETTINGSOperation panel settings Device settings 2. FUNCTION SETTINGSData editing settings 2. FUNCTION SETTINGS Error processing settings 2. FUNCTION SETTINGSMaintenance settings Specifications and destination settings2. FUNCTION SETTINGS 2-5. Setting the work clamp modeUnique machine settings Solenoid specifications, single pedal standard operations2. FUNCTION SETTINGS 2-6. Stitch counter checking methodPneumatic specifications, 2 pedal standard operations Pneumatic specifications, 2 pedal sequence operationE − − − 2-7. Error history checking method2. FUNCTION SETTINGS 2. FUNCTION SETTINGS 2-8. Input checking methodInput check list Name− − − − 2. FUNCTION SETTINGS2. FUNCTION SETTINGS 2. FUNCTION SETTINGS 2-9. Output checking method4567Q 4441Q 4953Q2. FUNCTION SETTINGS 2. FUNCTION SETTINGS 2-10. Software version checking methodPanel CPU Programmer3-1. Handling data 3. READING / WRITING DATASewing machine internal memory 3. READING / WRITING DATA3. READING / WRITING DATA 3-2. Notes on handling CF cards sold separately3-3. Structure of a CF card folder Turn on the power switch 3-4. Data read/write modeSwitch to data read/write mode 3. READING / WRITING DATAWhen memory switch No. 755 is ON 3-5. Reading sewing data from CF cards3. READING / WRITING DATA End data read/write mode3-6. Writing sewing data to CF cards When memory switch No. 755 is ON3. READING / WRITING DATA Select the w 2 data read/write mode3-8. Writing memory switch data to CF cards 3-7. Reading memory switch data from CF cards3. READING / WRITING DATA End data read/write mode3-10. Writing user program data to CF cards 3-9. Reading user program data from CF cards3. READING / WRITING DATA End data read/write mode3. READING / WRITING DATA 3-11. Updating the control programRestoring the control program if an error occurs during updating 3-13. Reading sewing data from floppy disks 3-12. Writing error log data to CF card3. READING / WRITING DATA End data read/write mode3. READING / WRITING DATA 3-14. Writing sewing data to floppy disks5 End data read/write mode 1 Insert the floppy disk into the floppy disk drive5 End data read/write mode 3-15. Reading extended option output data from a CF card3. READING / WRITING DATA 3-17. Reading extended option output data from floppy disks 3-16. Writing extended option output data to CF cards3. READING / WRITING DATA 3 End data read/write mode4-1. Needle bar and thread take-up mechanisms 4. MECHANICAL DESCRIPTIONS4-2. Lower shaft and shuttle race mechanisms 4. MECHANICAL DESCRIPTIONS4. MECHANICAL DESCRIPTIONS 4-3. Work clamp lifter mechanism Solenoid specifications4-5. Intermittent presser foot lifter mechanism 4-4. Work clamp lifter mechanism Pneumatic specifications4. MECHANICAL DESCRIPTIONS 5045Q4. Stepping clamp connecting rod 5. Stepping clamp arm R 4-6. Intermittent presser foot stroke mechanism4. MECHANICAL DESCRIPTIONS 1. Motor assy 2. Upper shaft 3. Stepping clamp camX direction 4-7. Feed mechanismY direction 4. MECHANICAL DESCRIPTIONS11. Movable knife lever 12. Movable knife connecting plate 4-8. Thread trimmer mechanism4. MECHANICAL DESCRIPTIONS 1. Thread trimmer solenoid 2. Solenoid lever 3. Pushing lever4-10. Thread wiper mechanism 4-9. Tension release mechanism4. MECHANICAL DESCRIPTIONS BAS-311G, BAS-326G5. DISASSEMBLY 5. DISASSEMBLY5-1. Covers 5. DISASSEMBLY 5-2. Thread wiper mechanism2. STOP switch harness Pull out 3. Bolt 4. Plain washer 1. Thread wiper solenoid harness Pull out5-3. Work clamp arm mechanism Pneumatic specifications5. DISASSEMBLY BAS-311G, BAS-326GPresser bar Pull downward from presser bar clamp 5-4. Intermittent presser foot lifter mechanism5. DISASSEMBLY 5. DISASSEMBLY 5-5. Needle bar mechanism5092Q 5093Q5094Q 5-6. Upper shaft mechanism5. DISASSEMBLY 5. DISASSEMBLY 5-7. Lower shaft mechanism5. DISASSEMBLY 5-8. Feed coversBAS-311G, BAS-326G 5101Q5. DISASSEMBLY 5-9. Feed mechanism26. Bolts with washer 3 pcs 27. X-feed motor assy 5. DISASSEMBLY44. Bolts 10 pcs 45. Flat screws 8 pcs 46. Feed bracket 5. DISASSEMBLY47. Bolts 16 pcs 48. X-LM guide 2 pcs 49. Bolts 2 pcs 50. X-belt holder 51. X-belt holder plate 52. Bolts 2 pcs5108Q 5-10. Work clamp lifter mechanism Solenoid specifications5. DISASSEMBLY 5. DISASSEMBLY 5-11. Work clamp lifter mechanism Pneumatic specifications5-13. Intermittent presser foot lifter mechanism 5-12. Tension release mechanism5. DISASSEMBLY Solenoid setting plateThread trimmer collar 5-14. Thread trimmer mechanism5. DISASSEMBLY 5. DISASSEMBLY 5-15. Shuttle hook mechanism6. ASSEMBLY 6. ASSEMBLY6-1. Thread trimmer mechanism Apply grease 6. ASSEMBLYBolts with washer 2 pcs 4853Q6-3. Tension release mechanism 6-2. Intermittent presser foot lifter mechanism6. ASSEMBLY Stepping clamp lifter rod adjustmentIndex mark 6-4. Work clamp lifter mechanism Solenoid specifications6. ASSEMBLY Work clamp lifter plate assy 6. ASSEMBLYAlign 5162QHook the spring into the arm hole as shown in the illustration 6. ASSEMBLY6. ASSEMBLY 6-5. Work clamp lifter mechanism Pneumatic specifications5168Q 5169Q5170Q 6. ASSEMBLY5171Q 5172Q6. ASSEMBLY 6-6. Feed mechanismFlat screws 8 pcs 6. ASSEMBLY5176Q 5215Q5179Q 6. ASSEMBLY5178Q Install so that the backlash is 0.01 6. ASSEMBLYInstall so that the backlash is 0.01 53. X-feed motor assy 54. Bolts with washer 3 pcs Temporarily tightenMeasurement position 6. ASSEMBLYX-GT belt tension adjustment 5184Q 6. ASSEMBLY Y-GT belt tension adjustmentInside X-LM guide installation 6. ASSEMBLYRight Y-LM guide installation 5185Q6. ASSEMBLY 6-7. Feed coversNeedle plate 6. ASSEMBLYBAS-311G, BAS-326G 5191Q6. ASSEMBLY 6-8. Upper shaft mechanismInstall the motor assembly so that the harness is facing downward 6. ASSEMBLYInside hole 6-9. Needle bar mechanism6. ASSEMBLY 18. Needle bar clamp 19. Needle bar Insert from above 20. Screw 6. ASSEMBLY6. ASSEMBLY 6-10. Intermittent presser foot lifter mechanism3. Lower the needle bar approximately 6.5 mm from its highest position 6. ASSEMBLY6. ASSEMBLY 6-11. Lower shaft mechanismCheck that the machine pulley turns smoothly 12. Lower shaft assy 6. ASSEMBLY6-13. Thread trimmer mechanism 6-12. Shuttle hook mechanism6. ASSEMBLY connecting platePneumatic specifications 6-14. Work clamp arm mechanism6. ASSEMBLY 1. Feed plate 2. Bolts with washer 2pcs 3. Work clamp assy6. ASSEMBLY 6-14-1. Adjustments after work clamp arm installationRetainer adjustment Work clamp height adjustment Solenoid specifications6. ASSEMBLY 6-15. Thread wiper mechanism5154Q 6-16. Covers6. ASSEMBLY 7. ADJUSTMENT 7. ADJUSTMENT7-1. Checking the machine head switch 7. ADJUSTMENT 7-2. Standard thread tension7-2-1. Upper and lower thread tension 7-2-3. Arm thread guide R 7-2-2. Thread take-up spring7. ADJUSTMENT Thread take-up spring height7-4. Adjusting the needle bar lift amount 7-3. Adjusting the needle bar height7-5. Adjusting the driver needle guard 7. ADJUSTMENT7-7. Adjusting the shuttle race thread guide 7-6. Adjusting the needle clearance7-8. Rotary hook lubrication amount 7. ADJUSTMENT7. ADJUSTMENT 7-9. Adjusting the position of the movable knife7. Turn the pulley 1 by hand to move the needle bar to its lowest position 7. ADJUSTMENT7. ADJUSTMENT 7-10. Replacing the movable and fixed knives7. ADJUSTMENT 7-10-1. Installing the feed plateEnd feed plate installation mode All indicators switch off7. ADJUSTMENT 7-11. Adjusting the thread wiper7-12. Presser foot installation position Changing the installation position of stepping clamp link A 7-13. Changing the intermittent stroke7. ADJUSTMENT 7. ADJUSTMENT Stepping clamp connecting rod position adjustment 7-15. Adjusting the air pressure pneumatic specifications 7-14. Adjusting the work clamp lift amount7. ADJUSTMENT Solenoid specifications7-17. Belt tension adjustment 7-16. Adjusting the thread trimmer cam position7. ADJUSTMENT X-GT belt7. ADJUSTMENT Y-GT belt 7-18. Adjusting the tension release amount7. ADJUSTMENT 7-19. Adjusting the backlash of the lower shaft gear7-20-1. Work clamp lift home position 7-20. Adjusting the home position7. ADJUSTMENT Solenoid specifications7. ADJUSTMENT 7-20-2. X-Y feed home positionRepeat steps 4 and 5 to adjust the home position End adjustment modeRepeat steps 5 and 6 to adjust the home position 7. ADJUSTMENTEnd adjustment mode 5208Q 5276Q7. ADJUSTMENT 7-21. Adjusting the needle up stop home position5209Q 4700QAdjustment method 7-22. Adjusting the needle up stop position7. ADJUSTMENT End adjustment mode 7. ADJUSTMENT8. ELECTRICAL MECHANISM 8-1. Precautions while carrying out adjustmentsDANGER 8. ELECTRICAL MECHANISMPower supply motor P.C. board 8-2. Inside the control box and operation panel structure8. ELECTRICAL MECHANISM Main P.C. board4590Q 8-3. Description of fuses8. ELECTRICAL MECHANISM 8-4-1. Connector positions 8-4. Description of connectors8. ELECTRICAL MECHANISM Main P.C. board8. ELECTRICAL MECHANISM PMD P.C. board Power supply motor P.C. boardBAS-311G, BAS-326G 4592Q4594Q 8. ELECTRICAL MECHANISM Panel P.C. boardBAS-311G, BAS-326G 8. ELECTRICAL MECHANISM 8-4-2. Symptoms when there are poor connectionsFeed mechanism Work clamp mechanismThread trimming mechanism 8. ELECTRICAL MECHANISMSewing operations 4713Q 5243Q 4714Q5245Q 5246Q 5247Q 5248Q 5249Q 8. ELECTRICAL MECHANISMOther 8-5-1. Diagnosis flowchart 8-5. TroubleshootingDescription of symbols “Problem” symbol in the “8-5-2. Remedy” lists5251Q 8. ELECTRICAL MECHANISMBAS-311G, BAS-326G 5252Q 8. ELECTRICAL MECHANISMBAS-311G, BAS-326G 5253Q 8. ELECTRICAL MECHANISMBAS-311G, BAS-326G Before carrying out adjustment 8-5-2. RemedyDANGER 8. ELECTRICAL MECHANISM4876Q 8. ELECTRICAL MECHANISM4877Q 4878Q8. ELECTRICAL MECHANISM 8. ELECTRICAL MECHANISM 5087Q 8. ELECTRICAL MECHANISM5086Q 4885Q 8. ELECTRICAL MECHANISM4884Q 8. ELECTRICAL MECHANISM4886Q 4888Q 8. ELECTRICAL MECHANISMWork clamp does not rise 8. ELECTRICAL MECHANISM 8. ELECTRICAL MECHANISM 8. ELECTRICAL MECHANISM 8. ELECTRICAL MECHANISM 4889Q 8. ELECTRICAL MECHANISM4890Q 4891Q5088Q 8. ELECTRICAL MECHANISM5089Q 4892Q9. TABLE OF ERROR CODES 9. TABLE OF ERROR CODESSwitch-related errors DANGERFeed mechanism-related errors 9. TABLE OF ERROR CODES Upper shaft motor-related errorsWork clamp-related errors E110Communication and memory-related errors 9. TABLE OF ERROR CODESE401 E402Device-related errors 9. TABLE OF ERROR CODES Data editing-related errorsP.C. board-related errors E50010. TROUBLESHOOTING 10. TROUBLESHOOTINGProblem CauseProblem 10. TROUBLESHOOTINGCause RemedyProblem 10. TROUBLESHOOTINGpower is turned on and switchBAS-311G, BAS-326G 11. 7-SEGMENT DISPLAY11. 7-SEGMENT DISPLAY Printed in Japan SERVICE MANUALI5060885B 2005.07. B