Brother BAS-326- Manuals

iv BAS-311E.311EL.326E.326EL 1 ★ 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. Safety devices: Thread t...

BAS-311E.311EL.326E.326EL INDEX Chapter 1. Mechanical description ........................................................... 1 1. Needle bar, thread take-up, lower shaft and shuttle hook mechanism ................. 1 2. Work clamp lifting mechanism (1)(2) ..............................................

1 BAS-311E.311EL.326E.326EL Chapter 1. Mechanical description Chapter 1. Mechanical description 1. Needle bar, thread take-up, lower shaft and shuttle hook mechanism 1. When the machine pulley q rotates in the direction of the arrow, the upper shaft w rotates, then it rotates the thread take-up cran...

3 BAS-311E.311EL.326E.326EL Chapter 1. Mechanical description Work clamp lifting mechanism (2) 311E, 311EL(Pneumatictype) 1. When the air cylinder q operates in the direction of the arrow, work clamp arm levers R w and F e also operate in the direction of the arrow. 2. Work clamp SE r is moved verti...

8 BAS-311E.311EL.326E.326EL Chapter 1. Mechanical description 5. Thread trimmer mechanism 1. When the thread trimmer signal is on, the thread trimming solenoid q pushes the pushing lever driving lever w . 2. The pushing lever driving lever w pushes the thread trimmer driving lever r in the direction...

9 BAS-311E.311EL.326E.326EL Chapter 1. Mechanical description 6. Thread nipper (1) when presser foot rises 1. When the machine stops, the stepping solenoid q operates, and the presser foot rises as soon as the work clamp rises. 2. The stepping solenoid q operates the lifter lever w , and the work cl...

11 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly Chapter 2. Disassembly 1. Covers (1) 311E 1. Remove the screw, the top cover q , the belt covers w and the rear cover e . 2. Loosen shoulder screw r and remove the work clamp lifter connect rod t . 3. Remove the plunger pin u from the plunger y . 4...

14 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 3. Presser foot mechanism 1. Loosen the nut q , remove the adjust screw w , the spring guide e , and the spring r by lifting them from above of the machine, and remove the washer t . 2. Loosen the bolt u of stepping work clamp arm R y , remove the ...

15 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 4. Needle bar mechanism 1. Remove the rubber cap q . 2. Remove the needle bar thread guide w from the needle bar e . 3. Loosen the screw of the needle bar clamp r , and remove the needle bar e through the machine top. 4. Remove the needle bar clamp...

16 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 5. Upper shaft mechanism 1. Loosen the screw w and the set screw e of thread take-up crank q . (The screw w should be loosened until its end comes off the upper shaft r .) 2. Remove the screw t , and the thread trimming solenoid y . 3. Remove the s...

22 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 8. Lower shaft mechanism 1. Tilt the machine head until it stops.2. Remove the bobbin case q and the shuttle hook w . 3. Loosen the bolt e , and remove the driver r and the retaining ring t . 4. Loosen the set screw of the set screw collar y , and ...

24 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 10. Thread nipper mechanism 1. Remove the set screw, the thread tension q , the pin w , and the tension release bar e . 2. Remove the shoulder screw r and the tension release rod t . 3. Remove the screw and the tension release assembly y . 4. Remov...

25 BAS-311E.311EL.326E.326EL Chapter 2. Disassembly 11. Thread trimmer mechanism 1. Remove the screws q , the flat screws w and the needle plate e . 2. Remove the rubber cap r , loosen the set screw t , and remove the connecting rod lever shaft y . 3. Remove the oil cap u , loosen the set screw i , ...

27 BAS-311E.311EL.326E.326EL Chapter 3. Assembly 2. Thread nipper mechanism 1. Pass the tension release assembly q from the bottom of the machine to the top. 2. Attach the wire support w to the solenoid set plate e with the bolt r . 3. Temporarily attach the lifter lever t to the shaft of the steppi...

29 BAS-311E.311EL.326E.326EL Chapter 3. Assembly 3. Work clamp lifter mechanism 1. Attach the presser plate q to the presser bar lifter lever rubber w , and insert them from the bottom of the arm. Insert the parts r linked to the plunger e from the top of the arm, and fit them on link shaft C t , li...

39 BAS-311E.311EL.326E.326EL Chapter 3. Assembly 6. Upper shaft mechanism 1. Insert the upper shaft q from the rear of the machine, and place the thread trimmer cam w and the stepping work clamp connecting rod e on the shaft. * Apply adhesive (equivalent of Three Bond 1401) around the area which the...

40 BAS-311E.311EL.326E.326EL Chapter 3. Assembly 7. Needle bar mechanism 1. Temporarily tighten the screw w of the needle bar guide q . 2. Pass the thread take-up support stud e through the thread take-up assembly r , lightly press the former, and secure them using the set screw t . 3. Pass the need...

41 BAS-311E.311EL.326E.326EL Chapter 3. Assembly 8. Presser foot mechanism 1. Insert the presser bar w into the presser bar bush q . Pass the presser bar lifter e , the cushion r , and the needle bar clamp t through the presser bar w in that order. 2. Secure the needle bar clamp t with the screw. 3....

51 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments Chapter 4. Adjustments 1. Adjusting the needle bar height adjustment Turn the machine pulley to move the needle bar to the lowest position. Then remove the rubber cap w , loosen the screw e and then move the needle bar up or down to adjust so that ...

52 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 3. Adjusting the needle clearance 0.01 - 0.08mm q w q w e q A Turn the machine pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw q and turn the eccentric shaft w to adjust so that the clearance betwee...

53 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 6. Adjusting the two-step work clamp lift amount ¡ The maximum work clamp lift amount is 25 ± 1 mm (for solenoid type) or 30 ± 1 mm (for pneumatic type) from the top of the needle plate. ¡ The lift amount for each model is adjusted as shown in the ...

55 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 7. Adjusting the movable knife Loosen the nut e and move connecting rod lever r to the left or right to adjust so that the V section A of the movable knife q is aligned with the index mark B on the needle plate w when the machine is at the stop pos...

58 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 8. Adjusting the lowest point of the presser foot 1. Turn the pulley to align the needle bar with the shuttle hook. At this time, turn the stepping work clamp con-necting rod q to turn stepping work clamp arm F w in the direction of the arrow, and ...

59 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 8-1. Presser foot adjustment 1. Loosen the screw q , lower the presser foot w so that its bottom can lightly touch the workpiece, and tighten thescrew q again. Note: I f t h e p r e s s e r f o o t i s l o w e r e d t o o f a r , t h e workpiece wi...

61 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 11. Adjusting the home position 1. Remove the needle and presser foot.2. Remove the flat screws w and screws r of the work clamp guide brackets A q , B e and replace the work clamp y with the H-position standard plate t . Note: Attach the H-positio...

64 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 12. Adjusting the tension of the timing belt ■ Adjusting the tension of X-timing belt 311E 1. Remove the X-feed bracket cover q . 2. Loosen the bolt e of X-pulley base B w , then adjust the tension using the bolt r . ■ Adjusting the tension of Y-ti...

65 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 311EL and 326E, 326EL ■ Adjusting the tension of X-timing belt A326 X-timing belt A326 e is looped around X-timing pulley A311 (A326) q and X-timing pulley B326 w . The tension of X-timing belt A326 e should have 1 mm deflection when it is pressed ...

66 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 13. Adjusting backlashes ■ Lower shaft 1. Tilt the machine head until it stops.2. Loosen the set screw q , then turn the rock gear shaft w to provide 0.05 - 0.12 mm looseness at the tip of theshuttle driver e . ■ Y-axis feed Loosen the four bolts q...

67 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 14. Adjusting the driving lever stopper position 1. Remove the screws q and the top cover w . 2. If thread trimming is not performed, loosen the bolts t so that the difference between the thread trimmer driving lever e and the driving lever stopper...

68 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 16. Work clamp lift components for manual operation (Sole- noid type) 1. Fully press in the plunger w of the work clamp solenoid q . 2. Adjust the presser bar lifter lever arm y so that the shaft of the shoulder screw lightly touches the rod t when...

69 BAS-311E.311EL.326E.326EL Chapter 4. Adjustments 18. Adjusting the needle up stop position r w y u t q e 1. Loosen the screw t (at the U side on the pulley q ), and turn the pulley q so that the mark w on the pulley is inside the mark r of the belt cover e . The pulley q stops later if it is turn...

70 BAS-311E.311EL.326E.326EL Chapter 5. How to make up the work clamp Chapter 5. How to make up the work clamp • The work clamp is available in two types; clamping type and cassette type.The maximum sewing range is (W × L) BAS-311E (130mm × 60mm), 311EL (220mm × 60mm), 326E (200mm × 100mm), 326EL (2...

71 BAS-311E.311EL.326E.326EL Chapter 5. How to make up the work clamp ■ How to make up the plastic work clamp 1. Cut out the plastic plate according to the counter of a material to be sewn. 2. Bond a paper cushion material or the like around the cut- out section to firmly press a material to be sewn...

72 BAS-311E.311EL.326E.326EL Chapter 5. How to make up the work clamp Cassette presser 1L t=3.2 SO2845-001 SO2846-001 Cassette presser 1R Cassette presser 4L t=3.2 SO2851-001 SO2852-001 Cassette presser 4R Cassette presser 2L t=3.2 SO2847-001 SO2848-001 Cassette presser 2R Cassette presser 3L t=3.2 ...

73 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment Chapter 6 Power supply and electrical parts adjustment 1. Precautions at the time of adjustment Pay attention to the following when opening the control box for maintenance. ■ Electric shock Some large capacitors may ...

75 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 4. Connectors Most of the machine trouble is due to connector problems including improper connection or insufficient contact. There-fore, be sure to check if each connector is correctly inserted and that there is no ...

76 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment Power supply circuit board Outside of the panel Panel circuit board P5DC300 P4ACIN P3DC18 P2 PER P1POWER P4OPTION 2 P3OPTION 1 P2PGM P5DRV P1 FDD Panel P-ROM(PL) Programmer cord

77 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment Programmer and programmer circuit board Programmer PCB Programmer P - ROM LCD inverter LCD LCD contrast VR Operation panel

78 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment • Home position is not properly detected. • Error [E.A1] appears. • Forward feed does not operate correctly. • Error [E.A1] appears. • Sideways feed does not operate correctly. • Error [E.A1] appears. Connector No. a...

80 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment • The machine motor does not run. • Motor operation is unstable. • Needle up stop position is not correct. • Error [E.20] appears. • Error [E.22] appears. 4. Programmer operation • Keys on the programmer respond, but...

82 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 5. DIP switches Note: When changing DIP switch setting the power must be off. Panel DIP switch functions ■ DIP switch A A - 1 When ON After sewing is complete, the work clamp is raised by the operator and does not ri...

84 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment DIP switches inside the control box Wait at least 5 minutes after turning off the power switch and disconnecting the power cord fromthe wall outlet before opening the face plate of the control box. Touching areas whe...

86 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 6. Changing special functions using the memory switches The functions of the switches on the operation panel can be changed to carry out special functions.Note: The following are special uses. All the memory switches...

90 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 7. Checking the input sensor and DIP switch input 1. When the SPLIT NO. indicator q is lit and the R/W switch e is pressed while the TEST switch w is being pressed, the X-SCALE indicator r will be lit and the state o...

91 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 8. Checking the input voltage 1. Turn on the power switch.2. Press the MENU switch q until the X-SCALE indicator w is lit. 3. While pressing the TEST switch e , press the R/W switch r . 4. If the input voltage is nor...

92 BAS-311E.311EL.326E.326EL Chapter 6 Power supply and electrical parts adjustment 10. Confirming software version 1. While pressing the TEST switch q , turn on the power to the machine. Version number of each PROM can be con- firmed. 2. Every time the MENU switch w on the panel is pressed until th...

95 BAS-311E.311EL.326E.326EL Chapter 7 Chapter 7. Trouble shooting OFF ■ Explanation of shapes Indicates manual operation. Indicates switch operation. Selects the course of action to follow, us-ing a yes-or-no decision-making process. Indicates that the procedure to follow ap-pears in the first colu...

101 BAS-311E.311EL.326E.326EL Chapter 7 ■ Problem solution and measures Precautions ¡ Pay attention to the following when opening the control box for maintenance. ™ Electrical shockSome large capacitors may have a high voltage remaining in them for up to 5 minutes after the power is turned off. Topr...

112 BAS-311E.311EL.326E.326EL Chapter 8. Chapter 8. 1. Gauge parts list according to subclasses The following parts are available for the BAS-311E, 311EL, 326E, 326EL for adding further flexibility to the range of appli-cations. Subclass Use Par name Needle hole plate Inner rotary hook assembly Larg...

113 BAS-311E.311EL.326E.326EL Chapter 9. Gauge parts list Ref.No.E Ref.No.XY Ref.No.B Ref.No.F Ref.No.C Ref.No.G Ref.No.D Ref.No.J Ref.No.A * ø4 ø2.5 5 ø5.5 ø4 5 ø3 ø2 5 ø6 ø3 ø10 ø2.5 ø1.6 5 ø2 ø2 ø3 2.5 ø4 ø2.5 10 ø4 φ 2.5 5 Chapter 9. Gauge parts list ■ Presser foot CODE QTY NAME OF FPARTS REF.NO...

123 BAS-311E.311EL.326E.326EL Chapter 10. Option parts Chapter 10. Option parts ■ Programmer assy ■ Inner clamp device ■ One-touch clamping device ■ Milling device ■ WP stitch device ■ Auto bobbin changer ■ Snap fastener and hook attachment device ■ Needle thread presser device ■ Thread breakage det...

124 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Programmer CODE QTY NAME OF PARTS REF.NO. 11-11-21-31-41-51-61-71-81-91-101-11 1-121-131-141-151-161-171-181-19 1-201-21 CODE S43249001S43250000S43251000S43252000S43253000S43254000 037301015 S43255000S43256000S43257000 037200615 S43271000 S432...

127 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ One-touch work clamp CODE QTY NAME OF PARTS REF.NO. 1 2 33-13-23-33-4 3-5 44-14-255-15-23-13-2 CODE S24612001 S14841001 S44794001S20280101S20286101S20289101S20293101 018680822 S20822101S20289101 018680822 S20823101S20293101 018680822 S20280101...

129 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Snap fastener and hook attachment device M-525K M-528K M-520K M-533K OM ø7.6,ø8.6 M-508K CODE QTY NAME OF PARTS REF.NO. 1 1 1 1 1 1-2 CODE S42804001 S42807001 S42809001 S42811001 S42813001 153057002 QTY 1 1 1 1 1 2 NAME OF PARTS <FOR M-508K...

130 BAS-311E.311EL.326E.326EL Chapter 10. Option parts CODE QTY NAME OF PARTS REF.NO. 23 S13099001S13100001 11 <For Sewing the belt with hook>NEEDLE PLATE,HFEED DOG,H ■ For sewing the belt with hook 2 3 310-SW DEVICE UNIT 310-HE DEVICE UNIT <FORM -510> <FORM-10> <FORM-521> S2...

133 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Wide perfect device CODE QTY NAME OF PARTS REF.NO. 11-1-11-21-3 1-4-11-4-1-11-5-11-6-1 CODE S44795001S40837001S40840001S40841101 S40842991S40842001S40843001S40846001 QTY 1111 1111 NAME OF PARTS WIDE PERFECT STITCH SETSHUTTLE RACE BASE ASSY,WPD...

134 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Needle cooler set CODE QTY NAME OF PARTS REF.NO. 44-14-24-34-3-14-3-24-3-2-14-3-2-24-3-34-3-44-44-5 S43846009S18027101S15031008S43839008S43683001S43696000S44746000S44750000S44748001S18415101S04897000 062670812 111111111212 <Needle cooler se...

135 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Play prevention work clamp ■ For Horizontal Wiper CODE QTY NAME OF PARTS REF.NO. 2728293031323334353637 S42859001S42864001 156206001 S13385001 014710522 S21875001S12668001 021670202100659001021660102159111001 11111111111 <For Horizontal wip...

136 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Thread wiper set: Pneumatic type CODE QTY NAME OF PARTS REF.NO. 33-13-1-13-1-23-1-33-1-43-1-53-1-63-1-73-1-83-1-93-1-10 3-1-11-13-1-123-2-13-2-1-13-2-1-23-2-1-33-2-1-43-2-1-53-2-1-63-33-43-53-1-13 CODE S43841009S43842009S17942000S31777001S1021...

137 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ 2-step tension device CODE QTY NAME OF PARTS REF.NO. 22-1-12-1-1-12-1-1-22-1-1-32-1-1-42-1-1-52-1-1-62-1-1-72-1-1-82-1-1-92-1-1-102-1-1-11 2-1-1-122-2-12-2-1-12-2-1-22-2-1-2-12-2-1-2-22-2-1-32-2-1-42-32-42-52-62-7 CODE S43837001S43838001S34706...

138 BAS-311E.311EL.326E.326EL Chapter 10. Option parts ■ Auxiliary device 1 1 -2 1 -1-13 1 -1-12 1 -1-11 1 -1-1 1 -1-2 1 -1-3 1 -1-5 1 -1-7 1 -1-6 1 -1-4 1 -1-9 1 -1-10 1 -1-8 2 -1-3 2 -1-2 2 -1-1 2 -2 2 -3 2 -1-5 2 -1-6 2 -1-4 2 -1-7 2 -1-8 2 -1-9 2 6 6 -1 6 -2-2 6 -2-1 6 -3 6 -5 6 -4 6 -4

140 BAS-311E.311EL.326E.326EL Control Block Diagram Synchronizer Head EM switch Presser tootSolenoid Presser plateSolenoid Thread trimerSolenoid WiperSolenoid Senoid type CONTROL PCB Control box Pnevmatic type Air valve Right presser plate Left presser plate X-axis home positon sensor Y-axis home po...

SERVICE MANUAL BROTHER INDUSTRIES,LTD. NAGOYA,JAPAN Printed in Japan 151-V11, V12, V26 I9080764 1999. 08. B (1)