Brother BAS-311G service manual 5168Q

Page 71

6. ASSEMBLY

6-5. Work clamp lifter mechanism (Pneumatic specifications)

Apply grease <GREASE BZL-301 (SA2694-001)> specified by Brother to the portions indicated by the white arrows.

Set the work clamp cam gear so that there is no clearance between it and the ball bearing in the shaft direction, and then align the V groove in the work clamp fulcrum shaft with the thread on the hole side of the work clamp cam gear. Then tighten the set screw.

5168Q

Align the screw stop, and then tighten the screw so that there is no play in the stepping foot driving lever and the set screw collar.

Check that the stepping foot driving lever turns smoothly.

1.Ball bearings [2 pcs]

2.Work clamp cam gear

3.

Work clamp fulcrum shaft

5169Q

4.

Retaining ring C

 

5.

Plain washer

 

6.

Screw

 

7.

Set screw

 

8.

Set screw

 

9.

Stepping foot driving lever

 

10.

Set screw collar

 

11.

Work clamp lever shaft

 

12.

Set screw

 

13.

Set screws [2 pcs]

 

14.

Shoulder screw

 

64

BAS-311G, BAS-326G

Page 70 Page 72
Image 71
Page 70 Page 72
Contents BAS-311G BAS-326G Safety Instructions Environmental requirements Iii Sewing5222Q 4905Q Contents Table of Error Codes Specifications List of special functions when power is turned on Function SettingsList of advanced functions When Speed indicator is illuminatedEnding setting mode Memory switch setting method AdvancedMemory switches that have been changed from Default settingsOFF List of memory switch settingsFor solenoid specifications Work clamp settingsFor solenoid specifications 1 pedal For pneumatic specifications 2 pedal051 Sewing machine motor settings Feed settings User program settings Operation panel settingsDevice settings Data editing settings554 Thread breakage detector Specifications and destination settings Error processing settingsMaintenance settings Solenoid specifications, single pedal sequence operation Setting the work clamp modeUnique machine settings Solenoid specifications, single pedal standard operationsClearing the cumulative number of stitches Pneumatic specifications, 2 pedal standard operationsPneumatic specifications, 2 pedal sequence operation Stitch counter checking methodError history checking method Input check list Input checking methodSele On / oFF Option input IN10 Output checking method CUt Software version checking method Handling data Reading / Writing Data\ISMS0102.SEW Structure of a CF card folderRead/write mode list Data read/write modeTurn on the power switch Switch to data read/write mode Reading sewing data from CF cards When memory switch No is onEnd data read/write mode Writing sewing data to CF cards Select the w 2 data read/write modeWriting memory switch data to CF cards Reading memory switch data from CF cardsWriting user program data to CF cards Reading user program data from CF cardsUpdating the control program Insert the floppy disk into the floppy disk drive Writing error log data to CF cardReading sewing data from floppy disks Writing sewing data to floppy disks Reading extended option output data from a CF card Reading extended option output data from floppy disks Writing extended option output data to CF cardsLower shaft and shuttle race mechanisms Needle bar and thread take-up mechanismsWork clamp lifter mechanism Solenoid specifications Intermittent presser foot lifter mechanism Work clamp lifter mechanism Pneumatic specificationsIntermittent presser foot stroke mechanism Direction Feed mechanismThread trimmer mechanism Thread wiper mechanism Tension release mechanismCovers Disassembly5090Q Work clamp arm mechanism Pneumatic specificationsPresser bar Pull downward from presser bar clamp Needle bar mechanism Upper shaft mechanism Lower shaft mechanism Feed covers 5103Q 5104Q 5106Q 5107Q 5118Q Work clamp lifter link Pull backward 5109Q Tension bracket assy Thread trimmer collar Shuttle hook mechanism Assembly Apply grease Stepping clamp lifter rod adjustment Index mark Work clamp lifter plate assy 5164Q 5168Q 5170Q 5171Q 5173Q Flat screws 8 pcs 5178Q Install so that the backlash is 0.01 GT belt tension adjustment 5184Q Right Y-LM guide installation Inside X-LM guide installationFeed bracket Needle plate 5140Q 4644Q Inside hole Inside hole Cut section 5195Q 5198Q 5199Q 5144Q Mating mark Movable knife 5201Q 5200Q Work clamp adjustment Retainer adjustmentWork clamp height adjustment Solenoid specifications Work clamp height adjustment Pneumatic specifications5153Q Shuttle race cover assy Motor cover L Checking the machine head switch AdjustmentStandard thread tension Thread take-up spring tension Thread take-up spring heightAdjusting the driver needle guard Adjusting the needle bar heightAdjusting the needle bar lift amount Rotary hook lubrication amount Adjusting the needle clearanceAdjusting the shuttle race thread guide Adjusting the position of the movable knife 4950Q 5237Q 5238Q Replacing the movable and fixed knives End feed plate installation mode Installing the feed platePresser foot installation position Adjusting the thread wiperChanging the intermittent stroke Changing the installation position of stepping clamp link aStepping clamp connecting rod position adjustment Pneumatic specifications Adjusting the work clamp lift amountAdjusting the air pressure pneumatic specifications Solenoid specificationsGT belt Adjusting the thread trimmer cam positionBelt tension adjustment 101102 Adjusting the tension release amountAdjustment Y-GT belt 103 Adjusting the backlash of the lower shaft gear104 Adjusting the home position105 Y feed home position106 107 Adjusting the needle up stop home position108 Adjusting the needle up stop positionAdjustment method 109 Injury Precautions while carrying out adjustments110 Electric shocks111 Inside the control box and operation panel structure112 Description of fuses113 Description of connectorsElectrical Mechanism PMD P.C. board 114115 Work clamp mechanism 116Feed mechanism Sewing operations 117Thread trimming mechanism Other 118119 TroubleshootingDescription of symbols 120 121 122 123 Before carrying out adjustmentFig. C OK if there is Continuity between 124Panel 125CN2 Main 126127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 Needle is broken Problem Cause Remedy Reference Upper thread breaks142 Lower thread breaks143 144 Segment DisplayI5060885B
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BAS-311G specifications

The Brother BAS-311G is a state-of-the-art industrial sewing machine designed specifically for advanced garment manufacturing. This high-speed, fully automated model is engineered to meet the demands of modern production environments, offering exceptional performance and versatility.

One of the key features of the BAS-311G is its automatic thread trimmer, which significantly reduces downtime and enhances productivity. This machine is capable of cutting the thread at the end of each seam, ensuring a clean finish and minimizing the need for manual intervention. This feature is especially beneficial in high-volume production settings where efficiency is paramount.

The BAS-311G also boasts an advanced automatic needle positioning system, allowing users to set the needle to stop in the up or down position. This functionality enhances control over the sewing process, making it easier to pivot and maneuver fabric, which is crucial for intricate designs and patterns. This precision is a boon for manufacturers looking to improve the quality of their finished products.

Another notable aspect of the BAS-311G is its versatility. The machine is equipped with an adjustable stitch length feature, enabling users to customize stitches according to specific project needs. This flexibility allows for the production of a wide range of garments, from delicate fabrics to thicker materials, making it suitable for various industries including fashion, sportswear, and workwear.

In terms of technology, the BAS-311G incorporates Brother's pioneering technology that ensures smooth and reliable operation. The machine includes a digital control panel, which simplifies the selection of stitch patterns and settings. Users can easily navigate through options, making adjustments on the fly, which is crucial in a fast-paced production environment.

Built with durability in mind, the BAS-311G is engineered for heavy-duty use with high-quality materials that withstand the rigors of daily operation. Its robust construction ensures longevity and sustained performance, making it a wise investment for businesses seeking reliable machinery.

In summary, the Brother BAS-311G is an excellent choice for manufacturers looking to enhance their sewing operations. With features such as automatic thread trimming, adjustable stitch lengths, and advanced technology integration, it stands out as a top-tier industrial sewing machine designed to improve efficiency and quality in garment production.
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