10. TROUBLESHOOTING

10. TROUBLESHOOTING

Please check the following points before calling for repairs or service.

If the following remedies do not fix the problem, turn off the power switch and consult a qualified technician or the place of purchase.

CAUTION

Turn off the power switch and disconnect the power cord before carrying out troubleshooting.

If the foot switch is depressed by mistake, the sewing machine might start operating and injury could result.

Problem

 

 

 

Cause

 

 

 

Remedy

Reference

 

 

 

 

 

 

 

 

 

 

 

Work clamp does not

Work clamp moves stiffly.

 

 

 

Apply a suitable amount of grease to the

 

lift.

 

 

 

 

 

sliding parts of the work clamp.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air tube of presser lifter cylinder is bent

Straighten the bend in the tube or

 

 

 

 

or damaged (Pneumatic specifications).

replace the tube.

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp does not

Work clamp moves stiffly.

 

 

 

Apply a suitable amount of grease to the

 

drop.

 

 

 

 

 

sliding parts of the work clamp.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air tube of presser lifter cylinder is bent

Straighten the bend in the tube or

 

 

 

 

or damaged (Pneumatic specifications).

replace the tube.

 

 

 

 

 

Work clamp lift amount

Work clamp lift amount setting at

Change the work clamp lift amount

Instruction

is incorrect.

 

operation panel is incorrect (Solenoid

setting.

manual

 

 

 

specifications).

 

 

 

 

 

 

 

 

 

 

Work

clamp

arm

lever

position

is

Adjust the position of the work clamp

P. 100

 

 

 

incorrect. (Pneumatic specifications)

 

arm lever.

 

 

 

 

 

 

 

 

 

 

 

 

 

Work clamp does not

Work

clamp arm

stopper

position

is

Adjust the position of the stopper.

P. 85

lift to

the maximum

incorrect (Solenoid specifications).

 

 

 

 

height.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cylinder

joint

position

is

incorrect.

Adjust the position of the cylinder joint.

P. 85

 

 

 

 

 

 

(Pneumatic specifications)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread

wiper

does

 

 

 

 

 

 

 

 

Adjust the height of the thread wiper.

P. 97

not operate correctly.

The thread wiper is obstructing the

 

 

 

 

 

 

 

 

 

 

needle.

 

 

 

 

 

 

Adjust the stroke of the thread wiper.

P. 97

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Thread wiper position is incorrect.

 

Adjust the stroke of the thread wiper.

P. 97

 

 

 

 

 

 

Lower

thread

winds

Bobbin winder tension assembly height

Adjust the height of the bobbin winder

Instruction

to one side.

 

is incorrect.

 

 

 

 

 

tension assembly.

manual

 

 

 

 

 

Lower thread winding

Bobbin presser position is incorrect.

 

Adjust the position of the bobbin presser.

Instruction

amount is incorrect.

 

 

 

 

 

 

 

 

 

manual

Thread

slips

out of

Stitches

being

skipped

at

the sewing

Refer to "Skipped stitches occur".

P. 142

the needle.

 

start.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Upper thread length is irregular.

 

Adjust the sub-tension.

Instruction

 

 

 

 

manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Position of shuttle race thread guide is

Adjust the position of the shuttle race

P. 92

 

 

 

incorrect

 

 

 

 

 

 

thread guide.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BAS-311G, BAS-326G

141

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Image 148
Brother BAS-311G service manual 141

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.