8. ELECTRICAL MECHANISM

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem

#17 Intermittent presser foot does not drop during sewing.

 

 

 

 

 

 

 

 

 

Cause

Inspection/Remedy/Adjustment

 

Replacement if a malfunction

 

5. If the presser foot does not

1) Disconnect connector P3 (PPM) from the

 

Pulse motor P assembly

 

move and [E300] is displayed,

PMD P.C. board, and measure the resistance

 

 

 

there is a malfunction of the

between pins 1-2 and 3-4 at the cord-side

 

 

 

pulse motor or cord.

connector.

 

 

 

 

 

OK if 2-3 Ω

 

 

 

 

 

After measuring, insert P3.

 

PMD P.C. board

 

 

 

2) If 1) is OK, there is a malfunction of the PMD

 

 

 

 

P.C. board.

 

 

 

 

4888Q

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Problem

# 18 Sewing machine does not operate during sewing and [E120] is displayed.

 

 

 

 

 

 

 

 

Cause

Inspection/Remedy/Adjustment

 

Replacement if a malfunction

 

1. Malfunction of sewing machine

Check connector P4 (UVW) of the power supply

 

Motor cable

 

motor cord

motor P.C. board and the sewing machine motor

 

 

 

 

 

connector.

 

 

 

2. If the fuse (F1) on the power

1) If the fuse (F1) is blown, check the resistance

 

Power supply motor P.C.

 

supply motor P.C. board is

values between all pins of the connector P4

 

board

 

blown, there is a malfunction of

(UVW) and the pins of the fuse (∞ Ω) and

 

 

 

the main P.C. board.

replace the fuse.

 

 

 

 

 

2) If the fuse blows again, replace the power

 

 

 

 

 

supply motor P.C. board.

 

 

 

3. Sewing machine motor overheats

1) Turn off the power and let the sewing

 

Motor cable

 

and the thermostat inside the

machine stand for 30 minutes.

 

 

 

motor operates when the sewing

2) Turn the power back on; OK if operation is

 

 

 

machine is operated at short

normal.

 

 

 

cycle.

 

Avoid repeated sewing of sewing data that is

 

 

 

 

 

 

 

 

 

 

less than 15 stitches.

 

 

BAS-311G, BAS-326G

133

Page 139 Page 141
Page 140
Image 140
Brother BAS-311G service manual 133
Page 139 Page 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.
Top Page Image Contents