6. ASSEMBLY

58

6-1. Thread trimmer mechanism (1)

58

6-2. Intermittent presser foot lifter

 

 

mechanism (1)

60

6-3.

Tension release mechanism

60

6-4. Work clamp lifter mechanism

 

 

(Solenoid specifications)

61

6-5. Work clamp lifter mechanism

 

 

(Pneumatic specifications)

64

6-6.

Feed mechanism

66

6-7.

Feed covers

73

6-8.

Upper shaft mechanism

75

6-9.

Needle bar mechanism

77

6-10. Intermittent presser foot lifter

 

 

mechanism (2)

79

6-11. Lower shaft mechanism

81

6-12. Shuttle hook mechanism

83

6-13. Thread trimmer mechanism (2)

83

6-14. Work clamp arm mechanism

84

6-14-1. Adjustments after work clamp arm

 

 

installation

85

6-15. Thread wiper mechanism

86

6-16. Covers

87

7. ADJUSTMENT

88

7-1. Checking the machine head switch

88

7-2.

Standard thread tension

89

7-2-1. Upper and lower thread tension

89

7-2-2. Thread take-up spring

90

7-2-3. Arm thread guide R

90

7-3. Adjusting the needle bar height

91

7-4. Adjusting the needle bar lift amount

91

7-5. Adjusting the driver needle guard

91

7-6. Adjusting the needle clearance

92

7-7. Adjusting the shuttle race thread guide

92

7-8. Rotary hook lubrication amount

92

7-9. Adjusting the position of the movable

 

 

knife

93

7-10. Replacing the movable and fixed knives ...

95

7-10-1. Installing the feed plate

96

7-11. Adjusting the thread wiper

97

7-12. Presser foot installation position

97

7-13. Changing the intermittent stroke

98

7-14. Adjusting the work clamp lift amount

100

7-15. Adjusting the air pressure

 

(pneumatic specifications)

100

7-16. Adjusting the thread trimmer cam

 

position

101

7-17. Belt tension adjustment

101

7-18. Adjusting the tension release amount

102

7-19. Adjusting the backlash of the lower

 

shaft gear

103

7-20. Adjusting the home position

104

7-20-1. Work clamp lift home position

104

7-20-2. X-Y feed home position

105

7-21. Adjusting the needle up stop home

 

position

107

7-22. Adjusting the needle up stop position

108

8. ELECTRICAL MECHANISM

110

8-1. Precautions while carrying out

 

 

adjustments

110

8-2.

Inside the control box and operation

 

 

panel structure

111

8-3.

Description of fuses

112

8-4.

Description of connectors

113

8-4-1.

Connector positions

113

8-4-2.

Symptoms when there are poor

 

 

 

connections

116

8-5.

Troubleshooting

119

8-5-1.

Diagnosis flowchart

119

8-5-2.

Remedy

123

9. TABLE OF ERROR CODES

137

10. TROUBLESHOOTING

141

11. 7-SEGMENT DISPLAY

144

BAS-311G, BAS-326G

Page 7
Image 7
Brother BAS-311G service manual Table of Error Codes

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.