Brother 342Fi, BAS-341F, BAS-342F instruction manual Incorrect needle and shuttle hook timing

Page 62

15. TROUBLESHOOTING

Problem

Cause

Check

Remedy

Page

Upper thread breaks.

Lower thread breaks.

Skipped stitches occur.

Upper thread tension is too strong.

Needle is installed incorrectly.

Thread is too thick for the needle.

Thread take-up spring tension and height are incorrect.

Damaged or burred shuttle hook, needle hole plate or needle.

Thread melting (synthetic thread)

Thread path is incorrect.

Lower thread tension is too strong.

Corners of needle hole plate or bobbin case are damaged.

Clearance between needle and shuttle hook tip is too great.

Incorrect needle and shuttle hook timing.

Driver is contacting needle more than is necessary.

Needle is bent.

Needle is installed incorrectly.

Upper thread tension

Needle direction

Thread and needle

Thread take-up spring tension and height

Damage or burring

Thread edge

Thread

Lower thread tension

Damage

Needle clearance

Needle bar lift amount

Clearance between driver and needle

Bent needle

Needle direction

Adjust the upper thread

13

tension.

 

 

 

 

 

Install the needle so that the

9

groove is facing forward.

 

 

 

Use the correct

thread

12

for the needle.

 

 

 

 

 

 

 

Adjust the tension and

13

height of the thread take-

up spring.

 

 

 

 

 

File smooth or

replace

 

the affected part.

 

 

 

 

 

 

Use a thread cooling

10

device.

 

 

 

 

 

 

 

Pass the thread correctly

10

along the thread path.

 

 

 

 

 

 

 

Adjust the lower

thread

13

tension.

 

 

 

 

 

 

 

 

 

File smooth or

replace

 

the affected part.

 

 

 

 

 

 

Adjust the needle clearance.

33

the affected part.

 

 

 

 

 

 

 

 

Adjust the needle bar lift

32

amount.

 

 

 

 

 

 

 

Adjust the driver needle

33

guard.

 

 

 

 

 

 

 

Replace the needle.

 

 

 

 

 

Install the needle so that the

9

groove is facing forward.

 

 

 

 

Needle breaks.

Needle is touching the shuttle hook.

Needle is bent.

Needle moves about.

Needle is too thin.

Needle clearance

Needle bar lift amount

Bent needle

Needle and thread

Needle and thread

Adjust the needle clearance.

33

the groove is facing forward.

 

 

 

 

 

Adjust the needle bar lift

32

amount.

 

 

 

 

 

Replace the needle.

 

 

 

Select the correct needle for

12

the

sewing

conditions.

Reduce the sewing speed

 

 

 

 

Use

the correct needle

12

for the material.

 

 

 

 

 

 

 

55

BAS-341F, 342F

Page 61 Page 63
Image 62
Page 61 Page 63
Contents BAS-341F BAS-342F Safety Instructions Safety indications and their meaningsInstallation Environmental requirementsSewing CleaningMaintenance and inspection 1971S Contents Changing Special Functions BAS-342F Name of Each PartsBAS-341F Specifications NeedleBefore setting up PreparationPositioning Tilting the sewing machine headBelt tension Connecting the ground wireInstalling the foot switch Installing the spool stand Installing the programmer optionAdjusting the air pressure Lubrication Lubrication pointsSelecting the needle and thread Installing the needle and running the sewing machineCorrect USE To turn the pulley by handThreading the upper thread Winding the lower thread Replacing the bobbin case and threading the thread Sewing conditions and thread tensionLower thread tension Upper thread tension Pretension tension Using the Operation Panel Explanation of panelIndicator Switch Using the floppy disk Compatible types of floppy diskSetting the floppy disk How to use the cleaning diskClearing the error Using the program R/W Read/Write switchIf an error message is displayed To Read a pattern to memoryUsing the Test switch Checking the sewing pattern Resuming operation from a stopping poingUsing the emergency stop switch Continuing sewing from a stopping pointAdjusting the sewing Speed control Changing the X-SCALE and Y-SCALE settingsUsing the bobbin thread counter Using production counter Using single split mode Shifting a stitch pattern Sewing operation SewingBefore starting sewing 1942S Lubrication Maintenance and InspectionCleaning the shuttle hook Cleaning the control box air inlet port Draining the oilCleaning the eye guard Checking the needleAdjusting the needle bar height Adjusting the needle bar lift amountAdjusting the shuttle race thread guide Adjusting the needle clearanceAdjusting the driver needle guard Adjusting the movable knife Replacing the movable and fixed knivesMovable knife Presser foot adjustment Changing the presser foot lift Adjusting presser foot lift to 3 5mmAdjusting presser foot lift to 5 8 mm Standard presser foot lift is 3 mm max mmAdjusting the wiper Adjusting the needle up stop positionChecking the input sensor and DIP switch input Clearing all memory settings Checking the input voltageDIP Switch Panel DIP switch functionsFeeding speed is switched to high speed DIP switches inside the control box DIP Switch Changing Special Functions and Using the Memory Switches Memory switches 00 0F Switch No When on Memo-10 Memory switches 20 2F Extended option outputSwitch No Possible Units Error Codes Error codes E.9 * E.F Gauge Parts List According to Subclasses Plate blank Troubleshooting Incorrect needle and shuttle hook timing Turn the sub-tension nut To adjust the tension Adjust the sub tension Sharpen or Replace Fixed knife Option Needle thread presser deviceAir wiper device 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone

342Fi, BAS-341F, PROGRAMMABLE ELECTRONIC PATTERN SEWER, BAS-342F specifications

The Brother BAS-342F programmable electronic pattern sewer represents an innovative approach in the textile and garment manufacturing industry. This machine is designed to enhance productivity and precision in creating intricate designs and patterns on various fabrics. The BAS-342F, along with its counterparts BAS-341F and BAS-342i, integrates cutting-edge technology, making it ideal for both small-scale tailoring operations and large-scale manufacturing environments.

One of the main features of the BAS-342F is its electronic pattern programming capability. This allows operators to store and recall multiple sewing patterns and designs with ease. The machine's advanced digital control system facilitates quick changes between patterns, drastically reducing downtime. Users can program complex designs directly on the machine or through external devices, ensuring flexibility in production.

The BAS-342F is equipped with a high-speed sewing capability, reaching up to 5,000 stitches per minute. This high output is significant for businesses looking to optimize efficiency and meet production demands while maintaining quality. The model also incorporates automatic thread trimming and thread break detection systems, ensuring consistent results with minimal manual intervention.

In terms of user experience, the machine features an intuitive interface, making it accessible even for beginners. The digital display provides clear visibility of settings and adjustments, allowing for precise control over the sewing process. Ergonomically designed controls contribute to ease of use, ensuring operators can work efficiently without experiencing fatigue.

Moreover, the Brother BAS-342F utilizes a robust industrial-grade construction that guarantees durability and reliability in demanding manufacturing environments. Its versatility allows it to handle a variety of materials, from lightweight fabrics to heavier textiles, expanding its usability across different sewing applications.

Another key characteristic is the machine’s compatibility with various attachments and accessories, enabling users to enhance its capabilities further. Optional features might include specialized feet for more delicate fabrics or additional pattern options that can be integrated into the existing programming.

Overall, the Brother BAS-342F, along with its siblings, stands out for its combination of high speed, programmable functionality, and user-friendly design. As the fashion industry continues to evolve, machines like the BAS-342F play a crucial role in meeting the demands for creativity, efficiency, and quality in garment production. Investing in such advanced technology not only boosts productivity but also opens new avenues for creative expression in design.
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