Brother BAS-342F, BAS-341F Adjusting the movable knife, Replacing the movable and fixed knives

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9. STANDARD ADJUSTMENTS

9-6. Adjusting the movable knife

B

1954S

1955S

Loosen the nut (2) and move thread trimmer rod L (3) to the left or right to adjust so that the V section A of the movable knife (1) is aligned with the index mark B on the needle plate when the machine is at the stop position.

■Replacing the movable and fixed knives

1956S

1957S

1.Remove the screws (1) and the feed plate (2). Then tear off the auxiliary plate sheet (3). Remove screws (4) and (5), and needle plate (6). Now disconnect the thread cutter connecting rod (7) from stud (8). (Figure is BAS-342F.)

BAS-341F, 342F

34

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Contents BAS-341F BAS-342F Safety indications and their meanings Safety InstructionsEnvironmental requirements InstallationSewing CleaningMaintenance and inspection 1971S Contents Changing Special Functions BAS-342F Name of Each PartsBAS-341F Needle SpecificationsPreparation Before setting upTilting the sewing machine head PositioningBelt tension Connecting the ground wireInstalling the foot switch Installing the programmer option Installing the spool standAdjusting the air pressure Lubrication points LubricationCorrect USE Installing the needle and running the sewing machineSelecting the needle and thread To turn the pulley by handThreading the upper thread Winding the lower thread Sewing conditions and thread tension Replacing the bobbin case and threading the threadLower thread tension Upper thread tension Pretension tension Explanation of panel Using the Operation PanelIndicator Switch Compatible types of floppy disk Using the floppy diskHow to use the cleaning disk Setting the floppy diskIf an error message is displayed Using the program R/W Read/Write switchClearing the error To Read a pattern to memoryResuming operation from a stopping poing Using the Test switch Checking the sewing patternContinuing sewing from a stopping point Using the emergency stop switchChanging the X-SCALE and Y-SCALE settings Adjusting the sewing Speed controlUsing 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 Draining the oil Cleaning the control box air inlet port Checking the needle Cleaning the eye guardAdjusting the needle bar lift amount Adjusting the needle bar heightAdjusting the shuttle race thread guide Adjusting the needle clearanceAdjusting the driver needle guard Replacing the movable and fixed knives Adjusting the movable knifeMovable knife Presser foot adjustment Adjusting presser foot lift to 5 8 mm Adjusting presser foot lift to 3 5mmChanging the presser foot lift Standard presser foot lift is 3 mm max mmAdjusting the needle up stop position Adjusting the wiperChecking the input sensor and DIP switch input Checking the input voltage Clearing all memory settingsPanel DIP switch functions DIP SwitchFeeding 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 Extended option output Memory switches 20 2FSwitch 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 Needle thread presser device OptionAir wiper device 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone