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INSTRUCTION MANUAL
BAS-341F
BAS-342F
Please read this manual before making using the machine.
Please keep this manual within easy reach for quick reference.
PROGRAMMABLE ELECTRONIC PATTERN SEWER
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Thank you very much for buying a BROTHER sewing machine. Before using your new machine, please read the safety instructions below and the explanations given in the instruction manual. With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts such as the needle and thread take-up lever, and consequently there is always a danger of injury that can be caused by these parts. Follow the instructions from training personnel and instructors regar
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2 Notes on safety DANGER Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury. CAUTION Environmental requirements Use the sewing machine in an area which is free The ambient temperature should be within the from sources of strong electrical noise such as range of 5 to 35 during use. high-frequency welders.
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CAUTION Sewing This sewing machine should only be used by If using a work table which has casters, the casters should be secured in such a way so that operators who have received the necessary they cannot move. training in safe use beforehand. Attach all safety devices before using the sewing The sewing machine should not be used for any machine. If the machine is used without these applications other than sewing. devices attached, injury may result. Be sure to wear protective goggles when usi
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3 Warning labels The following warning labels appear on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer. 2 1 Safety devices Eye guard Finger guard Thread take-up cover Belt cover , etc. Be sure to connect the ground. If the ground connection is not secure, you run a high risk of 3 receiving a serious electric shock, and problems with correct
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CONTENTS 1. NAME OF MAJOR PARTS .................................................................................................................... 1 2. SPECIFICATIONS ........................................................................................................................................... 2 3. PREPARATION .................................................................................................................................................. 3 3-1. Before setting up ..
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7. SEWING ....................................................................................................................................................................27 7-1. Before starting sewing....................................................................................................................................................27 7-2. Sewing operation ...........................................................................................................................
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1. NAME OF EACH PARTS 1. NAME OF EACH PARTS ■ BAS-341F Cotton stand Emergency stop switch Operation panel Thread wiper switch Programmer Power switch Solenoid valve Control box Integrater Presser lifter pedal Starting pedal 1917S ■ BAS-342F Presser foot Work clamp Feed plate 1918S BAS-341F, 342F 1
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2. SPECIFICATIONS 2. SPECIFICATIONS Stitch formation Single needle lock stitch Sewing machine Lock stitch, pattern tacking sewing machine (with large shuttle hook) Maximum pattern size BAS-341F: 250X 150 mm, BAS-342F: 300 X 200 mm Maximum stitch number 20,000 (one pattern) Stitch length 0.1 - 12.7 mm Maximum sewing speed 2,500 rpm (When stitch length is 3 mm or less) Feed mechanism Intermittent feed, pulse motor drive Shuttle hook Double hook (Standard hook is sold separately) Needle DP X 5, DP
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3. PREPARATION 3. PREPARATION CAUTION Install the belt cover and the frame side cover to Machine installation should only be carried out by the machine head and motor. a qualified technician. If using a work table which has casters, the Contact your Brother dealer or a qualified casters should be secured in such a way so that electrician for any electrical work that may need to they cannot move. be done. Be sure to wear protective goggles and gloves The sewing machine head weighs more than 200
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3. PREPARATION 3-2. Positioning Decide the position for the sewing machine. Loosen nuts of four level adjusters (1). Lower the level adjusters and secure them with nuts (2). Turning the level adjuster counterclockwise will raise its height and turning it clockwise will lower it. 1920S 3-3. Tilting the sewing machine head 1921S 1. Remove screws (1) at the back of the work table, and remove table cover (rear) (2). 2. Remove bolt (3). The bolts are used to fix the machine in shipping. Generally the
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3. PREPARATION 3-4. Connecting the ground wire CAUTION Be sure to connect the ground. If the ground connection is not secure, you run the risk of receiving a serious electric shock. Connection method for 3-phase power supply. 3-phase Red power supply White Black Yellow/Green Connect to Yellow/Greeen ground 0064Q 3-5. V-belt tension These should approximately 10 - 12 mm of slack when V- belt is loaded at 9.8 N . To adjust, loosen the two nuts (1), and shift the motor up or down. 1923S 3-6. Inst
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3. PREPARATION 3-7. Installing the spool stand Install the spool stand (1) to the table. (1) 0073Q 3-8. Installing the programmer (option) [Vertical] [Flat] (1) (1) (2) (1) (2) (2) (4) (3) 1181S 1182S 1183S 1. Install the programmer support (2) to the work table with the two screws (1). 2. Insert the programmer connector (4) securely into the left side of the operation panel (3). BAS-341F, 342F 6
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3. PREPARATION 3-9. Adjusting the air pressure 1. Air pressure should be 0.5 MPa. The air pressure can be adjusted by pulling up and turning the control knob (2) on the integrator (1). After adjustment is complete, push the control knob (2) downward to lock it. 2. If water stands in the bottle of the integrator (1), turn the drain cock (3) in the direction indicated by an arrow to drain the water. Note Open the air cock (4) slowly. 1925S BAS-341F, 342F 7
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4. LUBRICATION 4. LUBRICATION CAUTION Turn off the power switch before starting lubricating, otherwise the machine may operate if the foot switch is depressed by mistake, which could result in injury. Be sure to wear protective goggles and gloves when handling the lubricating oil and grease, so that they do not get into your eyes or onto your skin, otherwise inflammation can result. Furthermore, do not drink the oil or eat the grease under any circumstances, as they can cause vomiting and diar
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5. CORRECT USE 5. CORRECT USE 5-1. Selecting the needle and thread Needle Thread Main application Different needles and threads are used for different sewing DP X 5 #9 #100 - #60 Knitted wear applications. DP X 5 #16 #80 - #50 General clothing Refer to the table at left for details on which needle. DP X 17NY #19 #50 - #20 Denim DP X 17 #21 #50 - #20 Denim DP X 17 #25 #50 - #20 Leather•seat belts 5-2. Installing the needle and running the sewing machine CAUTION Turn off the power switch before
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5. CORRECT USE 5-3. Threading the upper thread CAUTION Turn off the power switch before threading the thread, otherwise the machine may operate of the foot switch is depressed by mistake and serious injury could result. 1932S [When using cotton thread and spun yarn] [With synthetic thread] [Threading in the upper thread breakage detector] Real the thread from above once or twice as the above figure. 1934S 1933S ■ Thread the upper thread correctly as shown in the illustration above. Note • Turn
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5. CORRECT USE 5-4. Winding the lower thread CAUTION Do not touch or place anything against any of the moving parts while winding the lower thread, otherwise personal injury or damage to the machine may result. 1. Place the bobbin all the way onto the shaft. 2. Thread the thread as shown in the illustration at left, wind the thread around the bobbin several times in the direction of the arrow, and then press the bobbin presser (1). 3. Turn on the power switch. (1) (The POWER indicator on the ope
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5. CORRECT USE 5-5. Replacing the bobbin case and threading the thread CAUTION If the power switch needs to be left on when carrying out replacing the bobbin, be extremely careful to observe all safety precautions. The machine may operate if the foot switch is depressed by mistake, which could result in injury. (ex. Continuing sewing from a stopping point) (2) (3) 30 mm (4) 0110Q 1202S 1936S 1. Pull the shuttle race cover (1) forward and then open the cover. 2. Lift the bobbin case latch and r
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5. CORRECT USE 5-6-2. Lower thread tension 5-6-3. Upper thread tension Weaker Stronger Stronger Weaker (1) Stronger Weaker 0112S 1937S Set the lower thread tension to as weak a tension as Turn the tension nut (2) (main tension) to adjust the tension possible and so that the bobbin case drops by its own as appropriate for the material being sewn. weight when the end of the thread is held. Turn the Furthermore, turn the thread nut (3) (sub-tension) to adjust the remaining length of upper thread to
