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Lockstitch machine with a long arm and a thread trimmer

INSTRUCTION MANUAL

J-350QVP

Attention :

Congratulations on your purchase of a JUKI sewing machine.

Please be sure to read this Instruction Manual before operating the sewing machine

to ensure safe operation. Please be sure to keep the Instruction Manual so that you

can read it whenever necessary.

JUKI website: http://www.juki.com

Содержание J-350QVP

Страница 1: ...ion Congratulations on your purchase of a JUKI sewing machine Please be sure to read this Instruction Manual before operating the sewing machine to ensure safe operation Please be sure to keep the Instruction Manual so that you can read it whenever necessary JUKI website http www juki com EN ...

Страница 2: ...e cloth 5 Keep fingers away from all moving parts Special care is required around the sewing machine needle 6 Always use the proper throat plate The wrong plate can cause the needle to break 7 Do not use bent needles 8 Do not pull or push fabric while stitching It may deflect the needle causing it to break 9 Switch the sewing machine off O when making any adjustments in the needle area such as thr...

Страница 3: ...ible risk of personal injury and or physical damage if this mark is ignored and the sewing ma chine is used in a wrong manner Pictographs mean the following The operating temperature of the sewing machine is between 5ºC and 40ºC Do not use the sewing machine under the direct sunlight near the burning things such as a stove and candle or in a humid place By so doing the temperature in the interior ...

Страница 4: ...hands near the needle bar and the presser bar to avoid the risk of injury HOW TO CARRY THE SEWING MACHINE How to take out the sewing machine Pull out the sewing machine from the cutout of styrene foam by holding the main body of the arm CAUTION If you pull up the sewing machine by holding presser regulating screw section A the sewing machine can break In addition be aware that the presser regulati...

Страница 5: ...rated in sketch A in Figure 1 A temporary adaptor which looks like the adaptor illustrated in sketches B and C may be used to connect this plug to a 2 pole receptacle as shown in sketch B if a properly grounded outlet is not available The temporary adaptor should be used only until a properly grounded outlet can be installed by a qualified electrician The green colored rigid ear lug and the like e...

Страница 6: ... Accessories 6 Principal Parts 7 Name and Function of each component 8 12 Winding the bobbin 13 16 Attaching the needle 16 Threading the machine 17 Adjusting the thread tension 18 19 Presser foot lifting lever 19 Setup and operation 20 27 Maintenance 28 Maintenance and lubrication 28 29 Troubles and Corrective Measures 30 ...

Страница 7: ...s 10 Eye protection cover components Safety plate safety plate mounting plate washers two pieces setscrews large two pieces setscrews small two pieces 11 Thread guide pin 12 Blind seal Spare 1 2 3 4 5 6 7 8 11 12 9 10 Specifications Description Specification Sewing speed Max 2 200 sti min Needle bar stroke 35 mm Lift of presser foot 4 5 mm Needle GB 134R Lubricating oil New Defrix Oil No 1 Dimensi...

Страница 8: ...er foot lifting lever 15 Thread guide pin 16 Eye protection cover 17 Tension controller No 1 18 Hand wheel 19 Presser regulator cover 20 Stitch regulator connection connector 21 Panel junction cable connection connector 22 Hook cover 23 Connecting plate large 24 Connecting plate small Principal Parts 1 Screw in the presser foot 2 Presser foot 3 Throat plate 4 Needle clamp 5 Needle bar thread hook ...

Страница 9: ...are not using your sewing machine 1 Turn OFF the power switch 2 Remove the power plug from the wall outlet Power switch Turn ON the machine set the power switch to I Turn OFF the machine set the power switch to O Power cord Insert the electric power cord plug into the corresponding inlet ON OFF Name and Function of each component ...

Страница 10: ...disk 4 Install thread stand on frame with two setscrews CAUTION Turn OFF the power switch Always must be disconnected plug from socket outlet Installing the thread guide Insert thread guide pin into the frame with the holes in the pin faced to tension controller No 1 Pat the top of the thread guide pin with the handle of screwdriver to prevent the pin from slipping off easily CAUTION Turn OFF the ...

Страница 11: ...x the presser regulator cover with the setscrews CAUTION Turn OFF the power switch Always must be disconnected plug from socket outlet Installing the eye protection cover 1 Place eye protection cover and washer in the written order on eye protection cover mounting plate and fix them with set screw 2 Install eye protection cover mounting plate on frame with two setscrews DANGER Be sure to install t...

Страница 12: ...ar to the lowest point end Loosen setscrew and adjust the height of presser foot The minimum clearance be tween the throat plate and the presser foot has been factory adjusted to 0 5 mm at the time of shipment Adjust the presser foot height so that an approximately 0 5 mm clearance is provided between the material and the presser foot sole Minimum clearance between the throat plate and the presser...

Страница 13: ...tion stroke 1 8 to 3 5 mm at the time of shipment After the completion of the adjustment install the presser regulator cover which you have removed before the adjust ment CAUTION When the stroke is changed the clearance between the presser foot and the throat plate will change Re adjust the presser foot height to a value which matches the material thickness Handwheel Push and turn the Hand pulley ...

Страница 14: ...hread stand thread guide Bobbin winder Raise the bobbin winder fully turning slightly until the positioning latches engage Set the large spool over the bobbin winder side anchor Set the household type thread onto the spool holder disk and then insert a spool cap in place To set a large diameter spool set the bobbin winder side anchor upside down to stabilize the spool Pass the thread coming from t...

Страница 15: ...read the thread guide base 4 Installing the bobbin Wind thread on the bobbin clockwise by several turns Place the bobbin on the bobbin winding shaft Press the bobbin presser Thread is automatically wound on the bobbin 5 CAUTION Keep hand away from the handwheel while the sewing machine is running Turn OFF the power switch Always must be disconnected plug from socket outlet Hook cover ...

Страница 16: ...at the bobbin runs clockwise Passing the thread through the slit of the bobbin case continue passing it under the thread tension spring and pull out the thread open end about 5cm from the bobbin case 7 Thread tension spring Thread passage 5cm The bobbin should run clockwise Set the bobbin in the sewing machine Insert the bobbin case fully into the hook and close the bobbin case latch 8 CAUTION Tur...

Страница 17: ...akage stitch skipping thread breakage or damage to materials Parallel Flat plate Tightens Loosens Needle clamp screw Needle with a round shank Scarf Due to the position of the machine in both the frame and sit down table the scarf goes to the back and the groove to the front Attaching the needle 1 Turn OFF the power switch 2 Lower the presser foot 3 Move the needle bar up to the highest position o...

Страница 18: ...he upper end of its stroke Then pass the thread through it Pass the thread through the thread guide 1 Pass the thread through the thread guides and Thread the needle Pass the thread through the clearance between the two thread tension disks Thread the machine head in numerical order to 3 Thread take up 2 Thread tension disk ...

Страница 19: ...I dealers when you purchase it Proper thread tension Improperly adjusted thread tension may cause puckering on materials inferior stitches or thread breakage Center of the material Needle thread Bobbin thread Bobbin thread Needle thread Bobbin thread The needle thread tension is too low The needle thread tension is too high Thread tension dial Increase the needle thread tension Decrease the needle...

Страница 20: ...f the cloth to be sewn Decrease the sewing speed when using frictional thread such as the metallic thread Depending on the type of thread and the direction of the stitch the thread may not be cut by the automatic thread cutting device of the sewing machine In that case please trim the thread after stitching 2 to 3 needles from the back side of the fabric to the front side A B Presser foot lifting ...

Страница 21: ...the end of sewing can be set on the operation panel For details please refer to the Stitch Regulator User Manual JUKI SMART STITCH This is the function for remaining the stitch length at the preset value by means of the sensor which reads the movement of the material Hereinafter referred to as JSS Refer to the following for the TL 2200QVP Stand up type Sit down type Sensor Sensor Quilt sandwiches ...

Страница 22: ...e handles it will sew with the stitch length that has been set If you do not operate the sewing machine for a certain period of time the sewing machine will automatically stop sewing Precise Stitch Mode When you press the start button on right handle bar green light at JSS will indicate machine is on When you begin to move the machine the needle will move creating a continuous even stitch When you...

Страница 23: ...s adequately tensed Manual Stitch Mode When you press the start button on the right handlebar the machine will sew at the sewing speed that has been set Non regulated mode JSS does not function Trimming Thread When you press this button Upper and lower threads are trimmed automatically Auto Thread Trimming When the sewing machine is stopped the automatic thread trimmer is engaged trimming both upp...

Страница 24: ... Use the screwdriver included with the sewing machine to re move any hazardous sharp shavings from the disassembled quilting frame and other components as there is a risk of injury from such hazardous sharp points The following functions can be assigned to the left button using the custom switch pedal switch Thread trimmer Thread trimming is carried out Needle travel up down Needle is moved by a h...

Страница 25: ... foot controller and move the material the machine will form stitches with the stitch pitch that has been set Precise Stitch Mode When you press the foot control the green light at JSS will indicate machine is on When you begin to move the fabric the needle will move creating a continuous even stitch Setting the maximum Sewing Speed You can set the maximum sewing speed in 5 increments Manual Stitc...

Страница 26: ...g While pressing the foot controller pedal move the fabric to form stitches CAUTION While sewing don t pull or push the fabric with force as it will cause the needle to break or cause injuries The following function can be assigned to the operation step that is activated by depressing the foot controller to B side using the custom switch pedal switch Thread trimmer Thread trimming is carried out N...

Страница 27: ... release pedal again to deactivate JSS In the case the sewing machine is held in the stop state for a while after having set the KICK to the ON state the KICK will be automatically turned OFF When the JSS is in the ON state the automatic thread trimmer and pedal switch will not operate Setting the Foot Pedal When you depress the pedal the sewing machine runs When you release the pedal the sewing m...

Страница 28: ...in estimate can be set 1 Inputting the bobbin thread length In the case of inputting a rough amount Find the rough amount of thread you use in the table shown below according to the type and thickness of the thread Then set that thread amount 2 Inputting the bobbin thread amount at the time of reset Assume the estimate of thread wound on the bobbin with respect to the thread amount that is fully w...

Страница 29: ... the power switch Always must be disconnected plug from socket outlet Maintenance Turn OFF the power switch Remove the needle Loosen the screws to remove the throat plate Then clean up the hook components using a cleaning brush Maintenance and lubrication CAUTION Always must be disconnected plug from socket outlet before cleaning or lubricating the sewing machine Cleaning the hook ...

Страница 30: ...er the sewing machine remained unused for an extended period of time apply a larger quantity of oil five to seven drops than usual If the quantity of oil is excessive oil can drop on the material Take care not to apply an excessive quantity of oil to the needle bar and the hook section After the lubrication carry out trial stitching without exceptions After the lubrication wipe off the oil remaini...

Страница 31: ...properly 2 The needle hits the throat plate or the presser foot Replace or correctly attach the needle Correctly position the needle throat plate or presser foot 16 Stitches are puck ered 1 The tension of the needle thread is not balanced with that of the bobbin thread 2 When the combination of the needle and the thread is improper 3 The needle is too thick for the material Balance the tension Pro...

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