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BT43

MANUAL BACK-TACKING DEVICE

AZ7000SD-8, AZ8000SD-8, AZF8000G class

Thank you for purchasing BT43.

For properly

your BT43, please read over this manual and the manual for sewing machine

together to fully understand their contents.
Af ter reading the instruction manual, please keep it in a location where it is easily acces-
sible to the operator.

Parts List

Instruction Manual

Содержание AZ7000SD-8

Страница 1: ...rchasing BT43 For properly your BT43 please read over this manual and the manual for sewing machine together to fully understand their contents After reading the instruction manual please keep it in a location where it is easily acces sible to the operator Parts List Instruction Manual ...

Страница 2: ...ol panel 11 3 3 Adjustment at beginning of sewing 12 3 3 1 Tension releaser adjustment at beginning of sewing 12 3 3 2 Stitch plate tongue adjustment at beginning of sewing 12 3 4 Adjustment at end of sewing 13 3 4 1 Tension releaser adjustment at end of sewing 13 3 4 2 Stitch plate tongue adjustment at end of sewing 13 3 5 Mesh materials 14 3 6 Automatic motor stop function setting 14 3 7 Automat...

Страница 3: ...al we have made our best efforts for making it free of any error or omission If any error or omission should yet be found it might not be rectified immediately Attention This instruction manual is designed mainly for technicians but it is advisable that also operators read the instructions with mark to use the machine properly 6 Test mode usage 19 6 1 Solenoid function test 19 6 2 Reset 19 6 3 Fab...

Страница 4: ...with our con ventional machines This BT43 device is applied to mesh materials and prevents malfunctions during operation This BT43 device improves usability of the machine because of making the length of the thread chain the same by stopping the motor automatically With use of automatic presser foot lifter mechanism special ordered this BT43 device also improves usability of the machine because of...

Страница 5: ... Table 1 Change also the fuse and the voltage panel to ones applicable to the power supply voltage referring to Tables 1 and 2 Before operation check that the power supply voltage used is the same as the voltage printed on the control box It is printed on the plate on the rear of the control box At shipment the voltage printed on the control box is 220 V and the usable range is 220 to 240 V If usi...

Страница 6: ...3 AZ SD AZF G BT43 2 2 Control box installation Fig 2 2 2 Installation 20 70 control box 280 Install the control box under the table with the wood screws referring to Fig 2 2 operator ...

Страница 7: ...se intermediate cable 4P white rotation detector unit 2P blue tension releaser solenoid 3P white fabric detection sensor 2P white stitch plate tongue solenoid ground wire to stitch plate tongue solenoid fabric detection sensor To prevent the cord from hitting against a moving object and thereby tearing attach the cord securely to some place like the table leg Be careful not to damage the cord ÃÁÕÔ...

Страница 8: ... connected as shown in Fig 2 4 brown green yellow Use always a fuse applicable to the capacity of the power voltage used referring to Table 3 Even if the glass tube for the fuse has the same size as applicable one its capacity may be different Be sure to check the printed capacity power supply voltage fuse capacity part number 100 110 V 2 A 1070020 200 240 V 1 A 0010912 Using a fuse with inapplica...

Страница 9: ... screws and rotate the machine pulley clockwise while taking care not to move the synchronizer 6 When the upper looper is at the extreme left tighten the screws securely 7 Run the machine again and check that the machine stops when the upper looper is at the extreme left at the extreme left stitch plate surface Note This function needs a motor that stops by external input signal Connect the black ...

Страница 10: ...ops by external input signal and outputs signal for the presser foot lifter 1 Install the regulator and the solenoid valve on the proper position under the machine table 2 Set the air cylinder on the rear of the machine Insert the groove of the lifter holder to the lifter lever 2 8 1 Installing presser foot lifter mechanism Fig 2 8 Fig 2 9 ...

Страница 11: ... 2 Air piping Refer to Fig 2 10 to connect the air tubes Cut the tubes properly for the connection Set the regulator at 0 2 to 0 4 MPa 2 Installation presser foot lifter cylinder 4 2 5 4 2 5 solenoid vale 6 4 to air source regulator ...

Страница 12: ...g to 0V GND or circuit ground The name differs depending on the manufacturer to motor stop signal and presser foot lifter Note Some manufacturers use the same connector for the input and output signals of presser foot lifter Fig 2 12 Example In case of Y motor Connect the black wire and the white wire of the intermediate cable to the pin with the number as below Fig 2 12 Option A white 12P black w...

Страница 13: ...ing the thread chain to the front Pull the thread chain from the left to the right along the cloth plate Then the thread chain cutter cuts the thread chain and holds the remaining portion Repeat Steps 3 to 5 To adjust the plain sewing seam condition turn the thread tension spring caps to in Fig 3 1 To adjust the thread chain seam condition turn the thread tension spring caps in Fig 3 1 Thread chai...

Страница 14: ...key This is for decreasing the set value MODE key This is for changing the selected mode CLOCK lamp This is lighted by detection of the machine s rotation This blinks two times for each rotation START lamp This is lighted when the count at the beginning of sewing is adjusted END lamp This is lighted when the count at the end of sewing is adjusted TENSION TONGUE lamp This shows the current setting ...

Страница 15: ...by pressing the and keys so that the stitch plate tongue sticks out when the sensor detects the material end and the material reaches the needle holes Two counts indicate one stitch 1 Press the MODE key several times to light the START lamp only 2 Adjust the count by pressing the and keys so that the tension releaser changes the thread chain seam condition to the plain sewing seam condition when t...

Страница 16: ...releaser changes the thread chain seam condition to the plain sewing seam condition when the sensor detects the material end and the material reaches the needle holes Two counts indicate one stitch 1 Press the MODE key several times to light the END and TONGUE lamps 2 Adjust the count by pressing the and keys so that the stitch plate tongue is recessed when the sensor detects the mate rial end and...

Страница 17: ...e and keys so that the device detects the material end correctly 5 Turn the power OFF When sewing normal materials other than mesh materi als return the value to 0 Fig 3 10 lighted By using the automatic motor stop function the count from material end detection of the sensor to motor stop can be set 1 Turn the power OFF 2 While pressing the and keys at the same time turn the power ON 3 Press the M...

Страница 18: ... presser foot lowering lighted 1 Turn the power OFF 2 While pressing the and keys at the same time turn the power ON 3 Press the MODE key several times to light the START END and TENSION lamps 4 With the and keys adjust the time from material detection of the sensor to presser foot lowering 5 Turn the power OFF 3 Proper operation ...

Страница 19: ...e thread chain into a seam beautifully 1 Turn the thread chain presser plate in the arrow direction with raising it slightly See Fig 4 2 2 Loosen the screw If the knife does not move at this moment tap the part lightly with something like a screwdriver 3 Change the knife Regarding the direction and position of a knife see Fig 4 2 4 Tighten the screw securely and fasten a new knife 5 Fit the pin ho...

Страница 20: ...and turn the solenoid cover in the arrow direction 2 Loosen the screws and remove the solenoid 3 Adjust the lower looper 4 Insert the pin screw into the hole of the stitch plate tongue and reinstall the solenoid 5 Tighten the screws securely 6 Tighten the screws securely Rear position 1 When the tongue is retracted loosen the screw 2 Apply the rubber cushion of the arm to the solenoid cover so tha...

Страница 21: ...ate tongue Increase each count at the beginning of sewing so that the stitch plate tongue or the tension releaser functions when materials come at the needle drop 3 3 The thread tension at the beginning of sewing is too high The thread chain holding pressure is too high Decrease the holding pressure 4 1 Changing of the thread chain seam condition is unstable at the end of sewing The setting for me...

Страница 22: ...le noid can be tested either lamp lighted This is to reset the memory to the condition at shipment 1 Turn the power OFF 2 While pressing the and keys turn the power ON 3 Press the MODE key several times to light the END and TENSION lamps 4 Press the LOCK key and reset the memory ok The memory is reset completely EE The memory is in abnormal condition not reset 5 Turn the power OFF If the display s...

Страница 23: ... in 2011 8 BT43 AZ G Printed in Japan 2011 8 1H Y 4 4 1 2 NISHITENMA KITA KU OSAKA JAPAN 530 0047 TEL 81 6 6364 5621 FAX 81 6 6364 71 85 ５３０００４７大阪市北区西天満 4 丁目 4 番１２号 T EL ０６６３６４５６２１代 F A X ０６６３６４７１８５ ...

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