Toyota ESP9000 Service Manual
  1. Manuals
  2. Brands
  3. Toyota Manuals
  4. Sewing Machine
  5. ESP9000
  6. Service manual
Toyota ESP9000 Service Manual

Toyota ESP9000 Service Manual

Embroidery machine
Hide thumbs
Table of Contents

Advertisement

Quick Links

SERVICE MANUAL
Embroidery Machine
ESP9000
(15 needles)

Advertisement

Table of Contents
loading

Related Manuals for Toyota ESP9000

Summary of Contents for Toyota ESP9000

  • Page 1 SERVICE MANUAL Embroidery Machine ESP9000 (15 needles)
  • Page 3 Ｈｏｗ to Ｕｓｅ ｔｈｉｓ Ｓｅｒｖｉｃｅ Ｍａｎｕ ａｌ 1．This service manual applies to the ESP9000. Model names are indicated only for sections equipped with each model. 2．Refer to the section on TROUBLESHOOTING first. Trouble often results from two or more causes. The TROUBLESHOOTING section indicates the correct order and method of troubleshooting.
  • Page 4 Ｉｎｓｐｅｃｔｉｏｎ & Repairs 1．When parts need to be replaced, use only parts certified by Aishin Seiki Co., Ltd., to ensure machine performance. 2．To prevent any accident from occurring, be sure to turn the power OFF before repair. CONTENTS １ ． SPECIFICATIONS.......................

  • Page 5: Breaks

    power supply does turn on..................2 error message displayed SEWING ”Check MOTOR”........3 error message displayed “Check MOTOR”............4 error message displayed Check ” MOTOR”.............5 error message displayed CASE ”NEEDLE ERROR” ..........6 Holder does return stroke center after home position return......7 Thread comes needle......................8 Skips stitches..........................
  • Page 6 2-10 Bobbin thread breaks........................12 2-11 Needle breaks..........................1 2-12 Thread wiper hook does operate..................14 2-13 Thread trimming fails........................15 2-14 Puckering............................16 2-15 Improper tension..........................17 2-16 Jump function does work....................18 2-17 error message displayed “THREAD BREAK” ............19 2-18 Stitch registration slips out.......................20...
  • Page 7 ３．ＡＤＪＵＳＴＭＥＮＴ ＯＦ ＭＡＩＮ ＣＯＭＰＯＮＥＮ ........21 ＴＳ Timing needle rotary hook................21 Position hook support....................23 Standby position thread catcher..................24 Blade pressure..........................Picker position..........................2 Position thread wiper hook..................28 Adjustment jump motor position................29 Tension drive belts &...
  • Page 8 C....................30 Tension deceleration belts E...................31 3-10 Limit sensor............................32 3-11 Thread sensor..........................3 3-12 Power box............................４．ＲＥＰＬＡＣＥＭＥＮＴ ＯＦ ＭＡＩＮ ＣＯＭＰＯＮ ......36 ＥＮＴＳ Rotary hook............................Thread...
  • Page 9 cutter...........................3 Thread catcher..........................3 Needle bar............................Needle reciprocator.......................41 Thread change motor........................43 Power supply board........................44 Power circuit board........................45 Jump motor............................46 4-10 Main circuit...
  • Page 10 board...........................47 4-11 Operation assembly.......................48 4-12 Upper shaft sensor.........................49 4-13 Sewing machine motor........................50 4-14 motor..............................51 4-15 motor..............................52 4-16 Thread wiper motor........................53 4-17 Thread sensor........................... 4-18 Operation control circuit board....................55...
  • Page 11 4. REPLACEMTNT OF MAIN COMPONENTS 4-9. Jump motor ［Removal］ (1) Remove the needle case. [Please refer to 『“ 4-5. Needle bar reciprocator” 』 on page 41] (2) Remove five set screws (a) and the arm front cover L. (Fig.1) (3) Remove each setting screws and the Arm front cover L thread stand plate, bobbin winder base and rear cover.
  • Page 12 FIG.4 4.REPLACEMENT OF MAIN COMPONENTS 4-10. Main circuit board ［Removal］ (1) Remove two setting screws (a) and the table set. (Fig.1) (2) Remove four set screws (b) and the base cover rear R. (Fig. 1) (3) Loosen two setting screws (c), remove other two set screws (d), move the case cover upper upwards, disconnect Base cover...
  • Page 13 FIG.3 -48-...
  • Page 14 4.REPLACEMENT OF MAIN COMPONENTS 4-11. Operation box assembly ［Removal］ (1) Loosen retaining screw (a) and rotate the operation box in the direction of the arrow to set the box in the upright position (Fig.1). (2) Remove retaining screw (b) and two retaining screws (c) and the operation box cover (Fig.1).
  • Page 15 ［Installation］ (1) Install the upper shaft sensor on the sensor base with two setting screws (d). (Fig.3) (2) Insert the connector of the upper shaft sensor in CN3 on the main circuit board. (Fig.5) (3) Fix the upper shaft sensor set with two setting screws (c) in the position where the center of the sensor comes to the center of the rotation detecting plate.
  • Page 16 ［Installation］ (1) Two set surfaces of the sewing machine motor shaft and two setting screws (c) of the lower shaft joint are aligned and insert the sewing machine motor. FIG.3 (2) Fix the sewing machine motor with four Center setting screws (d). (Fig.4) (3) Insert two setting screws (c) of the lower shaft joint gradually, locate them vertically to the setting points and...
  • Page 17 (4) Remove four setting screws (d) and X motor from the bracket. (Fig.2) FIG.2 ［Installation］ Power circuit board Lower shat joint (1) Mount the X motor to the motor base Sewing machine with four setting screws (d) (Fig.2). motor (2) Set the X motor gear to the belt and temporarily secure the motor base to the X base B with two setting screws (c) (Fig.2).
  • Page 18 FIG.1 X base B X motor Motor base 4.REPLACEMENT OF MAIN COMPONENTS 4-15. Y motor ［Removal］ (1) Remove four set screws (a) and the base cover rear R. (Fig.1) FIG.2 (2) Remove two setting screws (b) and the fan set. (Fig.2) (3) Remove the Y pulley box adjusting screw (c) and nut (d) and loosen setting screw (e) and nut (f).
  • Page 19 (4) Disconnect the connector, remove two set screws (g) and Y motor bracket set. (Fig.3) (5) Remove four setting screws (h) and the Y motor. (Fig.4) ［Installation］ (1) Mount the Y motor to its bracket with FIG.1 four setting screws (h). (Fig.4) (2) Set the Y motor gear to the belt and temporarily secure them with two Fan set...
  • Page 20 wiper motor. (Fig.1) (4) Remove the setting screw (d) and (e), and the upper thread hook lever. (Fig.3) FIG.3 (5) Remove the three setting screws (f) and the motor base.(Fig.3) Note: Be sure to insert the small Y motor bracket washer that is contained in each setting screws of (3) and (4) sections.
  • Page 21 FIG.2 Motor base Upper thread hook lever FIG.1 Thread wiper motor base FIG.3 Connecting rod plate Thread wiper hook base -56-...

  • Page 22: Thread Sensor

    4.REPLACEMENT OF MAIN COMPONENTS 4-17. Thread sensor ［Removal］ Tension base cover (1) Remove the two each setting screws (a), then remove the change cover and relay circuit board cover. (Fig.1) (2) Remove the connector CN2. Change cover (3) Remove the tension base cover. (Fig.1) Relay circuit board cover (4) Raised the connector upwards and...
  • Page 23 4.REPLACEMENT OF MAIN COMPONENTS 4-18. Operation control circuit board ［Removal］ (1) Remove four setting screws (a) and the base cover rear R. (Fig.1) (2) Loosen the two setting screws (b), remove the two setting screws (c) and Base cover disconnect connectors CN12 and CN7, rear R then remove the case cover upper.
  • Page 24 FIG.4 -59-...
  • Page 25 1.SPECIFICATIONS １．ＳＰＥＣＩＦＩＣＡＴＩＯＮＳ ESP9000 Item Specifications Type of stitch Lock stitch type sewing machine (for automatic embroidery only) Rotary hook Vertical 2 revolution type (eccentric) Thread take-up lever Cam take-up lever Needle bar stroke 50 ± 0.2 mm Number of needles...
  • Page 26 Power supply and consumption 100～120/200～240VAC, 50/60Hz, 220W Dimensions 835(H) x 745(W) x 740(D)

  • Page 27: Troubleshooting

    2.TROUBLESHOOTING ２．TROUBLESHOOTING power supply does not turn on Preliminary inspection ・ Power cord may be unplugged (AC power cord). ・ Cable from the power box to the embroidery machine may be disconnected (DC power cord). Power box Main circuit board Console 1 board Console 2 board...
  • Page 28 Item Method Standard Action Take out fuse and inspect it Fuse 250V6.3 Replace visually (outside) A,without fuse. fusion 5V power 5.0to5.2V Adjust or supply when replace turned on power Check the voltage across ① box. See and ⑦with a circuit tester. P.44.
  • Page 29 2.TROUBLESHOOTING 2-2 An error message is displayed Preliminary inspection ・ Upper shaft torque may be too large ・ Needle may be interfering with the embroidery hoop. “Check! SEWING ・ Thread may be stuck. MOTOR ” Operation panel Power box Item Method Standard Action...
  • Page 30 Connection Must be Connect connecte the cable connector correctly correctly or replace CN 3 the main the circuit board. See P.47.
  • Page 31 2.TROUBLESHOOTING 2-3 An error message is displayed Preliminary inspection ・ The embroidery frame holder may be jammed. ・ The cloth may be stuck at a table corner. “Check! ・ The embroidery frame may be interfering. X MOTOR ” Operation panel Power box Item Method...
  • Page 32 125V,20 Fuse Replace A Must the fuse. Take out the fuse and be in check it visually. good condition Connection Must be Connect connecte correctly connectors CN 1, CN7 correctly. replace. See P.47.
  • Page 33 2.TROUBLESHOOTING 2-4 An error message is displayed Preliminary inspection ・ The embroidery frame holder may be jammed. ・ The cloth may be stuck at a table corner. “Check! ・ The embroidery frame may be interfering. Y MOTOR ” Operation panel Power box Item Method...
  • Page 34 125V,20 Fuse Replace A Must the fuse. Take out the fuse and be in check it visually. good condition Connection Must be Connect connecte correctly connectors CN 4, CN correctly. replace. See P.47.
  • Page 35 2.TROUBLESHOOTING 2-5 An error message is displayed Preliminary inspection ・ Upper thread may be stuck, or thread trimming error. ・ LCD display at right bottom corner is <-> “NEEDLE instead of <8>. CASE ERROR ” Operation panel Item Method Standard Action Thread change Connection...
  • Page 36 Connection Must be Replace. of connector connected CN10 CN 10. correctly. P.47. -11-...
  • Page 37 2.TROUBLESHOOTING 2-6 Holder does not return Preliminary inspection to stroke center after home position return. ・ Initialize of LCD display may be OFF when turn the power on. Operation panel Item Method Standard Action X Y holder X.Y holder Photo-sensor X=65.7 Adjust position...
  • Page 38 Phase U, X motor : Replace. phase V, in the phase W, range of 0 Pgs.51 phase A to 3.5 V and 52. Y motor : Press emergency stop phase B in the button. While turning the motor by hand, check the voltage of the output range of 0 sections below with a circuit...
  • Page 39 2.TROUBLESHOOTING 2-7 Thread comes off Preliminary inspection needle. ・ The needle thread tension may be too high. ・ The bobbin thread tension may be too high. ・ The thread may be stuck on the thread take-up lever. ・ The margin of the needle thread may be insufficient.
  • Page 40 Picker C=7～9 Adjust. height (when P.27. piker solenoid is ON) -15-...
  • Page 41 2.TROUBLESHOOTING 2 8 Skips stitches Preliminary inspection ・ A needle may be bent. ・ A needle may be fitted incorrectly. ・ Thread path may be incorrect. ・ Cloth tension may be too weak. ・ Needle size may be incorrect for the thread. Needles and rotary hook Item...
  • Page 42 2.TROUBLESHOOTING 2-9 Needle thread breaks Preliminary inspection ・ Needle thread path may be incorrect. ・ Thread tension may be too tight. ・ A needle may be bent. ・ A needle may be fitted incorrectly. ・ Needle size may be incorrect for the thread. ・...
  • Page 43 2.TROUBLESHOOTING Item Method Standard Action Needles and Needles and Needle lift A=201°± Adjust. rotary hook rotary hook Hook tip placed 3° at needle center (Standar P.21. d 1.8 to .1mm) Needle bar B=8.0± Adjust. height 0.1mm .21. Lowest needle position Needle C=1.0±...
  • Page 44 2.TROUBLESHOOTING 2-10 Bobbin thread breaks Preliminary inspection ・ The bobbin thread tension may be too tight. ・ The bobbin thread may be threaded incorrectly. ・ The bobbin thread may be wound too loose. Needle plate Item Method Standard Action Burred Free of Repair or edges on...

  • Page 45: Needle Breaks

    2.TROUBLESHOOTING 2-11 Needle breaks Preliminary inspection ・ The needle may be clamped incorrectly. ・ The needle may be bent or blunt. ・ The needle may be too thin for the cloth. ・ The starting position may be incorrect. Needle and rotary hook Item Method...
  • Page 46 Thread Must Adjustme wiper hook return nt is return smoothly performe d by loosenin g a guide Ｇ ｕ ｉ ｄ screw. Push the guide pin down as far as it will go in the direction of the arrow and check the returning movement of the pin.

  • Page 47: Thread Wiper Hook Does Not Operate

    2.TROUBLESHOOTING 2-12 Thread wiper hook does not operate Preliminary inspection ・ Thread wiper hook may need cleaning (lint, dust, etc.) ・ Upper thread hook lever may be deformed Item Method Standard Action Thread wiper Thread Must Adjust. mechanism wiper return hook return smoothly P.28.

  • Page 48: Thread Trimming Fails

    2-13 Thread trimming Preliminary inspection fails 2.TROUBLESHOOTING ・ Lint may be built up between the movable knife and fixed knife. ・ Check thread trim timing. (push function key and check thread trim timing) Item Method Standard Action Fitted Adjust. position A=0.5m of the thread P.24.
  • Page 49 Smear the Thread Must be Adjust. thread cutter contact catcher with a felt pen, evenness evenly. P.25. and check if the thread cutter makes 2-14 Puckering Preliminary inspection contact evenly. Blade Adjust. ～ pressure (0.6 P.25. ～ 1.5kg・ ㎝) 2.TROUBLESHOOTING Thread tension Thread tension ・...

  • Page 50: Improper Tension

    The screw Initial thread B=5±1g take-up retracting spring lever tension aligned 2-15 Improper tension Preliminary inspection with ratchet Hold the thread before the needle mark roller and pull the thread downward. Check the tension when the thread take-up spring moves approximately 1mm.

  • Page 51: Jump Function Does Not Work

    take-up roller. Pull the thread downward and A=20±1 the thread take-up spring starts Move the spring moving. Check the length of thread retracting stroke (A) pulled until the spring stops. lever position 2-16 Jump function Needle Roller does not work Preliminary inspection down adjust...
  • Page 52 Item Method Standard Action Jump motor Remove the rear cover and Installation A=0.5 ± Adjust. (pulse motor) position of 0.1mm 0.5mm check jump motor P.29. Jump lever Needle bar reciprocator Must be Connection Connector ①－⑥ power connecte Connect connector correctly. correctly.
  • Page 53 2.TROUBLESHOOTING 2-17 An error message is displayed Preliminary inspection When not displayed even if the needle thread breaks ・ The thread sensor may be OFF. “THREAD BREAK” When displayed even if the needle thread is not break. Operation panel ・ The needle thread may not be set correctly. ・...
  • Page 54 Connection Must be Replace. connecte connector P.45. CN 7 correctly. Check connector visually. -22-...

  • Page 55: Stitch Registration Slips Out

    2.TROUBLESHOOTING 2-18 Stitch registration slips out Preliminary inspection ・ The cloth may be set incorrectly in the embroidery frame. ・ The embroidery frame holder may be interfering. ・ The cloth may be stuck in the table. ・ The embroidery frame may be interfering, ・...
  • Page 56 Encoder Replace. output when X Y motor turned Pgs.51 and 52. Press the emergency stop button check voltage of the sections below with a circuit tester. (X motor) Across ⑪5V(red)and⑫ GND ( red and black) (Y motor) Across ⑥ 5V(red)and ⑦ GND (red and black) -24-...
  • Page 57 3.ADJUSTMENT the position of the needle and hook 3. ADJUSTMENT tip. (6) Firmly tighten the three retaining screws 3-1 Timing of needle and rotary (a) (Fig.2). hook (7) Mount the needle plate, the hook cover 1.Needle lift (rotary hook position) and and the table set.
  • Page 58 FIG.2 FIG.3 201° ±3° 0.1 - 0.3 mm -22-...
  • Page 59 3.ADJUSTMENT 2.Needle bar height [Inspection] (1) Remove the table set. (2) Remove the needle plate. (3) Rotate the hand wheel anti-clockwise. When the needle bar comes to the bottom dead center, the distance from the rotary hook center to the needle tip must be 8.0 ±0.1mm (Fig.1).
  • Page 60 FIG.2 FIG.4 Needle bar Stopper Needle bar Connecting stud FIG.3 針棒 Needle bar Needle bar height 針棒高さ冶具 gauge Needle plate bracket 針板ﾌﾞﾗｹｯﾄ -24-...
  • Page 61 3.ADJUSTMENT 3-2 Position of the hook support [Inspection] (1) Remove the table set. (2) Remove the needle plate. (3) There must be a clearance of 0.5 to Within 0.8mm between the hook support 0.2mm and the rotary hook (Fig.1). (4) Distance B (clearance between the needle center and the center of the protrusion on the hook support) must not exceed 0.2mm (Fig.1).
  • Page 62 3.ADJUSTMENT check the standby position of the thread Standby position of thread catcher [Inspection] (1) Remove the needle plate. 0 ± 0.5mm (2) Remove the table set. (3) Turn the power on and press the thread trim key to perform the thread trimming.
  • Page 63 FIG.4 Drive arm FIG.5 -27-...
  • Page 64 3.ADJUSTMENT 3-4 Blade pressure [Inspection] (1) Remove the needle plate. (2) Remove the table set. (3) Remove four set screws (a) and remove the bed cover A (Fig.1). (4) Remove knife connecting plate from the pin of the thread trimming lever and smear the thread catcher with a felt pen (Fig.2).
  • Page 65 cutter in position with the left-side set screw (a) (Fig.5 and 6). 3..ADJUSTMENT [Adjustment] If the felt pen marking on the thread catcher looks like A or B, adjust the angle of the thread cutter as necessary then adjust the blade pressure (Fig.4). 1) If the felt pen marking looks like A (Fig.4).
  • Page 66 (Fig.2). FIG.6 [Adjustment] (1) If clearance A between the picker tip and the bobbin differs from that specified, loosen two set screws (c) and the set screws (a), adjust the position of the picker by sliding the picker solenoid base back and forth. After adjusting, tighten the set screw (a), then move the picker base to the backmost position, set the picker...
  • Page 67 the thread wiper hook must catch the thread (Fig.1). (2) Distance A from the needle center to the thread wiper hook tip must be 11 to 12mm during operation (Fig.2). (3) Distance B from the right end of the thread wiper hook to the needle center must be 1 to 3mm (Fig.2).
  • Page 68 Guide pin FIG.3 FIG.1 3.ADJUSTMENT 3-7 Adjustment of the Jump motor FIG.2 position [Inspection] Thread wiper motor base (1) Remove the needle case. [『Refer to “ 4-5.Replacement of needle bar reciprocator” 』] -32-...
  • Page 69 (2) Remove three set screws (a), two set screws (b) and remove the arm front cover L (Fig.1). (3) In this state, the clearance between the jump lever and needle bar reciprocator must be 0.5mm (Fig.2). Arm front cover L [Adjustment] (1) Loose the two set screws (c) and FIG.1...
  • Page 70 FIG.3 -34-...
  • Page 71 3.ADJUSTMENT the position of the needle and hook 3. ADJUSTMENT tip. (6) Firmly tighten the three retaining screws 3-1 Timing of needle and rotary (a). (Fig.2) hook (7) Mount the needle plate, the hook cover 1.Needle lift (rotary hook position) and and the table set.
  • Page 72 FIG.2 FIG.3 201° ±3° 0.1 - 0.3 mm -22-...
  • Page 73 3.ADJUSTMENT 2.Needle bar height [Inspection] (1) Remove the table set. (2) Remove the needle plate. (3) Rotate the hand wheel anti-clockwise. When the needle bar comes to the bottom dead center, the distance from the rotary hook center to the needle tip must be 8.0 ±0.1mm.
  • Page 74 FIG.2 Needle bar Stopper Needle bar Connecting stud FIG.3 -24-...
  • Page 75 3.ADJUSTMENT 3-2 Position of the hook support [Inspection] (1) Remove the table set. (2) Remove the needle plate. (3) There must be a clearance of 0.5 to Within 0.8mm between the hook support 0.2mm and the rotary hook. (Fig.1) (4) Distance B (clearance between the needle center and the center of the protrusion on the hook support) must not exceed 0.2mm.
  • Page 76 3.ADJUSTMENT Then perform the thread trimming to Standby position of thread catcher [Inspection] (1) Remove the needle plate. 0 ± 0.5mm (2) Remove the table set. (3) Turn the power on and press the thread trim key to perform the thread trimming.
  • Page 77 FIG.4 Drive arm FIG.5 -27-...
  • Page 78 3.ADJUSTMENT 3-4 Blade pressure [Inspection] (1) Remove the needle plate. (2) Remove the table set. (3) Remove four set screws (a) and remove the bed cover A. (Fig.1) (4) Remove knife connecting plate from the pin of the thread trimming lever and smear the thread catcher with a felt pen.
  • Page 79 cutter in position with the left-side set screw (a). (Fig.5, 6) 3..ADJUSTMENT [Adjustment] If the felt pen marking on the thread catcher looks like A or B, adjust the angle of the thread cutter as necessary then adjust the blade pressure. (Fig.4) 1) If the felt pen marking looks like A.
  • Page 80 (Fig.2) FIG.6 [Adjustment] (1) If clearance A between the picker tip and the bobbin differs from that specified, loosen two setting screws (b) to adjust the clearance A. (Fig.4) Note: Incase the picker solenoid is exchanged; Loosen two set screws (c) and the set screws (a), adjust the position of the picker by sliding the picker solenoid base back and forth.
  • Page 81 the thread wiper hook tip must be 11 FIG.1 mm or more during operation. (Fig.2) (3) Distance B from the right end of the thread wiper hook to the needle center must be 1 to 3mm. (Fig.2) [Adjustment] (1) If the thread wiper hook does not catch the thread, loosen four setting screws (a) to move the thread presser base in the direction of the...
  • Page 82 Guide pin FIG.1 FIG.3 3.ADJUSTMENT 3-7 Adjustment of the Jump motor position FIG.2 [Inspection] Thread wiper (1) Remove the needle case. motor base [『Refer to “ 4-5.Needle bar reciprocator” 』 on page 41] (2) Remove three setting screws (a), two set screws (b) and remove the arm front cover L.
  • Page 83 reciprocator must be 0.5mm. (Fig.2) [Adjustment] (1) Loose the two setting screws (c) and FIG.1 adjust the jump motor position by 0.5mm Jump lever moving the jump motor right/left. (Fig.3) [『refer to “ 4-5.Needle bar reciprocator” 』 on page 41] (2) After adjusting, locate the jump motor at its highest position and tighten two setting screws.
  • Page 84 FIG.3 -34-...
  • Page 85 3.ADJUSTMENT 3-8. Tension of drive belts A & C X cover ［Inspection］ Base cover rear L (1) Remove two setting screws (a) and Base cover front L then remove the table set. (Fig.1) (2) Remove four each set screws (b) and then remove base cover rear R and L.
  • Page 86 FIG.4 -31-...
  • Page 87 3.ADJUSTMETN specified, loosen two set screws (h) 3-9. Tension of deceleration belts and nut B, then turn set screw (ｉ) in B, D, & E the direction of the arrow. After adjustment, tighten setting [Inspection] screws (h) and nut B. (Fig.4) Note: Check the tension, after tighting (1) Loosen two set screws (a) and screws (d),(f) and (h).
  • Page 88 FIG.4 -33-...
  • Page 89 3.ADJUSTMENT 3-10. Limit sensor [Inspection] (1) Loosen two setting screws (a) remove the table set. (Fig.1) (2) Remove four set screws (e) and then base cover rear L. (Fig 1) X cover Motor cover (3) Remove two setting screws (c) and Base c over the then base cover rearL.
  • Page 90 FIG.2 -35-...
  • Page 91 3.ADJUSTMENT ［Adjustment］ (1) If the X distance differs from that specified, loosen two set screws (a) provided under the belt. Move the Sensor bracket sensor bracket specified position and tighten set screw (a). (Fig.1) (2) If the adjustment is not successful after step (1), loosen two setting screws (b) and move the slit.
  • Page 92 3.ADJUSTMENT 3-11. Thread sensor ［Inspection］ Rotary disk Slit plate (1) Remove the tension base cover. (2) When pulling the upper thread by Rotary hand, the rotary tension disk and tension disk rotary disk slit plate should turn smoothly. (Fig.1) (3) The rotary disk slit plate should be located at the position where the distance A between the center of the disk and the center of the sensor is...
  • Page 93 ＦＩＧ.2 Sensor arm ＦＩＧ.3 -38-...
  • Page 94 3.ADJUSTMENT 3-12. Power box ［Inspection］ (1) Turn power on and connect the circuit tester as shown in Fig.1. Check that the voltage across ① and ⑦ is 5.0～ 5.2V. (Fig.1) (2) Short ⑧ to ⑨ and turn power on. Connect the circuit tester as shown in Fig.2 and check that the voltage across ⑤...
  • Page 95 FIG.3 Power supply board FIG.4 -40-...
  • Page 96 4. REPLACEMENT OF MAIN COMPONENTS (a). (Fig.1) REPLACEMENT MAIN 4-1. Rotary hook [Removal] (1) Remove the table set. (2) Bring the needle bar to the top dead center, and remove the needle. (3) Remove two set screws (a), and remove the needle plate. (Fig.1) (4) Take out the bobbin case.
  • Page 97 FIG.3 FIG.4 Hook support 0.2mm or less hook support 0.5 to 0.8mm -37-...
  • Page 98 4. REPLACEMENT OF MAIN COMPONENTS 4-2. Thread cutter ［Removal］ (1) Remove the table set. Screwdriver (2) Remove two setting screws (a) detach the needle plate. (Fig.1) (3) Remove two set screws (b) and detach the thread cutter. (Fig.1) FIG.1 ［Installation］ Slightly pressing the thread cutter, set it in parallel with the needle plate bracket (A=B), and fix it in that position with two...
  • Page 99 4. REPLACEMENT OF MAIN COMPONENTS 4-3. Thread catcher ［Removal］ (1) Remove the table set. (2) Remove two setting screws (a) and detach the needle plate. (Fig.1) (3) Remove set screw (b) and detach the thread catcher. (Fig.1) ［Installation］ FIG.1 (1) Put hole B of the thread catcher through pin A of the thread catcher drive arm.
  • Page 100 FIG.4 -40-...

  • Page 101: Needle Bar

    4. REPLACEMENT OF MAIN COMPONENTS 4-4. Needle bar ［Remove］ Upper cover (1) Remove two setting screws (a) and the upper cover. (Fig.1) (2) Remove set screw (b) and the under cover. (Fig.1) (3) Remove two each setting screws (c), then remove the change cover and the relay circuit board cover.
  • Page 102 the needle bar height from the surface of the needle bar bracket to the lower FIG.3 end of the needle bar at 15.4±0.03 mm, then tighten the setting screw (d) in the right direction. (Figs.1, 2) Needle bar holder spring (7) Adjust the distance from the lower Washer end of the top dead center stopper to...
  • Page 103 FIG.2 Needle bar Top dead center stopper needle bar connecting stud FIG.3 -43-...
  • Page 104 4. REPLACEMENT OF MAIN COPONENTS 4-5. Needle bar reciprocator ［Remove］ Needle case Upper cover (1) Remove two setting screws (a) and the upper cover. (Fig.1) (2) Remove set screw (b) and the under cover. (Fig.1) (3) Remove two setting screws and the Under cover face plate.
  • Page 105 FIG.5 -45-...
  • Page 106 4. REPLACEMENT OF MAIN COMPONENTS under cover. (Fig.4) ［Installation］ (1) Insert A of needle bar reciprocator into the connecting rod and also the needle bar drive shaft from the top of the arm. Install the felt, needle bar reciprocator, felt B and bearing case collar in that order. Needle bar drive shaft (Fig.1)

  • Page 107: Thread Stand Plate, Bobbin Winder Base And Rear Cover. (Fig

    4. REPLACEMENT OF MAIN COMPONENTS 4-6. Thread change motor ［Removal］ Change cover Relay circuit (1) Remove two each setting screws (a) board cover and remove the change cover and relay circuit board cover. (Fig.1) (2) Remove each set screw (b) and remove the thread stand plate, bobbin winder base and rear cover.
  • Page 108 FIG.4 4. REPLACEMENT OF MAIN COMPONENTS 4-7. Power supply board ［Removal］ Case cover (1) Remove eight setting screws (a) and then the case cover (Fig.1). (2) Remove the connector CN3 and the cords connected to the circuit board. (Fig.2) (3) Remove four setting screws (b) and remove the power supply board.
  • Page 109 4. REPLACEMENT OF MAIN COMPONENTS 4-8. Power circuit board FIG.2 ［Removal］ (1) Remove two setting screws (a) and the table set. (Fig.1) (2) Loosen four setting screws (b) and the rear cover. (Fig.2) (3) Remove each four set screws (c) and the base cover rear R.
  • Page 110 Base cover rear R Table set FIG.1 FIG.4 Rear cover FIG.2 Case cover upper FIG.3 Power circuit board -50-...
  • Page 111 Printed in Japan 2002.8...

Table of Contents