Page 5 - MECHANICAL CHART
Page 8 - Pattern generator control block diagram
- 6 - 5. MAIN MOTOR CONTROL SYSTEM The main motor must operate at a constant speed regardless of load fluctuations, temperature fluctuations, orother changes in operating conditions. The main motor is therefore driven by means of PW M (Pulse W idthModulation) control. 6. PATTERN GENERATOR This embro...
Page 9 - OTHER ELECTRONIC COMPONENT FUNCTIONS; and shutter installed on the upper shaft.
- 7 - 7. OTHER ELECTRONIC COMPONENT FUNCTIONS Start/stop switch ............................... Used to start and stop machine operation. W hen starting, the embroidery machine operates at low speed as long as the switch is pressed. The needwill stop in the up position if pressed immediately after t...
Page 10 - DISASSEMBLY AND REASSEMBLY PROCEDURES FOR EXTERNAL
- 8 - 1. DISASSEMBLY AND REASSEMBLY PROCEDURES FOR EXTERNAL PARTS AND MAJOR COMPONENTS ........................................................... 9 2. SECURING THE LEADS................................................................................ 12
Page 11 - Remove the main cover to the left side.
- 9 - 1. DISASSEMBLY AND REASSEMBLY PROCEDURES FOR EXTERNAL PARTS AND MAJOR COMPONENTS 1. Raise the presser foot lever, remove the screw, and then remove the face plate from the left side. 2. Remove the two screws of the needle plate and then lift out the needle plate. 3. Loosen the screw of the X c...
Page 14 - SECURING THE LEADS
- 12 - 2. SECURING THE LEADS Please note the following.1. Be sure the LCD module leads are not pinched by the handle when passed through the shutter cover andthe handle is lifted. 2. The sew light leads from the power supply PC board extend to the front from the right side of the main PCboard amount...
Page 16 - TEST MODE SETTING METHOD; STANDARD; Adjustment item
- 14 - 1. TEST MODE SETTING METHOD STANDARD To enter the test mode, press and hold down both the left and right sides of the CHARACTER PATTERNS buttonwhile simultaneously turning on the power switch (Fig. 1).The test mode numbers will be displayed in the touch panel (Fig. 2).Select the desired test ...
Page 17 - TENSION OF MOTOR DRIVE BELT AND ROTARY HOOK SHAFT BELT; Loosen the two screws of the motor holder.
- 15 - 2. TENSION OF MOTOR DRIVE BELT AND ROTARY HOOK SHAFT BELT STANDARD Motor belt tension: The belt should move in by 5 - 7 mm when a force of approximately 2 N (200 g) is appliedmidway between the drive pulley and motor shaft. Rotary hook shaft belt tension: The belt should move in by 6 - 8mm wh...
Page 18 - POSITION OF SENSOR SHUTTER; Turn the hand wheel to raise the needle bar to its highest position.
- 16 - 3. POSITION OF SENSOR SHUTTER STANDARD When the needle bar is at its highest position, the rotary shutter should be positioned so that the screw is facingtoward the front of the machine. ADJUSTMENT 1. Turn the hand wheel to raise the needle bar to its highest position. 2. Loosen the screw of ...
Page 19 - ADJUSTMENT OF NEEDLE DROP POINT; Loosen the screw and the set screw of the presser unit.
- 17 - 4. ADJUSTMENT OF NEEDLE DROP POINT STANDARD The needle should enter 0.9 mm inward from the left end of the needle hole in the needle plate when the handwheel is turned. ADJUSTMENT 1. Turn the hand wheel by hand and observe the position of the needle in the needle hole. 2. Loosen the screw and...
Page 20 - CLEARANCE BETWEEN NEEDLE AND ROTARY HOOK POINT AND LOOP LIFT; Loosen the two set screws of the rotary hook pulley.
- 18 - 5. CLEARANCE BETWEEN NEEDLE AND ROTARY HOOK POINT AND LOOP LIFT STANDARD When the needle is raised 2.2 - 2.6 mm from its lowest position, the rotary hook point should be at the side of theneedle. The gap between the needle (75/11) and rotary hook point at this time should be less than 0.1 mm ...
Page 21 - HEIGHT OF NEEDLE BAR; Loosen the set screw of the needle bar clamp.
- 19 - 6. HEIGHT OF NEEDLE BAR STANDARD The distance from the top edge of the needle eye to the bottom of the rotary hook point should be 1.6 - 2.0 mmwhen the rotary hook point is at the side of the needle by turning the hand wheel. ADJUSTMENT 1. Turn the hand wheel so that the rotary hook point is ...
Page 22 - ADJUSTMENT OF THREAD TAKE-UP SPRING; Loosen the screw of the thread take-up spring cover.
- 20 - 7. ADJUSTMENT OF THREAD TAKE-UP SPRING (ADJUSTMENT OF THREAD BREAKAGE SHUTTER) STANDARD When the thread take-up spring stroke is 8 - 9 mm and test mode 26 is selected, the buzzer should sound whenthe thread take-up spring is raised 4 - 5 mm from the down position. ADJUSTMENT 1. Select test mo...
Page 23 - ADJUSTMENT OF BOBBIN WINDING
- 21 - 8. ADJUSTMENT OF BOBBIN WINDING (ADJUSTMENT OF BOBBIN WINDER SWITCH) STANDARD The thread should be wound parallel to the bobbin core to 85% - 90% of the outside diameter of the bobbin.The gap between the bobbin winder switch and the bobbin winder spindle base should be 0.5 - 1.0 mm. ADJUSTMEN...
Page 24 - POSITION OF INNER ROTARY HOOK BRACKET; Loosen the screw of the inner rotary hook bracket.
- 22 - 9. POSITION OF INNER ROTARY HOOK BRACKET STANDARD When the inner rotary hook bracket and the rotary hook meet, the spring of the inner rotary hook bracket and theinner rotary hook should overlap each other by 1.9 - 2.1 mm. ADJUSTMENT 1. Loosen the screw of the inner rotary hook bracket. 2. Ad...
Page 25 - ADJUSTMENT OF INNER ROTARY HOOK TENSION
- 23 - 10. ADJUSTMENT OF INNER ROTARY HOOK TENSION STANDARD The inner rotary hook tension should be 0.12 - 0.14 N (12 - 14 g) when a #90 polyester thread is pulled gentlyusing a tension gauge. ADJUSTMENT 1. Thread a #90 polyester thread normally to the inner rotary hook and then pull the thread gent...
Page 26 - ADJUSTMENT OF THREAD TENSION DIAL
- 24 - 11. ADJUSTMENT OF THREAD TENSION DIAL STANDARD When the tension dial is set to [5] and a #60 polyester thread held in the tension disc is pulled gently using atension gauge, the thread tension should be 0.23 - 0.26 N (23 - 26 g). ADJUSTMENT 1. Set the tension dial to [5]. 2. Raise the presser...
Page 27 - POSITION OF TENSION RELEASE SOLENOID; Lower the presser foot lever.
- 25 - 12. POSITION OF TENSION RELEASE SOLENOID STANDARD When the tension release solenoid is off, the gap between tension release plates A and B should be 0 - 0.5 mm,and the gap between tension release plate A and the tension release solenoid shaft should be 0 mm. ADJUSTMENT 1. Lower the presser fo...
Page 28 - NEEDLE THREADER; USING THE NEEDLE THREADER; Do not turn the hand wheel when using the needle threader.
- 26 - 13. NEEDLE THREADER USING THE NEEDLE THREADER The provided needle threader can be used with sewing machine needle sizes 75/11 to 100/16.A 75/11 needle is standard when embroidering, but a 90/14 needle is recommended when working with thickmaterial. OTHER PRECAUTIONS 1. Be sure the embroidery ...
Page 29 - NEEDLE THREADER (ADJUSTING THE NEEDLE THREADER); Loosen the two screws of the needle threader base.
- 27 - 14. NEEDLE THREADER (ADJUSTING THE NEEDLE THREADER) STANDARD • When the hook has passed through the hole of the needle (75/11 or 80/12), the hook should be in the middleof the hole with the same clearances between it and the left and right sides of the hole. • The clearance between the top of...
Page 30 - Remove the two hook mounting screws.; Caution
- 28 - 15. NEEDLE THREADER (REPLACING THE HOOK) • If the point of the hook becomes bent or broken, the hook must be replaced. STANDARD HOOK DIMENSIONS REPLACING THE HOOK 1. Remove the two hook mounting screws. 2. Replace the hook with a new one, and then tighten the two hook mounting screws. Caution...
Page 31 - Move the X carriage all the way to the left.
- 29 - 16. X - Y CARRIAGE (X TIMING BELT TENSION) STANDARD When the X carriage is positioned all the way to the left, the timing belt should give 2 - 4 mm when pressed with a1N (100 g) load midway of the belt. ADJUSTMENT 1. Move the X carriage all the way to the left. 2. Loosen the screw of the X te...
Page 32 - Move the Y carriage all the way to the front.
- 30 - 17. X - Y CARRIAGE (Y TIMING BELT TENSION) STANDARD When the Y carriage is positioned all the way to the front, the timing belt should give 2 - 4 mm when pressed witha 1 N (100 g) load from the X carriage body measurement hole. ADJUSTMENT 1. Move the Y carriage all the way to the front. 2. Lo...
Page 33 - Remove the stop ring holding the middle gear for X carriage drive.
- 31 - 18. X - Y CARRIAGE (DRIVE GEAR ADJUSTMENT) STANDARD The drive gears of the X carriage and Y carriage must be assembled with the reference holes in middle gears Aand B aligned. The gears must also be assembled to minimize the backlash between the drive motor gear andmiddle gears and enable the...
Page 34 - Loosen the three mounting screws of the X carriage.
- 32 - 19. X - Y CARRIAGE (X CARRIAGE POSITION) STANDARD The X carriage must be installed perpendicularly to the embroidery machine arm (upper shaft).Select the pre-programmed "frame pattern (square border)", enlarge the size to maximum, and then touch the"TRIAL" to move the embroide...
Page 35 - Loosen the mounting screw of the fixed blade holder.
- 33 - 20. ADJUSTMENT OF INNER ROTARY HOOK HOLDER AND LOWER THREAD GUIDE PLATE STANDARD • The inner rotary hook holder should be 27.3±0.2 mm above the rotary hook shaft frame. ADJUSTMENT 1. Loosen the mounting screw of the fixed blade holder. 2. Move the inner rotary hook holder so that it is 27.3±0...
Page 37 - ELECTRICAL SYSTEMS TROUBLESHOOTING; from the circuit board before taking the measurement.; CONDITION
- 35 - ELECTRICAL SYSTEMS TROUBLESHOOTING * When measuring resistance, always turn the power off and disconnect the connector to be measured from the circuit board before taking the measurement. * Refer to the figures for where to check. CONDITION PROBLEM SYMPTOMS COUNTERMEASURES 1. Power is ON but ...
Page 41 - Power supply PC board
- 39 - Power supply PC board For 120V AC models For 230 V AC models
