Fritz Gegauf Bernina artista 630 Service Manual
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Fritz Gegauf Bernina artista 630 Service Manual

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Service Manual
artista 630-640
Version 4
© Fritz Gegauf Ltd.
BERNINA sewing machines
8266 Steckborn
Switzerland
1
Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc

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Summary of Contents for Fritz Gegauf Bernina artista 630

  • Page 1 Service Manual artista 630-640 Version 4 © Fritz Gegauf Ltd. BERNINA sewing machines 8266 Steckborn Switzerland Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc...

  • Page 2: Chapter 1 General Information

    It is forbidden to copy, distribute, forward, publish or to reproduce them in any form without the express prior consent of Fritz Gegauf AG, BERNINA Steckborn, Switzerland. It is also forbidden to record this Service Manual and Instructions on any retrieval system, or to translate it, or parts of it, into any human or computer-related language of any kind, whether electronically, mechanically, magnetically, or otherwise.

  • Page 3: Warning: Dangerous Voltage Levels

    1.2 Warning: Dangerous voltage levels! Caution! The L-Print power circuitry, the S-Print CFL voltage supply and the mains cable all carry dangerous voltages. For your own safety do not touch the L-Print and S-Print until about 30 seconds after the main voltage has been switched off.

  • Page 4: Table Of Contents

    Chapter 2 Description of technical details 5.6 Presser foot fixation ......... 46 and electronics ...........9 5.7 Presser foot height........47 2.1 BERNINA artista 630/640 technical 5.8 Darning foot height ........47 specifications............9 5.9 Straight stitch needle position (needle 2.2 Cleaning ...........10 distribution) ............
  • Page 5 1b Sewing/embroidery computer soft- and 4h Calibrating the SSU (Start/stop unit): ... 86 firmware data: ..........71 4i Standard SSU speed:......86 1c Sewing/embroidery computer operating 4j Automatic start/stop: ......87 time data ............71 4k Winder motor: ........87 1d Sewing/embroidery computer stitch 4l Basting magnet: artista 640....

  • Page 6: Note On Electrostatic Discharge (Esd)

    1.4 Note on Electrostatic Discharge (ESD) Electrostatic charges are caused by: • a person's walking (influence) over synthetic tilled or carpeted floor • friction between and separation of two insulating materials (triboelectricity) If this static electricity discharges through electronic components, these may be partially or irreparably damaged.

  • Page 7: Tools And Gauges

    1.5 Tools and gauges Required tools and gauges (commercially available, not available from BERNINA): Multimeter, IC- Extraction tool and TORX screw driver sizes: No. 6, 8, 9, 10, 12, 15, 20, and 25. Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc...
  • Page 8 Part number Description Part number Description 398 083 030 Circlip mounting tool 031 563.50.00 Eccentric key head frame 398 112 030 Spring mounting tool 007 993.50.00 Angular key Torx 8 398 097 030 Rectifying tool bobbin case 030 883.50.00 Distance gauge for auto spring threader 001 361.70.00...

  • Page 9: Chapter 2 Description Of Technical Details And Electronics

    Chapter 2 Description of technical details and electronics 2.1 BERNINA artista 630/640 technical specifications Features artista 630 artista 640 Max. stitch length forward in mm....5 ..........5 Increment in mm..........0,15 .........0,15 Max. stitch length reverse in mm....5 ..........5 Stitch width in mm .........

  • Page 10: Cleaning

    Features artista 630 artista 640 Screen backlighting ........yes/white .........yes/white Direct stitch/function selection ....... yes/touch screen.....yes/touch screen Stitch width bar display........yes ..........yes Stitch length bar display ........ yes ..........yes Integrated service program......yes ..........yes Drive/power unit Universal power PCB (L-Print), 100-240 Volt yes ..........yes Power max.............

  • Page 11: Block Diagram

    2.3 Block diagram The electronics of the BERNINA artista 630/640 are primarily accommodated in three main modules (PCBs) – the L-Print (power PCB), the P-Print (positioning PCB) and the S-Print (control via micro- processor). Winder Buttonhole Presser Foot Winder Motor...

  • Page 12: Pcbs, Plugs And Cables

    2.4 PCBs, plugs and cables artista 640 positioning PCB 2 Pole black = Presser-foot position micro switch 4 Pole white = Stitch width stepping motor 4 Pole Red = BSR sensor 4 Pole yellow = Upper thread tension motor 4 Pole white = Buttonhole sensor 3 Pole red = Presser foot pressure control...
  • Page 13 artista 630 positioning PCB 2 Pole black = Presser-foot position micro switch 4 Pole white = Stitch width stepping motor 4 Pole Red = BSR sensor 4 Pole white = Buttonhole 3 Pole red = Presser foot sensor pressure control 4 Pole yellow = Winder motor 30 Pole white = S-Print 4 Pole blue = Stitch...
  • Page 14 P-Print (artista 630 & 640) reverse side Sensors L-Print 8 pole white S-Print 7 pole Ret-Print L-Print Upper thread sensor Note: Never connect or disconnect the connecting cables when the machine is powered! Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc...
  • Page 15 S-Print Caution! High voltage ! Ribbon cable function What to Test What to adjust Desired status Electrical resistance of cable Disconnect mains plug, remove covers and unplug cables from both printed circuits Visual check Check cables for damage, short circuits, and line disconnections Check plug and socket for damage, bent or loose contacts Electronic measurement by...

  • Page 16: General Functions Of The Pcbs

    2.5 General functions of the PCBs The microcomputer on the S-Print receives an analogue signal from the foot control which is converted into a digital signal and reported as a nominal value. The motor r.p.m is adjusted to the required value by comparison of the predetermined and actual values.
  • Page 17 Universal L-Print (power) The power PCB (L-Print) is installed in the cover at the back of the sewing machine. The circuit components of the L-Print producethe following direct current voltages: 5 V/DC for the logics on the S-Print 12 V/DC for the sewing light 30 V/DC for the main motor, winder...

  • Page 18: Chapter 3 Functional Check And Diagnostic Instructions

    Chapter 3 Functional check and diagnostic instructions 3.1 Functional check A correct functional check must be carried out in order to make an error diagnosis. 1) Visual check: Note machine’s operating hours, firmware Spool holder version and balance values in service program. Thread guiding parts Needle in general, and needle position 3) Mechanical checks:...

  • Page 19: Sewing-Off (A-640 Must Be Sewn-Off With The Head Cover Fitted (Light Will Affect The Threader Sensor)

    Saving the data before carrying out any servicing or repair work Customer and machine data must be recorded on a BERNINA USB data stick before starting servicing or repair work. This is to avoid loss of data when replacing PCBs or updating the firmware, and for use when comparing with the factory settings.

  • Page 20: Chapter 4 Replacing Assemblies

    Chapter 4 Replacing Assemblies 4.1 Removing covers Before making adjustments, the covers must be removed in the following order: Head cover: 1. Remove screw (5). 2. Remove head cover. Attention! The a-640 must have the head cover refitted when sewing-off. Rear cover: 1.

  • Page 21: Thread Pre-Tensioner

    Front cover: 1. Remove hook cover. 2. Remove screws (8) (5 screws). 3. Feed-dog drop button must be in sewing position. 4. Turn hand wheel until screw (8a) is accessible (hook drive crank at rear stop). 5. Lift cover over upper thread tension adjusting disc and pull out. Disconnect connectors (9-12).

  • Page 22: Vertical Spool Pin

    4.3 Vertical spool pin Disassembly: 1. Remove rear cover. 2. Remove L-Print cover (see p. 27). 3. Push spool pin (125) to the back. 4. Pinch clip (126) and pull spool pin (125) out to the right. Replace. Important: Don't lose spring (127) and ball (128)! Assembly:...

  • Page 23: Carrying Handle

    4.5 Carrying handle Disassembly: 1. Remove rear cover. 2. Remove spool pin (130) see p. 21. 3. Push pin (132) out to the left and remove. 4. Carefully prise lock (133) apart using a screwdriver. Push pin (134) out to the right and remove.

  • Page 24: Magnifying-Glass Holder And Thread Cutter24

    4.6 Magnifying-glass holder and thread cutter Disassembly: 1. Remove head cover. 2. Pinch clip (136) and pull magnifying-glass holder (137) downwards and out. Replace. 3. Pinch clip (138) and pull thread cutter (139) downwards and out. Replace. Assembly: 1. Move thread cutter (139) upwards in the guide until clip (138) engages. 2.

  • Page 25: S-Print, Keypads, Front Panel, Ret-Print

    4.7 S-Print, keypads, front panel, RET-Print, touch screen, display and side cover (plugs) Disassembly: 1. Remove covers. 2. Pull adjusting button off speed regulator. 3. Remove screw (17). 4. Press clip (19) down and remove side cover (20) to the left. 5.
  • Page 26 Markings must match! Assembly: S-Print, keypad, front panel, RET-Print, touch screen, LCD and side cover (plugs) 1. Slide front panel (4) into guides until front panel clips (3) engage. 2. Insert touch screen into opening – check for dirt before. 3.

  • Page 27: P-Print

    4.8 P-Print Disassembly: 1. Remove covers. 2. Disconnect plugs (141-148). 3. Remove screws (140). 4. Remove P-Print (149) and replace. Assembly: 1. Insert P-Print (149). 2. Refit screws (140). 3. Required lateral position of the P-Print (can be seen in the PCB's cut-out) => disc must lie centred in the light barrier.

  • Page 28: L-Print

    4.9 L-Print Disassembly: 1. Remove rear cover. 2. Remove screws (18). 3. Remove L-Print cover (103). 4. Check the primary (157) F2 (3.15A 250V) and secondary (153) F3 (4A - 250V) fuses. Replace if necessary. 5. Disengage switch (156) and socket (155). 6.

  • Page 29: Cfl

    4.10 CFL Disassembly: 1. Remove covers. 2. Remove screw (159). 3. Disengage CFL (160) from both fastening clips (168). Replace. Note: The presser foot bar must be down! Do not bend CFL tube! Assembly: 1. Refit CFL light (160). 2. Place cable (157) into guide (158). Important: Be sure not to squash the cables.
  • Page 30 Assembly: 1. Refit micro switch (165). Fitting position => the bores of the switch must be placed accurately to the lugs in the head frame. If the switch is at an angle when the screw is tightened, the switch may be damaged. 2.

  • Page 31: Buttonhole Sensor Pcb

    4.12 Buttonhole sensor PCB Disassembly: 1. Remove covers. 2. Remove CFL (7), (p. 28). 3. Remove thread tensioner (p. 40/41). Carefully lift buttonhole sensor (17) using a screwdriver on the clip of the presser foot bar guide bearing. 5. Turn sensor to front and pull out. 6.

  • Page 32: Stitch Width Stepping Motor

    4.14 Stitch width stepping motor Disassembly: 1. Remove covers. 2. Loosen screws (26a). 3. Remove adjusting wheel lock (161). 4. Remove carefully the adjusting wheel (162) so that the spring loaded pressure lever remains in place. 5. Remove pinion (26). 6.

  • Page 33: Stepping Motor, Stitch Length And Crankshaft

    4.15 Stepping motor, stitch length and crankshaft Disassembly: 1. Remove covers. 2. Remove balance shaft (28) including screw (29). 3. De-hook tension springs (30-34) and remove P-Print plug (146) (p. 26). 4. Remove both securing screws (35) of the motor bracket (36). 5.
  • Page 34 Assembly: 1. Fit new stepping motor and fasten with the two securing screws. 2. Power stepping motor: First connect stepping motor to P-Print then S-Print to power unit, only then connect mains cable to power supply. Select pinning positions in service program (SP test 4e, p. 83) 3.

  • Page 35: Presser Foot Pressure Sensor

    4.16 Presser foot pressure sensor Disassembly 1. Remove covers. 2. Remove adjusting wheel lock (161). 3. Remove carefully the adjusting wheel (162) so that the spring loaded pressure lever remains in place. 4. Remove metal guide (164). 5. Remove plug (143) from P-print (149) and remove cable (163) from cable guide.

  • Page 36: Base Shaft

    4.18 Base shaft Disassembly: 1. Remove covers. 2. De-hook tension springs (30-34). 3. Remove feed-dog drop unit (43) including securing screws (44). 4. Remove both bushing supports (45). 5. Loosen screw (46) and belt tensioner (47). Retighten screw (46). 6. Remove securing screws (49) and swing shaft bearing (49) down.
  • Page 37 Assembly: 1. Pin needle drive balance piece and hook drive crank – artista 630 requires removal of motor in addition to this. 2. Slide new base shaft in pinning position and in mesh with the hook drive crank gear. Caution! Edge (51) at pinning position (50) must be to the front (see picture 2 on page 49).

  • Page 38: Artista 630 Hook Race Ring

    4.19 artista 630 hook race ring Disassembly: 1. Remove covers. 2. Remove stitch plate including stitch plate frame. 3. Remove securing screws (52) and hook race cover (51). 4. Remove screw (53) and hook drive (53a). 5. Remove the 3 screws (55) and hook race (54).

  • Page 39: Artista 640 Stitch Plate Holder

    4.20 artista 640 stitch plate holder Disassembly: 1. Remove covers. 2. Remove rotary hook (see p. 39). 3. Loosen screws (13) so that the hinge pin can be slided out to the left. 4. Remove the 3 screws (12) and stitch plate holder. Assembly: 1.

  • Page 40: Rotary Hook (Rh), Cutting Blade And Hook Drive Belt In Artista 640

    4.21 Rotary hook (RH), cutting blade and hook drive belt in artista 640 Disassembly: 1. Remove back cover. 2. Remove stitch plate. 3. Loosen screw (2) and bobbin case retainer (1). 4. Remove belt tension screw (3). 5. Remove tensioner, disassemble, then clean and oil idler pulley shaft.

  • Page 41: Drive Belt (Synchronization Of Main And Base Shaft)

    4.22 Drive belt (synchronization of main and base shaft) Disassembly 1. Remove covers. 2. Loosen the two motor bracket screws (25) and pull drive belt off hand wheel. 3. Remove screw (46) and belt tensioner (remove tensioner, clean and oil idler pulley shaft). 4.

  • Page 42: Artista 640 Upper Thread Tension

    4.24 artista 640 upper thread tension Disassembly: 1. Remove covers. 2. Disconnect thread clamp magnet (22) 3. Remove link clip (20). 4. Remove screw (21). 5. Remove the two securing screws (58). 6. Remove thread tension unit. Assembly: 1. Fit new thread tension unit and tighten securing screws (58) and (21).

  • Page 43: Thread Take-Up Lever, Thread Take-Up Lever Crank, Needle Bar And Link Piece

    4.25 Thread take-up lever, thread take-up lever crank, needle bar and link piece Disassembly: 1. Remove covers. 2. Remove CFL light (p. 28). 3. Remove upper thread tension unit (p.40-41). 4. Loosen securing screw (61) and remove angular adjusting piece (60). 5.

  • Page 44: Chapter 5 Adjustments

    Chapter 5 Adjustments Important: To enable the work described to be performed correctly, the sewing / embroidery computer must be in good mechanical and electrical condition (running smoothly, properly lubricated and all leads connected)! When adjustments are carried out in the correct order, the sewing / embroidery computer will function without a problem.

  • Page 45: Artista 640 Hook Drive Belt Tension

    5.3 artista 640 hook drive belt tension • The belt is automatically tensioned by the belt tensioner and tension spring. • Slightly loosen screw (22) of the idler pulley (23). • Turn handwheel forward and backward. • Retighten screw (22) 5.4 Bobbin winder Standard: •...

  • Page 46: Position Of The Head Frame Plate

    5.5 Position of the head frame plate Standard: • Presser foot must be in the center of the stitch plate. • A size 100 needle must be in the center of the stitch hole in the needle plate. Correction: • Attach presser foot no.

  • Page 47: Presser Foot Height

    5.7 Presser foot height Standard: • Drop feed-dog. Attach presser foot no. 1 • Raise presser foot lifter lever. • Use 7.5mm presser-foot height gauge (86) to check height. Correction • Remove adjusting wheel lock (161). • Remove carefully the adjusting wheel (162) so that the spring loaded pressure lever remains in place.

  • Page 48: Straight Stitch Needle Position (Needle Distribution)

    5.9 Straight stitch needle position (needle distribution) Standard: • In service program basic setting, select test 4e (p. 83). • Stitch width stepping motor must be in pinning position (72a). If necessary, adjust this first. • Switch machine off ("0"). •...

  • Page 49: Thread Guide Plate Plate Adjustment On Artista 630

    5.11 Thread guide plate plate adjustment on Thread positioning plate artista 630 Standard: the thread guide plate must lie at a distance of 0.3mm to Thread guide plate 0.5mm from right needle penetration point, and at a distance of 0.7mm from hook race ring. The finger guide of the thread positioning plate must lie flush against hook race ring.

  • Page 50: Bobbin Case Retainer Position On Artista 640

    5.14 Bobbin case retainer position on artista 640 Picture 1 • Proper adjustment of the bobbin case retainer is crucial for the correct functioning of the thread cutter and (Picture 1) the stitch formation of the thread. • Therefore it is essential to check the individual zigzag stitches and the thread cutter for proper functioning on replacing the bobbin case retainer or the hook.

  • Page 51: Artista 630 Cb Hook, Synchronization, Feed And Needle Drive

    5.15 artista 630 CB hook, synchronization, feed and needle drive Standard: Remove covers. Use pinning tool 030 349.70.00 to pin needle drive balance piece and tool 007 937.50.00 to pin base shaft. The hook drive crank must be able to be pinned in this position. Base shaft pinning position.
  • Page 52 correction: Pinning position of base shaft and needle drive balance piece. Correction: • Remove covers. • Loosen two screws (78a) on the drive belt flange (78). • Pin needle drive balance piece. • Rotate base shaft until it can be pinned. Base shaft Cylinder flute must face front.

  • Page 53: Artista 640 Rh Hook, Synchronization, Feed And Needle Drive

    5.16 artista 640 RH hook, synchronization, feed and needle drive Standard: Remove covers. Use pinning tool 030 349.70.00 to pin needle drive balance piece. Then use tool 007 937.50.00 to pin base shaft. The base shaft must be able to be pinned in this position. Base shaft pinning position.
  • Page 54 Correction: Needle/hook point fine-adjustment • Remove covers. • Remove stitch plate. • Loosen the two hook drive belt flange screws (20). • Pin stitch width stepping motor (21) (center needle position). • Pin needle drive balance piece (pinning tool 030349.70.00). •...

  • Page 55: Needle/Hook Distance

    5.17 Needle/hook distance Standard: • Remove stitch plate. Warning! This must be done, before loosen screw (93) • Insert needle (type 130/705 H TCN 80). • The lateral distance between needle and hook (in the scarf) should be 0.01 mm to 0.05 mm. Correction: •...

  • Page 56: Artista 630 Needle Height

    5.18 artista 630 needle height Standard: • Set needle to right needle position. • Set hook tip flush with right hand needle edge • needle on its upwards movement). • From a front view, the lower edge of the hook tip should be 0.2mm above the top edge of the needle eye.

  • Page 57: Threader

    5.20 Threader Standard: • Remove needle and attach the threader gauge (030883.50.00) in its place. • Set needle to upper dead centre. • Push threader downward until threader head turns in flush under the gauge. Correction: • Loosen screw (67) on the guide piece. •...

  • Page 58: Feed-Dog Height

    5.22 Feed-dog height Standard: • In the feed-dog's highest position, the peaks of the feed-dog teeth must be at least 0.05 mm higher at the front than at the back. • Feed-dog height (0.9-1.0mm). Example: • front 0.95 mm, back 0.90 mm •...

  • Page 59: Position Of Synchronizing Disc (Rough-Adjustment)

    5.23 Position of synchronizing disc (rough-adjustment) Attention: Don’t over tighten the screw of the composite synchronizing disc. Standard: • Mechanical check: • Pin needle drive balance piece. • The positioning disc screw (77a) should be in a horizontal position and point to the back (visible through rear opening in housing).
  • Page 60 Correction: • Loosen securing screw (38) of the clamping piece (39). • Turn crank (108) into pinning position and pin. • Pin balance adjustment cam (107). • Turn toothed segment and gear drive against stop (A) and hold firmly while tightening screw (38). First tooth pinion First tooth toothed segment parallel...

  • Page 61: Basic Presser Foot Lifter Setting (Free Hand System (Fhs))

    5.25 Basic presser foot lifter setting (Free Hand System (FHS)) Standard: • The end of the knee-activated lifter lever should be approx. 160mm / 6inch from the needle centre position (horizontally). Correction: • Fit lifter lever into bore (110). • Loosen screw (109).

  • Page 62: Thread Tension Release

    5.26 Thread tension release Standard: • Lower presser foot lifter lever (117). • The release lever (118) must not touch the pressure piece (119) – neither at 0 position of adjusting wheel nor at position 10. (With artista 640, turn the cam of the upper thread tension stepping motor from minimum to maximum).

  • Page 63: Basting And Long Stitch Device Artista 640

    5.27 Basting and long stitch device artista 640 Standard: • Checking the needle bar guide. • Disengage the needle bar manually. • Rotate left and right to check play and if clutch pin engages easily. Correction: • Remove basting magnet (remove screw (11)). •...

  • Page 64: Artista 630 Cb Hook Lower Thread Tension (Basic Setting)

    5.28 artista 630 CB hook lower thread tension (basic setting) Standard: • Use Mettler no. 60/2 Nm 43.1/2 white thread. • Use no. 001 538 70.00 gauge to adjust lower thread tension. The bobbin case is inserted into the weight gauge in exactly the same way as into the hook.

  • Page 65: Artista 630 Upper Thread Tension (Basic Setting)

    5.29 artista 630 upper thread tension (basic setting) Standard: • Use Mettler white thread (cotton Ne60/2 Nm 43.1/2) for testing. Thread machine up to and including thread take-up lever (incl. rear thread guide). • Turn adjusting wheel until the red bar mark is in line with the mark on the housing.

  • Page 66: Thread Regulator Spring

    5.31 Thread regulator spring Tension standard: • Thread an approx. 30cm long thread into thread regulator. • Attach the two thread ends to the BERNINA balance spring gauge (006 038 5000). (same as checking the top tension) • Slowly pull the gauge down. •...

  • Page 67: Chapter 6 Service Program

    Chapter 6 Service Program 6.1 Starting the test program Entering: • Switch machine off ("0"). • Keep Ret-button pressed, and switch machine on. • The sewing/embroidery computer moves the stepping motors to the "zero" position (brief motor noise). • The machine is now in the basic position for servicing - first level. Alternative access: •...
  • Page 68 Operating voltages functional test: • The voltages on the S-Print are displayed by means of LED under the service cover. • To access these, press the front of the cover at point (A) and swing the service cover (B) forward. 30 V 12 V FPAG...

  • Page 69: Virtual Keyboard

    6.2 Virtual keyboard • Tests a, b, f, h and i in menu 1, and test a in menu 6 require data entering. • Data can be entered using the four data entering fields in the virtual keyboard. The virtual keyboard data fields are: Data display field (to completely delete, press it) CLR field (<--)

  • Page 70: Menu 1 - Service Information

    6.3 Menu 1 – Service information • The tests are selected here by pressing the appropriate button. • Information on configuration, sewing/embroidery computer status and user and dealer data. • Data is displayed by the page with the page reference in green. •...

  • Page 71: Sewing/Embroidery Computer Soft- And Firmware Data

    1b Sewing/embroidery computer soft- and firmware data: What to test: • S-Print EAN code • L-Print EAN code Note: • EAN = European Article Number • The number must be checked and re-entered if deviating when replacing S- and L-Prints. •...

  • Page 72: Sewing/Embroidery Computer Stitch Counter Data

    1d Sewing/embroidery computer stitch counter data: What to test: • Stitch Working, = Total number of stitches • Stitch Sewing, = Total number of stitches sewn • Stitch Embroidery = Total number of stitches embroidered Note: • Total number of stitches of each category in the sewing/embroidery system. 1e BSR (BERNINA Stitch Regulator) data: What to test: •...

  • Page 73: Saving Of Customer Data

    Use the right scrolling arrow to go to the next page. Service and repair data entering. There are 5 entry fields available. • The sixth entry overwrites the first entry. • Maintained by…on = Entered by … on (date) Note: •...

  • Page 74: Log File

    1j Log file What to test: • External saving of internal processes on a BERNINA USB memory stick. Note: • If software problems occur, the read processes (log files) must be sent to the respective importer/distributor by email. 6.4 Menu 2 – screen and beeper •...

  • Page 75: Lcd (Screen)

    2b LCD (screen): What to test: • Use ’+’ and ’-’ keys or stitch width adjusting knob to adjust contrast. • Use ’+’ and ’-’ keys or stitch length adjusting knob to adjust brightness. • Press ’Reset’ to return to default. •...

  • Page 76: Speaker Test

    2e Speaker test: What to test: • Speaker test. • Press ‘Start Speaker Test’ to switch beep sound on and off. Repairing note: • If there is no beep sound, replace S-Print. 6.5 Menu 3 – Signals and sensors • The tests are selected here by pressing the appropriate button.

  • Page 77: Start/Stop Unit (Ssu) Slide Control

    3c Start/stop unit (SSU) slide control: What to test: • The position of the slide control is displayed on the bar. Repairing note: • If no signal occurs, replace the S-Print. 3d & 3d1 Foot control: What to test: • Activate foot control to display the foot control setting on the bar display.

  • Page 78: Presser Foot Pressure Sensor

    3f Presser foot pressure sensor: What to test: • The position of the presser foot pressure sensor is displayed in the bar. (Default value is 47) Repairing note: • Check the threader print connector for deformations. Replace if necessary. • Check the presser foot pressure cable for deformations, tears or breaks.

  • Page 79: Feed-Dog Drop Light Barrier

    3i Feed-dog drop light barrier: What to test: • Switching on the feed-dog drop activates the light barrier, and the bar display lights up in green. Repairing note: • Remove base plate. Check light barrier for dirt. Clean if necessary. •...

  • Page 80: Bernina Stitch Regulator (Bsr) Foot

    3l BERNINA Stitch Regulator (BSR) foot: What to test: • Attach BSR foot. Picture A • Press ’l’ icon (picture A) to start test. • Place fabric under the presser foot and move it in different directions. • The movements are then displayed in picture B. •...

  • Page 81: Positioning Pcb (P-Print)

    3n Positioning PCB (P-Print): What to test: • Set needle bar to lower dead center = 0°. • The bar display of the signals 3, 4 and 5 lights up in green. • Turn hand wheel and compare these positions and signals with the chart.

  • Page 82: Usb Host Interface

    3q USB host interface: What to test: • Use an USB cable and connect the host and the client plug and press the ‘q’ icon to start the test. • Test successful! appears if o.k. • Test failed! appears if an error occurred. Repairing note: •...

  • Page 83: Bsr Foot Interface

    3u BSR foot interface: What to test: • Attach BSR foot and press ‘u’ icon to start the test. • The bar is displayed in green if o.k. Repairing note: • Replace BSR foot. • Replace S-Print. 6.6 Menu 4 – Motor functions •...

  • Page 84: Stitch Width Stepping Motor

    4b Stitch width stepping motor: What to test: • Press icon to start and stop test. • The stitch width stepping motor moves back and forth, the needle bar to left and right. • Test done! appears. • Test failed! appears if an error occurred. •...

  • Page 85: Stitches Per Minute (Spm) Calibration

    4e Pinning positions of all stepping motors: What to test: • Press icon to start and stop test. • The stepping motors move into their zero positions (pinning positions). • Use 4mm pinning tool to check the pinning positions. • Test done! appears.

  • Page 86: Standard Spm (Stitches Per Minute) Speed

    4g Standard SPM (stitches per minute) speed: What to test: • Connect foot control and actuate. The main motor runs speed- dependant. The standard speed is displayed. Note: • Power in Watt is displayed in the left field. • The number of stitches per minute (SPM) is displayed in the right field.

  • Page 87: Automatic Start/Stop

    4j Automatic start/stop: What to test: • Press Start/Stop button. Machine runs at full speed. • The zigzag and honeycomb stitches are available. • Stitch length, stitch width and needle position can be changed. • The machine runs and stops for about 7.5 seconds respectively. 4k Winder motor: What to test: •...

  • Page 88: Thread Cutter Clamping Magnet: Artista 640

    4m Thread cutter clamping magnet: artista 640 What to test: • The thread cutter clamping magnet toggles on pressing icon 4m. • Press icon 4m again to end the test. • If o.k., Test done appears. • If failed, Test failed! appears. Repairing note: •...

  • Page 89: Menu 5 - Adjustments

    Step Position (degree) Motion Movement / Action 130° Run to Nearest Position Starting position 213° Run to Position Forward Turns forward 125° Run to Position Forward Turns forward 40° Run to Position Backward Turns backward 40° Set Thread Tension Thread tension activated 40°...

  • Page 90: Electronic Balance Calibration

    5b Electronic balance calibration: What to test: • Zero feed • Use a double-layered cotton piece for the sewing-off, place it under the presser foot and start machine. The fabric must not move now. What to adjust: • Use icons 1-5 to set zero feed to lowest forward and reverse feed. •...

  • Page 91: Mechanical Balance Fine-Adjusting

    5b Mechanical balance fine-adjusting: What to test: • The (stitch counter) darning program. • Thread machine, place two-layered sewing-off cotton under the presser foot and start machine. • The stitch formation must form a virtual straight top and bottom line. Picture 5 Repairing note: •...

  • Page 92: Buttonhole Calibration

    5c Buttonhole calibration: The adjusting filter is no longer needed! What to test: • Buttonhole calibration. • Attach automatic buttonhole foot 3A. Set feed-dog to sewing mode. • Lower presser foot. • To make the feed-dog move sufficiently, the needle bar must be set to max.

  • Page 93: Electronic Upper Thread Tension: Artista 640

    5f Electronic upper thread tension: artista 640 What to test: • Electronic default of upper thread tension. • The default value 85 + 8 g equals the value 0. What to adjust: • Use the stitch width knob and/or “+” and “-“ icons to adjust the default value.

  • Page 94: Bsr Foot Update

    5h BSR foot update: What to adjust: • Attach BSR foot. • Connect BERNINA USB data stick containing latest update file. • Press icon h to start updating process. • Follow the instructions on the screen. 5i Resetting artista 640 upper thread tension to default What to adjust: •...

  • Page 95: Menu 6 - Embroidery Module (Emb)

    6.8 Menu 6 – Embroidery module (EMB) • The tests are selected by pressing the appropriate button. • The EMB test menu contains information on the configuration and the state of the embroidery module. It also contains tests for the individual components. •...

  • Page 96: Free-Arm Adapter Sensor

    What to test: Technical information data entry. • Technical data can be entered here in this page, using the virtual keyboard. • The entered data give the technician information on already made improvements. Use the right scrolling arrow to go to the total hours and stitch count information. What to test: •...

  • Page 97: X-Axis Sensor

    6c X-axis sensor: What to test: • Attach embroidery module and hoop. • Press icon b. The bar appears in green after recognition of the sensor. Test Successful! appears. • Test failed! appears if an error occurred. Repairing note: • Replace EMB S-Print.

  • Page 98: X- And Y-Movement Of Stepping Motors

    6e X- and Y-movement of stepping motors: What to test: • Attach embroidery module. • Press icon e. The X- and Y-stepping motors move back and forth. • Press icon e again to stop the test. • Test successful appears if o.k. •...

  • Page 99: Hoop Reference Position

    6h Hoop reference position: What to test: • Hoop center reference point. • Attach embroidery module and hoop. • Place template (item 030 576.50.01 red) in hoop. • Press “check“ icon. EMB moves to reference point. • Use the arrow keys to correct/adjust the center position. •...
  • Page 100 Test design assessment Point/Area Desired status: Possible cause: The two stitching lines must be on top of Reference point not adjusted. each other. Speed too high, belt tension too weak/strong. B Circle Circle must close at point B. X- and Y-axis stiff-driving. Belt tension too weak/strong.

  • Page 101: Customer's Embroidery View

    6j Customer’s embroidery view: What to test: • Use test j to go to customer’s embroidery view. • Press Clear to return to service basic program. Chapter 7 Updating 7.1 Updating of sewing/embroidery computer Note: The artista models 630 and 640 do not have the same firmware (FW). FW files for 630 and 640 can, however, be stored on the same BERNINA USB data stick.

  • Page 102: Bsr Update

    Saved settings / personal data is missing. Connect BERNINA USB data stick containing the update data to sewing computer and try again. Update error message Updating of new application failed. Check data on USB data stick and try again. Try alternative access (p. 103). Update failed Note: In the event of error messages during updating, see also user manual on pages 106 and 107.

  • Page 103: Update - Alternative Access

    7.3 Update – alternative access Note: If the update can not be carried out in setup, or if the sewing/embroidery computer fails to reboot, an alternative access is provided. Loss of data: If the sewing/embroidery system fails to reboot (e.g. due to not recognizing the firmware), the data saved by the customer can not be stored any more.

  • Page 104: Chapter Lubrication Plan

    8. Chapter Lubrication Plan 8.1 Lubrication Plan artista 630 Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc...

  • Page 105: Lubrication Plan Artista 640 Supplementary To Artista 630

    8.2 Lubrication Plan artista 640 supplementary to artista 630 Service-Manual_artista_630_640_english_V4.01_032069_50_04.doc...

This manual is also suitable for:

Bernina artista 640

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