Baby Lock Crown Jewel BLCJ18 Service Manual
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Baby Lock Crown Jewel BLCJ18 Service Manual

Baby Lock Crown Jewel BLCJ18 Service Manual

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Summary of Contents for Baby Lock Crown Jewel BLCJ18

  • Page 1 Service Manual...

  • Page 3: Table Of Contents

    Useful Part Numbers ..............65 IMPORTANT: Part One of this service manual is for the Baby Lock Crown Jewel I and II machines. Part Two covers the changes in hardware and software made to the Baby Lock Crown Jewel III machines.

  • Page 4: About The Baby Lock Crown Jewel

    Similarly, this service conceived in the quilting industry. The Baby Lock manual has been written with an adjustment logic Crown Jewel quilting machine is a high quality...

  • Page 5: Part One

    General Specifications Part One of this service manual is for the first-generation and second-generation Baby Lock Crown Jewel machines. Part Two covers hardware and software features added to the Baby Lock Crown Jewel III machines. Sewing Opening Dimensions: (245 mm X 470 mm) 8.25”...

  • Page 6: Assembly Torque Specifications

    It is therefore advised that this torque specification not exceed 6 Nm. • Base plates • Handlebars 6. 6 mm Allen set screw, Class 8.8@ 4.5 Nm (Uses a 3 mm Allen tool) • Hand wheel Page 4 Baby Lock Crown Jewel Service Manual...

  • Page 7: Lubrication

    All the above in box w/ booklet Rep Lube Kit Box #1-#6 Kit QM49262 Lubricating Schedule The Baby Lock Crown Jewel lubricating schedule should be followed every year up to every two years to ensure top mechanical performance. www.babylock.com Page 5...
  • Page 8 After the lubrication of the hook, it is recommended that one momentarily sew on scrap material before resuming the sewing of the quilt. Failure to do so may result in oil stains on the quilt. Page 6 Baby Lock Crown Jewel Service Manual...
  • Page 9 Baby Lock Crown Jewel Lubrication - Continued #1 (Red) OY 68 One drop on the side of the needle and presser bars. One (orifice located a little drop on each bearing of the behind the top radius.) hopping foot (4 places)

  • Page 10: Section 1: General Observations Of Front Frame Cover, Mast And Hand Wheel

    Remove the front cover (see Section 2), loosen the hand-wheel set screw, position the hand wheel and re-tighten the set screw. (3 mm handle Allen) Figure 1.2 Page 8 Baby Lock Crown Jewel Service Manual...
  • Page 11 1. General Observation - Continued 3. Check/Inspect: Test the condition of the thread guides 1, 2, 3, thread stirrup 4, thread guide 5 and needle bar thread guide 6 for any abrasions, cuts, or electroplating blistering. Test each guide by flossing it with thread, left to right and front to back in all directions, checking for any sharp defects that may damage or cut the thread.
  • Page 12 Caution: The split bolt is hardened and if adjusted too much it may break. The top tension assembly will then needs to be replaced. (Top Tension Assembly Part #QM10198) Figure 1.10. Tension assembly split bolt Page 10 Baby Lock Crown Jewel Service Manual...

  • Page 13: Section 2: Removal Of

    2. Removal of the Front Cover Tools Required: 2 mm, 3 mm, 4 mm handle Allen, 4 mm L Allen, #3 flat screwdriver and #2 Phillips screwdriver. 1. Loosen set screw on top of cover (position A in Figure 2.1). Rotate the 3-hole thread guide to allow access to the frame screw (Figure 2.2), then re-snug the screw so the guide will not become misplaced.
  • Page 14 J15 on board. F: Right cable, red and black, position labeled Motor on board. (Note: The board may be labeled J16 or J17 due to a production error on the boards) Page 12 Baby Lock Crown Jewel Service Manual...
  • Page 15 2. Removal of the Front Cover - Continued 6. To remove power supply, loosen the 3 screws on the right side and remove the 3 screws on the left side (shown circled in orange in Figure 2.9). Slide the power supply to the left and unplug the bottom cable.
  • Page 16 Internal Wiring Reference Photos Figure 2.12 Cable Identification F: Motor driver board with motor power (top) G: Motor (center) B: Motor driver (bottom) Figure 2.13 Location of encoder disc and sensor (circled) Page 14 Baby Lock Crown Jewel Service Manual...
  • Page 17 P-pod Cable Reference Photos Figure 2.14 Figure 2.17 Important note: Two ground wires are fixed with a socket head cap screw and star washer (shown circled in Figure 2.15) for safety grounding. Figure 2.15 Important note: Insulator material must cover all metal on the back of the power supply for proper insulating purposes (see circled area in Figure 2.16).
  • Page 18 Do not remove the protected from moving parts on the left side. Printed Circuit Boards (PCBs) from the pods. Page 16 Baby Lock Crown Jewel Service Manual...
  • Page 19 2. Removal of the Front Cover - Continued 7. Remove the needle plate. (Figure 2.20) (#3 flat screwdriver) 8. Loosen both the front and rear base plates a couple turns to allow the front cover to be removed. (Figures 2 .21 and 2 .22) (Tools needed: 5 mm handle Allen wrench) Figure 2.20 9.

  • Page 20: Section 3: Securing Flats And Screws

    3. Checking and Securing Flats and Screws The Baby Lock Crown Jewel has been designed using flats and special screws to help prevent loop lift timing from slipping, except at the hook. (If the hook cannot slip then something has to break when something goes wrong. The hook is designed to be adjusted without removing the front cover.)
  • Page 21 The Baby Lock Crown Jewel utilizes long collars with two screws in line to help prevent the collar from tipping when tightened, causing variation of tightness or play, as the collar rotates 360º.

  • Page 22: Section 4: Axial Play Check And Adjustment

    There is no flat for the hook-shaft thrust collar. • Check for proper setting by rotating shaft through a few 360 rotations. Collar set screws Figure 4.3 Take out play here Figure 4.4 Page 20 Baby Lock Crown Jewel Service Manual...

  • Page 23: Section 5: Adjusting The Base Plate Feet And Rollers

    5. Adjusting the Base-Plate Feet and Rollers Tools required: (5 mm handle Allen) Check: 1. The base plate must be adjusted so that the rubber feet, or the wheels as applicable, will sit flat on a planed surface. Note: This is done on a precision surface plate at the factory during assembly.

  • Page 24: Section 6: Adjusting The Motor Drive/Timing Belt Tension

    6. Adjusting the Motor Drive/Timing Belt Tension The Baby Lock Crown Jewel machine utilizes a single Tools required: 4 mm handle Allen motor drive/timing belt system. Check: With the machine front cover removed. Check the belt tension for tautness by pressing it with the index finger (Figures 6.1–6.2).

  • Page 25: Section 7: Adjusting The Presser Bar Height/Presser Foot

    7. Adjusting the Presser Bar Height Tools required: 3 mm handle Allen, 0. 5 mm feeler gauge, 8 mm open end wrench Check: When the needle bar is in its lowest position, the sewing foot should be no higher than 0.5 mm above the needle plate as shown in Figure 7.3.
  • Page 26 7. Adjusting the Presser Bar Height - Continued Adjusting the Hopping Foot The Baby Lock Crown Jewel features the “KinetiQuilt” hopping mechanism, allowing the hopping foot to move (hop) up, down and dwell on the fabric when the needle is in the fabric.

  • Page 27: Section 8: Needle Position, Check, And Adjustment

    8. Needle Position, Check, & Adjustment The needle position adjustment is the most important of all adjustments in the machine. Needle position provides the foundation for which all other settings are made. Once the needle position has been completed, great care must be maintained to keep this setting.
  • Page 28 • Tighten screw D. Note: If the needle changes, repeat the process. • Repeat the process on the left side of the head frame. Note: If the needle changes, repeat the X-axis Access process. Holes Figure 8.4 X-axis access/adjustment holes Page 26 Baby Lock Crown Jewel Service Manual...

  • Page 29: Section 9: Adjustment Of The Loop Lift And Needle Distance

    9. Adjustment of the Loop Lift and Needle Distance Important Note: The timing and needle distance adjustment must be done with the front machine cover on . “Loop Lift” is a universal hook and timing term for all lock- stitch sewing machines. When the needle lifts a specified distance from the BDC (bottom dead center), the hook point is set to coincide with the needle as shown in (Figure 9.4.) This is the radial position of the hook called “Loop Lift”,...
  • Page 30 See important note above. • Adjust needle distance (and loop lift) as directed in the next section (beginning on page 29). Figure 9.7 Basket rotated 180 degrees down, facilitating needle distance adjustment Page 28 Baby Lock Crown Jewel Service Manual...
  • Page 31 9. Adjustment of the Loop Lift and Needle Distance – Continued Note: If needle height is not set roughly close first, it will not be possible to set needle distance correctly. If a correction is needed: If still in place from the check, remove the clamp. The basket must be rotated down in order to make setting the needle distance properly possible.
  • Page 32 (Figure 9.8) Important Note: If loop lift, needle distance and needle height are not adjusted accurately, the machine may skip stitches, shred thread or not sew. In other words, it will have issues. Page 30 Baby Lock Crown Jewel Service Manual...

  • Page 33: Section 10: Adjusting Needle Height

    10. Adjusting the Needle Height Tools required: (#3 Fillister screwdriver) Note: This adjustment must be completed with the front frame cover on. Important note: Shown with cover off for illustration purposes only! Check: The needle height must be set so that when viewed 1.0 mm from behind as shown, and with the hook point flush with the right side of the needle, the bottom of the hook point...
  • Page 34 Remove the front frame cover, reassemble the needle bar to the needle bar driver and readjust. Figure 10.4 Front cover off to illustrate the needle bar driver screw postion Page 32 Baby Lock Crown Jewel Service Manual...

  • Page 35: Section 11: Adjustment Of The Stop Finger

    11. Adjustment of the Stop-Finger Tools required: (2 .5 mm handle Allen) Check: The engagement of the stop-finger and throat of the bobbin case support basket must have a clearance of 0.8 mm to 1.0 mm (Figure 11.2). This clearance ensures that adequate space exists for thread escapement during the sewing process.

  • Page 36: Section 12: Adjusting The Needle Height With Cylinder Tool

    2. Rotate the cylinder tool so that the flat side is down. (Figure 12.3) 3. Bring the needle to the lowest point by rotating the hand wheel (Figure 12.4). Figure 12.3 Figure 12.4 Page 34 Baby Lock Crown Jewel Service Manual...

  • Page 37: Section 13: Electronic Adjustments And Indicators

    13. Electronic Adjustments and Indicators System Power Auxiliary Power The Baby Lock Crown Jewel operates at voltage levels between 100 and 240VAC, 50 or 60 Hz. This means it can be run in most countries as long as the appropriate power cord or adapter plug is used. If...

  • Page 38: Indications Of Speed/Needle Position Sensor

    One 24V DC power supply is mounted to each side switch (SW1) and pin 1 of either J2 or J3. A basic Ohm Page 36 Baby Lock Crown Jewel Service Manual...

  • Page 39: Power Supply "Chirping

    Power Supply “Chirping” A repeating “chirp” coming from the quilting machine may indicate a power supply that is shorting out or being overloaded. The power supplies are designed in a way that if there is a short or if the power draw is too extensive, it will shut itself down.

  • Page 40: Indications Of Speed/Needle Position Sensor Failure

    1. A message on the handle display indicates a “Needle Sense Failure.” i. If the sensor board must be adjusted, we recommend contacting Baby Lock first to verify that a. Make sure the Speed/Needle Sense cable is such an adjustment is necessary. If it is necessary, properly connected in the C-Pod.

  • Page 41: Led Identification

    LED Identification Control Pod Power LEDs Figure 13.5 Near the top of the Control Pod are two green LEDs (Figure 13.5). The control pod receives an input of +48V from the two power supplies and it converts this voltage Figure 13.4 LED Identification into two different voltage levels.

  • Page 42: Handlebar Communications Leds

    Possible Solutions • Try re-booting the Baby Lock Crown Jewel to see if the problem is corrected. • If not, then inspect the cable that connects the...
  • Page 43 For Version 1 Control Boards There are two fuses located on the P-Pod circuit board. (Figure 13.7) F2 is the fuse for the Baby Lock Crown Jewel and F1 is the fuse for the auxiliary power connector (the connector located just under the main power cord connector on the P-Pod).

  • Page 44: Part Two: Baby Lock Crown Jewel Iii

    Part 2: Baby Lock Crown Jewel III The Baby Lock Crown Jewel III had new software features, as well as some mechanical and electrical changes. This section of the service manual addresses these changes to aid technical personnel in understanding the differences and know how to service machines with these updates.
  • Page 45 • Baby Lock Crown Jewel now includes integrated Quick-Set Tension (with internal wiring) • The software code will be different than earlier machines. The C-Pod version will be 5.03 or later and the handlebar software version will be v. 5.01 or later. You can confirm the version on the System Information screen.

  • Page 46: Added Feature: Led Light Ring

    Ring. C-pod with LED light ring power connection (18): QM29747 (currently REVG, control board only PN QM21622/ TIVA) LED light ring circuit board (18/24): QM20441 LED Light Ring Cover (18): QM10147 Page 44 Baby Lock Crown Jewel Service Manual...

  • Page 47: Added Feature: Increased Speed

    (SPM) Feature Information: The Baby Lock Crown Jewel III has an encoder on the back end of the motor to aid with motor control and stitch regulation. A cable runs from the encoder to a new driver board on the drive train assembly bracket.
  • Page 48 Motor with shaft for encoder: QM21802 Encoder for motor: QM22417 Cable from motor encoder to motor driver board: QM22464 Motor Driver Board Encoder Motor driver board: QM21808 (pictured at right) Page 46 Baby Lock Crown Jewel Service Manual...

  • Page 49: Added Feature: Integrated Easy-Set Tension

    Added Feature: Integrated Easy-Set Tension Feature Information: The integrated Easy-Set Tension Assembly (Part Number QM59101), with tension setting information displayed on the front handlebars, replaced the regular tension assembly (Part Number QM10199). The machine casting did not require any changes to accommodate this assembly. However, the C-pod required a connection for the information from the Easy-set Tension assembly cable.
  • Page 50 Remove the following parts from the assembly: knob, detent washer, the cone spring, spring base and two tension discs. NOTE: The detent washer is placed with the detents toward the knob. 1. See important note above. Page 48 Baby Lock Crown Jewel Service Manual...
  • Page 51 2. Loosen the set screw under the Easy-Set Tension assembly on the front cover casting and pull the tension assembly out just far enough to loosen the set screw on the barrel so the center of the Cover Set assembly can be removed. . Screw 3.

  • Page 52: Added Feature: Single 48Vdc Power Supply

    Note the shoulder in the image at the right. Set the tension of the take-up spring as described in the Part One of the Baby Lock Crown Jewel Service Manual for the regular tension assembly. See page 11 if needed.
  • Page 53 Because there is now only one power supply, the cables required to power the machine have changed. The new power supply also has remote switching capability so the machine can be powered on and off from a switch on the front handlebars. The following parts are required: 48VDC power supply with remote capability, cable from power supply to power connection on the control pod, control pod with remote power connection, front handlebars with on/off switch.

  • Page 54: Added Feature: Front Handlebars With Remote On/Off Switch

    Added Feature: Front Handlebars with Remote On/Off Switch and Direct Connection for Micro Handles Feature information: The Baby Lock Crown Jewel III machine with remote on/off requires front handlebars with an on/off power switch. The front handlebars with an on/off power switch also have a direct connection for the optional micro handles.

  • Page 55: Added Feature: Low-Bobbin Estimator

    If Baby Lock Crown Jewel III handlebars are used on an Crown Jewel I or iI machines, they will not work. Similarly, if older handlebars are used on the Baby Lock Crown Jewel III, they will not work.

  • Page 56: Added Feature: Interchangeable Feet Mount

    It flashes 100 times per revolution of the hand wheel. What does 18VDC do? • 18VDC drives LED light ring for Baby Lock Crown Jewel • 18VDC drives the front handlebar lights • 18VDC drives signal to motor driver (motor speed control) What does 5VDC do? 5VDC does nearly everything else.
  • Page 57 To use the C-Pod LEDs to verify that the machine electronics are working: 1. If the front handlebars are not connected, be sure to replace the remote power cable to the C-pod with a QM 20204 jumper on the power supply. 2.

  • Page 58: The More Screen Options

    The More Screen Options Left-side options, top to bottom: Low Bobbin, Sound, Lighting, Language (English, French, German, Spanish) Right-side options, top to bottom: Timers, Calculator, System Info, Diagnostics Page 56 Baby Lock Crown Jewel Service Manual...

  • Page 59: Diagnostic Options

    Diagnostics Options To open the Diagnostics screen, select Diagnostics from the More screen. Left-side options, top to bottom: Motor, Needle, X Diagnostics Motion, Tension Right-side options, top to bottom: Speed , Keys, Y Motor Speed Motion Needle Keys X Motion Y Motion Tension Back...
  • Page 60 • Rotating the hand wheel does not cause the Hall Sensor LED on the motor driver board to flash • Replacing the motor resolves the problem (be sure all wires are properly placed in terminals) Page 58 Baby Lock Crown Jewel Service Manual...
  • Page 61 Needle Sensor Test This message appears when the machine is trying to position the needle, but the machine is going too slow or too fast. this can occur when a board is changed or the dynamics of the machine have changed. Running burn- in will usually correct this.
  • Page 62 Loosen the nut/bolt as needed just to the point that when you lift upwards on the encoder housing and ‚ let go, it springs nicely back into position on the track. • The Encoder has failed Page 60 Baby Lock Crown Jewel Service Manual...
  • Page 63 If all the above have been checked and verified, the offending encoder may need to be replaced. ‚ • The Control Board is damaged If replacing the encoder does not resolve the issue, you may have a damaged Control Board. This is ‚...
  • Page 64 • If the text shows a completely different button, however, (i.e. you press the Start button and you see “Minus Key” in the text box), you may have the wrong membrane switch on the wrong side of the Page 62 Baby Lock Crown Jewel Service Manual...

  • Page 65: Burn-In Note

    The control board then looks at how fast the motor is really going and compares it with the speed it should be going. For example, a Baby Lock Tiara machine set at 10% speed should be driving the motor at 180 rpm.
  • Page 66 Run burn-in for four to five cycles after working on the machine to ensure calibration is still good as the dynamics of the machine may have changed. Page 64 Baby Lock Crown Jewel Service Manual...

  • Page 67: Useful Part Numbers

    Useful Part Numbers QM40131 Needle bar cylinder height gauge (for all machines through January 2016) QM49265 Tool Kit QM20204 Small jumper for remote switch (Baby Lock Crown Jewel III and Tiara III) QM49261 ESD Field Service Kit QM49400 Customer Timing Kit QM10589-11A Hook grub/set screws www.babylock.com...
  • Page 68 Notes Page 66 Baby Lock Crown Jewel Service Manual...
  • Page 69 www.babylock.com Page 67...

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