Related Manuals for Bernina 700 Series
Summary of Contents for Bernina 700 Series
- Page 1 BERNINA Advanced Technical Training Service Procedure 700/800/900 Series For the use of authorized BERNINA dealers only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 2 One of the most effective ways of conducting these charges away is by grounding. This can be accomplished by using the grounding mat and wrist strap provided by Bernina of America, Inc.
- Page 3 Change stitch length, stitch width, needle position, select different stitches and features, check sewing light etc. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 1/32...
- Page 4 In order to follow a Procedure systematic service procedure we recommend to follow the sequence outlined in this manual For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 2/32...
- Page 5 Replace power cord. Check power cord and plug Machine hesitation for damage. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 3/32...
- Page 6 Remove tape from free arm cover and suggest to the consumer to use a presser foot with a fabric guide instead. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 4/32...
- Page 7 • Feeding problems tightening the collar against the bushing. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 5/32...
- Page 8 (not the tension spring. adjusting screw) For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 6/32...
- Page 9 Replace if the race is worn or the grooves are too excessive. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 7/32...
- Page 10 To eliminate play carefully rotate the rack counter clockwise. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 8/32...
- Page 11 930 only) and adjust drop mechanism (Model 930) check the distance of 38mm between the collar and the coupling half. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 9/32...
- Page 12 The linkage must move linkages. • Inconsistent freely, must be play free and Replace parts if play is buttonhole lubricated. excessive. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 10/32...
- Page 13 Clean the resistor hesitates when foot reaches the top speed of plate. control is pushed. 1050 rpm. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 11/32...
- Page 14 Max/Min switch. 930-910. Check if the motor is wired correctly. Models 930/910: Repair circuit board For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 12/32...
- Page 15 Model 930 the clips and the transmission noise bracket holding the motor secure have a tendency to become bridle over time For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 13/32...
- Page 16 Warning if the Model 730/830 brushes are worn out, the spring behind the brushes will not stop and will damage the armitor. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 14/32...
- Page 17 Squeaky belts can be • Binding machine quieted by running the belts though a bar of soap. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 15/32...
- Page 18 • Clinging sound from Clean and lubricate the transmission the motor to the hand wheel. step pulley shaft. hand wheel side. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 16/32...
- Page 19 • Adjust belt tension. may be wrapped around the • Adjust hand wheel step pulley and handwheel. release mechanism For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 17/32...
- Page 20 • Check flange screw for tightness. • Replace notched segment with new style and adjust INSTRUCTI0N IN PARTS 3.2, 3.3 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 18/32...
- Page 21 Select buttonhole position #5 and check if the needle- positioning knob is spring loaded towards the left hand side. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 19/32...
- Page 22 Model 830 replace old style with new style stitch length lever Clean and adjust as needed INSTRUCTION IN PART 2.3 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 20/32...
- Page 23 1-20 (not engaged in either position) adjust max stitch width the needle bar should be “sloppy loose” For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 21/32...
- Page 24 The shaft though the • Skipped stitches gears are bind and play free. vertical hollowed bore hole. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 22/32...
- Page 25 All machines the cams. • Inconsistent stitch INSTRUCTION IN pattern PART 2.4 • Clanking noise when using the cams For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 23/32...
- Page 26 • Clanking sound when riding in the center of up the high and low slopes. one single cam. using the cams. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 24/32...
- Page 27 The center disc is straight, parallel and equally distributed in the slot of the top cover. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 25/32...
- Page 28 Adjust or replace if • Inconsistent loop broken or bent. formation. INSTRUCTION IN PART 2.5 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 26/32...
- Page 29 • Inconsistent tensions cutting in to the paint and • Damage of paint metal fame. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 27/32...
- Page 30 Adjust the spring • Inconsistent satin Spring pressure and the stitch. position. • Tick tick sound while sewing For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 28/32...
- Page 31 • Skipping stitches tightly against the when using needle bar. double/triple needles Straighten the needle • Needle breakage bar radialy. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 29/32...
- Page 32 4, the needle bar support should swing freely to the left and right. There is not too and fro play. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 30/32...
- Page 33 • Loud banging sound at full speed. • Needle bar is twisted • Sticking clutch For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc Page 31/32...
- Page 34 830 chart can be used for most of the machines in the 800 series. The 930 chart can be used for the 930/931/932 and 910. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Service Procedure 700-900.doc...
- Page 35 The Code Number refers to the last pages of this manual indicating what specific adjustment have to carried out after this particular parts was removed or replaced. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 36 5. Loosen one or two screws from the shaft 6. Remove the shaft. 7. Remove all base plate and cover screws and remove the base plate. 5& 5& 5& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 2/45...
- Page 37 19. 930 only, leave the feed dog drop mechanism set screw loose. Mount the feed dog lifter mechanism, lubricate each joint and assemble. 11& 10& 9& 12& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 3/45...
- Page 38 12 Insert a screw diver and loosen the second screw, using the screwdriver to direct the feed dog to the correct position. 12 Tighten both screws. 5&7 6&7 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 4/45...
- Page 39 2. Select stitch length 0mm, buttonhole # 5 and remove all knobs. 3. Remove faceplate. 4. Remove knurled screw # 13, washer # 16 and spring # 14. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 40 10. Remove step pulley. 11. Carefully remove the whole stitch length mechanism. Do not apply any force. 8& 5& 6& 9& 9& 7& 10& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 6/45...
- Page 41 13. Mount the smaller part of connecting strap on bolt and secure it with the collar the parts must move play free and without any play. 14. Mount the spring with the longer end on bolt and secure it with the C-clips 12,13& 13& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 7/45...
- Page 42 Place a piece of fabric under the presser foot and run the machine. Now turn the buttonhole tool until the fabric remains stationary. Tighten two screws. 15& 22& 15& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 8/45...
- Page 43 7. Slide centering gauge # 398.100.04 on cam spokes. 8. Remove the cam fastening screws and replace cam stack gear 3,5,9,11 &14 2,12 &14 13 & 4,6,12 & 15 8& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 9/45...
- Page 44 2. Make a rough adjustment by rotating the worm gear below the came stack gear to synchronize the couplings halves. Back couplings half Front couplings half For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 10/45...
- Page 45 11. Then tighten the worm gear screws and repeat the test. 4,7,8 &9 5& 10& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 11/45...
- Page 46 6. Remove the collar and shaft. 7. Carefully swing the needle bar support out and downwards. 5&22 4,6& 6,22 &26 3&22 7,22 &25 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 12/45...
- Page 47 Note: for Model 930 with the needle bar clutch removed check if the clutch mechanism needs to be disassembled for cleaning. 10& 8& 13,15 17& ,17& 12& 15,17 19& &20 11& 9& 19& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 13/45...
- Page 48 26. To correct, move upper end of the needle bar support to either the front or back, to obtain the least amount of friction. Go through all long stitch and basting adjustments and the entire sewing-in procedure. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 49 4. Remove all the knobs. 5. Remove faceplate. 6. Remove four screws from the buttonhole plate and take out the whole mechanism carefully. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 15/45...
- Page 50 11. Mount faceplate and knobs back on, making sure knobs line up with the marks on the faceplate. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 51 7. Remove clutch and zigzag fork 8. Disassemble the entire unit, clean, oil and assemble the clutch. 7&10 7&11 2&12 5&13 5&11 6&9 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 17/45...
- Page 52 16. Perform the adjustment (930 only), loosen the 5.5mm nut and turn bolt on the eccentric. Adjustment for the 830 and 730 carefully reform bolt. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 53 Loosen nut and hex screw and take out parts. 4. Pull presser foot bar up and remove it. 5. Clean presser foot bar and bushings and check for free presser foot movement. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 54 5. Place the faceplate back on to the machine, mount all knobs and line up the knobs with the faceplate. 2&4 3&4 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 20/45...
- Page 55 5. Check for proper operation. 6. Mount base plate and knee lever shaft back on. 3&4 Spring support For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 21/45...
- Page 56 2. Remove C-clip and exchange the bobbin winder. 2. Make sure the pin in the white disc fits inside the metal fork. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 22/45...
- Page 57 9. Model 930 with feed dog drop mechanism adjusts 38mm distance from collar. 10. Install the base plate and free hand lever shaft play free and make sure the set crew is very tight. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 58 5. Once the lever move freely apply light lubricant. 6. Install the stitch width knob and needle positioning knob and reset to match the faceplate. 1&6 2&6 2,3& 1&6 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 24/45...
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Page 59: Section 3: Adjustments
The cushioner limits the height of the decoupled needle bar for the for the clutch pin to find the needle bar hole. coushioner Thread catcher The thread catcher holds the thread tight while the needle bar is disengaged. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 25/45... - Page 60 5. Put a 0.6mm feeler gauge between needle bar guide and hinge bolt. 6. Tighten screw. 7. Mount spring 8. Repeat the test. 2&7 3&6 Release lever, tear drop shaped. 4&6 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 26/45...
- Page 61 6. Reassemble spring and piston, install clutch lever, shaft and C-clip, and install needle bar support. 7. Follow instructions above under "Needle Bar Guide". 4&6 3&6 2&6 4&6 3&6 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 27/45...
- Page 62 Needle Bar Cushioner For the next adjustments the cushioner needs to be in a high position. Turn cushioner # 122 up three complete revolutions. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 63 6. The space between transmission lever and control lever should be 2mm. Use gauge #398.128.03. 6&13 Transmission lever 7&17 4,10 8&16 &12 14& 5,9& Control lever 15 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 29/45...
- Page 64 15. Push follower arm very gently to the front, and lever to the rear. 16. Tighten the two screws on transmission lever. 17. Attach spring 18. Recheck the adjustment. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 30/45...
- Page 65 3. The upward motion of transmission lever has to be completed when the needle bar is in the highest position. Transmission lever 3 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 31/45...
- Page 66 7. Turn cam in direction of motion until the tracer has reached its highest point on the cam as it rises. 8. Tighten the two screws. 5&8 5&8 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 32/45...
- Page 67 6. Now make a second mark 10mm below the first mark. 7. Set LCR knob left. 8. Set stitch width knob to "0". 9. Set changeover knob to right (long stitch). For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 33/45...
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Page 68: New Style
If it is too far to the left, the needle bar will is too low, the needle bar will decouple too early. decouple too early. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc... - Page 69 The needle bar clutch moves down and up until it reaches the highest point. Then the release lever should pop out. If it does not work as described, go through the entire long stitch adjustment again more carefully. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 70 1. Set changeover knob to right. 2. Loosen screw 3. Adjust lateral position of thread catching lever as required. 4. Tighten screw. 2&4 1& For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 36/45...
- Page 71 8. Loosen 2.5mm Allen screw and raise or lower the left part of lever to bring thread catcher to its proper position. Final check: When the handwheel is turned backwards, the take-up lever should not lift up the thread catcher lever. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 72 4. Loosen the three fixing screws, set bearing plate to the prescribed position and tighten screws. 5. Mount original sleeve and hand wheel. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 73 2. Move toggle lever in either direction until lever has approximately 1mm clearance from latch. 3. Tighten screw. Be careful not to over-tighten the screw 1&3 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc...
- Page 74 3. For a fine adjustment move the spring into the second sleeve setting washer #154 so the take-up lever stops exactly in its position. highest position. 4. Tighten shank screw #155 firmly. For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 40/45...
- Page 75 9. Repeat adjustments until needle stops in the described position. 10. Push the cam disc to the left against the feed dog advance eccentric. 2,5,8 &10 For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 41/45...
- Page 76 Setting Pattern Indicator Thread Passage Setting Back run Setting Loop lift 15/16 Needle Height Hook Needle Clearance Feed Dog in Needle Plate For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 42/45...
- Page 77 Presser Foot Adjustment & Darning Device Setting Tension 30/31 30/31 30/31 30/31 30/31 30/31 Buttonhole Adjustment 35-27 25-27 25-27 25-27 25-27 25-27 Belt Tension For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 43/45...
- Page 78 Thread Passage Back run Loop lift 20/21 Needle Height Hook Needle Clearance Position of Feed Dog in Needle Plate Feed Dog Height For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 44/45...
- Page 79 43-45 43-45 43-45 43-45 43-45 Buttonholer 46-49 46-49 46-49 46-49 46-49 Multi-Motion Stitch 27-28 27-28 27-28 27-28 27-28 Feed Dog Drop Mechanism For the use by Authorized BERNINA Dealers Only Last Revised 5/11/2005 2003 Bernina of America Inc Page 45/45...