Brother 681B-UG
CAUTION WHEN CHANGING NEEDLE, BOBBIN OR LIGHT BULB, OR WHEN SEWING MACHINE IS NOT IN USE, IT IS RECOMMENDED THAT ELECTRICAL SUPPLY IS DISCONNECTED TO AVOID ELECTRICAL HAZARDS.
CONTENTS 1. Knowing Your Sewing Machine . . . . . . . . . . . . . . . . . . . . . . .2 PRINCIPAL PARTS . . . . . . . . . . . . . . . . . . 2 ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . 4 OPERATING YOUR SEWING MACHINE . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connecting plug. . . . . . . . . . . . . . . . . 5 Controlling sewing speed. . . . . . . . . .5 UPPER (NEEDLE) THREAD. . . . . . . . . . . . 6 LOWER (BOBBIN) THREAD. . . . . . . . . . . 7 How to wind bobbin. . . . . . . . . . .
1. Knowing Your Sewing Machine Principal Parts 1. Top Cover 2. Zigzag Width Lever (See page 12) 3. Upper Thread Guide and Bobbin Winder Tension Disc 4. Front Thread Guide 5. Pressure Adjuster (See page 13) 6. Face Plate 7. Thread Tension Dial (See page 15) 8. Thread Cutter 9. Presser Foot Screw 10. Presser Foot (Zigzag) 11. Feed Dog (See page 14) 12. Needle Plate 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
23. 24. 25. 26. 27. Motor Belt Motor 3-pin Socket Extension table Presser Foot Lifter When the presser foot is at the highest position, the tension on the upper thread is released. 28. Sew-light Switch Turn this knob in any direction to switch light on and off.
Accessories 1. Needles Single Needle No.14 (3 pcs.) 2. Straight Stitch Foot 3. Narrow Hemmer foot 4. Zipper Foot 5. Buttonhole Foot 6. Button Sewing Foot 7. Seam Ripper 8. Bobbin (3 pcs.) 9. Cloth Guide with Screw 10. Screw Drivers (Large & Small) 11.
Operating Your Sewing Machine CONNECTING PLUGS 1. First connect three-prong plug in socket. 2. Then connect electric supply plug into wall. CAUTION When changing needle, bobbin or light bulb, or when sewing machine is not use, it is recommended that electrical supply plug is disconnected to avoid electrical hazards. Place foot on control pedal as shown in illustration at left. When foot controller is pushed down lightly, machine will run at a low speed.
Upper (Needle) Thread Before threading, make sure to raise presser foot and take-up lever to the highest position. Then place spool of thread on the spool. 1. Pass thread through the upper thread guide, (rear) and thread guide (front). 2. Now bring thread down and up through thread tension dial from right to left so that thread picks up thread check spring. 3. Pass thread into the eyelet of the thread take-up lever from right to left. And bring down again and pass through the thread guard. 4. 5.
Lower (Bobbin) Thread HOW TO WIND BOBBIN 1. Loosen stop motion knob by turning it toward you. 2. Place an empty bobbin on the bobbin winder pin. 4. Wind the thread a few times around the bobbin clockwise and push the bobbin toward bobbin presser. Start the machine gently. 5. Bobbin stops winding when full. 6. Push the bobbin to the left and remove it. Tighten stop motion knob securely. 3. Place thread spool on the spool pin and take thread through bobbin winder tension disc.
HOW TO REMOVE BOBBIN CASE 1. 2. 3. 4. Raise needle to its highest position. Open the shuttle cover. Pull and open the latch of bobbin case. Pull out bobbin case from the shuttle. HOW TO THREAD AND INSERT BOBBIN CASE 1. Unwind about 8 cm (3- inches) of thread from the bobbin. Insert wound bobbin into 2. Pull trailing thread into the slot case. 3. Pull thread to the left under the tension spring until thread enters into delivery eye. 4.
HOW TO PULL UP LOWER THREAD 1. Raise needle and presser foot to the highest point. With left hand, hold the end of upper thread and with right hand, turn balance wheel toward you until the needle moves down and up again to its highest position. 2. Now upper thread catches the lower thread in a loop. Pull upper thread toward you so that lower thread will come up in a large loop from the presser foot. 3.
Relative Chart of Sewing Material, Needle and Thread NEEDLES SIZES SEWING MATERIAL VERY THIN Fine tricot, Fine Lace, Thin linen, Silk, Tulle, Chiffon 9 LIGHT WEIGHT Organdy, Jersey, Voile, Taffeta, Synthetics, Silk Batiste 11 MEDIUM Cotton, Gingham, Poplin, Percale, Pique, Satin, Velvet, Lightweight wool, Fine corduroy, Suitings.
Sew-Light To change the bulb: 1. Swing open face plate. 2. Remove bulb by turning counterclockwise. 3. After replacement, close the face plate. NOTE: 1. Make sure new bulb is the same specification as old one. 2. Make sure to switch off the light and pull out supply plug when you replace the bulb in order to avoid electric hazards. Presser Foot To remove the presser foot; 1. Raise needle to its highest position. 2. Raise presser foot. 3. Loosen presser foot thumb screw and remove presser foot. 4.
STITCH LENGTH The stitch length is regulated by turning the stitch length dial. Numerals on the dial represent the stitch length. THE HIGHER THE NUMBER, THE LONGER THE STITCH. To increase the stitch length, turn stitch length dial counter-clockwise to larger number on the dial. To decrease the stitch length, turn dial clockwise to smaller on the dial. NOTE: 1. The “0” on the dial means that the material is not being fed. 2. Always set at 4 when you sew triple stretch stitch (See page21).
PRESSURE ADJUSTER Correct pressure on presser foot is important to obtain the smooth sewing. Regulate presser according to type and thickness of the materials to be sewn. 1. To regulate the pressure, lower presser foot. 2. Push outer ring of pressure adjuster down, and inner pin will spring up to its highest position. In this position, pressure is completely released from the presser foot. 3. To increase pressure, push inner pin down with your finger.
FEED DOG Proper use of Feed Dog is necessary for correct sewing. 1. “DOWN” is used for special sewing such as darning, embroidery, etc. 2. “UP” is used for general sewing. REVERSE STITCH Push the Reverse Sewing Button in as far as it will go to sew in reverse position. Release Reverse Sewing Button and you are back to sewing in a forward position. Reverse sewing is used for tacking and reinforcement.
THREAD TENSIONS It is important that tension of upper and lower threads be equal to prevent puckering of material or other problems. It is recommended that a test sample be made before starting to sew. UPPER THREAD TENSION To regulate upper thread tension, merely turn thread tension dial with your thumb after lowering the presser foot. THE HIGHER THE NUMBER, THE TIGHTER THE TENSION. To increase tension: Turn dial to right to larger number. To decrease tension: Turn dial to left to smaller number.
PERFECT STITCHING Tension of upper and lower threads should be equal, just sufficiently strong to lock both threads in material. Perfect stitching appears flat with no puckering of material. INCORRECT STITCH (A) When the upper thread lies on the surface of the material by pulling the lower thread up as shown. This is caused by tight tension on the upper thread or loose tension on the lower thread. To correct this, turn the upper thread tension dial to a lower number.
2. Straight Stitching SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. HOW TO START SEWING 1. Raise needle to its highest position and lift presser foot. 2. Place material under presser foot and position needle about one half inch (10mm) from material edge. 3. Lower presser foot. 4. For reverse sewing push Reverse Sewing button sewing is used wherever reinforcement is needed. 5. Release Reverse Sewing Button and start sewing in forward position. NOTE: Do not pull the material. Let the machine do the work.
HOW TO FINISH YOUR SEWING PROJECT (REVERSE STITCHING) Reverse stitching is used to reinforce stitches near the edge of material or wherever reinforcement is needed. 1. That is done by stitching to the material edge… then stopping. 2. Push Reverse Sewing Button and stitch backwards for ½ inch (10mm) from material edge. HOW TO REMOVE FINAL SEWING FROM MACHINE 1. Stop the machine. 2. Raise needle to its highest position and make sure that the thread take-up lever is in the highest position also. 3.
3. Zigzag Stitching SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. SIMPLE ZIGZAG STITCH Set the Stitch zigzag, sew about 1-4 to obtain simple zigzag stitch. 1. Before stitching zigzag, sew about 5-6 Straight stitches with stitch length between for reinforcement. 2. Set zigzag width lever to your desired width and commence to sew. 3. Before removing work from machine, reset the zigzag lever to “O” and sew 5-6 stitches for reinforcement.
DECORATIVE STITCHES SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE.
4. Using Built-in Patterns TRIPLE STRETCH STITCH SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. Set Blind Stitch and Stretch Stitch Lever at as shown in illustration at left. The “Triple Stretch Stitch” is used for any stretch material such as knitted fabric, tricot, etc. This stitch is three times the strength of a regular stitch and gives elasticity to seams which prevents breakage of thread.
BLIND STITCH SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. SET BLIND STITCH AND STRETCH STITCH LEVER AT 1. Fold material to size of hem desired and then fold back as shown in Figure A, leaving ¼ inch (6mm) overlap at edge. 2. Sew on fold as in Figure B. 3. When material is unfolded you will have a blind stitched hem as in Figure C. NOTE: Thread used should be the same color as material used. SHELL STITCH SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE.
5. Various Other Stitches BUTTONHOLE SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 4. Commence to sew 5 to 6 stitches and stop the machine when the needle is in the material at the left side of the row. Step C: 1. Step A: 2. 3. 4. Lift the presser foot slightly and set the feed dog knob to Up. Raise the needle and set the zigzag width lever to 2. Sew row to predetermined length. Stop the machine when the needle is in the material at the left side of row. Step D: 1. 2. 3. 4.
MENDING SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Place reinforcement material under material to be repaired. 2. Sew both edges of tear together. 3. Use satin stitch to strengthen and secure ends of tear as in illustrations. ATTACHING LACE SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Place lace under material edge letting it overlap ¼ inch (6 mm). 2. Place under presser foot and sew.
APPLIQUÉING SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Baste cut design to the material. 2. Following the design, commence to sew carefully. 3. Cut away the surplus material close to the design. 4. Remove basting. CORDING SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. In accordance with thickness of cord being used, set zigzag width lever. 2. Place cord on fabric to be sewn. 3. Lower presser foot and sew using zigzag stitch. Guide cord by hand to where you desire it.
MONOGRAMMING, USING EMBROIDERY HOOP SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Remove presser foot. 2. Draw lettering on the right side of the material. 3. Stretch work between embroidery hoops as firmly as possible. 4. Place the work under the needle and lower presser bar. 5. Pull lower thread up through the material at starting position by turning balance wheel and holding both threads. 6.
EMBROIDERING, USING EMBROIDERY HOOP SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Remove presser foot. 2. Draw design on the material. 3. Use embroidery hoop as you would for monogramming. 4. Position the hoop under the needle and lower presser bar. 5. Pull lower thread up through material. 6. Stitch outline of design by removing embroidery hoop accordingly. 7.
BUTTON SEWING SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Put button in place on material to be sewn. Place under presser foot. 2. Set zigzag width control to regulate distance of stitch between the holes in the button. 3. Lower presser foot and check to see that needle enters holes in button properly. 4. Slowly sew approximately 10 stitches. 5. Stop machine and raise needle from the Material. 6. Turn zigzag width lever to 0. 7.
DARNING SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Place portion to be darned under the presser foot. 2. Lower presser foot. 3. Sew alternately drawing the work gently away from you and pulling it toward you. 4. Repeat this motion until the portion to be darned is filled with parallel lines of stitching. CLOTH GUIDE The cloth guide helps to make straight and parallel stitches follow the edge of the material.
NARROW HEMMING By using narrow hemmer foot a neat scroll type hem is made. SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Cut top corner of the material about 0.3cm (1/8”). 2. Place material wrong side up and insert cut off angel into foot opening. 3. Pull material by hand from the back of the presser foot. Make sure the needle is positioned over material. Lower presser foot. 4. Make sure upper and lower threads are placed behind presser foot. 5. Sew at medium speed.
ZIPPER INSERTION Zipper foot is used to sew various types of zippers and can easily be positioned to right or left side of needle. When zipper is being sewn at left side of needle, position zipper foot by loosening thumb screw and sliding zipper foot to right. When zipper is being sewn at right side of needle, position zipper foot by loosening thumb screw and sliding zipper foot to left. SET YOUR SEWING MACHINE AS PER FOLLOWING TABLE. 1. Lower needle into side notch located on presser foot.
6. Maintenance and Care of Your Machine Cleaning The sliding parts of the shuttle race body and the hook must be cleaned regularly so that lint does not accumulate. REMOVING SHUTTLE HOOK 1. 2. 3. 4. Raise needle to its highest position. Open the shuttle race cover. Take out bobbin case. Push latch levers down and remove retaining ring. 5. Remove hook by grasping center post of hook. NOTE: When needle is lowered, hook cannot be removed. CLEANING SHUTTLE RACE 1.
Oiling For smooth and silent operation the moving parts of the machine should be oiled periodically. (see diagram below) OIL ONCE A WEEK IF MACHINE IS USED MORE THAN ONE HOUR. PER DAY. IF MACHINE IS USED MORE OFTEN OIL EVERY DAY. NOTE: If machine has not been used for along period of time, oil tends to coagulate and operation of machine will not be smooth. To ensure best operation in such a case, apply a small amount of benzine to oiling points as noted in diagram.
Check List for Better Sewing Check this list if you are having the following problems: IF MATERIAL IS NOT FED IF UPPER THREAD BREAKS 1. Feed dog is down . 2. Stop motion knob is loose. 3. Stitch length regulator is at 0. 1. 2. 3. 4. Upper threading is not correct. Upper thread is too large for needle eye. Upper thread tension is too tight. Needle is inserted incorrectly. IF NEEDLE BREAKS 1. 2. 3. 4. 5. 6. Needle is inserted incorrectly. Needle clamp screw is loose. Bent needle is used.
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