Please make sure that the thread is inserted between the two thread tension disks. If your brand of Thread “pops-out” of the tension disks, wind the thread all the way around the disks and back through the thread guide marked (A.) in photo number 7 on page 6. artisan A. u Wind the thread counter -clockwise two revolutions around the tension device disk. TORO-4000 P TORO-3000 with H/D Adjustable Pedestal Motor Drive with EP-Ped Adjustable Pedestal Motor Drive B. artisan u TORO 3000 and TORO 4000 Threading Diagram TORO-4000 R with EP-Ped Adjustable Pedestal Motor Drive TORO-4000 R with Ped-600 Adjustable Pedestal Motor Drive TORO 3000 and TORO 4000 See Page 6 for Another View of Correct Threading Instructions INSTRUCTION and SPARE PARTS MANUAL Winding the Bobbin on a TORO-4000 R 1. 2. 3. Table of Contents I. Operating Instructions A. B. Caution Warnings Specifications Page 3. 3. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. CLEANING LUBRICATION. Where to oil the machine. HOW TO INSTALL THE NEEDLE HOW TO TAKE OUT THE BOBBIN HOW TO WIND A BOBBIN HOW TO INSTALL THE BOBBIN HOW TO THREAD THE MACHINE ADJUSTING THE STITCH LENGTH THREAD TENSION THE THREAD TAKE-UP SPRING ADJUSTING THE PRESSER FOOT PRESSURE FEED DOG ADJUSTMENT WALKING FOOT HEIGHT ADJUSTMENT SHUTTLE AND NEEDLE TIMING ADJUSTMENTS FEED TIMING ADJUSTMENTS TROUBLE SHOOTING GUIDE 4. 4. 5. 5. 5 and 31 6. 6 and 32 7. 7. 7. 8. 8. 9. 9, 10, 11, 12. 12. 13. Raise the presser foot with the hand lifter lever. Insert the bobbin onto the bobbin winder spindle. Thread the winder in the order illustrated and wind the thread four or five turns onto the bobbin. 4. Push the bobbin winder trip latch (A) down. When the machine is operated the spindle will turn and start to wind the bobbin. 5. When the bobbin is fully wound, the trip latch will disengage and the spindle will stop. To adjust the quantity of thread on the bobbin: 1. Loosen the adjusting screw and nut number (B) and (C.) and turn the screw counterclockwise to decrease the amount of thread on the bobbin and clockwise to increase the quantity of thread wound onto the bobbin. 2. Tighten the locking nut after adjusting for the correct amount of thread to be wound onto each bobbin. If the bobbin is not winding evenly, move the thread guide (D) either left or right to compensate. Several Bobbins can be wound while the machine is stitching. II. Spare Parts List 1. 2. 3. 4. 5. 6. 7. 8. 9. FRAME AND COVER COMPONENTS MAIN SHAFT COMPONENTS NEEDLE BAR & UPPER FEED COMPONENTS PRESSER BAR COMPONENTS FEED MECHANISM HOOK DRIVING SHAFT COMPONENTS TENSION COMPONENTS BOBBIN WINDER & THREAD GUIDE PARTS KNEE LIFTER COMPONENTS 16. 17. 18, 19. 20, 21. 22, 23. 24, 25. 26, 27. 28, 29. 30. TORO-3000 Bobbin Winder Instructions: 1. Place the bobbin on the spindle. Align the small pin with the hole or slot in the bobbin. 2. Insert the thread into the eye above the bobbin winder tension. 3. Pull the thread around the and through the tension discs. 4. Continue pulling the thread to the bobbin and wrap several turns of thread around the bobbin. 5. Push the Latch up against the center of the bobbin. 6. Operate the machine and the bobbin will begin to fill. Several bobbins can be wound while the machine is in operation. If the thread is wound too loosely, tighten the tension nut, if too tight, loosen the nut. We Strive to Continuously Improve our Machinery. Specifications and features are constantly being updated. Your New TORO Stitcher may look slightly different then as shown in this pamphlet. 2. 31. artisan u TORO-3000 and TORO-4000 Extra Heavy Duty Cylinder Bed Lockstitch Compound Needle Feed Walking Foot Stitching Machines. CAUTION….. READ BEFORE OPERATING THIS MACHINE... 1. 2. 3. 4. 5. Lubricate the Stitcher before operating! Confirm you are plugging the electric motor into the correct rated voltage. Confirm the machine and motor are turning over in a counter-clockwise rotation. Your Artisan TORO machine is normally set up with an SR-2 speed reducer/transmission to controll your stitching speeds and to add additional torque to drive the needle into heavy leathers and fabrics at slow operating speeds. After operating the machine for more than 25 days, if desired, the top stitching speed may be increased to a maximum speed of 800 spm. 6. 7. 8. 9. 10. Keep your hands and all clothing away from the machine when pushing the button to turn the electric motor on. Switch on the Servo Motor and check for the LED light to illuminate. Always switch off the motor when finished sewing. Never leave the motor running while away from the machine. Always switch off the motor before changing needles or adjusting the sewing machine. The machine is a fine tool, not a toy. Do not let children operate the sewing machine. SPECIFICATIONS 30. USAGE Saddle Stitching, Tack, Shoes, Boots, Saddle Bags, Harness. Needle Schmetz 794 D or 794 S for Leather. For fabric 794 SEWING SPEEDS Normal up to 600 spm. Max. 800 spm. Needle Diameter # 110 to 250 # 18 to 27 STITCH LENGTH 0 to 11 mm Thread Z-69 to 415 # 00 to # 6 cord PRESSER FOOT LIFT By Hand Lifter 12 mm By Foot Lifter 22 mm Stitch Adjusting Sliding Lever with Reverse THREAD TAKE-UP SYSTEM Cam type thread take-up lever Lubrication Manual Lubrication with Sewing Machine Oil NEEDLE BAR STROKE 56 mm Motor ESM-400 A Electronic DC Servo. 3. 8. 1. Normal stitching operation causes dust, lint, and dirt to build up around the moving parts of your TORO-3000 and 4000. Periodically clean around all the moving parts of the machine. Pay special attention to keeping the shuttle, shuttle race, and throat plate area clean. Simply wipe off the build-up with a clean cloth or blow off the dirt with compressed air. 2. TORO-4000 P Lubricate these five points through the front inspection cover. Your new artisanu TORO-3000 and 4000 was thoroughly lubricated at our factory. However please re-lubricate the machine before putting the new stitcher into service. The TORO-3000 and 4000 requires lubrication at the above points on a regular basis. Artisan recommends that the machine is oiled about every 7 to 12 hours of actual usage. We suggest the best time to oil the machine is at the end of your work day. When you begin to use the machine the next time, simply wipe off the excess oil and the dirt or lint at the same time. If sewing for prolonged periods of time oil the machine about every 5 to 7 hours. 4. 29. 8. BOBBIN WINDER AND THREAD GUIDE COMPONENTS 3. SWITCH OFF THE MOTOR BEFORE REMOVING OR INSERTING A NEEDLE Artisan recommends that you use only “SCHMETZ” brand Needles. For Leather use size; 794 D, 794 S, 794 LR For Canvas, Nylon and Fabrics use size: 794 1. Turn the hand wheel counter-clockwise and raise the needle bar to its highest position. 2. Loosen the needle set screw #(1) remove the old needle and insert a new needle #2 into the needle bar. Push it up into the hole as far as it will go. 3. Remember to locate the needle scarf #(A) towards the hand wheel and the long groove of the needle to the left side. 4. Securely tighten the needle set screw #(1). 4. 1. 2. Turn the handwheel counter-clockwise until the needle reaches its lowest position. Place your open left hand under the Shuttle area to catch the bobbin. 3. 4. Depressing the retaining latch #(1) will open the bobbin case. Remove the bobbin being careful to leave the light weight beehive shaped bobbin push spring inside the bobbin case. of a TORO-4000 P 5. 1. 2. 3. Push the bobbin #(3) onto the bobbin winder shaft until it seats. As pictured, thread the sewing thread through the thread guide # (2) and around the tension post counter-clockwise, once, then back out through the front thread guide. Wind the thread around the bobbin several times and push the lever #(5) to the left to engage the bobbin winder. As you are sewing the bobbin will begin to fill, when the bobbin is filled, the latch will disengage and the bobbin spindle and bobbin will stop. 4. Loosen screw #(6) and adjust the bracket on lever #(5) to adjust the fill amount on the bobbin. See Page 31 for bobbin winding instructions for the TORO-3000 and TORO-4000 R machines. 28. 5. 6. 7. 1. Pull approximately 3 to 4 inches of thread off the bobbin and insert the new bobbin into the bobbin case so that when turning the bobbin turns counter-clockwise. 2. Pass the thread through the slot #(A) of the bobbin case and pull the thread until the thread passes under the bobbin thread tension adjusting spring and rests in the groove as pictured. 3. Leave at least 3to 5 inches of thread remaining and hanging out beyond the bobbin case. 4. Turn the handwheel counter-clockwise, with the needle threaded one revolution, and the bobbin thread will be pulled up through the needle plate. 7. (See Back Page for Greater Detail) 1. 2. 3. A. B. 4. F. artisan 5. 6. 7. E. 8. G. C. 9. 10. 11. 12. D. H. I. 13. 14. 6. Place a spool of thread on the sewing machine thread stand which is normally located on the right hand rear corner of the sewing machine table top. Pull some thread off the spool and thread though the eyelet directly over the spool on the upper horizontal lever of the thread stand. Pass the thread directly through the first thread guide #(A) of the machine before the upper tension post #(B). Pull the thread over the top and between the two tension disks of the upper tension assembly #(B). Then pull additional thread through the thread guide #(C). Wind the thread in a counter-clockwise direction around the main tension roller #(D) two complete revolutions and again through thread guide #(C). Then, thread through the check spring #(E) , located slightly downward and to the right of the main tension #(C). Pull additional thread off and up and through the eyelet of the “Take-up” lever #(F) from the left side to the right side. Then pull more thread down and pass the thread through the middle thread guide #(G) to the left side of the screw only. Continue through the lower casting thread guide #(H). Then through the Needle Bar thread guide #(I). Lastly, pass the thread through the eye of the needle from the left side of the needle to the right side of the needle towards the handwheel. About 5 or 6 inches of thread should extend beyond the needle. Make one counter-clockwise revolution of the handwheel and pick up the bobbin thread above the needle plate. Please Hold the Bobbin and Needle Thread taughtly in one hand while beginning to stitch the first two or three stitches. Then release and trim the excess thread. See Back Page for Greater Detail 27. 8. To Adjust the Stitch Length 1. Turn the adjuster nut #(1) counter-clockwise and push the handle in a downward direction for a longer stitch length. 1. For a shorter stitch length raise the handle and then turn the adjuster nut #(1) to lock in the handle. 2. A zero stitch length is in the middle of the slot. The longest stitch length is at the bottom of the slot located below #11 stamped on the face of the guide. 4. Pull the handle upwards to stitch in reverse. When the forward stitch length and the adjuster nut are set correctly, the machine will sew in an equal distant reverse stitch length. 5. To correctly back stitch in the same needle penetration holes; stop the machine with the needle down, then raise the needle approximately 1/4” upwards, pull the reverse handle all the way up, then make several stitches in reverse. 6. To sew forward, push the handle all the way down and sew. 9. Aux. Tension Looser (B) Tighter (A) Main Tension Adjusting the Needle Thread Tension: a. Turn the nut on the end of the Aux. Tension shaft in a clockwise direction to increase thread tension in small amounts #(A) b. Rotate the nut counter-clockwise to decrease the thread tension. #(B) c. For a greater amount of thread tension rotate the nut on the main tension device in a clockwise direction. To loosen rotate the nut counter clockwise. If you have thread loops on the bottom side of your work, tighten the main tension. If the thread knot is on the top side of the work loosen the main tension. For minor adjustments adjust with the aux. tension. Adjusting the Bobbin Thread Tension: a. Loosen the locking set screw #(1) with a small screw driver. b. Turn the spring tension adjusting screw #(2) clockwise for greater thread tension. c. Turn the adjusting screw #(2) counter-clockwise to decrease the thread tension. Normally one does not need to re-adjust the bobbin case thread tension unless one changes the sewing thread to a very small diameter or size. 10. The Standard stroke of the thread take up spring, commonly called the check spring #(1) is from 8 to 10 mm or about 3/8”. Normally the stroke or spring tension does not require re-adjustment. 26. 7. 11. 6. 1. 2. 3. 4. The outside presser foot pressure is adjusted by loosening nut #(3). To increase the holding capacity of the Outside presser foot, turn the regulator # (1) clockwise. To reduce the holding pressure, turn the regulator Counter-clockwise. Be care not to fully unscrew the regulator. It is spring loaded and will “pop” out. Tighten the locking nut # (3). The standard height of the presser foot regulator # (1) from the casting to the top of the regulator screw is about 5/8” to 3/4”. 12. For Leather Stitching: The Feed Dog of the TORO-3000 is smooth, (without teeth). The TORO-4000 R and TORO 4000 P use a different system without a feed dog. To adjust the height of the feed dog: Either of the two methods are possible. 1. Open the bobbin case to reveal the feed dog attaching screw. 2. Loosen the screw #(4) and move the feed dog up or down as required. 3. Re-tighten the fed dog attaching screw. OR a second method is to do the following: 3. 4. 5. Loosen and remove the two screws and small springs #(1) that hold the oscillating shuttle/bobbin case in place. Remove the shuttle race and bobbin case from the casting and reveal the feed dog attaching screw. Remove the Feed Dog attaching screw and Feed Dog to install any of the following except the standard needle plate. Slotted Needle Plate (A) #43332 Stirrup Needle Plate (B) #43333 Holster Needle Plate (C) #43334 Standard Needle Plate (D) #43337 OSCILLATING SHUTTLE HOOK SPACER #1thru 5 8. 25. 6. Hook Driving Shaft Components 13. WALKING FOOT HEIGHT ADJUSTMENT To Adjust the height of the walking feet: F. H. G. E. A 1. Loosen the nut #(6) and move the lever #(7) up to Decrease the walking foot height. (B) 2. Move the lever #(7) down in slotted bracket #(8) to Increase the walking foot height. (A) 3. Tighten the nut #(6) after completing the adjustment. B C D 14. ADJUSTING THE NEEDLE-TO-SHUTTLE RELATIONSHIP Normal timing adjustment of the shuttle hook. 1. Turn the handwheel counter-clockwise until the oscillating shuttle hook is positioned to the fullest most left travel. 2. The point of the oscillating shuttle hook (shuttle or hook) Should then protrude exactly 1 mm or a little more than 1/32” beyond the end of the shuttle race casting #(B). Shuttle Hook Parts A. GS 184 Locking Set Screw. B. GS 164 Thread Tension Adjusting Screw. C. GW 113 Thread Tension Spring. D. GW 114 Bobbin Push-out Spring. E. GN 115 Bobbin Case Body. F. GN 112 Shuttle Body. G. GW 112 Bobbin Case Opening Spring. H. GN 114 Bobbin Case Body Latch. I. GS 120 Bobbin Case Body Latch Screw. To Adjust the position of the oscillating shuttle hook. 1. Rotate open the front inspection plate cover; located under the stitch length regulator on the front of the machine casting. 2. Insert an allen wrench into the adjusting screw #(2). Loosen the screw slightly and move the shuttle hook forward or back to align the shuttle hook correctly. 3. Remember to firmly tighten the screw #(2) when you have accomplished the adjustment. To adjust the needle bar height and timing relationship: 1. Turn the handwheel counter-clockwise until the needle is at its lowest position (bottom dead center). 2. Continue turning the handwheel and raise the needle exactly 5 mm or 3/16” up from “bottom dead center”. The point of the shuttle hook #(3) should be exactly bisecting the center of the needle, approximately in the center of the needle scarf. 3. At this point, when the stitch length is set to “0”, the bottom of the needle bar should be exactly 26.4 mm above the top surface of the standard needle plate #(D). 9. 24. 5. Upper Rear Inspection Cover The above adjustments are for stitching normal fabrics and do not apply to stitching heavy leathers for the TORO-3000 or 4000 R. Leather machines are specially adjusted for each application. The standard adjustments are only a starting point. Set the needle bar height on the TORO-3000, 4000 R or 4000 P as #(A). The point of the shuttle hook is 5 mm above the eye of the needle on the rise of the needle. 10. 23. 22. 11. 4. OUTSIDE PRESSER FOOT WITH TEETH FOR FABRICS A. B. C. D. E. F. 15. The above adjustments are for stitching normal fabrics and do not apply to stitching heavy leathers for the TORO-3000 or 4000 R. Leather machines are specially adjusted for each application. The standard adjustments are only a starting point. 12. 43423 43424 43425 43426 43405 43406 Center Grover Leather Presser Foot Left Side Leather Presser Foot Right Side Leather Presser Foot Double Toe Leather Presser Foot Double Toe Presser Foot with Teeth for Fabric or Webbing (aka Blanket) Center Presser Foot with Teeth for Fabric or Webbing (aka Blanket) A. B. C. D. 21. E. F. 4. PRESSER BAR COMPONENTS 16. 1. The thread breaks or tends to fray and then break. Skipped Stitches 1. A burr, cut, ruffness, or other imperfection was created on the needle plate, shuttle, shuttle race or presser foot by a broken or damaged needle. 2. Needle thread tension excessively tight. 3. Poor quality or incorrect thread size. 4. Machine is out of synchronization. 5. Excessive needle heat build-up. 1. 2. 3. 4. 5. 6. 7. 8. 3. Improper thread tension, irregular looking stitches, or excessive bobbin thread tension. 20. The needle is too far away from the shuttle hook point. The shuttle hook timing is set too fast or too slow in relationship to the needle. The leather or fabric “jumps” up with the Needle. (called flagging) Bent needle, dull point, or improper needle diameter size for the leather sewn. The check spring tension is too hard or too soft. The check spring travel is too long or too short for the fabric sewn. The needle has overheated, lost temper or is dull or worn out. Excessive thread fraying or wear. 1. Clean off and remove the flaw with a fine India stone or other abrasive. 2. Loosen the upper thread tension. 3. Always use a good quality pre-lubricated left twist sewing thread like “Rice” brand threads. 4. Check and if necessary re-time the machine. 5. Add an additional silicone thread lubrication system to your machine. 6. Replace your needle with a new “Schmetz” brand quality sewing needle. 1. See Chapter 14, Adjusting the Needle-to-Shuttle Relationship. 2. See Chapter 14, Adjusting the Needle-to-Shuttle Relationship. 3. Tighten the presser bar adjuster screw. 4. Replace with a new and correctly sized needle. 5. Decrease the check tension. 6. Adjust the check spring travel for the weight of the fabric or leather being sewn. 7. Replace the needle with a Schmetz brand #794 Needle Inferior quality needles cause problems. 8. Replace poor quality thread with RICE or Artisan “Premium Performance Leather Stitching Thread” from Artisan Sewing Supplies. 888 838 1408 1. Worn out thread guides. 2. The bobbin jams. 1. 2. 3. Weak bobbin thread tension. 4. Bobbin thread is wound to tightly. 5. Bobbin thread showing on top of fabric or leather 6. Loops showing on the bottom of the leather or Fabric. 3. 4. 5. 6. Repair the guide or replace with a new thread guide. The bobbin may be bent or otherwise damaged. Replace the bobbin. Tighten the bobbin thread tension, Chapter 9 Loosen the tension on the bobbin winder Loosen the Needle Thread Tension, Chapter 9 Tighten the needle thread tension, Chapter 9 4. Excessive Thread Abrasion 1. Worn out or Incorrect needle size 1. Replace the Needle 5. Stitches are out of line or do not track straight. 1. 2. Incorrect point for the leather being sewn. Dull or blunt needle point. 1. Replace your needle with one with the correct cutting point for the type of leather being sewn. Read and understand the Schmetz Leather Needle Pamphlet available from Artisan 888 838 1408 6. The bobbin thread tension will not adjust. 1. Lint or debris trapped under the bobbin case spring tension. 1. Remove the bobbin case spring and clean out the Debris. 7. The v-belt from the SR-2 speed controller is slipping or the hand wheel does not turn when the motor is fully engaged 1. 2. 3. The v-belt has stretched. The v–belt is worn out The machine is jammed. 1. Lower the SR-2 Speed controller. Make the belt tension tighter. Replace the v– belt Clean out the foreign blockage. Perhaps a small piece of thread is trapped in the shuttle raceway. When in doubt…. Call artisanu for Help! 888-838 1408 2. 3. 1/4” to 3/8” 13. SR-2 Pulley SUGGESTED REFERENCE GUIDE FOR artisan TORO 3000, 4000 R, 4000 P u LEATHER STITCHING MACHINES Recommended Schmetz brand Needle #794 1. Sewing on Thin Leathers of less than 8 oz. or up to1/8”: Use Schmetz brand Needles number 794 D or S, NM:160 Size 23, Canu 53:20MF1. “D” is a Triangle Leather Point and “S” is a Spear Point for leather. Under normal conditions the “D” points will last longer and the “S” point needles have a shorter life span but will make a straighter stitch. We recommend using thread sizes 69, 138, or 207. Size 277 might be to heavy. The same size thread as in the needle or one size smaller for the bobbin thread will give you more yield from the bobbin. 2. Stitching Leathers from 8 oz. to 12 oz or from 1/8” to 3/16”: Use Schmetz brand Needles number 794 D or S, NM:160 or 180, Size 23 or 24, Canu 53:20MF1. “D” is a Triangle Leather Point and “S” is a Spear Point for leather. We recommend using thread sizes 138, 207, or 277 and either the same size thread as in the needle or one or two sizes smaller thread in bobbin is recommended. 3. Leather from 12 oz to 16 oz., 3/16'” to 5/16”: Use Schmetz brand Needles number 794 D or S, NM:180 or 200, Size 24 or 25, Canu 53:20MF1. We recommend using thread sizes 207, 277, or 346 and either same size thread as in the needle or one or two sizes smaller thread in bobbin for additional yield. 4. When stitching multiple plies of Leather beyond 7/16,” we recommend the use of Schmetz brand 794 “D” point needle of at least a diameter of #25 (200). Any size thread may be used. However, the use of 207, 277, or 346 is recommended in the needle and one or two sizes smaller thread in the bobbin. NOTE: Your Bobbin Thread tension will require readjustment when using smaller thread diameters such as size 69 or 138 in the bobbin. SADDLE SKIRTING: 794 D #25 (200) Needle Thread 277 or 346 in the Needle 138, 207, OR 277 in the Bobbin HARNESS: 794 D #24 (180) or #25 (200) Needle Thread 207, 277, or 346 in the Needle 138, 207 or 277 in the Bobbin HOLSTERS: 794 D #25 (200) NEEDLE Thread 207 or 277 in the Needle 138, 207 or 277 in the Bobbin SHEATHS: 794 D #24 (180) or #25 (200) Needle Thread 207, 277, or 346 in the Needle 138, 207, 277 in the Bobbin CHAPS: 794 S #24 (180) Needle 138 or 207 in the Needle 138 or 207 in the Bobbin BELTS: 794 D #24 (180) Needle Thread 138 or 207 in the Needle 138 or 207 in the Bobbin PURSES: 794 D #24 (180) Needle 138 or 207 in the Needle 138 or 207 in the Bobbin MENUS, CHECKBOOKS, BOOK JACKETS, etc Round Point Needles 794 #22 (140) Thread 69 or 138 in the Needle and Bobbin. NOTE: Change your needle to a non leather point needle when stitching fabrics other than leather. artisan recommends using a Schmetz brand #794 size 22, 23, or 24 needle on Canvas, Upholstery Fabrics, or Webbing. For Stitching “Bio-Plastics” use a needle 2 diameters larger than for leather. You must replace the leather presser feet, feed dog and needle plate with a “Blanket Set” for stitching on other than leather. 14. 19. Spare Parts List artisan u TORO-3000 and 69 A. TORO-4000 18. 15. 2. MAIN SHAFT COMPONENTS 1. FRAME AND COVER COMPONENTS A. 43332 Slotted B. 43333 Stirrup C. 43334 Holster NEEDLE PLATES FOR LEATHER STITCHING 16. 17.