User manual LERVIA KH4000 AUTOMATIC FREE-ARM SEWING MACHINE

[. . . ] IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 1 ID Nr. : KH4000-05/05-V4 Kompernaß GmbH Burgstrasse 21 · D-44867 Bochum www. kompernass. com IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 2 KH4000 Automatic Free-Arm Sewing Machine Operating instructions IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 3 IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 4 IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 5 IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 6 IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 7 IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 8 y q w er t u i o a s 2% 2$ 2# 2@ 2!f g j d h 2) ; l k IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 3 Lervia KH 4000 Lervia Automatic Free-Arm Sewing Machine 1. Threading a) b) c) d) e) a) b) c) a) b) c) d) e) Threading the lower bobbin Threading the lower thread Threading the upper thread Retrieving the lower thread Threading with 2 needles Changing needles Changing the stitch plate Changing the snap-on foot Setting Setting Setting Setting Setting the the the the the upper thread tension lower thread tension presser foot pressure stitch width stitch length 4 4 4 4 5 6 6 7 7 8 11 12 12 11. Sewing a) b) c) d) e) f) g) h) i) j) k) l) m) n) o) p) q) r) s) t) u) v) w) a) b) c) d) e) f) To place the material To start a seam To finish off a seam Guiding the material Changing the sewing direction Selecting a stitch pattern Straight stitch Zigzag Stitch pattern table Blind hem Material-Thread-Needle Table Seam guide Overcast stitch Stretch seams Sewing buttonholes Buttonhole table Sewing on buttons "Edge-to-edge" sewing Decorative stitches Sewing a zipper Sewing with the twin needle Embroidery Thread cutter Clean the gripper area Clean the feeder Clean the casing Oil the gripper track What else needs oiling? [. . . ] Settings r The tension of the upper and lower thread is set correctly if the twining of the two threads cannot be seen on the top or bottom sides of the material after sewing. If even one of the two tensions is not set correctly, an unclean seam will result. The stitches will then lie flat on the material. a) Setting the upper thread tension · You can select the strength of the upper thread tension by turning the selector wheel for the upper thread tension r. - too tight (higher setting), then the upper thread is loose and the material is being 'sewed' with the lower thread only. - too loose (lower setting), then the lower thread is loose and the material is being 'sewed' with the upper thread only. The upper thread tension is normally between 4-6. b) Setting the lower thread tension · You can set the strength of the lower thread tension by turning the screw 18f on the bobbin case l. Be certain not to turn the screw 18f completely out of the bobbin case l. · The lower thread tension is set correctly if the bobbin case l can be turned slowly and evenly ("fall down test"). l - 15 - IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 16 Lervia KH 4000 c) Setting the presser foot pressure w Here you can set the pressure with which the material is pressed onto the stitch plate. "0" if no pressure is to be applied, for example for darning with free-hand stitches "1" for light fabrics (curtains) "2" for average fabrics (normal) "3" for heavy fabrics (jeans). d) Setting the stitch width Here you can set the width of seam for zigzag patterns. · Turn the handwheel s in an anti-clockwise direction to fully raise the needle. y s · Select a stitch width from 0 - 5 on the selector wheel y. . . "0" straight "1" narrow "5" wide Important: When the twin needle is inserted, the selector wheel may not be set any higher than "3". A higher setting will cause the twin needle to break! d e) Setting the stitch length Here you can set how far the material is to be transported during sewing. · Select the stitch length from 0 - 4 on the selector wheel d. . . "1" short "4" long - 16 - IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 17 Lervia KH 4000 11. Sewing s If you have placed the thread and everything is set correctly, as described in the previous chapters: a) To place the material j · Turn the handwheel s in an anti-clockwise direction to fully raise the needle. · Place the material under the sewing foot and lower the sewing foot back down. ; b) To start a seam · Hold the two thread ends run to the back " firmly with the left hand. " · Step very carefully on the foot switch ­ just enough to do the first 3-4 sewing motions. · Once the first sewing motions have been performed successfully, hold the lever for backward operation 2# pressed briefly . . . · and press again on the foot switch ­ just until you have returned to the starting point of the seam. When you now want to continue with the seam from that point, it is held firmly by several overstitches. 2# c) To finish off a seam Sew back and forth at the end of the seam using the reverse lever, as at the start of the seam. The end of the seam is now also held firmly. - 17 - IB_SewingMachine_UK 06. 07. 2006 10:59 Uhr Seite 18 Lervia KH 4000 d) Guiding the material · Only guide normal materials as shown in the diagram. To prevent this, lay a thin paper under the material and sew this in with the material. When you have finished sewing, carefully pull the paper away from the material; the result is a very clean stitch. · For stretchable materials, it can be necessary to guide the material in before and after the sewing foot to prevent it from pulling in. e) Changing the sewing direction You have arrived at a certain point, and you now want to continue sewing in a different direction. [. . . ] · Do not use cleansers or abrasive materials ­ the casing could be scratched. · The parts of the appliance may never be submerged in water or other liquids!Excessive oil on the working parts can soil the thread and your fabrics. · Drip 2-3 drops of oil into the narrow gap " between the gripper and the gripper track . . . [. . . ]