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CV_KH4300_33077_LB6.qxd 02.06.2009 16:29 Uhr Seite 1
Overlock Sewing Machine
6
KH 4300
Overlock Sewing Machine
Operating instructions
KOMPERNASS GMBH · BURGSTRASSE 21 · D-44867 BOCHUM
www.kompernass.com
ID-Nr.: KH4300-03/09-V3
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CV_KH4300_33077_LB6.qxd 02.06.2009 16:29 Uhr Seite 5 i o p a s d f KH 4300 1 u z t r 2 e w q 3 4 0 g h j k 5 9 6 8 7
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 1 CONTENT PAGE Intended Usage 3 Safety instructions 3 Technical Data 4 Items supplied 4 Description of the appliance 5 Preparation 5 Adjusting the thread tree .................................................................................................................5 Bobbin supports................................................................................................................................5 Bobbin caps................
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 2 Close and broad sewing with three threads 16 Sewing freehanded 16 Adjusting the sewing foot 16 Hemstitch and edging 17 Sewing hemstitch 17 Sewing narrow edging 17 Differential feed motion 18 Manner of operation .....................................................................................................................18 Setting the differential feed motion ............................................................................
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 3 OVERLOCK SEWING • Arrange for defective power plugs and/or cables MACHINE KH 4300 to be replaced at once by qualified technicians or our Customer Service Department. • This appliance is not intended for use by indivi- Intended Usage duals (including children) with restricted physical, physio-logical or intellectual abilities or deficien- This overlock sewing machine is intended ... ces in experience and/or knowledge unless they – for use as
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 4 Technical Data Items supplied Number of threads 4 or 3 Overlock Sewing Machine Number of needles 2 or 1 Oil Sewing speed 1100 Revs/min Waste container Stitch width 6 mm with 4 threads Accessory box 6 mm or 4 mm with 3 Operating instructions threads Stitch length 1 – 5 mm Replacement Needles HA x 1 Nr. 11-14 or (upper blade) 130/705 Nr. 75-90 Power consumption : Motor: 90 W Bulb: 15 W 2 Needles Nr. 11 Total: 105 W 4 Needles Nr. 14 Rated v
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 5 Description of the appliance Preparation 1 Thread tree Place the overlock sewing machine on a stable and 2 Thread tension selector (lower looper) level surface. Ensure there is sufficient illumination at 3 Spool support your workplace. 4 Cold air intake 5 Connection Footpedal/Power supply Adjusting the thread tree 6 Handwheel Completely withdraw the thread tree 1 before 7 Power switch (On/Off switch) threading. 8 Front flap Turn the thread
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 6 Bobbin caps Safety switch If using non-industrial thread bobbins, remove the This machine is fitted with a micro safety switch. You bobbin supports and place the bobbin caps on the cannot start the machine if the front flap 8 is open. thread bobbins. Close the front flap 8 before you start to sew. Fitting the waste container The waste container k collects remnants during sewing, so that your workplace stays tidy. Place the waste container
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 7 Correct threading is important, so that the stitches are not irregular and that the yarn does not break. On the inner side of the front flap 8 there is a guide to threading. Additionally, the thread guides are marked in various colours. In the accessory box you will find pincers, the use of which helps make threading easier. Threading takes place in this sequence: 1. First step: Upper looper s (green) 2. Second step: Lower looper d (blue)
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 8 Thread tension selector 2 e 4. Pull the end of the thread about 10 cm (4”) out from the looper eyelet. 5. Lift the sewing foot o and slide the thread under it; then lower the sewing foot o back down. The lever for lifting and lowering the sewing foot o Thread routing on from the thread guide plate 8 is located at the rear of the machine, above the sewing lever rod system. Threading yarns into the needle For simplification, the individual s
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 9 Note: The yarn must lie correctly between the two discs of the thread tension selector. Thread tension selector q w 4. Pull the end of the thread about 10 cm (4“ ) out from the eyes of the needles. Lift the sewing foot o and slide the thread under it; then lower the sewing foot o back down. The lever for lifting and lowering the sewing foot o is located at the rear of the machine, above the sewing lever rod system. Thread routing on from
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blue green yellow red IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 10 Setting the thread tension The thread tension required is variable, being depen- dant itself on the type and thickness of the thread and fabric. Check the seams and then adjust the appropriate thread tension on the machine. Tensioning the thread When you turn the tensioning device to a lower Lay the material for a trial run under the sewing number, the tension reduces. foot o and slowly start to sew. When you turn the
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 11 Adjusting thread tension on the needle Adjusting thread tension on the looper threads threads The tread tension on the left needle The lower looper thread is firm and/or the is too loose. upper looper thread is loose. Adjust tension on the left thread. Loosen the tension of the lower looper thread and/or tighten the upper looper thread. The tread tension on the right needle is too loose. The upper looper thread is firm and/or the Adju
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 12 Overview of the machine adjustments The most appropriate thread tension adjustment for one type of material is not necessarily the ideal adjust- ment for a different material. The thread tensions required are dictated by the pliability and thickness of the material as well as the type and thickness of the thread. When necessary, adjust thread tensions as per this table: Thread tension Fabric Thread Needles Stitch length adjustment Light: H
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 13 Changing threads Setting the stitch length (binding together) The stitch length can be adjusted in nine steps, from With the following procedure, changing threads is 1.0 to 5.0 mm. Almost all overlock work is quite simple: carried out with a stitch length of 2.5 – 3.5 mm. Turn on the inner adjustment wheel for stitch length 1. Cut the yarn above the spindle and knot the z to adjust the stitch length: ends of the new and the old thread tog
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 14 Setting the cutting width Exchanging needles The appropriate cutting width is, from material to material, variable. Each time test the seams and Attention! adjust the cutting width as follows: Before exchanging the needles, remove the power 1. Turn the handwheel 6 towards yourself until the plug. This prevents an unintended starting of the ma- needles are in the lowest position. chine. If you do not, you run a risk of serious injury! 2. Op
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 15 Replacing bulbs Note: The lower blade p is manufactured from a special material and normally does not need to be exchanged. Risk of electric shock Should it at some time become nonetheless damaged, When changing bulbs, ALWAYS remove the plug j please make contact with our Customer Services. from the mains power socket! To exchange the upper blade a when it has become 1. Remove the small round cover with a needle or blunt: something similar
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 16 Close and broad sewing with Sewing freehanded three threads Freehand operation is excellently suited for the When sewing with this machine you can adjust from sewing of trouser legs, sleeves and cuffs etc. four to three threads. Remove either the left or the right needle (see section Remove the arm support 9, as shown in the illustra- "Exchanging needles") and the appropriate thread. tion, to change from flatbed to free arm operation. Th
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 17 Sewing hemstitch With the sewing of hemstitches the loops of the upper looper thread should be pulled back to the underside of the material. This is achieved by adjustment of the thread tension, as described in the section "Setting the thread tension". Pin lower Hemstitch and edging looper thread For these two tasks proceed as follows: 1. In the section "Adjusting the sewing foot" reread the instructions for adjusting the sewing foot o. up
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IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 18 Important: If necessary, adjust the stitching length Differential feed motion and cutting width. With the differential feed motion uneven seams are Hem stitching avoided in knitted materials, as well as the slippage of textile positions. Additionally, the seams cause no wrinkles in very light materials. Manner of operation The machine has two sets of toothed rack feeders, one to the front and one to the rear. Both sets move independant of
