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.
CV_KH4300_33077_LB6.qxd 02.06.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr CONTENT Seite 1 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 ............
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 .........................................................................
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr OVERLOCK SEWING MACHINE KH 4300 Seite 3 • Arrange for defective power plugs and/or cables to be replaced at once by qualified technicians or our Customer Service Department.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Technical Data Number of threads Number of needles Sewing speed Stitch width Items supplied Rated voltage: Protection class: 4 or 3 2 or 1 1100 Revs/min 6 mm with 4 threads 6 mm or 4 mm with 3 threads 1 – 5 mm HA x 1 Nr. 11-14 or 130/705 Nr.
IB_KH4300_33077_LB6.qxd 02.06.
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 bobbin supports and place the bobbin caps on the thread bobbins. This machine is fitted with a micro safety switch. You cannot start the machine if the front flap 8 is open. 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.
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) 3.
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 is located at the rear of the machine, above the sewing lever rod system.
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.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 10 Setting the thread tension The thread tension required is variable, being dependant itself on the type and thickness of the thread and fabric. Check the seams and then adjust the appropriate thread tension on the machine. Lay the material for a trial run under the sewing foot o and slowly start to sew. The material will be automatically fed through. Tensioning the thread When you turn the tensioning device to a lower number, the tension reduces.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Adjusting thread tension on the needle threads Seite 11 Adjusting thread tension on the looper threads The tread tension on the left needle is too loose. Adjust tension on the left thread. The lower looper thread is firm and/or the upper looper thread is loose. 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. Adjust tension on the right thread.
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 adjustment 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.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Changing threads (binding together) With the following procedure, changing threads is quite simple: 1. Cut the yarn above the spindle and knot the ends of the new and the old thread together. 2. Place the thread tension selector 2/q/w/e at "0" and lift the sewing foot o. 3. Pull on the other end of the yarn until the knot passes under the sewing foot o. 4.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Setting the cutting width Exchanging needles The appropriate cutting width is, from material to material, variable. Each time test the seams and adjust the cutting width as follows: 1. Turn the handwheel 6 towards yourself until the needles are in the lowest position. 2. Open the front flap 8. 3. Press the lever PUSH f. The free arm 0 lowers itself and the adjustment wheel for the cutting width i can be seen. 4.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Replacing bulbs Risk of electric shock When changing bulbs, ALWAYS remove the plug j from the mains power socket! 1. Remove the small round cover with a needle or something similar. 2. Unscrew the screw completely. 3. Remove the lamp cover. Seite 15 Note: The lower blade p is manufactured from a special material and normally does not need to be exchanged. Should it at some time become nonetheless damaged, please make contact with our Customer Services.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Close and broad sewing with three threads Seite 16 Sewing freehanded When sewing with this machine you can adjust from four to three threads. Remove either the left or the right needle (see section "Exchanging needles") and the appropriate thread. The machine is now ready for sewing with three threads. Freehand operation is excellently suited for the sewing of trouser legs, sleeves and cuffs etc.
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 looper thread Hemstitch and edging For these two tasks proceed as follows: 1. In the section "Adjusting the sewing foot" reread the instructions for adjusting the sewing foot o. 2.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Important: If necessary, adjust the stitching length and cutting width. Hem stitching Seite 18 Differential feed motion With the differential feed motion uneven seams are 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 Edging The machine has two sets of toothed rack feeders, one to the front and one to the rear.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Uneven material edges and smoothness To obtain precise flat edges when sewing elasticated materials, the front toothed rack feeders must push forward faster than the rear ones, so that the material is not stretched. For smoothness the front toothed rack feeders must also work faster than the rear ones. With a larger stitching length the material stays easily smooth. Place the differential feed motion at "G".
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 20 Troubleshooting Problem Needles break Cause Solution • Needles are bent, blunt or damaged at the points. • Fit new needles. • Needles are not correctly inserted. • Insert the needles into the retainers correctly. • You have pulled the material too • Carefully guide the material with heftily. both hands. • Yarn has not been correctly threaded. • Thread the yarn correctly. • Thread tension is too high. • Reduce the thread tension.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Cleaning and care Seite 21 Disposal Do not dispose of the appliance in your normal domestic waste. This product is subject to the provisions of European Directive 2002/96/EC. Attention: ALWAYS remove the plug j from the mains power socket before cleaning or lubricating the machine. Otherwise there is the risk of you receiving an electric shock! Dispose of the appliance through an approved disposal centre or at your community waste facility.
IB_KH4300_33077_LB6.qxd 02.06.2009 13:40 Uhr Seite 22 Warranty and Service Importer This appliance comes with a 3 year warranty Purchase date. This appliance has been manufactured with care and meticulously examined before delivery. Please retain your receipt as proof of purchase. In the case of a warranty claim, please make contact by telephone with our service department. Only in this way can a post-free despatch for your goods be assured.
