hobby lock MADE FOR PFAFF OPERATING I NSTRUCTION I I I HL-604
CONTENTS i.Parts name 1 2. Preparation and running the machine 2 3. Notes on the motor 2 4. Drive belt tension 3 5. Lubrication 3 6. Opening and closing the looper cover 3 7. Operating the machine 4 Threading procedure 4 8. Test sewing 5 9. Thread tension and adjustment 6 10. Main points when sewing 7 11. Presser toot pressure 7 12.
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2. Preparation and running the machine I. Preparation This machine must only be used on a perfectly flat and horizontal surface or purpose_built sewing machine table. 2. Fitting the motor controller insert the controller connector into the First, connector socket on the side of the machine as shown in the illustration, then connect the plug to a power source. Disconnect the niachine from the power source when it is not in use. Do not place obtects on top of the controller pedal. Control er 3.
4. Drive belt tension - . Check that the belt tension is correct. The belt sted so that when the ad u should be 1 pressed is about with the center forefinger, it flexes l 0mm. 5. Lubrication Get into the habit of always lightly oiling the points indicated before using the machine. The bushings and other important parts con tain special materials, so pour the sewing ma chine oil only I - 2 times a month. When oiling the machine apply only one or two drops of oil each time. 6.
7. Operating the machine I. Precautions When Threading If the machine is mis-threaded it is impossible to obtain a well formed seam. Refer to the threading diagram and thread the machine correctly. Always thread the looper threads first. Make sure that the thread passes correctly between the thread tension regulating discs. Use tweezers to make threading easier. Threading procedure [Overlock stitch looper thread sequence. I. Stand thread guide —.2.
3 Thread the overleck stitch needle thread. 4 Thread the double chainstitch needle thread Leave about 5cm of thread protruding from the needle eyelets. synthetic threads are used, remove the thread from the tension spring and loosen the thread tension regulator before sewing. C— 3 Overleck stitch needle threading sequence. I. Stand thread guide 2. Front cover thread —. guide (A) —. 3. Thread tension regulator 5. Thread guide (C) _..:7• Needle thread guide—. Thread guide (D) 4. tension spring —.
9. Thread tension and adjustment The correct thread tension varies depending on the type of cloth and the type and thickness of thread. The correct setting should always be obtained by watching the seam and making the appropriate adjustments. • Correct thread tension I, 2 and obtain the correct Refer to Figs. = tenson setting. Ii Correct thread balance for the double c= If the double chainstitch needle thread chainstitch. is too loose then the seam will look like this.
10. Main points when sewing Always insert the cloth fully under the presser toot at the start of sewing. This applies both when the machine is first threaded and when ç is re-threaded after thread breakages it r *& Run the machine slowly for the first one or two stitches. Do Use your hand only to guide cloth. pull it forwards or tug it. not The cloth is fed auto matically so this is not necessary. I .
12. Types of seam and their applications Three following stitch types are obtained by a Simple operation. I . Safety stitch When all 4 threads are used, a safety stitch can be obtained. This may he used for a variety of fabrics varying from lightweight to heavy weight. APPLICATIONS Svie closing and sleeve at taching on shirts, blouses, etc. 2. Double Chainstitch When the double chainstitch needle and looper threads are used an attractive double chainstitch seam can be obtained. .
Disengaging the overlock stitch looper .To disengage the overlock stitch hoper Open the hoper cover and turn the pufley by hand. When the needle is in its lowest position pull the looper engaging lever down wards. The lever is latched by a spring so be sure to pull it down firmly. .When this is done remove both the overlook stitch looper and needle thread. .To re engage the averlock stitch looper. Turn the pulley by hand aid when the needle is in its owest position lift the lever upwards.
3. Overlook stitch seam Overlock stitching can be obtained by simply using only the overlook stitch needle and looper thread. Before starting always check the following: The knife should be set in its normal position. 2. The looper engaging lever should be in its operating position. 3. The upper knife guard should be set oorrcetly in positkn. 13. Adjusting stitch length .
14. Replacing needles •:DBxl recommended needles are for machine. These are suitable for most types this of C sewing. Aitfiough the (-orrerA nel-’dle szo depenas on the type of fabric and thickness of thread which 4 you are using, needles are the recom mendable size. Depending on your sewing conditions however, ally of the needles I 14 - nay be used. 1- L Removing needles Turn the pu’ley clockwise pn the direction of the arrow) by narid arid move the needles to their highest position.
(r. * Replacing knife Push the upper knife holder to the right and insert the knife into it from above. Making sure that 1.0mm the cutting edge faces to the left, tighten it lightly. Next,turn the pulley move the knife to ts lowest position and adlust the upper knife so that the overlap between the front of the upper knife Tighten the and the lower knife is I. 0 mm. upper knife guwie screw securely. U 2.
16. Replacing the drivemotor carbon brushes The carbon brushes must be replaced when they wear down. • Symptoms of worn brushes I . // They become noisy. 2 The motor will not turn at all 3. The motor emits a noise but will not turn. . Carbon brush cap 4 There are more sparks than usual. . 2. Replacement of brushes Remove motor from machine. 2. Loosen the 2 brush caps. 3. Remove the carbon brush springs and the uld carbon brushes. 4. Insert the new carbon brushes and the carbon brush springs.
17 Causes of poor sewing and its solution I his machne has Cccii designed to be as easy to use There is as possible. nen 10 stirieits. al u tacIt 1 br can be cured Breakdowns sirilear to the ones below occur because of simple adlustrnent errors. They ustments as described below.
18 Variation of weight of fabric, threads and stitch length Weight of Operation Organdies, tight tricots, Chainstitch fabric traffeta. linings, silk, Light etc. Cotton, tricot, linen. satin, dress fabrics, Medium etc. Tweed, overcoat heavy outerwear fabrics, etc.
21. Accessories Screwdriver Accessories case 1 Screwdriver (hexagonal head) Needles (DBxI) Tweezers Oiler (Contained with 50cc.
