KONWA KW-505 Скачать руководство пользователя страница 6

8. CATCHING BOBBIN THREAD 

 
Hold the end of the upper thread with the left hand, and with your right hand turn gently 
the  balance  wheel  towards  you  till  the  needle  comes  down  and  up  again  to  its  highest 
position.  Pull  the  end  of  the  thread  in  your  left  hand  gently,  and  it  will  bring  up  the 
bobbin thread (Fig. 13). Then lay the ends of both then threads under the presser foot but 
a  bit  away  from  you  (Fig.  14).  Place  the  material  under  it  and  lower  the  presser  foot, 
thereafter start sewing.   
 
 
 
 
 
 
 
 
 

 

 

 Fig. 13 

 

 

          Fig. 14 

 

9. REGULATING TENSION OF THE UPPER AND LOWER THREADS 

 
If the tension of the both upper and lower threads is normal the result will be perfect and 
the two threads will cross each other just inside the sewing material (Fig. 15) 
 
 
 

     Fig. 15 

 

 

       Fig. 16 

 

 

        Fig. 17 

 
But if the upper thread is too tight or the lower one too loose, they will cross each other 
on  the  upper  surface  of  the  fabric  (Fig.  16).  In  this  case,  you  should  either  loosen  the 
upper thread or tighten the lower one. 
 
If the upper thread is too loose or the lower one too tense, so that they cross one another 
on the under side of the fabric (Fig. 17), you will have to tighten the upper thread or loose 
the lower one. 
 
Sometimes although the threads are locked inside the fabric, floating stitches appear, that 
means both the upper and lower threads are too loose. For correcting this, both upper and 
lower threads should be tightened. 
 
Sometimes although the cross point is right inside the sewing material, the material may 
wrinkle and the thread is liable to break; for the upper and lower threads are still too tight. 
So it is necessary to loosen them both. 
 
 
 

Содержание KW-505

Страница 1: ...KONWA KW 505 DOMESTIC SEWING MACHINE INSTRUCTION MANUAL PARTS LIST ...

Страница 2: ...material Furthermore this machine is also furnished with an adjustable drop feed mechanism This gives the user the option to regulate the drop feed low or high when sewing thick or thin materials The KONWA Model KW 505 is also fitted with thread take up cam and oscillating shuttle hook by which the under and upper thread are locked to form excellent stitches KONWA household sewing machine Model KW...

Страница 3: ...OBBIN Loosen the stop motion screw Fix a reel of thread onto the spool pin on the machine bed After that pass the free end of thread through the tension disc Fig 3 1 and then pass it through one of the holes of the bobbin Press the bobbin onto the winder spindle taking care to see that the small pin in the spindle engages the notch in the right disc of the bobbin Then press down the winder adjusti...

Страница 4: ... Fig 6 Allow the free end of thread t pass through the slot and under the tension spring leaf until it enters into the delivery eye Leaving the end of thread about 7cm to hang free Fig 8 Fig 6 Fig 7 Fig 8 5 REPLACING BOBBIN CASE INTO THE SHUTTLE RACE Turn the balance wheel towards you until the needle bar is raised to its highest Draw opens the slid Hold up the bobbin case by the latch place it on...

Страница 5: ...u until the needle bar is raised to its highest Place a real of thread on the spool pin on the machine arm Pass the end of thread into the notch at right top of the faceplate Fig 12 1 down and through the tension disc Fig 12 2 and fender level Fig 12 3 from back to front into the loop of the thread take up spring Fig 12 4 up from back to front through the hole of the take up lever Fig 12 5 down th...

Страница 6: ...the sewing material Fig 15 Fig 15 Fig 16 Fig 17 But if the upper thread is too tight or the lower one too loose they will cross each other on the upper surface of the fabric Fig 16 In this case you should either loosen the upper thread or tighten the lower one If the upper thread is too loose or the lower one too tense so that they cross one another on the under side of the fabric Fig 17 you will ...

Страница 7: ...itches the smaller the number the shorter the stitches Fig 20 The stitch regulator of Model KW 505 has also the function of reverse feeding that enables you to seal stitches without the trouble of reversing the material When you want to seal stitches during sewing just move the stitch shifter Fig 20 1 over the median line then the direction of the drop feed can be changed Regulating stitch length ...

Страница 8: ...ng the drop feed knob When the thin fabric being sewn the feed dog should be set lower Turn the knob counter clockwise in order to decrease the height and clockwise to increase the height Fig 23 Fig 23 13 EMBROIDERING 1 Change the needle for one of No 9 11 2 Move the stitch shifter to the median line on the stitch indicator 3 Pull up the presser foot lever loosen the presser foot screw and take of...

Страница 9: ...wing direction then work the treadle to enable the belt to cling to the trough clamp at the rim of the treadle wheel A couple of revolutions of the treadle wheel will bring the belt into place Fig 26 15 THE USAGE OF THE HAND ATTACHMENT SET When a hand attachment is fixed to the sewing machine it is operated by hand Being portable it can be operated on any table It is best suited for household and ...

Страница 10: ...hand Be careful that the hook tip should point downwards and the hook should be lightly pulled out of the center of the circle of the shuttle race Fig 28 1 If the fluff accumulated in the shuttle retaining ring Fig 28 2 1 the ring should be removed before cleaning Remove the ring spring Fig 28 2 3 by taking out the screw Fig 28 2 2 with a screwdriver After cleaning put the ring bevel face outwards...

Страница 11: ...rops for each spot see Fig 29 30 31 32 33 is sufficient Excessive oiling is not advisable as this will stain the material to be sewn Fig 30 Fig 31 Fig 32 Fig 33 Fig 29 18 CHART SHOWING DIRREFENT SORTS OF NEEDLE AND THREAD FOR DIFFERENT TYPES OF MATERIAL Fineness of Thread Material Needle No Silk Fabric Very Thin Muslin Cambric Linen Embroidery etc HA x 1 9 80 3 70 3 80 3 Very Fine Calicoes Linens ...

Страница 12: ...al or and thread f The needle not well inserted or the needle being bent g The shuttle body being damaged by knocking so that the place where the thread passes is rough 3 Breaking of bobbin thread under thread a The hole of the needle plate being rough after the breaking of needle b Thread on the bobbin being loosely wound or over full c The shuttle race back being damaged by knocking so that the ...

Страница 13: ...oot incorrectly adjusted 7 Improper working of the machine and excessive noise a Inadequate length of belt either too long or too short b Frictional parts or joints lacking oil or not being lubricated often enough Vegetable oil being used c Leftover of the fluff in the shuttle race or in the drop feed d The shuttle race back not well replaced after the shuttle race being cleaned e Stop motion scre...

Страница 14: ...ING MACHINE M SDN BHD 124740 M Head Office Lot 11 13 Jalan 51 201 Off Jalan Tandang Seksyen 51 46050 Petaling Jaya Selangor Darul Ehsan Malaysia Tel 603 7788 1111 Fax 603 7788 5555 E mail konwa konwa com my URL www konwa com my ...

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