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13

8. Clearance between the Needle and 
    Looper

The clearance between the looper point and scarf of 
the needle (Schmetz ELx705, size 80/12) should be 
0–0.05 mm.

z

  Remove the free arm cover and needle plate.

x

  Turn the handwheel toward you until the looper 

 point 

q

 comes behind the needle.

c

  Loosen the setscrews 

w

 and thrust the front needle 

 guard 

e

 against the needle to make 0-0.05 mm 

  clearance between the needle and looper point.

v

  Tighten the setscrews 

w

 and check the clearance.

b

  Attach the needle plate and free arm cover.

q

w

e

e

0–0.05 mm

Содержание easy cover

Страница 1: ...SERVICE MANUAL MODEL easy cover...

Страница 2: ...2 Foot Pressure 7 3 Needle Bar Heihgt 8 4 Feed Dog Height 9 5 Looper Height 10 6 Looper Postion 11 7 Needle to Looper Timing 12 8 Clearance between the Needle and Looper 13 9 Back Needle Guard Height...

Страница 3: ...1 Replacing the External Parts 1 Belt Cover To remove z Remove the setscrews q and remove the belt cover w To attach x Follow the above procedures in reverse q q w...

Страница 4: ...2 2 Looper Cover To remove z Remove the setscrews q and remove the looper cover w with a hinge attached To attach x Follow the above procedures in reverse q w...

Страница 5: ...3 3 Rear Cover To remove z Raise the handle q and remove the setscrews w e and r Remove the rear cover t To attach x Follow the above procedures in reverse q w e r t...

Страница 6: ...ront Cover To remove z Remove the face plate belt cover looper cover and rear cover x Remove the setscrews q w e and r Remove the front cover t To attach c Follow the above procedures in reverse q e r...

Страница 7: ...5 5 Free Arm Cover To remove z Remove the setscrews q and the free arm cover w To attach x Follow the above procedures in reverse q w...

Страница 8: ...set plate w c Raise the presser foot and loosen the setscrew e Move the presser bar r up or down to set the presser foot height to 5 mm v Tighten the setscrew e firmly NOTE Make sure that the presser...

Страница 9: ...7 2 Foot Pressure The pressure adjusting screw should protrude 10 mm from the top of the machine z Turn the adjusting screw q to set its height at 10 mm 10 mm q...

Страница 10: ...screws q and lamp set plate w c Replace the left needle with Schmetz ELx705 size 80 12 needle e v Turn the handwheel toward you to raise the needle bar to the highest position b Loosen the setscrew r...

Страница 11: ...mm above the needle plate z Set the stitch length dial at 3 and differential feed dial at 1 0 x Lower the presser foot and turn the handwheel toward you to raise the feed dog to its highest position...

Страница 12: ...u to bring the looper w to its rightmost position v Pull the looper release knob e and swing the looper w to the left until its point matches with the test pin q b Loosen the setscrew r and move the l...

Страница 13: ...ing the looper w to its rightmost position v Loosen the setscrew e and move the looper to the left or right to adjust the distance between the test pin and looper point to 2 0 mm NOTES Do not move the...

Страница 14: ...g q c Turn the handwheel toward you until the looper point w meets with the right side of the test pin v Loosen the setscrews e and turn the looper rocking cam r to match the looper point with the tip...

Страница 15: ...ree arm cover and needle plate x Turn the handwheel toward you until the looper point q comes behind the needle c Loosen the setscrews w and thrust the front needle guard e against the needle to make...

Страница 16: ...e guard e up or down to set the upper edge r 2 8 mm below the lower edge t of the looper point v Turn the handwheel toward you slightly to bring the looper point behind the needle Check the clearance...

Страница 17: ...the handwheel toward you to lower the needle bar until the point of the left needle is 3 0 mm above the upper surface of the needle plate q v Loosen the setscrews w and turn the feed cam e to adjust...

Страница 18: ...der the presser foot Lower the foot and turn the handwheel toward you about 15 times Measure the distance of needle marks of 10 stitches The distance should be 30 32 mm v Turn the adjusting screw e to...

Страница 19: ...rential feed dial at 1 0 c Turn the adjusting screw q to adjust the differential feed ratio If the sub feed dog moves less than the main feed dog does turn the adjusting screw in the direction of A If...

Страница 20: ...thread 55 65 grams Dial set at 4 e Right needle thread 45 55 grams Dial set at 4 r Looper thread 9 15 grams Dial set at 3 z Remove the front cover x Turn the adjusting plate t to adjust the tension I...

Страница 21: ...tor belt n Connect the motor cords e r t and y to the connector tabs A B C and D m Attach the machine socket w with the setscrews q Adjust the motor belt tension see below To adjust the motor belt ten...

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