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15

Mechanical adjustment

Setscrew C

Setscrew B

Setscrew A

Hook base plate

Adjustment 1

1.  Remove the bed cover (see page 3).

2.  Turn the power switch ON, and select the zigzag stitch  
  pattern 11.
  Adjust the stitch width at its maximum (9.0).

3.  Remove the presser foot, needle plate and bobbin    
 holder.

4.  Loosen the setscrews A and B.
  Loosen the setscrew C just enough to move the hook  
  base plate.

5.  Turn the handwheel toward you.
  Adjust the clearance between the needle and the tip    
  of the rotary hook by moving the hook base plate up 
  or down between -0.1and +0.05 mm at the both left    
  and right needle position.

6.  Tighten the setscrews A, B and C.

7.  Check the backlash between the lower shaft gear and  
  the hook drive gear. If the backlash is too great or the 
  engagement of the gears is too tight, adjust the  

 

  backlash (see page 20).
  * Check the hook timing and needle bar height 
     after this adjustment (see page 17 and 18)

Clearance between needle and tip of the rotary hook

The clearance between the needle and the point of hook should be -0.1 to +0.05 mm.

Summary of Contents for Skyline S5

Page 1: ...SERVICE MANUAL SKYLINE S5...

Page 2: ...eed dog height 12 Needle drop position 13 Presser bar height 14 Hook timing 15 Needle bar height 16 Clearance between needle and tip of the rotary hook 17 18 Presser bar lifter switch position adjustm...

Page 3: ...move the setscrews A and B 2 Loosen the setscrew C 3 Remove the belt cover from the main body Be careful not to pull the relay connector 4 Disconnect the relay connector between the printed circuit bo...

Page 4: ...ce cover Close the top cover Raise the carrying handle Pull the top cover toward you to remove it see fig 4 To attach 1 Follow the above procedure in reverse To attach the flange plate put the flange...

Page 5: ...rew A Setscrew A Setscrew A Machine base Base cover To remove 1 Remove the setscrews B 2 Remove the base cover To attach 1 Follow the above procedure in reverse Setscrew B Setscrew B Setscrew B Setscr...

Page 6: ...late Changing external parts 2 Remove the pin Loosen the setscrew 3 Unlock the hook A inside of the machine base and B edge of the free arm 4 Slide the free arm cover to the left Remove the free arm c...

Page 7: ...ide of the machine base Setscrew B Setscrew C Setscrew D 3 Remove the setscrew B 4 Loosen the setscrew C inside of the face cover 5 Loosen the setscrew D inside of the belt cover 6 Unlock the hooks fr...

Page 8: ...e belt cover top cover and base cover see pages 1 2 and 3 3 Loosen the setscrews A and B see fig 1 Remove the setscrews C see fig 2 4 Push the rear cover from the holes D and E with a screwdriver to r...

Page 9: ...the printed circuit board to which it is connected Position the connector correctly then push it straight down until it locks in place Printed circuit board L2 Underside of the function buttons Plug t...

Page 10: ...er see page 5 2 Disconnect the connector from the printed circuit board A see page 7 3 Remove the CS rings 4 Remove the setscrews and the printed circuit board F To attach 1 Follow the above procedure...

Page 11: ...rom the switching power supply unit see fig 2 4 Remove the foot control connector from the printed circuit board A see fig 2 see page 7 5 Remove the setscrews B and switching power supply see fig 2 To...

Page 12: ...screws 2 pcs and the driving motor Replacing electronic components To attach 1 Attach the driving motor Tighten the setscrews temporarily 2 Adjust the motor belt deflection to about 5 mm by pressing t...

Page 13: ...rcuit board A see page 7 3 Remove the spring on the thread tension release lever see fig 1 3 Insert the screwdriver from the left side of the machine Remove the setscrews A and B Remove the thread ten...

Page 14: ...ot lowered 4 Turn the handwheel toward you to raise the feed dog at its highest position 5 Loosen the setscrew A 6 Loosen the nut Adjust the feed dog height to 0 85 mm by turning the adjusting screw B...

Page 15: ...to adjust the needle drop position The direction of eccentric pin should be as shown as fig 2 4 Tighten the hexagonal socket screw Check the hook timing and the needle bar height after this adjustmen...

Page 16: ...oot A Slot Setscrew To adjust 1 Attach the zigzag foot A 2 Drop the feed dogs 3 Raise the presser foot with the presser foot lifter 4 Open the face cover Loosen the setscrew on the presser bar suporte...

Page 17: ...ou Adjust the clearance between the needle and the tip of the rotary hook by moving the hook base plate up or down between 0 1and 0 05 mm at the both left and right needle position 6 Tighten the setsc...

Page 18: ...wer switch ON Select the zigzag stitch pattern 9 Adjust the stitch width at its maximum 9 0 Needle plate hole Setscrew Needle bar supporter Center Adjustment 2 Clearances must be even A B 5 Turn the h...

Page 19: ...the needle 14 3 Turn the power switch ON Select straight stitch Set the needle drop position at 0 0 Do not turn the switch OFF 4 Remove the presser foot the needle plate and the bobbin holder see page...

Page 20: ...e needle bar to adjust the the needle bar height Tighten the hexagonal socket screw Be careful not to turn the needle bar 7 Attach the bobbin holder and the needle plate Hexagonal socket screw Needle...

Page 21: ...he presser bar is at normal up position the The presser foot symbol appears When the presser bar is at lowered position the presser foot symbol disappears If not follow the procedure below To adjust 1...

Page 22: ...over the needle plate with the fabric to prevent damaging when removing the needle plate 3 Turn the handwheel toward you so the the tip of the rotary hook is within the width of feed dog as shown in F...

Page 23: ...d you until PH changes to q to w on LCD 5 The needle height should be 7 2 to 8 2 mm above from the surface of the needle plate If not adjust the upper shaft shield position To adjust 1 Remove the mach...

Page 24: ...50 at the speed of 110 mm sec with the tension at AUTO Be sure the presser foot is lowered 1 Set the thread tension dial to AUTO 2 Open the face cover Adjust the tension by turning the thread tension...

Page 25: ...he needle threader plate line the groove up with the pin B and push it up to snap it To adjust 3 If the hook on the threader plate touches the left or right side of the needle eye loosen setscrew C an...

Page 26: ...ight so the Buttonhole lever slightly touches to the Buttonhole foot Tighten the setscrew To check 1 While pressing the needle up down and lock stitch buttons turn the power switch on The LCD display...

Page 27: ...page 3 4 2 Turn the power switch off Slide the moving cutter to the right with your finger 3 Turn the power switch on The moving cutter motor is initialized and moving cutter moves to its home positio...

Page 28: ...power switch on The LCD display Press 4 key to enter the solenoid test mode 2 Press the needle up down button to release the thread tension The LCD will display on Make sure the needle thread in the t...

Page 29: ...s to the adjusting position Turn the adjusting screw in the direction of A if the measurement is more than 39 mm Turn the adjusting screw in the direction of B if the measurement is less than 33 mm 5...

Page 30: ...e base plate up or down to adjust it Tighten the setscrews TP firmly after the adjustment The actuator of the micro switch should be alighed with the needle plate sensor knob as shown in fig 3 Needle...

Page 31: ...ight stitch attached 2 Be sure that S symbol appears and blinks when the needle plate is attached 3 Replace the needle plate with the needle plate for straight stitch Be sure that S symbol and number...

Page 32: ...diagnosis test Check or replace the following part s if nothing happens when the power switch is turned on 1 Be sure that the machine is plugged in 2 Be sure that the connectors are connected to the p...

Page 33: ...when button 2 is pressed LCD displays F3 when button 3 is pressed LCD displays 03 and BH When the buttonhole lever is pulled buzzer sounds and LCD displays BH symbol BH symbol Bobbin symbol Press butt...

Page 34: ...ighest position feed phase Press the needle up down button If the result is correct condition press the start stop button to proceed the next step If the result is defective condition press the revers...

Page 35: ...ume from left to right then return to the left If the result is correct condition press the start stop button to proceed the next step If the result is defective condition press the reverse stitch but...

Page 36: ...feed dog symbol When the drop feed lever is shifted away from you LCD displays as Fig 1 When the drop feed lever is shifted toward you LCD displays as Fig 2 Fig 1 Feed dog symbol Fig 2 Buzzer does no...

Page 37: ...he printed circuit board A Buzzer sounds after few seconds when the self diagnostic test has been finished The test result has been determined Correct Buzzer sounds and LCD displays 00 Defective Cauti...

Page 38: ...shown on the LCD screen Press t on the touch panel n t4 will be shown on the LCD screen Press y on the touch panel z x c The screen will be back to the e t u t1 t2 t3 t4 t5 w q To start the key posit...

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