Husqvarna Viking Designer Topaz Service Manual

Husqvarna Viking Designer Topaz service manual

This is a comprehensive manual needed for service and adjustment of the sewing machine.


Directions for use .................................................................................................................................. 4
ESD ......................................................................................................................................................... 4
Service tools ........................................................................................................................................... 5
Settings ................................................................................................................................................... 6
Settings - Quick reference ...................................................................................................................... 7
1. Belt tension -drive belt .................................................................................................................... 10
2. Belt tension -motor belt .................................................................................................................. 10

3. The play of the hook gear .............................................................................................................. 11
4. Setting the hook in relation to the feeding eccentric (After feeding) .......................................... 12
5. The gap between the needle and the hook .................................................................................. 13
6. Setting the needle plate (the hook cover) in relation to the needle in the feeding direction. ... 14
7. Setting the feed dog in relation to the needle plate ...................................................................... 15
8. The height of the hook ................................................................................................................... 16
9. Feed dog height .............................................................................................................................. 17

10. Setting the needle in centre position ............................................................................................. 18
11. The needle bar height ..................................................................................................................... 20
12. The timing of the hook in relation to the needle .......................................................................... 21
13. Needle threader stop ....................................................................................................................... 22
14. Threading device ............................................................................................................................. 23
15. Presser foot parallelism to the feed dog ........................................................................................ 24
16. Presser foot height to the needle plate .......................................................................................... 24
17. Pivot height ..................................................................................................................................... 25
18. Stitch length balance basic setting .................................................................................................. 26
19. Stitch length balance ..................................................................................................................... 27
20. Lower thread tension (thread tension of the bobbin case) .......................................................... 28
21. Upper thread tension - setting point "1" ....................................................................................... 29
22. Upper thread tension - setting point "2" ....................................................................................... 30
23. Upper thread tension - setting point "3" ....................................................................................... 31
24. Upper thread tension - setting point "4" ....................................................................................... 32
25. Setting the thread take-up spring ................................................................................................... 33
26. Disconnection when winding the bobbin ..................................................................................... 34
Service program Topaz ....................................................................................................................... 35
Functions of the service menu 1 - Step motors .................................................................................. 36
Functions of the service menu 2 - Display and Sensor ...................................................................... 37
Functions of the service menu 3 - Test patterns ................................................................................ 38
Functions of the service menu 4 - Info and Test patterns ................................................................. 39
Functions of the service menu 5 - Key Board Test ............................................................................ 40
Functions of the Embroidery Unit Service Menu ............................................................................... 40
Update of the software - Designer Topaz ........................................................................................... 40
Front Lid ............................................................................................................................................... 41
Rear cover ............................................................................................................................................ 41
Front cover........................................................................................................................................... 42
Base Plate............................................................................................................................................. 43
Power supply ....................................................................................................................................... 44
Circuit board - Circuit diagram Designer Topaz ................................................................................. 45
Tension unit ......................................................................................................................................... 46
Tension unit - Replacement of the tension discs................................................................................ 47
Tension unit - Replacement of the Stepmotor .................................................................................... 48
Sewing head ........................................................................................................................................ 49
Step motor of the needle ..................................................................................................................... 50
Step motor of the Presser bar .............................................................................................................. 51
Presser bar bushing .............................................................................................................................. 52
Needle bar bushing .............................................................................................................................. 53
Sewing head re-building ...................................................................................................................... 54
Arm shaft. ............................................................................................................................................. 57
Hook cover compl. Topaz 20 ............................................................................................................. 58
Hook cover compl. Topaz 30 .............................................................................................................. 59
Replace thread cutter Topaz 30 ........................................................................................................... 60
Hook complete .................................................................................................................................... 61
Feeding unit step motor ....................................................................................................................... 62
Feeding unit ......................................................................................................................................... 63
Lower Shaft .......................................................................................................................................... 64
Bobbin winding device Topaz 20 ....................................................................................................... 65
Bobbin winding device Topaz 30 ....................................................................................................... 65
Bobbin winding motor Topaz 30 ........................................................................................................ 65
Bobbin winding sensor Topaz 30 ....................................................................................................... 65
Threadcutting unit .............................................................................................................................. 66
Remove Thread tension cover ............................................................................................................. 67
EMBROIDERY UNIT ............................................................................................................................. 68
Cover Y-slide ....................................................................................................................................... 68
Step motor cover ................................................................................................................................. 68
Upper covers ....................................................................................................................................... 69
Lower cover ......................................................................................................................................... 69
Belt tension, Embroidery unit - X-unit ................................................................................................ 70
Belt tension, Embroidery unit - Y-unit ................................................................................................ 71
Step motor, Embroidery unit - Y-unit .................................................................................................. 72
Step motor, Embroidery unit - X-unit .................................................................................................. 72
Hoop holder Embroidery unit - Y-unit ............................................................................................... 73
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