Brother PC6000 Service Manual page 19

III. HOW TO ADJUST MECHANICAL ELEMENTS
1. SETTING THE TEST MODE..................................................................................18
2. TENSION OF MOTOR BELT AND TIMING BELT................................................18
3. NEEDLE DOWN POSITION ADJUSTMENT.........................................................19
4. TIMING OF NEEDLE AND ROTARY HOOK
(CLEARANCE BETWEEN THE NEEDLE AND THE ROTARY HOOK POINT) ..19
5. NEEDLE BAR HEIGHT..........................................................................................20
6. LOWER SHAFT .....................................................................................................20
7. FRONT/BACK, LEFT/RIGHT POSITION OF FEED DOG ....................................21
8. HEIGHT OF FEED DOG ........................................................................................21
9. PRESSER BAR HEIGHT .......................................................................................22
10. CHECKING DETECTION OF FABRIC THICKNESS ............................................22
11. POSITION OF BUTTONHOLE SWITCH LEVER ..................................................23
12. BOBBIN WINDER..................................................................................................23
13. INNER ROTARY HOOK BRACKET POSITION ...................................................24
14. LARGE ONE-POINT PATTERN SHAPE (SOFT ADJUSTMENT)........................24
15. FEED ADJUSTMENT (VERTICAL FEED) ............................................................25
16. INNER ROTARY HOOK TENSION .......................................................................25
17. NEEDLE THREADER ............................................................................................26
18. NEEDLE THREADER
(CHECKING THE HOOK POSITION IN HORIZONTAL DIRECTION) .................26
19. NEEDLE THREADER (EXCHANGE) ....................................................................27
20. NEEDLE THREADER (CHECKING THE HOOK IN STANDARD POSITION).....27
21. NEEDLE THREADER
(CHECKING THE HOOK POSITION IN VERTICAL DIRECTION) .......................28
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