Brother PC6000 - III. How to Adjust Mechanical Elements

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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