JUKI DDL-9000C-S Series - Table of Contents

xi
CONTENTS
1. Specications ............................................................................................ 1
2. Name of each component ......................................................................... 2
3. Standard adjustment ................................................................................. 4
(1) Feed dog height and gradient .................................................................................. 4
(2) Adjusting the needle and the hook .......................................................................... 6
(3) Operating timing of the feed ..................................................................................... 8
1
）
DDL-9000C-F type ...........................................................................................................................8
2
）
DDL-9000C-S type ..........................................................................................................................9
(4) Bobbin insertion ...................................................................................................... 10
(5) Adjustment of inner hook presser position .......................................................... 12
(6) Lubrication ............................................................................................................... 14
1) Method of lubrication ....................................................................................................................14
2) Method of lubrication to the oil tank ...........................................................................................16
3) Method of oil drainage from the oil tank ......................................................................................16
4) Cleaning of the oil lter ................................................................................................................18
5) Adjusting the amount of oil in the hook ......................................................................................20
6) Hook oil adjustment procedures ..................................................................................................20
7) Essentials for hook oil adjustments ............................................................................................20
8) Replacement of the hook shaft oil wick .......................................................................................20
(7) Various origin adjustments ................................................................................... 22
1) Z-phase adjustment of a main motor ...........................................................................................22
2) Adjustment of the origin of a presser lifter motor ......................................................................26
3) Pitch motor adjustment .................................................................................................................28
4) Vertical feed motor adjustment ....................................................................................................30
5) Vertical feed link adjustment ........................................................................................................32
6) Adjustment of forward reverse stitches (correction function) ..................................................34
7) Adjustment of active tension (only the DDL-9000C-F) ...............................................................36
(8) Adjusting the needle thread presser device ......................................................... 40
1) Needle thread presser device .......................................................................................................40
2) Adjusting the remaining length of needle thread .......................................................................42
3) Length of needle thread remaining at the needle .......................................................................42
4) Response to problems occurring at the beginning of sewing ..................................................44
5) Response to problems occurring at the beginning of sewing ..................................................48
(9) Adjusting the thread trimming unit ........................................................................ 52
1) Adjustment of the thread trimming cam position .......................................................................52
2) Adjustment of the thread trimming link stopper screw ..............................................................52
3) Adjustment of the thread trimming cam position .......................................................................54
4) Adjusting the knife unit .................................................................................................................56
4) Adjusting the knife unit .................................................................................................................58
5
）
Adjustment of thread trimming speed ........................................................................................58
4) Adjusting the knife unit .................................................................................................................59
6) Adjustment of rise of the second thread tension disc ...............................................................60
7) Adjustment of the picker ...............................................................................................................62
8) Adjustment of the driven part stopper ........................................................................................64
9) Adjustment of the driven part stopper .........................................................................................66
10) Installed length of the thread trimmer connector bar (asm.) ...................................................66
11) Protrusion of the thread trimming shaft and stopper position ............................................... 68
(10) Adjustment of thrust values of an upper shaft ................................................... 70
(11) Adjustment of external parts ................................................................................ 72
1) Adjustment of the pulley cover .....................................................................................................72