Table Of Contents - JUKI DDL-9000B-SH Engineering Manual

1. Specifications ...............................................................................................
2. Name of each component ............................................................................ 2
3. Standard adjustment .................................................................................... 4
(1) Feed dog height and gradient ................................................................................... 4
(2) Timing for the needle and the inner hook ................................................................ 6
(3) Needle and feed timing .............................................................................................. 8
(4) Feed locus and phase .............................................................................................. 10
(5) Bobbin insertion ....................................................................................................... 12
1) Bobbin case with idling prevention spring ..................................................................................12
(6) Adjustment of inner hook presser position ........................................................... 14
(7) Lubrication ................................................................................................................ 16
1) Method of lubrication .....................................................................................................................16
2) Method of lubrication to the oil tank .............................................................................................18
3) Method of oil drainage from the oil tank ......................................................................................18
4) Cleaning of the oil filter ..................................................................................................................20
5) Oil in the gear box ..........................................................................................................................22
6) Placement/displacement of the gear box cover ..........................................................................22
7) Cautions for gear box cover oil during transportation ...............................................................22
8) Adjustment of hook oil quantity ....................................................................................................24
9) Hook oil adjustment procedures ...................................................................................................24
10) Essentials for hook oil adjustments .............................................................................................24
11) Replacement of the hook shaft oil wick .......................................................................................24
(8) Adjustment of the amount of feeding ..................................................................... 26
1) Adjustment of forward feed stitch length .....................................................................................26
2) Adjustment of reverse feed stitch length (manual) .....................................................................26
3) Adjustment of reverse feed stitch length (motor-power) ............................................................26
4) Optional switch ...............................................................................................................................28
5) Adjustment of normal/reverse stitching .......................................................................................30
6) Adjustment of Feed 0 .....................................................................................................................30
1. Method by removing the gear box cover (standard adjustment) ................................................. 30
7) Adjustment of the feed dial section ..............................................................................................32
8) Installation of the reverse feed arm and the reverse feed solenoid .......................................... 34
9) Stop position of the feed control spring rack ..............................................................................34
(9) Adjustment of the presser lifter .............................................................................. 36
1) Adjustment of the presser pressure .............................................................................................36
2) Adjustment of thread release changeover ...................................................................................36
3) Adjustment of the micro-lifter .......................................................................................................38
4) Adjustment of the micro-lifter unit (available separately) .......................................................... 38
(10) Adjustment of needle stop position ........................................................................ 40
1) Adjustment of upper stop position (Stop position after thread trimming) ................................40
2) Adjustment of lower stop position ................................................................................................40
(11) Thread trimming unit ................................................................................................ 42
1) Adjustment of the thread trimming cam position ........................................................................42
2) Adjustment of the thread trimming link stopper screw ..............................................................42
3) Standard timing for the thread trimming cam ..............................................................................44
1. Method of confirmation ................................................................................................................45
2. Method of adjustment ..................................................................................................................45
4) Correct position of the moving knife ............................................................................................46
1. Extreme backward position .........................................................................................................47
2. Initial position ...............................................................................................................................47
CONTENTS
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