CONTENTS
1. SPECIFICATIONS.......................................................................................... 1
2. STANDARD ADJUSTMENT ...........................................................................
8
(1) Needle entry position .................................................................................................8
(2) Longitudinal position of the feed dog ......................................................................8
(3) Lateral position of the feed dog ..............................................................................10
(4) Height of the feed dog .............................................................................................10
(5) Height of the hook ....................................................................................................12
(6) Adjusting the inner hook guide ..............................................................................12
(7) Needle-to-hook timing .............................................................................................14
(8) Lift of the presser foot .............................................................................................16
1) Hand lifter .........................................................................................................................................16
2) Knee lifter (Without thread trimmer only) ..........................................................................................16
3) Automatic presser foot lifter (Machine with thread trimmer only)......................................................18
(9) Timing between the upper shaft and the lower shaft............................................18
(10) Feed cam timing .......................................................................................................20
1) Horizontal feed cam timing ...............................................................................................................20
2) Top feed cam timing..........................................................................................................................22
(11) Feed motion ..............................................................................................................24
1) Amount of alternate vertical movement (position of the vertical adjusting arm) ...............................24
2) Alternate momentum ........................................................................................................................26
(12) Needle sway (Adjusting the bottom feed amount) ................................................26
(13) Stitch length of forward/reverse feed .....................................................................28
(14) Balancer (Machine without thread trimmer only) ..................................................28
(15) Vertical position of the needle bar rocking frame .................................................30
(16) Dimension of the needle stop adjusting slide shaft (asm.) ..................................32
(17) Position of the change lever....................................................................................32
(18) Position of the reverse feed control lever ..............................................................34
(19) Safety clutch .............................................................................................................34
(20) Reverse feed cylinder ..............................................................................................36
(21) Lubrication ................................................................................................................36
1) In case of manual lubrication ............................................................................................................36
2) In case of automatic lubrication ........................................................................................................38
(22) Thread trimmer device .............................................................................................40
1) Position of the counter knife and the clamp spring ...........................................................................40
2) Position of the counter knife base.....................................................................................................42
3) Vertical position of the moving knife .................................................................................................42
4) Adjusting the knife pressure .............................................................................................................44
5) Thread trimmer cam .........................................................................................................................44
6) Thread trimmer cam timing...............................................................................................................46
7) Connecting the rocking arm and the thread trimmer roller arm ........................................................46
8) Connecting the left and right rocking arms (2-needle machine only) ..............................................48
9) Thread trimmer solenoid...................................................................................................................48
(23) Alternate vertical dial ...............................................................................................50
1) Installing position of the detection switch of the amount of alternate vertical movement .................50
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