SunStar KM-957 Series - Table of Contents

Safety rules for machines ..................................................................................................................................... 4
1. Specification ........................................................................................................................................................... 8
1) Sewing machine ......................................................................................................................................................... 8
2) Servo motor .................................................................................................................................................................8
3) 470 motor ................................................................................................................................................................... 8
4) 470 motor controller ................................................................................................................................................... 8
5) Clutch motor ............................................................................................................................................................... 9
6) Peripheral automation devices (optional) .................................................................................................................. 9
2. Installation .............................................................................................................................................................. 10
1) Installation of machine head .................................................................................................................................... 10
2) Installation of oil tray (oil fan) ................................................................................................................................. 10
3) Installation of automatic knee lifting solenoid and power switch box ................................................................... 11
4) Lubrication ............................................................................................................................................................... 11
5) Adjustment of belt tension ....................................................................................................................................... 12
6) Installation of program unit (for automatic trimming type) ................................................................................... 12
7) Installation of belt cover .......................................................................................................................................... 12
8) Installation and adjustment of synchronizer (for automatic trimming type) ......................................................... 13
9) Description of back tack button (for automatic trimming type) ............................................................................. 14
10) Check for machine stop position (for automatic trimming type) ......................................................................... 14
3. Machine Adjustment
1) Inserting needle ........................................................................................................................................................ 15
2) Removing bobbin and bobbin case ......................................................................................................................... 15
3) Inserting lower thread .............................................................................................................................................. 16
4) Inserting bobbin ....................................................................................................................................................... 16
5) Routing upper thread ................................................................................................................................................ 16
6) Adjusting thread tension .......................................................................................................................................... 17
7) Adjusting roller presser foot height and pressure ................................................................................................... 19
8) Rotating roller shaft ................................................................................................................................................. 19
9) Adjusting automatic knee lifter (optional) .............................................................................................................. 19
10) Adjusting stitch length ........................................................................................................................................... 19
11) Adjusting feed cam ................................................................................................................................................ 20
12) Adjusting feed dog height ...................................................................................................................................... 20
13) Adjusting timing of needle and hook .................................................................................................................... 21
14) Adjusting clearance between upper side of hook stopper and of needle plate groove ........................................ 22
15) Adjusting clearance between hook and opener .................................................................................................... 22
16) Adjusting for thread trimmer ................................................................................................................................. 23
17) Exchanging movable knife and fixed knife .......................................................................................................... 26
18) Adjusting gear box ................................................................................................................................................. 26
19) Adjusting ascending amount of roller shaft clutch ............................................................................................... 27
20) Exchanging needle width gauge set ...................................................................................................................... 27
21) Adjustments for KM-957SR ................................................................................................................................. 28
4. Causes of Trouble and Troubleshooting
1) Sewing machine troubleshooting .............................................................................................................................29
5. Table drawing
1) KM-967 .....................................................................................................................................................................31
2) KM-967-7 ..................................................................................................................................................................32
Table of Contents