Safety rules for machines
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4
1. Specification
1) Specifications of the sewing machine ....................................................................................................................... 8
2) Specifications of the servo motor controller ............................................................................................................. 9
3) Specifications of the clutch motor (for non-trimming type) ..................................................................................... 9
4) Peripheral automation devices (optional) .................................................................................................................. 9
2. Installation
1) Installation of the machine head .............................................................................................................................. 10
2) Installation of the knee lifting solenoid and power switch box .............................................................................. 10
3) Installation of the oil fan .......................................................................................................................................... 11
4) Oil supply ................................................................................................................................................................. 11
5) Adjustment of belt tension ....................................................................................................................................... 13
6) Installation of the program unit (automatic trimming type) ................................................................................... 13
7) Installation of the belt cover .................................................................................................................................... 13
8) Installation of the thread stand ................................................................................................................................. 14
9) Location detector assembling and its control method (automatic trimming type) ................................................ 14
10) Reverse button function ......................................................................................................................................... 15
11) Checking stop position of the sewing machine ..................................................................................................... 15
3. Adjustment of the machine
1) Inserting the needle .................................................................................................................................................. 16
2) Removing bobbin and bobbin case ......................................................................................................................... 16
3) Routing the lower thread ......................................................................................................................................... 17
4) Inserting the bobbin ................................................................................................................................................. 17
5) Routing the upper thread ......................................................................................................................................... 18
6) Adjusting the thread tension .................................................................................................................................... 18
7) Adjusting the height and pressure of the presser foot ............................................................................................. 20
8) Adjusting the needle and feed dog timing .............................................................................................................. 21
9) Adjusting the height of the feed dog ....................................................................................................................... 21
10) Adjusting the needle and hook timing .................................................................................................................. 21
11) Clearance adjustment between the upper side of hook stopper and the upper side of needle board groove ...... 22
12) Clearance adjustment between hook and opener .................................................................................................. 23
13) Operation of needle bar (left, right) stop (KM-790 series) ................................................................................... 23
14) Adjustment of safety device .................................................................................................................................. 25
15) Adjusting trimming device .................................................................................................................................... 26
16) Replacing movable knife and fixed blade ............................................................................................................. 31
17) Adjustment of wiper ............................................................................................................................................. 32
18) Replacing gauge set for needle width .................................................................................................................. 33
4. Cause of troubles and troubleshooting
1) Sewing machine troubleshooting ............................................................................................................................ 34
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