Table of Contents
Safety rules for machines.............................................4
1.Specifications
1) Machine types....................................................................................8
2) Specifications of the machine ...........................................................8
3) Specifications of servo motor controller...........................................8
(trimming type: KM-857-7, KM-867-7)
4) Specifications of clutch motor
(non-trimming type: KM-857, KM-867)..........................................9
5) Peripheral automation devices (optional: trimming type)................9
2. Installation
1) Installation of machine head ...........................................................10
2) Installation of knee lifting solenoid and power switch box ...........10
3) Installation of oil fan........................................................................11
4) Lubrication.......................................................................................11
5) Adjustment of belt tension ..............................................................13
6) Installation of program unit (automatic trimming type) ................13
7) Installation of belt cover..................................................................13
8) Installation of thread stand ..............................................................14
9) Synchronizer assembling and its control method
(automatic trimming type)...............................................................14
10) Reverse button function (automatic trimming type)....................15
11) Checking stop position of the machine
(automatic trimming type).............................................................15
3. Adjustment of the machine
1) Inserting needle................................................................................16
2) Removing bobbin and bobbin case.................................................16
3) Winding lower thread......................................................................17
4) Routing lower thread.......................................................................17
5) Inserting bobbin...............................................................................18
6) Routing upper thread.......................................................................18
7) Adjusting thread tension .................................................................19
8) Adjusting height and pressure of the presser foot ..........................21
9) Adjusting needle and feed dog timing ...........................................22
10) Adjusting height of the feed dog...................................................22
11) Adjusting needle and hook timing................................................23
12) Clearance adjustment between upper side of
hook stopper and upper side of needle plate groove ...................24
13) Clearance adjustment between hook and opener .........................24
14) Replacing feed dog........................................................................25
15) Adjustment of safety device..........................................................26
16) Adjusting trimming device ...........................................................26
17) Replacing movable knife and fixed blade ....................................32
18) Adjustment of wiper .....................................................................32
19) Replacing gauge set for needle width ..........................................34
4. Cause of trouble and troubleshooting
1) Machine troubleshooting.................................................................35
