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1. NAMES OF MAJOR PARTS ..................................
2. MACHINE SPECIFICATIONS ................................
3. SEWING PATTERN TABLE ...................................
4. OPTIONAL PARTS .................................................
5. INSTALLATION ...................................................... 11
5-1.
Table processing diagram .............................. 12
5-2.
Installing the control box ...............................
5-3.
Installing the motor ........................................
5-4.
Installing the oil pan .......................................
5-5.
Installing the machine head ..........................
5-6.
(Except-90 [ ] ) ................................................
5-7.
5-8.
Installing the belt ............................................
5-9.
Installing the bobbin winder .........................
5-10. Installing the belt cover .................................. 21
5-11. Connecting the cords .....................................
5-11-1. Ground wire connections ................. 25
5-11-2. Connecting the harness ...................
5-11-3. Connecting the power cord .............
or option) ........................................... 31
harness (option) ...............................
5-12. Installing the cotton stand .............................. 33
5-13. Connecting the connecting rod .....................
5-14. Lubrication ......................................................
5-15-1. Turning on the power ......................
5-15-2. Operating the treadle .......................
5-16. Adjusting the treadle ......................................
6. PREPARATION BEFORE SEWING ........................ 46
6-1.
Installing the needle .......................................
6-2.
Removing the bobbin case ............................
6-3.
Winding the lower thread ..............................
6-4.
Installing the bobbin case ..............................
6-5.
Threading the upper thread ..........................
6-6.
Adjusting the stitch length ............................
6-7.
Backtacking .....................................................
6-8.
-90 [ ] ) .............................................................
7. USING THE OPERATION PANEL ......................... 57
7-1.
Part names and functions ..............................
7-2.
Pattern setting method ..................................
7-2-1.
Setting the sewing pattern ..............
7-2-2.
Setting the zigzag width ..................
7-2-3.
position .............................................
7-2-4.
7-3.
Setting the sewing speed ..............................
7-4.
Correction sewing ........................................... 91
7-5.
7-6.
(856A, 855A-A0 [ ] only) .................................. 93
7-7.
(856A, 855A-A0 [ ] only) .................................. 105
7-8.
(856A, 855A-A0 [ ] only) .................................. 115
CONTENTS
1
7-9.
Operation panel key locking method ............ 124
3
8. Using the lower thread counter .......................... 125
7
9. SEWING ................................................................. 128
9-1.
Sewing ............................................................ 129
9
10. THREAD TENSION ................................................ 130
10-1. Adjusting the thread tension ......................... 130
10-2. Adjusting the presser foot pressure ............. 132
13
11. CLEANING ............................................................. 133
14
15
12. REPLACING PARTS .............................................. 137
16
(856A only) ...................................................... 138
17
17
and feed dog) .................................................. 139
19
20
856A- [ ] 01 only) ............................................ 142
13. STANDARD ADJUSTMENTS ............................... 143
24
13-1. Adjusting the thread tension spring ............. 144
13-2. Adjusting the presser foot height ................. 146
26
13-3. Adjusting the feed dog height ....................... 147
30
13-4. Adjusting the feed dog angle ........................ 148
the feed dog .................................................... 149
mechanism timing ......................................... 150
32
13-7. Adjusting the needle bar height ..................... 151
13-8. Needle and rotary hook timing ..................... 153
33
13-9. Hook stopper position .................................... 153
34
13-10. Adjusting the synchronizer ............................ 157
35
35
amount ............................................................ 159
38
44
after thread trimming (856A only) ................. 161
46
trimming cam (856A only) .............................. 165
47
48
presser spring (856A only) ............................ 169
50
13-15. Adjusting the thread wiper (856A only) ........ 170
51
13-16. Setting the DIP switches ................................ 171
53
13-17. Memory switch setting method ..................... 177
54
14. OPTIONAL PARTS ................................................. 190
14-1. Reflection pattern switch ............................... 191
56
14-2. Dial lock lever ................................................. 197
14-3. Presser bar U and presser bar tip ................. 198
57
14-4. Thread guide F ................................................ 201
69
14-5. Gauge set (for pocket attaching) ................... 203
69
77
16. TROUBLESHOOTING ........................................... 205
79
16-1. Machine head ................................................. 205
83
16-2. Operation panel ............................................... 208
84
16-3. List of error codes ........................................... 209
92
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