CONTENTS
................................................................................................................................................
CAUTION BEFORE OPERATION
1
.................................................................................................................................
1
.
INSTALLATION OF MACHINE HEAD
1
2
.
LUBRICATION
...........................................................................................................................................................................
1
4
3
.
ATTACHING THE NEEDLE
.....................................................................................................................................................
1
4
.
ATTACHING THE NEEDLE BAR GUARD
.............................................................................................................................
1
5
.
ATTACHING THE BUTTON TRAY ASSEMBLY
..................................................................................................................
2
6
.
THREADING THE MACHINE
...............................................................................................................................................
2
7
.
THREAD TENSION ADJUSTMENT
..................................................................................................................................
2
8
.
ADJUSTMENT OF THE THREAD PULL-OFF LEVER
..........................................................................................................
2
9
.
NEEDLE-TO-LOOPER RELATION
..........................................................................................................................................
3
.
10
.
ADJUSTMENT OF THE NIPPER
..............................................................................................................................................
3
11
.
POSITION OF THE NEEDLE GUIDE
......................................................................................................................................
3
.
12
.
HEIGHT OF THE BUTTON CLAMP
........................................................................................................................................
4
13
.
WORK PRESSING FORCE
......................................................................................................................................................
4
14
.
ADJUSTMENT OF THE BUTTON CLAMP STOP LEVER
...................................................................................................
4
...........................................................................................................................
15
.
TIMING OF THREAD TENSION RELEASE
4
16
.
SETTING FOR 2-OR 4-HOLE BUTTONS
................................................................................................................................
4
17
.
SETTING A NUMBER OF STITCHES
.....................................................................................................................................
5
18 .
AUTOMATIC THREAD TRIMMER (EXCLU'SIVE FOR MB-373)
.......................................................................................
5
19
.
SUBCLASS MODELS
................................................................................................................................................................
6
20
.
ATTACHMENTS
........................................................................................................................................................................
6
21
.
SPECIFICATIONS
......................................................................................................................................................................
8
22
.
MOTOR PULLEY AND BELT
..................................................................................................................................................
8
23
.
TROUBLES AND CORRECTIVE MEASURES WITH RESPECT TO SEWING
.................................................................
9