2. MACHINE SPECIFICATIONS
.................................................. 6
5. INSTALLATION
........................................................ 11
5-8. Lubrication ............................................................ 19
5-9. Checking the machine pulley rotating
direction ................................................................ 21
6-4-1. Installing the bobbin
[841A, 842A, 847A, 872A] ........................... 26
6-7-2. Number of stitches: quick-reference
guide ............................................................. 34
..................................................................... 35
7-1. Sewing .................................................................. 36
7-2. Backtacking
[842A, 845A, 847A, 848A, 872A, 875A] .............. 36
.................................................. 37
CONTENTS
................................. 1
................................. 3
................................ 9
...................... 22
- xi -
9. SWITCHING BETWEEN UPPER FEED AND
................................................................ 45
11-4-2. Clearances between rotary hooks
and needle plate .......................................... 54
11-4-3. Clearance between rotary hook and
opener ........................................................... 55
12. REPLACING GAUGE PARTS (CHANGING THE
NEEDLE WIDTH)
..................................................... 64
13-2. Replacing the upper thread tension
assembly .............................................................. 74
............................ 41
............................... 48
......................... 69
............................... 75
TN-8400, 8700
TL-8400