CONTENTS
Attention
The parts used for this product are subject to change without notice. If such a chang e is made , any part
of the contents and illustrations of this instruction manual may not conform to this product.
In preparing the instruction manual, we have made our best efforts for making it free of any error or
omission. If any error or omission should yet be found, it might not be rectified immediately.
Attention
◇This instruction manual is designed mainly for technicians , but it is advisable that also operators read
the instructions with mark to use the machine properly.
◇The numbers in lower left corners of figures are figure numbers. We use them in texts as needed for
your reference.
6. Adjustments
24
6.1
Needle thread tension
24
6.2
Top cover thread tension
25
6.3
Looper thread tension
26
6.4
Removing presser foot and presser foot lift
27
6.5
Looper
28
6.6
Height of needle bar
29
6.7
Front-and-rear position of needle and looper
30
6.8
Needle and needle guard
31
6.9
Height of feed dog
32
6.10
Needle and spreader
32
6.11
Folder (VF2403, 2503, 2404, 2504)
34
6.12
Metering device (VF2404, 2504)
35
7. Specifications
37
