Instruction manual

CONTENTS
6. Adjustments 21
6.1 Needle thread tension 21
6.2 Top cover thread tension 23
6.3 Looper thread tension 23
6.4 Needle and spreader 24
6.4.1 Spreader 24
6.4.2 Top cover thread guide 25
6.4.3 Top cover thread eyelet 25
6.5 Distance between needle and looper 26
6.6 Using timing gauge 26
6.7 Height of needle 27
6.8
Needle and back-and-forth position of looper 27
6.9 Needle and needle guard(rear) 28
6.10 Needle and needle guard(front) 29
6.11 Height of feed dog 29
6.12 Changing range of differential ratio 30
6.13 Presser foot lift 31
6.14 Replacing fabric presser 32
6.15 Feeding amount of puller (with puller mechanism) 33
6.16
Pressure of clutch tension spring (with puller mechanism) 33
7. Trimming mechanism 34
7.1 Adjusting trimming position of fabric 34
7.2 Adjusting suction pipe(front) 35
7.3 Adjusting suction pipe cover 35
7.4 Removing and resetting lower knife 36
7.5 Removing and resetting upper knife 37
7.6 Adjusting upper knife stroke 38
7.7 Sharpening knives 39
8. Specifications 40
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.
Attention
The parts used for this product are subject to change without notice. If such a change is
made, any part of the contents and illustrations of this instruction manual may not con-
form 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 recti-
fied immediately.