CONTENTS
5.12
Raising the upper feed roller (VE2740PR-8F)
20
5.13
Pressure of the upper feed roller (
VE2740PR-8F
)
20
5.14
SP device
21
5.15
Cleaning the machine
22
6. Ad jus t m e nt s
2 3
6.1
Needle thread tension
23
6.2
Top cover thread tension
24
6.3
Looper thread tension
25
6.3.1
Looper thread tension
25
6.3.2
Position of the looper thread take-up
25
6.4
Relation between the needle and the spreader
26
6.4.1 Spreader
26
6.4.2
Top cover thread guide
27
6.4.3
Top cover thread eyelet
27
6.5
Distance between the needle and the looper
28
6.6
Using the timing gauge
28
6.7
Height of the needle
29
6.8
Back-and-forth position of the needle and the looper
29
6.9
Needle and needle guard
30
6.9.1
Needle guard (rear)
30
6.9.2
Needle guard (front)
31
6.10
Height of the feed dog
32
6.11
Removing the presser foot and presser foot lift
33
6.12
Toeing up and down the presser foot
34
6.13
Adjusting the walking presser foot (VE2711-8F-WF1)
35
6.14
Feeding amount of the puller (VE2740PR-8F)
36
6.15
Pressure of the clutch tension spring (VE2740PR-8F)
36
7. Sp ec if ic at io ns
3 7
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 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.