– 6 –
(Caution) In case of threading for standard seams, rocking thread take-up thread guide
is not used.
2. Threading for soft seams
(1) When soft seams are required, change the threading of needle thread and slide the position of looper thread
cam eyelet.
(2) Do not pass needle thread through needle bar thread take-up
. Pass the thread from rocking thread
take-up
to rocking thread take-up thread guide
.
(3) Other points are same as those of "1. Threading for standard seam".
1. Threading for standard seam
A
Broken lines
A
when stretcher thread is used
C
B
D
When covering thread is
excessively loosened =
B
When covering thread is
excessively loosened even
after passing
B
=
C
When covering thread is
excessively tense =
D
When using more
stretchable thread
When using less
stretchable thread
1. Adjust the bottom end of left-hand thread guide
to the engraved marker line on the front side.
2. Adjust the position of the hole of right-hand
thread guide to the left.
Standard Adjustment
5. STANDARD ADJUSTMENT
(1) Threading the machine head
(Caution) In case of the soft seams, rocking thread
take-up thread guide
is used.
E
In case of soft seams
Engraved marker line
Right
Left
Summary of Contents for MF-7800D Series
Page 64: ...60 5 Adjusting the upper knife stroke A B Standard Adjustment H21...
Page 66: ...62 MEMO...
Page 80: ...76 3 Adjusting the elastic band presser plate 0 5mm Standard Adjustment E10 A A Approx 7 5 mm...
Page 84: ...80 MEMO...
Page 94: ...90 3 Setting of SC 510 2 Change of the setting Type B Type A Standard Adjustment UT25...
Page 114: ...110 MEMO...
Page 118: ...114 2 Installing SC 510 1 Wiring SC 510 Standard Adjustment UT22...
Page 124: ...120 MEMO...
Page 134: ...130 MEMO...
Page 142: ...138 7 Feed timing of the roller A Standard Adjustment PL11 C D B...
