Presser Foot And Feed Dog; Height Of Feed Dog; Inclination Of Feed Dog; Chain Looper Thread Cam - JUKI MO-2404 Instruction Book

0 . 8 m m
O . 5 m m
I h r o a t
p l a t e
* Height of feed dog
1. Feed dog O is usually set so that its teeth protrude about
0.8 mm from the throat plate surface at the highest point in
its trajectory. Increase the protrusion for heavy-weight
materials or reduce it for light-weight materials.
2. Use setscrew O
to adjust the protrusion of the feed dog
t e e t h .
3. Using setscrew O
, make adjustment so that differential
feed dog @ is level with the main feed dog.
4. Adjust the height of auxiliary feed dog O by setscrew @
so that it is 0.5 mm lower than the main feed doe.
* Contact of the presser foot with the throat plate
top surface
Usirrg adjust screw @ , perform adjustment so that the sole of
the presser foot evenly comes in contact with the top surface
of the throat plate when presser foot O comes down.
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* Inclination of feed dog
1. Loosen screw O
, and turn eccentric shaft O in the
arrowed direction to make the feed dog front up or turn it
in the reverse direction to set the feed dog front down.
2. The feed dog should be levelled when the dot engraved on
the eccentric shaft faces exactlv to the ieft.
i
o
F r o n t u p
1 7. CH A I N L OO PE R TH R E AD CAM ( MO- 2416)
Loosen setscrew @ , and adjust chain looper thread cam O so
that 6
of the chain looper thread cam meets the bottom of
looper thread cam pawl O when the needle is at its highest
position. Make sure that the chain looper thread cam releases
the looper thread at the moment the needle point starts to go
below the bottom of the throat plate under this condition.
.
| | Overedge
'"'""Kf*
Throat
p l a t e
1 8. T HR E AD GU I D E AN D L OO PER TH RE AD TAKE.U P
The table below shows the standard demensions of the individ-
ual thread guides and looper thread take-ups when the upper
looper has gone back farthest.
3ode
MO-2404
MO-2416
(Standard)
MO-2414
(Standard)
MO-2405
(Hemming
bottom)-
MO-2404
(Soft chain)
G
w
G
w
G
w
G
w
7 4 7 9 . 5
B 7 4 7 9
C
2 2 . 5
D
6 3 . 5
E 4 0 . 5
F 26
C
3 7 . 5
4 5 4 5
3 7 . 5
4 5 4 l 7
H
t2
I J
1 8 . 5 9 . 5
t2 l 3
2 6 . 5
6 . 5
2 4 . 5
3 3 . 5 2 E . 0
3 3 . 5
J
2 3
I
K
L
74
M 6 3
l
- 8 -
G : General thread W : Wooly thread
(Unit : mm)