Knives And Overedge Width; Needle Guard; Resharpening The Lower Knife; Height Of The Lower Knife - JUKI MO-2404 Instruction Book

* Height of the lower knife
Loosen setscrew €) and adjust the height of lower knife O so
that its edge is flush with the throat plate surface.
* Height of the upper knife
Loosen setscrews O , O and perform adjustment so that upper
k n i f e @ o v e r l a p s l o w e r k n i f e O
b y 0 . 5 t o I m m w h e n t h e
upper knife is at its lowert point.
* Overedge width
O v e r e d g e w i d t h s o f 1 . 6 t h r q u g h 6 . 4 m m a r e p r o v i d e d b y
changing the parts or by using subclass models. (The overedge
width will be slightly larger than the knife cut width.)
T o c h a n g e t h e o v e r e d g e w i d t h l
l. Loosening setscrew @ , push lower knife O to the left and
fix it.
2. Loosen setscrew @ and move upper knife @ as required,
t h e n f i x i t .
3. Lower the upper knife to its lowest point and loosen set-
screw @ . Tighten setscrew @ when the lower knife comes
in contact with the upper knife.
(Caution) Be sure to tighten screw
G)
before operating
machine.
* Resharpening the lower knife
When the lower knife has become dull, resharpen it as shown
in the figure left.
2 0 . NE E DL E G U AR D
* For 1-Needle and 2-Needle Overedgers
An overedger is equipped with two needle guards O and O .
1 . Position needle guard O so that it lightly comes in contact
with needle O when the blade point of lower looper O has
reached the center of needle O .
2. Position needle guard O so that it is 1 mm lower than the
bottom surface of the throat piate end is distanced 0.1 mm
from needle O when the needle is at its lowest point.
* For safety stitchers
A safety stitcher has four needle guards O , O , @ and O .
1. Position needle guards tl) and O in the same manner as the
overedger explained above.
2. Position needle guard O so that it lightly comes in contact
with needle O
, and position needle guard @ so that it is
distanced 0.1 mm from needle@ when the needle is at its
iowest point.
i
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