Dual Stitch

NR/NRE9803-WD, NW8803-WD

General Points* Additional parts
1) Thread tensions - 6 pcs.

5) Exclusive Thread Eyelet

2) Eye Guard

6) Exclusive Spreader mechanism3) Exclusive Presser Foot

7) Exclusive Spreader Looper4) Short Stitch Needle Plate

* About Spreader Mechanism
1) Change the Collar together with WasherCollar

2) Fix the Lever like below

LeverHorizontal

3) Move thread eyelet from needle clamp. to machine head

Thread Eyelet* Position of thread eyelet pipe
35 mm20 mm5 mm

Dual Stitch

NR/NRE9803-WD, NW8803-WD

Half & Half cover stitch
Procedure for modifying and adjusting* Use only WOOLLY thread.

1. TIMING POSITION OF SPREADER

Adjust like this.
It is necessary to micro-adjust
during the checking of thread condition.

2. POSITION OF LEVER OF THE SPREADER

Adjust like thisHalf & Half

3. THREADING AND PARTS POSITION

Spreader Eyelet Upper

Spreader Support Looper

4. POSITION OF SPREADER SUPPORT LOOPER
4-1. Correct Position of Right to Left
Gauge : 7/32"

Adjust like this
1/3 closer to right needle between
center needle and right needle.

Spreader Support Looper

Gauge : 1/4"

Adjust like thisAlmost center ( little bit right ) between
center needle and right needle

Half & Half

4-2. Hight
Center Needle

When needle is at top dead point,
upper part of thread eyelet hole andtip of the center needle are inthe same hight.

Spreader Support Looper

4-3. Front - Back position
Left Needle
When spreader looper is left dead point,
it has 0.8 mm space between
left side of left needle andright area of thread eyelet hole of Spreader
Support looper.

Spreader Looper（0.8ｍｍ）

5. POSITION OF SPREADER LOOPERSpace between Spreader Support Looper
and Spreader Looper is 0.1 mm

5-1. Upper - Lower Position

0.1 mmHalf & Half

5-2. Position for Front - Back
When spreader looper is moving fromright to left, the space between
the left needle andthe left edge of the spreader looper is 0.5 mm

0.5ｍｍ

5-3. Position for Right - Left
When spreader looper is at left dead point,
distance between
left edge of spreader looper andleft needle is 5.5 ~ 6.0 mm .

5.5 ~ 6.0 mm

6. POSITION OF SPREADER EYELET UPPER
6-1. Upper - Lower Position
Spreader Eyelet Upper

Fix like this6-2. Position Relation
When spreader looper is left dead point,
it must be same vertical position
betweencenter hole of upper spreader eyelet
andcenter hole of spreader support looper.

Half & Half

7. RE-ADJUSTING AFTER THREADINGUSE Only WOOLLY Thread

POINT 1
Please check whether Top Point of Spreader Support Looper is touching
the Green Color Thread or not
No. 1 : UP or DOWN !

If not,No. 3

No. 2 : RIGHT or LEFT !

No. 1
No. 2
No. 3

Adjusting the height of Spreader Eyelet Upper.
Checking the position of Spreader Support Looper.
Checking the timing between needle and Spreader Looper.

Half & HalfPOINT 2
Please check whether the pink thread is positioned on the back side of the center needle

If not,* Adjusting the height of Spreader Support Looper. ( 4-2. )* Adjusting the Front-Back position of Spreader Support Looper. ( 4-3. )POINT 3
When needles go down,
check whether green thread and center needle are positioned as below picture
are located as the photo or not!
Upper part of the green thread is located at back side of the center needle.

Bottom part of the green thread is located at the FRONT SIDE of Center Needle.
If not,* Check the timing between needle and upper spreader eyelet .
* Check the stitch length.
Recommended Stitch Length : 1.4 mm ~ 1.8 mmmust use SHORT STITCH NEEDLE PLATE.
Half & Half

Dual Stitch

RX/REX-9803-WD, WX-8803-WD

All & Half
Procedure for Changing and Adjusting* The is only for woolly thread
In case of SPUN thread, re-adjust for thread tension
condition and the timing between needle and thethread looper.

1. TIMING POSITION OF SPREADER

Adjust like this
It is necessary to micro-adjust in this range
while checking of thread condition.
Aｌｌ ＆ Half
All ＆ All
Same Adjusting

2. LEVER POSITION OF SPREADER

Adjust like thisAｌｌ ＆ Half
All ＆ All
Same Adjusting

All & Half

3. THREADING AND PARTS POSITION

Spreader Eyelet Upper

Spreader Eyelet Lower

4. DIFFERENCE OF THE PARTS
and< Half & Half >< All & Half, All & All >Spreader Support Looper

Spreader Eyelet Lower

5. POSITION OF SPREADER LOOPER
5-1. Upper - Lower Position* Same adjusting method as Half & Half.

5-2. Height

Left Needle
When needle is top dead point, space is 1 mm
betweenTop of Left Needle
andTop surface of Spreader Looper.

1 mm

All & Half

5-3. Position for Front - Back
But, need to be re-adjusted, due to movement change* Same Adjusting Way as Half & Half.

0.5ｍｍ

Aｌｌ ＆ Half
All ＆ All
Same Adjusting

5-4. Position for Right - Left
But, need to be re-adjusted, due to movement change* Same Adjusting Way as Half & Half.

Aｌｌ ＆ Half
All ＆ All
Same Adjusting

5.5 ~ 6.0 mm

6. POSITION CHANGING OF DRIVING SHAFT
Move the Drive Shaft to the LEFT, by moving ofthe Bracket.
It is possible to prevent Skip Stitch, by moving thethread eyelet to the LEFT.
BracketDrive Shaft
Aｌｌ ＆ Half
All ＆ All
Same AdjustingAll
All && Half
Half

7. POSITION OF SPREADER EYELET - UPPER AND LOWER
Adjust like thisDo not adjust both spreadeyelet to move so deeply,
which causes to make SkipStitch.

POINT
When Needles go down,
Please check whether the position of the green thread and the center needle islocated as the photo or not!
The upper part of the green color thread is located in front of the center needle

The bottom part of the green color thread is locate on the back side of the center needle.
If not,* Check the timing between the needles and the spreader eyelet.

All & Half

Dual Stitch

NR/NRE9803-WD, NW8803-WD

All & All
Procedure for Changing and Adjusting* The following Changing and Adjusting are onlyfor WOOLLY thread. In case of SPUN thread,
re-adjust the thread tension condition andthe timing between the needles andthe spreader looper.

1. TIMING POSITION OF SPREADER

Adjust like
It is necessary to micro-adjust in this range
while checking of the thread condition.
Aｌｌ ＆ Half
All ＆ All
Same Adjusting

2. LEVER POSITION OF SPREADER

Adjust like thisAｌｌ ＆ Half
All ＆ All
Same Adjusting

All & All

3. THREADING AND PARTS POSITION

Spreader Eyelet Upper

Spreader Eyelet Lower

4. PARTS DIFFERENCE BETWEEN< Half & Half >and< All & Half, All & All >Spreader Support Looper

Spreader Eyelet Lower

5. POSITION OF THE SPREADER LOOPER
5-1. Upper - Lower Position* Same adjusting method as Half & Half.

5-2. Height

Left Needle
When needle is top dead point, the space is 1 mm
betweenTop of Left Needle
andTop surface of Spreader Looper.

1 mm

All & All

5-3. Position of Front / Back
* Same Adjusting method as Half & Half.

But, need to be re-adjusted, due to the change in movement

0.5ｍｍ

Aｌｌ ＆ Half
All ＆ All
Same Adjusting

5-4. Position for Right - Left
* Same Adjusting method as Half & Half.

But, need to be re-adjusted, due to the change in movement

Aｌｌ ＆ Half
All ＆ All
Same Adjusting

5.5 ~ 6.0 mm

6. POSITION OF DRIVING SHAFT
Move the Driving Shaft to the LEFT, by moving ofthe Bracket.
It is possible to prevent Skip Stitch, by moving thethread eyelet to the LEFT.
BracketDriving Shaft
Aｌｌ ＆ Half
All ＆ All
Same Adjusting

All & All

7. POSITION OF SPREADER EYELET - UPPER AND LOWER
The pink color thread is located in front of the center needle.
Adjust like this photo.

Green color thread is located at BACK SIDE of Center Needle.

8. OTHER* Using only the upper spreader eyelet, it can make standard cover stitch

All & All

Special Dual Stitch

NR/NRE9803-WD, NW8803-WD

All & Half
Reversed All & Half is also possibleafter the changing of threading to Spreader Eyelet Lower
with further -adjustment.

Reversed All & Half

Standard All & Half

POINT
When the Needles go DOWN ,Green Color Thread is located BACK SIDE of Center Needle.
* Beautiful Stitch Formation can be made with using SPUN thread and longer stitch length.

Special Dual Stitch

Half & Half
Two more possible stitch formation,adjustment.

by changing of threadingwith further* Thread the green thread into thisEyelet hole.

Half & All ( left side - half )Half & Reversed All ( left side - half )Green Color Thread is located
FRONT SIDE of Center Needle.

Green Color Thread is located
BACK SIDE of Center Needle.

Special Dual Stitch