Union Special FS300, CS100 User Manual

Finest Quality

2-3 NEEDLE FLAT BED COVERSEAM MACHINE

FS300 SERIES

2-3 NEEDLE CYLINDER BED COVERSEAM MACHINE

CS100 SERIES

ENGINEER'SMANUAL

•

EN9424

REV. 03/19/99 From the library of: Superior Sewing Machine & Supply LLC

PREFACE

This Engineer'sManual is written tor the technical personnel who are responsible for the service and maintenance of the machine.

This manual describes "Standard Adjustment", "Adjustment Proceduresft, ~Results of lmproperAdjustment~, and other important information which are not covered by the Instruction Manual.

It is advisable to use the relevant Instruction Manual and Parts List together with this Engineer'sManual when carrying out the maintenance oi these machines.

This manual gives the "Standard adjustment" on the former page under which the most basic adjustment value and on the latter page the "Results of improper adjustment" under which errors and troubles arise.

•

From the library of: Superior Sewing Machine & Supply LLC

CONTENTS

1. SPECIFICATIONS ...•.............	•••......	•....	•.•.•••..........	•..........	•...••.•••......	••••.•••••••••••••••••••••.•••••••••••.••••.•••••••••••••••..•••••.					4
2. MOTOR PULLEY AND BELT .••••••••.••...			•.•••••.•••..........	•..•.••.......	•	;..............................................................................					5
3. MODEL NUMBERING SYSTEM ............................................................................................................................											6
4. STANDARD ADJUSTMENT .•••••••...		••••••.....••..•••••••••••••.••••...			••.•••....	•.•••....•.........	••..•..........	•.•....••••••......	•.•...•....•......•		10
{l)FS300 ...................................................................................................................................................................................................											10
1) NEEDlE FEED TIMING .......................................................................................................................................................................											10
2)ADJUSTING THE TIMING RELATION BETWEEN tHE NEEDLE BAR AND LOOPER (SYNCHRONIZATION) .................									•.••.................	••....	10
2)'SVNCHRONIZATJON.........................................................................................................................................................................											12
3) RETURNING AMOUNT OF THE LOOPER ............................................................................................................................................											14
4)HEIGHTOFTHENEEDLEBAR	............................................................................................................................................................										14
S) Cl£ARANCE BETWEEN THE LOOPER AND NEEDLE ..........................................................................................................................											16
6)ADJUSTINGAMOUNTOFTHELOOPER-AVOID ...............................................................................................................................											16
7) POSmONOFTHENEEDLEGUARD ...................................................................................................................................................											16
8) POSITION OF THE FEED DOG ...........................................................................................................................................................											18
9) SPREADER .........................................................................................................................................................................................											20
10) LOOPER THREAD CAM ....................................................................................................................................................................											22
II) POSITION OF THE PRESSER BAR .......................................................................................................................................................											22
12) POStnON OFTHENEEDLETHREAD TENSION RELEASE (WITHOUT THREAD TRIMMER) .....................................................................											24
13) POSlJION AND HEIGHT OF THE PRESSER FOOT ...............................................................................................................................											24
14) POSinONOFTHETHREADGUIDE ....................................................................................................................................................											24
<2>CS100 ..................................................................................................................................................................................................											28
1) NEEDLE FEED TIMING .......................................................................................................................................................................											28
2) ADJUSTING THE TIMING OF THE NEEDLE BAR AND LOOPER(SYNCHRONIZATION) .......................................................................											28
2) 'SNYCHRONIZINGLOOPER AND NEEDLE MOTIONS .......................................................................................................................											30
3) RETURNING AMOUNT OF THE LOOPER ................................................................................................................................................											32
4) HBGHT OF THE NEEDLE BAR	............................................................................................................................................................										34
5) POSmON OF THE NEEDLE GUARD ...................................................................................................................................................											34
6) CLEARANCE BETWEEN THE LOOPER AND NEEDLE ..........................................................................................................................											36
7) ADJUSDNG AMOUNT OF THE LOOPER-AVOID ............................................................................................................										:..................	36
8) POSmON OF THE FEED DOG ...........................................................................................................................................................											38
9) SPREADER .........................................................................................................................................................................................											40
10) LOOPERTHREADCAM ....................................................................................................................................................................											42
11) LOOPER THREAD WRAP-UP PREVENTING CAM ..............................................................................................................................											42
12) POSITION OF THE PRESSER BAR .......................................................................................................................................................											44
13) POSITION OF THE NEEDLE THREAD TENSION RELEASE (WITHOUTTHREAD TRIMMER) .....................................................................											44
14) POSITION AND HEIGHT OF THE PRESSER FOOT ...............................................................................................................................											44
15) POSITION OF THE THREAD GUIDE ....................................................................................................................................................											46
4. OlHER PRECAUTIONS ......................................................................................................................................											47
(1) POINTS TO WHICH LOCKTTTE IS APPLIED .............................................................................................................................................											47
5. TROUBLES AND CORRECTIVE MEASURES .......................................................................................................											49

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3

From the library of: Superior Sewing Machine & Supply LLC

1. SPECIFICATIONS

FS300 Series

FS322

I

FS322

I

FS332

I

FS332

Sewing speed ~

With Puller 6000 R.P .M.

6,500 S.P.M. (Max) left or right hand undertrimmer 5500

Stitch length

1.6to 2.8 mm

No. of needle

2

3

2

I

3

Needle gauge

3.2, 4.0

5.6, 6.4, 4.8

3.2, 4.0

I

4.8, 5.6, 6.4

Top covering

Without

With

Oiff. feed ratio

Gathering stitch 1:1.5

Stretching stitch 1:0.6

Needle

UY128GBS #65/025 to 90/036

Presserfoot lift

B.Omm

Lubricating oil

UNION SPECIAL Designated oil (Part No. 28604R)

CS1 00 Series

CS122

I

CS122

I

CS132

I

CS132

Sewing speed ~

With Puller 6000 R.P.M.

6,500 S.P.M. {Max)

Undertrimmer 5500 R.P.M.

Stitch lenQth

1.6to3.2mm

No. of needle

2

3

2

3

Needle gauge

3.2, 4.0, 4.8

5.6, 6.4

3.2, 4.0, 4.8

5.6, 6.4

Top covering

Without

With

Diff. feed ratio

Gathering stitch 1:1.5

Stretching stitch 1:0.6

Needle

UY12t GJS #55/022 to #90/036

Presserfoot lift

B.Omm

Lubricatina oil

UNION SPECIAL Designated oii(PM No. 28604R)

'*Depending on Devices

•

4	From the library of: Superior Sewing Machine & Supply LLC

2. MOTOR PULLEY AND BELT

FS300 Series

		50 Hz		.					so Hz
Sewing speed {s.p.m.)	Motor pulley		V belt (inch)				Motor pulley				V belt (inch)
			Fully-		Semi-						Fully-				Semi-
	outer dia. (mm)		s!bmerged		submerged		outer dia. (mm)				submerged			submerged
			type		type						type			type
6,500	140			35			120					35
6,000	125			35			105					35
			I
5,500	110			35			90					34
5,000	100			34			85					34
4,500	90			34			75					34
4,000	80			34			70					34
3,500	70			34			60					33

1)Use a UNION SPECIAL clutch motor {400W).

2)Use an M type V belt.

3)The table shows the sewing speeds obtained by the use of motor pulleys with different diameters and V belts with different lengths.

4) Note that the effective diameter of the pulley of the machine head i~ 54mn

CS100 Series

50 Hz

60Hz

			Motor pulley		v	belt (inch)		Motor pulley		V bell (inch)
		Sewing speed (s.p.m.)
			outer dia. (mm)	Fully-			Semi-	outer dia. (mm)	.	Fully-	Semi-
				submerged			submerged			subrre'lJE'f	submerged
				type			type			type	type
		6,500	145		43		40	120		41	38
	6,000		135	I	43		40	110		41	38
		5,500	120	I	41		38	100		41	38
5,000			110	I	41		38	90		39	37
•			95	I	41		38	80		39	37
		4,500		I
4.000			85		39		37	70		39	37
3,500			75		39		37	60		38	35

1)Use a UNION SPECIAL clutch motor (400W).

2)Use an M type V belt.

3)The table shows the sewing speeds obtained by the use of motor pulleys with different diameters and V belts with different lengths.

4)Note that the effective diameter of the pulley of the machine head is 57.5 mm.

5

From the library of: Superior Sewing Machine & Supply LLC

•

3. MODEL NUMBERING SYSTEM

CS100 SERIES ORDERING INFORMATION

Stitch type

Sub-class

Number of needles

Needle spacing

Devices

2 = Bot!om coverslitch

(describes typical application)

2 "'Two needle machine

32"' 3.2 mm

CC'= Chain cutter

3 =Top & bottom coverstitch

c·= Col!arette

3 "'Three needle machine

40=4.0mm

MD'=Metering device

E'=Elastic

48 =4.8 mm

TC' "'Tape culler

Basic frame style

H": Hemming

56"' 5.6 mm

TF'= Binding feed device

CS = Cylinder bed

K'= Coverseam

60=6.0mm

UT" = Thread trimmer

FS =Flat bed

L• =lap seam

64 =6.4 mm

'1-9 =Variety or devices

U'= Universal

'00·99" Variety ol sub-class

	I	I	~	I	l	I

FS332C01-3D56/TC4/ I

l

Generation		Feed type
1 =First		2 = Dlflerential
2 =Second		5 =Differential & puller
3 =Third

Stllch tongue

Represents the shape of the throat plate stitc-h tongue.

A = For short stitch length	A c;:=-
B = For medium stitc-h length	Bt:='"
C = For long stitch length	c c::::7'"
0 = For all stitch lengths, collaretle,	D='"
coverseam & elastic applications

From the library of: Superior Sewing Machine & Supply LLC

•

CS100 SERIES ORDERING INFORMATION

SUtch type

Sob-class

Number of needles

Needle spacing

Devices

2 =Bottom coverstitch

(describes typical application)

2 =Two needle machine

32"' 3.2 mm

cc·"'Chain culler

3 =Top & boHom coverstitch

C'= Co1larette

3 = Three needle machine

40= 4.0 mm

MD'=Metering device

Basic frame style

E'=Elastic

48·, 4.8 mm

TC' =Tape culler

H'=Hemming

56= 5.6 mm

TF'= Binding feed device

CS = Cylinder bed

K' = Coverseam

60=6.0mm

UT" = Thread trimmer

FS =Flat bed

L'=Lap seam

64 = 6.4 mm

'1·9= Variety of devices

U'=Universal

'00-99=Variety or sub-class

.

I

I

I

I

l

~I

I

I

CS132H01-2C32/UT2/ I

Generation		Feed type			Stitch tongue
1 =First		2 = Differential			Represents the shape of the throat plate
2 =Second		5 = Differential & puller			stitch tongue.
3 =Third					A "'For short slilch length	A~
					8 "'For medium stitch length	Be?"
					C "" For long stitch length	c =""
					D = For all stitch lengths, collarelle,	D t:::7
					coverseam & elastic applications

From the library of: Superior Sewing Machine & Supply LLC

FS300 Series

Code	Specification					Description of Sub-Class
C01	For Cellarette				Basic style
E12	For elastic tape attaching				Right hand fabric under trimmer and metering device (Upper side)
E41	For elastic taoe attaching				Elastic tape attaching with puller and metering device (Lower side) (with endless rubber)
H01	For hemming				Basic style with hem guide
L01	For lap seam				Basic style
L21	For l_ap_seam				For the top sleeve of knit fabric
C$100 Series
Code	Soecification					Description of Sub-Class
E11	For Elastic tape attaching				Right hand fabric under trimmer, (Preclosed Elastic)
	For elastic tape attaching				Fabric under trimmer, and metering device (Upper side)
E12
H01	For Hemming				Basic style with hem guide		-
H11	For Hemming				With cloth puller
H21	For Hemming				Lett hand fabric under trimmer
K01	Covering				With standard fixed seam guide, light weight fabric
K02	Covering				With adjustable seam guide for medium to heavy-weight fabrics
K11	Coverseaming				With special fold over seam guide

•

8

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Under-bed thread trimming device

Electromagnetic type

Pneumatic type

Needle

Top

Needle

Needle

Top

Thread

•~o

•~o

covering

Thread

covering

•

Code

For use on model

thread

Auto-lifter

_,

wiper

Auto-lifter

trimmer

thread

trimmer

thread

wiper

trimmer

(Mecha-

(Pneu-

trimmer

nieal)

matie)

UT1

CS122

0

0

0

UT2

C$132

0

0

0

UT3

CS122

0

0

0

UT4

CS122

0

0

0

UTS

C$132

0

0

0

UT10

FS322

0

0

0

UT11

FS332

0

0

0

UT12

FS322

0

0

UT13

F$332

0

0

0

Elastic tape metering device

Code

Description

For use on model

MD1

Metering device (upper side)

Electric single stage

FS322, FS332, CS122, C$132

MD2

Metering device (upper side)

Electric two stage

F$322, F$332, CS122, CS13~

MD3

Metering device (lower side)

Electric single stage

FS322, FS332, C$122, CS132

MD4

Metering device (lower side)

Electric two stage

FS322, FS332, C$122, C$132

Automatic tape feeding device

Code

I

Description

For use on model

TF1

Automatic tape feeding device (upper side)

For MD1, MD2

TF2

Automatic tape feeding device (lower side)

ForMD3, M04

Under-bed thread trimming device

•

Code

Description

For use on model

CC1

Pneumatic type chain-off thread cutter l Mounted horizontal venturi suction

FS322,FS332

Cloth puller

Code

Description

For use on model

PL1

Cloth puller

FS322, FS332, CS122, CS132

>

9

From the library of: Superior Sewing Machine & Supply LLC

4. STANDARD ADJUSTMENT

(1) FS300

Standard Adjustment

1) Needle feed timing	.

First screw (A) in operating direction on double eccentric (B) of feed drive assembly must be straight up, when the needle bar is at bottom of stroke.

r--

I~

B

i\

1--B

'

/

A-

il

~

f--A

-

1---

0

2)Adjusting the timing relation between the needle bar and looper (synchronization): Without gauges

When the blade point of the looper moves to the left in the rear of the needle and to th_e right in front of the needle, align the upper end of the eyelet of the left needle with the lower face of the looper so that the distance between A and B. the side of the left needle to the blade point of the looper, should be equal.

•

				4J'	A=B
		A					B
				/ca:::						¢Move to the right .
		I			'¢:JMov:e to the left		v	Vca=
				Looper					Looper	.
Allgn~LLeft needle							tl--Left needle

.0.

10	From the library of: Superior Sewing Machine & Supply LLC

Adjustment Procedures		Results of Improper Adjustment
Remove top cover, oil reservoir cover, gasket and cloth plate.	•	Needle breakage
Loosen screws (C) of sprocket (D).	•	Looper missing needle thread

•Rotate lower main shaft in operating direction clockwise, until the first screw (A) on double eccentric (B) is straight up.

•Holding pulley to prevent it from turning, rotate handwheel of upper main shaft until needles are at top of their stroke.

•Torque screw (C) to 45-46 in. lbs. (5.2-5.4Nm).

•Replace top cover, oil resevoir cover, gasket and cloth plate.

Note: Earlier machines have (4) screws.

•	Turn handwheel in operating direction until bottom of looper is	• If the timing is not correct, skip st~ching
	even with tap of needle eye. Note dimension (A)	may occur.
	Continue turning handwheel in operating direction until bottom of
	looper is even w~h top of needle sye when looper is in front of
	needle. Note dimension (8)
• If (A) is greater than (8)
	-loosen (C) on sprocket (D).
	-Turn sprocket (D) in operating direction
	-Tighten screws (C)
	-Repeat above two steps until (A)"'(8)
•	If (A) less than (B)
•	-loosen screws (C) on sprocket (D)
	-Turn sprocket (D) in reverse direction
	-Tighten screws (C)
	-Repeat sbove two s1eps until (A)"'(B)

11

From the library of: Superior Sewing Machine & Supply LLC

FS300

	Standard Adjustment
2)' Synchronization
•	Rotate handwheel in operating direction until pin in looper holder contacts gauge plate.
•	Reposition needle bar as required to set pointer of indicator gauge at "0~.
•	Rotate handwheel in reverse direction until pin in looper holder again makes contact with gauge plate.
•	A variation of (1) graduation on scale is permissible.

•

12

From the library of: Superior Sewing Machine & Supply LLC

Adjustment Procedures

Results of Improper Adjustment

o Rotate handwheel in operating direction until pin (9 contacts gauge plate e .

o Loosen screw (!) in needle bar connection & position needle bar 8 as required to set pointer 0 of indicator gauge 0 at

~a~ tighten screw (!)lightly.

oRotate handwheel in reverse direction until pin 8 makes contact with gauge plate 0 .

Note reading on gauge. A variation of (1) graduation on scale

is permissible. To adjust:

o Loosen screws 0 on looper drive sprocket €t .

o If reading is above ~a" tum sprocket towards operator.

o	If reading is below "0" tum sprocket away from operator.
o	snug screws 0 .

oContinue to check & adjust in both operating & reverse· directions until pointer 0 of indicator gauge 4D comes within

(1)graduation on scale when turning handwheel in either

direction.

o Tighten screws 0.

o Torque needle bar screw (9 to 20 inllbs.

o Skipped stitches

o Improper chaining

CD

•

13

From the library of: Superior Sewing Machine & Supply LLC

FS300

Standard Adjustment

3) Returning amount of the looper

When the looper is in the extreme right position,the distance between the blade point of the looper and the

center of the right needle is 4.4 ± 0.1 mm.

}/Right needle

V Looper

c= I

-+-+--- 4.4 ± 0.1 mm

4) Height of the needle bar

When the looper moves to the left and the blade point of the looper comes out from the left side of the left needle by 0.7 to 1.0 mm, the lower face of the looper aligns with the upper end of the eyelet of the left

needle.

•

c

-I"'-J-0.7to 1.0 mm

I/ Looper

~of---

Align/	Lett needle

14

From the library of: Superior Sewing Machine & Supply LLC

Adjustment Procedures		Results of Improper Adjustment
o Loosen the looper base setscrew 0 and adjust the returning	o	If the returning amount is large,
amount of the lOoper.		skipping stitch and tangling stitch
(Use a 5/32 inch hexagonal wrench.)		may occur and the range of the
		thickness of the cloth to be sewn is
		reduced.
	o	If the returning amount is small,
		skipping stitch and tangling stitch
		may occur.

o Loosen the needle bar holder screw 0 and adjust the height										o	If the distance of C is large, skip
of the needle bar.											stitching and tangling stitch may
(Caution) After the adjustment, check that the direction of											occur.
		the needle clamp is correct and the respective								o	If the distance of C is small, skip
		needles enter the center of the holes of the throat									stitching and tangling stitch may
		plate.									occur.
•										o	If defective stitch occurs with the
											wooly nylon thread, make the
		@		0			\\		0		distance C as small as possible.
		0							mill
		0
		0
	0	0

15

From the library of: Superior Sewing Machine & Supply LLC

FS300

Standard Adjustment

5) Clearance between the looper and needle

Clearance between the blade point of the looper and the grooves of the rightlleft needles is 0 to 0.05 mm. (Clearance of the middle needle becomes larger a liHie.)

VRight needle

Otoo.os mm	Looper
Oto0.05mm4j	===;~/~::::-;;::::~;.;;;;
	0
	Needle
Top end of looper

6) Adjusting amount of the looper-avoid

When the needle descends, the top point of the needle touches the back of the looper at the position of 213 from the upper side of the looper.

Needle desce:tlr~i>13

Back of looper

t113

7) Position of the needle guard

<D Rear needle guard

oThe height of the rear needle guard is in the position that the rear needle guard is 1.2 mm above the top of the needle when the looper moves to the left as shown in the figure.

•o The longitudinal position and inclination of the rear needle guard are in the position that when the right side of the respective needles comes to the blade top of the looper, the top of the needle slightly touches the rear needle guard.

<?

~~!.:.;==~t.2mm

guard

Slightly touch

® Moving needle guard

oWhen the looper advances, the clearance between the needle and the moving needle guard is 0.05 to

0.13mm.

==J~;;:~=t0.05to0.13mm

16

From the library of: Superior Sewing Machine & Supply LLC

			Adjustment Procedures					Results of Improper Adjustment
	o Loosen the looper base setscrew 0 and adjust by moving						o If the clearance is too large, the loop
	the looper base back and forth.							of the needle thread is not scooped
								and the back of the looper hits
								strongly the top point of the needle
								which causes the damage of the
								needle point
							o If the clearance is too small,
								skipping stitch will·occur due to the
								damage otthe tip of the looper, the
								needle breakage, and the large
								clearance between the back ot the
								.
								looper and the needle.
			o	Loosen the two screws G and			o	If the amount of the avoid is large,
				adjust by rotating the eccentric pin				the clearance of the back of the
				8.				looper and the needle becomes
0				Amount of the avoid increases in				large, and skipping stitch and
				the direction of+.				tangling stitch will occur.
			o	Amount of the avoid reduces in the			o	If the amount of the avoid is small,
				direction of-.				the needle hits strongly the back of
			(Caution) After the adjustment,					the looper. This causes the damage
				check	again	the		of the needle point, the needle
				clearance between the				breakage and the damage on the
				blade point and		the		back of the looper.
				groove of the needle.
			o Loosen the screwO and adjust the-				o	If the returning amount is large,
				height and inclination of the r~ar				skipping stitch and tangling stitch
				needle guard 0. Loosen the screw				occur, and the range of the
				G'!> and adjust the longitudinal				thickness of the cloth to be sewn is
•				position of the rear needle guard				reduced.
				0.			o	If the returning amount is small,
			(Caution) Check that the			rear		skipping stitch and tangling stitch
				needle guard does not				occur.
				break the loop of the
				needle	thread	by
				touching the groove of
				the needle.

oLoosen the screw Gt and adjust the clearance between the moving needle guard fD and the needle.

(Caution) Check that the needle is never caught between the moving needle guard and rear needle guard in any case.

17

From the library of: Superior Sewing Machine & Supply LLC

FS300

Standard Adjustment

8} Position of the feed dog

o The clearance of the left/right sides of the feed dog should be equal in the slots of the throat plate.

oAt the maximum travel, the clearance of the main feed dog and differential feed dog is equal to A= A',8

:8'.

o The height of the teed dog is 1.0 mm at the top of their stroke.

o The tilt of the feed dog is parallel to the throat plate when the needle bar is at the highest position.

1.0mm

•

18

From the library of: Superior Sewing Machine & Supply LLC

		Adjustment Procedures			Results of Improper Adjustment
Open the cover located at the rear side of the needle entry.				o	If the letvright positions of the feed
o	Adjust the longitudinal position of the main feed dog after				dog are incorrect, the left/right sides
	loosening the nut@) and rotating the eccentric nut ID.				and the throat plate will wear out.
o	Adjust the longitudinal position of the differential feed dog			o	Heating and abnormal noise will be
	after loosening the nut Q) and rotating the eccentric nut 0.				produced.
				o The feed components wiH wear out
					early. And, the looseness, bending
					and abnormal noise will be
					produced.

o Adjust the inclination of the feed dog after loosening the screw			o If the inclination of the feed dog is
4D and rotating the eccentric shaft inside with a slit-screwdriver			raised toward you, starting of the
through the hole ~.			workpiece will be affected.
			o If the inclination of the feed dog is
			towered toward you, it may cause
			the irregular stitching and
			puckering.

•	o	Loosen the screw G> and adjust the height of the main feed	o	If the position of the feed dog is high,
		dog@).		it causes the return feed, skip
	o	Loosen the screw §) and adjust the height of the differentia!		stitching and defective chain-off.
		feed dog @1.	o	If the main feed dog, differential feed
				dog and throat plate come in contact
				each other, it will cause the
				breakage.
			o If the position of the fe:ed dog is low,
				the stitch length becomes short
				when the sewing is finished.

19

From the library of: Superior Sewing Machine & Supply LLC

FS300

Standard Adjustment

9) Spreader

(!)Timing

Descend.[!,

@Stroke

•..

Highest point

~

2.5 ± 0.1 mm c~~~~~g~~~~

l';"'''

Direction o1 cloth feeding fl..

,

,,

.:::0

Return

~~--.--..~

,,

Just when the needle descends 2.5 mm from the

19± 0.1 mm

highest point of the needle bar, the spreader

begins to return from its extreme left position.

®Position of spreader

II

~

o

The height is 11.5 ± 0.2 mm (4.0 + 3.2

5.5 ± 0.1

mm ..,.-JIHI

gauge). (10.8 ± 0.2 mm for4.8 mm,

5.6 mm. and 6.4 mm gauges.

o When the spreader is in the extreme left position,

11.5 :± 0.2 mm (10.8 ± 0.2 mm throat

the distance between the center of the left needle

plate for 4.8 mm or

and the top blade of the spreader is 5.5 ± 0.1 mm.

more needle gauge)

Left needle

o

When the spreader returns to the right, the

0.3 to

~j=ii::;:f~i,~o~o'::;:;/

clearance between the spreader and the left needle

0.5 mm f

~Return

is 0.3 to 0.5 mm.

@Fixing spreader thread guide

Spreader

o

When the spreader is in ~he extreme right position,

the top blade of the spreader__should be between

left side and middle of·the spreader thread guide

Extreme right

groove.

o The height is 0.4 to 0.8 mm from the surface of the

0.4to

spreader.

\

•

o.a mm

Top blade should be

Show spreader at

between left side and

extreme right position

middle of the groove.

when setting height

®Needle clamp spreader thread guide

Fixing spreader

o When the needle bar is in the lowest position, the

clearance between the needle clamp spreader

thread guide

thread guide and the upper face of the fixing '

spreader thread guide is 4.0 ± 0.5 mm.

o

The center of the hole of the thread guide aligns

with the left side of the fixing spreader thread guide

groove.

Needle clamp spreader thread guide

20

From the library of: Superior Sewing Machine & Supply LLC