Union Special 63900A, 63900B, 63900C, 63900D, 63900AL Manual

FOREWORD

The predominant idea behind Union Special, is to build the best industrial machines in the world. The new high speed. streamlined Class 63900 lockstitchmachines are a decided achievement along these lines. Parts are made to precision gauges. insuring complete interchangeability.

A few of the outstanding features are:

1.QUICK INSTALLATION

The average installation time required will be about 10 minutes from packing box to production sewing. if installation instructions are followed.

2.STREAMLINED DESIGN

Pleasing in appearance, this functional design provides greater stability and ruggedness. freedom from difficult-to- clean recesses. New neutral taupe finish is more restful to operator's eye.

3.SIMPLIFIED. OILING

Lubrication of these machines is automatic. Oil is supplied to all moving parts for trouble free operation. A completely adjustable, double filtered hook oiling system provided long hook life. A single, large capacity, accurately gauged reservoir, sealed against lint and dust. reduces to a minimum oiling maintenance.

4.RAPID ACCELERATION

Precision methods in the manufacture of all parts, coupled with an advanced oiling system. makes possible top operating speed almost instantaneous for higher productive rates and lower costs.

5.PUSH BUTTON CONTROL

For quick, easy adjustment of the stitch length, a large, easy-to- read indicator dial is marked in stitch lengths. plus a readily accessible nieans for adjusting the needle feed.

It is the constant aim of Union Special to furnish concisely prepared information which enables customers to procure all possible advantages from the use of UNION SPECIAL machines. The following pages discuss valuable Adjusting and Operating data.

Adjusting Instructions for Mechanics. covering Styles in this catalog. call attention to many parts which must meet exacting conditional adjustments. Illustrations are used to pinpoint areas under discussion.

Exploded views, together with explanations as to quantity, part number and name, follow the Instructions, after which, is shown a collection of sewing part combinations. with recommendations experience has prompted us to recommend for a wide range of operations.

Union Special representatives. to be found in all leading manufacturing centers, are anxious to cooperate in planning and make estimates tailored to your requirements.

UNION SPECIAL CORPORATION

Engineering Department

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		IDENTIFICATION OF MACHINES
.	Each UNION SPECIAL machine is identified by a Style number on a name plate on the
machine.		Style numbers are classified as standard and special. Standard Style numbers
have	one	or more letters suffixed, but never contain the letter 11 2 11 • Example: "Style

63900 A". SpecialStylenumbers contain the letter"Z". When only minor changes are made

in a standard machine,	a 11 2 11 is suffixed to the Standard Style number. Example: "Style
63900 AZ".
Styles of machines similar in construction are grouped under a Class number, which
differs from the style	number, in that it contains no letters. Example: "Class 63900 11 •

APPLICATION OF CATALOG

This catalog applies specifically to the Standard Styles of machines as listed herein. It can also be applied with discretion to some Special Styles of machines in this class. Reference to direction, such as right, left, front, back, etc., are given from the operator's position while seated at the machine. Operating direction of handwheel is toward the operator.

STYLES OF MACHINES

High Speed Streamlined Long Arm Needle Feed Lockstitch Machines, One Needle, Light, Medium and Heavy Duty, Drop Feed, Rotary Hook, Horizontal Hook Shaft, Push Button Stitch Regulator, Slotted Segment -for Adjusting Needle Feed, Stitch Length Indicator, One Reservoir Enclosed Automatic Lubricating System, Head Oil Siphon, Adjustable Hook Oil Control, Needle Bearing Adjustable Feed Eccentric, Needle Bearings for Take-up Lever and Needle Bar Driving Link, Feed Timing on Lower Main Shaft, Needle Feed Timing on Upper Shaft, Maximum Work Space to Right of Needle Ba:r 11 1/8 Inches.

63900 A Equipped with disc tension for needle thread. For miscellaneous plain seaming operations on light and medium weight work. 1 9 / 64 inch needle bar travel. Type 183 GXS or 183 GYS needles. Seam specification 30 l -SSa-1. Specify Style number, stitches per inch, thread size, needle type and size. Maximum recommended speed 5500 R.P.M.

63900 B Equipped with disc tension for needle thread. For miscellaneous plain seaming operations on medium and medium heavy weight work. 1 13/ 64 inch needle bar travel. Type 180 GXS or 180 GYS needles. Seam specification 301-SSa-1. Specify Style number, stitches per inch, thread size, needle type and size. Maximum recommended speed 5500 R.P.M.

63900 C Equipped with a rotary tension for needle thread. For miscellaneous plain seaming operations on light and medium weight work. 1 9/64 inch needle bar travel. Type 183 GXS or 183 GYS needles. Seam specification 301 - SSa- 1. Specify Style number, stitches per inch, thread size, needle type and size. Maximum recommended speed 5500 R.P.M.

63900 D Equipped with a rotary tension for needle thread. For miscellaneous plain seaming operations on medium and medium heavy weight work. 1 13/64 inch needle bar travel. Type 180 GXS or 180 GYS needles. Seam specification 301-SSa-1. Specify Style number, stitches per inch, thread size, needle type and size. Maximum recommended speed 5500 R.P.M.

63900 AL Same as Style 63900 C except fitted with a. 025 inch eccentric (. 050 inch throw) feed driving shaft.

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NOTE: For the number necessary to complete the Styling of these 63900 machines, refer to Pages 6 and 7. The number indicates a certain sewing combination - presser foot . throat plate and feed dog. Specify the needle hole size if more than one is available

NEEDLES

Each UNION SPECIAL needle has both a type number and a size number. The type number denotes the kind of shank, point, length, groove, finish and other details. The size number, stamped on the needle shank, denotes the largest diameter of the blade measured in thousandths of an inch across the eye. Collectively, the type number and the size number represent the complete symbol which is given on the label of all needles packaged and sold by Union Special.

Needle Type 180 GXSor 180 GYS isrecommendedforStyles 63900 Band D, and needle Type 183 GXS or 183 GYS is recommended for Styles 63900 A, C and AL. Their description and sizes available are listed below.

Type No.

180 GXS

180 GYS

183 GXS

183 GYS

Description and Sizes

Round shank, round point, lockstitch, short length, ball eye, single groove , wide angle groove, struck groove, deep spot, ball point, chromium plated - sizes 075/029, 080/032, 090/036, 100/040, 110/044, 125/049, 140/054 , 150/060.

Round shank, round point, lockstitch,				s hort length,	ball eye,		single groove ,
wide angle groove, struck groove,				deep spot,	chromium		plated - sizes
075/029,	080/032,	090/036,	100/040,	110/044, 125/049,		140/054,		150/060 w

Round shank, round point, lockstitch, extra short length, ball eye, single

groove,	wide angle groove, struck groove, deep spot,	ball point,	chromium
plated -	s izes 065/025, 075/029, 080/032, 090/036,	100/040,	110/044.

Round shank, round point, lockstitch, extra short length, ball eye, single groove, wide angle groove, struck groove, deep spot, chromium plated - sizes 075/029, 080/032, 090/036, 100/040, 110/044.

To have needle orders promptly and accurately filled, an empty package, a sample needle, or the type and size number should be forwarded. Use description on label. A complete order would read: 11 1000 Needles, Type 180 GXS, Size 080/032 11•

Selection of proper needle size stiould be determined by the size of the thread used. Thread should pass freely through the needle eye in order to produce a good stitch formation.

SELECTING THE SIZE OF THE NEEDLE

The strength requirement of the seam produced is largely dependent upon the size of the thread employed. The quality of the work desired is largely dependent upon the size of the needle employed.

The following table shows the preferred size of needle for a given size and kind of thread. The choice, however, should give consideration to factors referred to above, which may dictate the selection of a needle size slightly larger or smaller than the size specified.

Cotton Thread	Mercerized Thread	Needle
Size	Size	Size
0		150/060
30	B	140/054 to 150/060
36	A	125/049 to 140/054
40	A	110/044 to 125/049
50	0	110 / 044 to 12 5 / 04 9
60	00	100/040 to 110/044
70	000	090/036 to 100/040
80	0000	080/032 to 090/036
90	0000	080/032 to 090/036
100		075/029 to 080/032

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STYLE NUMBERS NECESSARY TO COMPLETE STYLING OF 63900 MACHINES

** Only Style numbers available for Style 63900 AL.

(AFTER EACH STYLE NUMBER IS LISTED THE PRESSER FOOT, THROAT PLATE AND FEED DOG MAKING UP THE SPECIFIC STYLE. WHERE MORE THAN ONE PART NUMBER IS SHOWN FOR A SPECIFIC STYLE, ONLY ONE WILL BE FURNISHED WITH EACH MACIIINE. IN ALL CASES, THE STYLE NUMBER WILL BE LISTED AND THE PRESSER FOOT, FEED DOG AND THROAT PLATE MUST ALSO BE LISTED ON S. R.)

STYLE					STITCH
NUMBER		PRESSER FOOT	FEED DOG	THROAT PLATE	RANGE
**	1	61920 L	61926 D	*61928 B	12-16
**	2	61920 S	61926 D	*61928 B	12-16
* * 2- A		L440 A
**	2- B	61920 M
**	3	61920 B	61926	*61928	11-18
**	3- A	61920 S
* *	4	61927 A	61926 A	*61928 A	11-18
**	4-A	61320 P
**	4 - B	61420 R
**	4-C	61920 B
	5	61420 BT	61905 B- 063 or 073	61924 B	7-18
	5- A	L440 A	or 083
	6	61920 F	61905 F-063	61924 C	7-18
**	7	61920 J	61926	*61928	11-18
**	7-A	L471 A
**	7-B	61920 P
	8	61920 B	61905 J-063	61924 J	7-18
	9	61920 J	61905 J-063	61924 J	7-18
	9-A	L471 A
	10	61920 A	61905 C-073	61924 C	7-18
	10-A	61920 S
	11	61920 C	61905 C-073	61924 C	7- 18
	12	61920 S	61905 K-073 or 083	61924 K	7-18
12-A		61920 A
12-B		61320 P
13		61920 J	61905 E-073	61924 E	7-18
14		61920 J	61905 G-073 or 083	61924 G	7- 18
15		61920 A	31905 B-063 or 073	61924 B	7-18
			or 083
16		61920 R	61905 J-063	61924 J	7-18
**17		61920 N	61926 D	*61928 B	12-16
**18		61420 BT	61926	*61928	11-18
**18-A		61920 C
1<*19		L310 A	61926	*61928	11-18
20		61320 P	61905 E-073	61924 E	7- 18
20-A		61420 BT
20-B		L440 A
**21		61920 P	61926 C	* 61928 B	12-16
**21-A		61920 S
**21-B		61920 L
i:*21-C		61420 BU
**22		61920 M	61926 C	61928 B	12-16

* Needle hole in throat plate (. 053 needle slot)

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From the library of: Superior Sewing Machine & Supply LLC

STYLE		PRESSER FOOT						STITCH
NUMBER				FEED DOG		THROAT PLATE		RANGE
23		61420	BU	61926	H	# 61928 I-1 or II - 050		9-18
2:3 - A		61920 S
24		61420		61D05	K- 073 or 083	61924	I<	7- 18
25		61420	BT	6190	M- 063	61924	E	7- 1 8
26		61920	B	6190	C - 073	61924	C	7 - 1 8
,;,, 27		61920	B	61926	C	* 61928 B		1216
28		61920	B	61905	E - 073	61924	E	7 - 1 8
28	- A	61920	A
29		61420	BT	61905	J - 063	61924	J	7· 1 8
*'~ 30		61920	L	61926		•• 6192 8		11 -18
*''30- A		61920	A
*~'31		61420	AP	61926		*6192 8		11 - 18
**31 - A		61920	M

•!<* 32	61920 R	61926
,,,,3 3	61920 1\1	61926 E
,,,,34	61920 B	61926 T
** 35	61920 1\1	61926 F
·~~'36	61420 BV	61926 C
**36- A	61420 BY
,,,:,3 7	61420 BT	61926 D
38	61920 L	61905 J - 063
*••39	61920 D	61926 D
40	63920 C	61926 R
** 76	L460 A	61926 A
*~' 77	L427 A	61!)26
78	61220 I<	61905 II-063 or 083
79	61920 T	61926 B
80	L391 A	61926 B
81	61920 T	61926 B
82	L391 A	61926 B
* * 83	L347 A	61926 A
* * 84	61920 U	L379 A
85	61220 K	L582 A
86	61420 CM	L582 A
86- A	61420 H
"' *88	61920 G	61926 G
·~•!<89	61920 K	61405 AC
**90	61920 G	61926 G
,,,,91	61920 K	6140 5 AC

* 61928		11 - 18
""61928 C		1216
* 61928		1118
''61928 C		12-16
•'61928 B		1216
*61928 B		12 - 16
	61924 J	7-18
* 61 9 28 B		12-16
•!< 61928 R		7-20
*6 1D 28 A		11 - 18
*61 9 28		1118
	61 92 4 H	7-18
	6192 8 M-073	6- 10
#63928 E		6 - 10
	61928 1\1-053	6 - 10
	61928 1\1- 053	6-10
•• 61028 A		11-18
t	L378 A	1218
t	L581 A	7 · 18
t	L581 A	7 - 18
	61928 G-060	10-25
	61928 K-060	10 - 25
	61928 G - 050	7 - 20
	61928 K- 050	7 - 20

* N eedle	hole in throat plate {. 053	needle slot)
# Needle	hole i n throat plate(. 07 3 needle slot)
t Needle	hole in throat plate (. 063	needle slot)

NOTE: Style No. 88 is actua lly 29480 CM, Style No. 89 is actually 29480 CN, Style No. 90 is act ually 29480 EN and Style No. 91 is actually 29480 EP.

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IDENTIFYING PARTS

Where the construction permits, each part is stamped with its part number. Parts too small for a complete catalog stamping are identified by letter symbols which distinguish one part from another that is similar in appearance.

Part numbers represent the same part, regardless of catalog in which they appear.

IMPORTANT! ON ALL ORDERS, PLEASE INCLUDE PART NAME AND STYLE OF MACHINE FOR WHICH PART IS ORDERED.

ORDERING OF REPAIR PARTS

ILLUSTRATIONS

The arrangement of this catalog is to facilitate easy and accurate ordering of Class 63900 replacement parts.

Seven		exploded view	plates cover the		Standard Styles listed in this		catalog. Each plate
presents	a sector of the		machine, parts being aligned as			in their assembled position. Small
keyline	views show by a		blackened area		exactly where	the parts being	discussed	fit in the
assembled		machine. On the		page opposite	the illustration	will be found a	listing of	the parts
with their		part numbers,		descriptions and the number		of pieces required in the particular
view being shown.

Numbers in the first column are reference numbers only, and merely indicate the position of the part in the illustration. Reference numbers should never be used in ordering parts. Always use the part number listed in the second column. Each exploded view plate carries a reference number for each part available for sale.

	Subassemblies, which		are sold complete, or by separate part, are in		a bracket or a
solid line box on the picture plate. Component parts of sub-assemblies,				which can be furnished
for	repairs, are	indicated	by indenting their descriptions under the	description of the main
subassembly. Example:
20	29126	DD	Feed Driving Eccentric and Connecting Rod Assembly			- - ---- 1
21	61437	K	Feed Drive Eccentric(. 092 inch throw)---------------			1
22	61438 B		Feed Dri ve Eccentric Connecting Rod- - - -		- - - - - - - -	- - - - - 1
23	88		Set Screw- - - - - - - - - - - - - - - - - -	- - - - - - -	- - - - - - - -	- - - - - 1
24	660-225		Needle Bearing - - - - - - - - - - - - -	- - - - - -	- - - - - - - -	- - - - - 1
	In those cases where		a part is common to all of the machines covered		by this	catalog,

no specific usage will be mentioned in the description. However, when the parts for the various machines are not the same, the specific usage will be mentioned in the description, and, if necessary, the difference will be shown in the illustration.

At the back of the book will be found a numerical index of all the parts shown in this book . This will facilitate locating the illustration and description when only the part number in known.

USE GENUINE NEEDLES AND REPAIR PARTS

Success in the operation of these machines can be secured only with genuine UNION SPECIAL Needles and Repair Parts as furnished by the Union Special Corporation, its subsidiaries and authorized distributors. They are designed according to the most approved scientific principles, and are made with utmost precision. Maximum efficiency and durability are assured.

Genuine needles are packaged with labels marked ~ . Genuine repair parts are stamped with the Union Special trademark, U S Emblem. Each trademark is your guarantee of the highest quality in materials and workmanship.

TERMS

Prices are strictly net cash and subject to change without notice. All shipments are forwarded f. o. b. shipping point. Parcel Post shipments are insured unless otherwise directed. A charge is made to cover the postage and insurance.

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CLASS 63900 (Page 1)

RECOMMENDED STYLE NUMBERS FOR SPECIFIC OPERATIONS

				STYLE	PRESSER		FEED		T HROAT
	ARTICLE AND OPERATION			NUMBER	FOOT		DOG		PLATE	REMARKS
	BAGS, Plastic Clothing, Shoe and Damper								61928 M-073
	Binding			79	61920	T	61926 B
				80	L391 A		61926 B		# 63928 E
	Hemming			33	61920	M	61926 E		:,,'< 61928 C
	BLOUSES			1	61920	L	61926 D		* 61928 B
	Runstitch collars
	Piece front facings and attach facings			1	61920	L	61926 D		* 61928 B
	Hem right and left front facings			35	61920	M	61926	F	"'"61928 C
	Edgestitch right and left front facings			83	L347	A	61926	A	* 61928 A
	and collar
	Attach collar			7	61920	J	61926		* 61928
	COATS, Children's
	Make liner,	make darts,	JOm
co	shoulders,	set sleeves,	close	21-B	61920	L	61926	C	* 61928 B
	sleeve and sides
	Make collar and cuffs			21 - B	61920	L	61926	C	"" 61928 B
	Seam, gore,	join side seams, sew		27	61920 B		61926	C	*61928 B
	darts and plaits and join shoulders
	Attach lining to sleeves and front			27	61920	B	61926	C	*61928 B
	facings
	COATS, Ladies' Car
	Make lining,	join sleeves, shoulders		1	61920	L	61926 D		""' 61928 B
	and side and back seams
				37	61420	BT	61926 D		"'" 61928 B
	Sew knit wristlets and collar to lining			8	61920 B		61905 J-063		61924 J
	Set pockets,	make darts,	sew knit	8	61920 B		61905 J-063		61924 J
	facing to pocket backs
				21-B	61920 L		61926 C		* 61928 B
	Set sleeves,	close sleeves, attach		8	61920 B		61905 J-063		61924 J
	collar, sew lining to front facings
				38	61920 L		61905 J - 063		61924 J
	Edgestitch front and collar			33	61920 M		61926 E		""' 61928 C

#Needle hole in throat plate (. 073 inch needle slot)

*Needle hole in throat plate (. 053 inch needle slot)

From the library of: Superior Sewing Machine & Supply LLC

1--'

0

	CLASS 63900 (Page 2)
ARTICLE AND OPERATION	STYLE	PRESSER		FEED		THROAT
	NUMBER	FOOT		DOG		PLATE		REMARKS
COATS, Boy's Sport
Make lining, gore sleeves, set
sleeves, close shoulders and side
seams	1	61920	L	61926	D	*61928 B
Make collar, gore sleeves, join	21-B
shoulders and set pockets		61920	L	61926	C	*61928	B
	27	61920	B	61926	C	*61928	B
Attach lining to front facings, seam	21-B
back, close sleeves and side seam		61920	L	61926	C	*61928	B
Edgestitch front and collar	33	61920	M	61926	E	*61928	C
COATS, Sport and Suit
Seam sleeves, elbow seams, sleeve
linings, seam back, side seams,
front facings to lining, pocket	3-A
facings		61920	S	61926		*61928
Hem yoke lining	1	61920	L	61926	D	*61928	B
	1	61920	L	61926	D	*61928	B
COATS, Men's Top and Overcoats
Make lining and back yoke	1	61920	L	61926	D	*61928	B
Close and cord elbow seams and	21-A
underarm seams		61920	S	61926	C	*61928	B
	21-C	61420	BU	61926	C	*61928 B
	21-B	61920	L	61926	C	*61928 B
Sew lining and tape to vent	21-A	61920	S	61926	C	*61928	B
Close back seam, side seams and	21-B	61920	L	61926	C	*61928	B
	21-A
cord stitch		61920 S		61926 C		*61928 B
Edgestitch front lapels and collar	21-B	61920	L	61926	C	*61928	B
	36	61420 BV		61926	C	*61928 B
	36-A	61420	BY	61926	C	*61928	B
	21-B	61920	L	61926	C	*61928 B

* Needle hole in throat plate (. 053 inch needle slot)

From the library of: Superior Sewing Machine & Supply LLC

		CLASS 63900 (Page 3)
		STYLE	PRESSER			FEED	THROAT		REMARKS
	ARTICLE AND OPERATION	NUMBER	FOOT			DOG	PLATE
	COATS, Town and Country
	Make quilted lining, gore sleeves,
	join shoulders, attach front	12	61920	S	61905	K-073 or 083	61924	K
	facings to lining
		12-A	61920	A	61905	K-073 or 083	61924	K
	Quilt lining to undercollar	12	61920 S		61905	K-073 or 083	61924	K
		12-A	61920	A	61905	K-073 or 083	61924	K
	Runstitch collar	12	61920	S	61905	K-073 or 083	61924 K
		12-A	61920	A	61905	K-073 or 083	61924	K
	Runstitch pocket flaps	12	61920	S	61905	K-073 or 083	61924	K
		12-A	61920	A	61905	K-073 or 083	61924	K
	Sew facings to pockets	12	61920	S	61905	K-073 or 083	61924	K
		12-A	61920	A	61905	K-073 or 083	61924	K
	Attach welt to right and left fronts	12	61920	S	61905	K-073 or 083	61924	K
		12-A	61920	A	61905	K-073 or 083	61924	K
.....	Attach pockets and flaps	12	61920	S	61905	K-073 or 083	61924	K
		12-A	61920	A	61905	K-073 or 083	61924	K
.....	CORSETS
	Topstitch bra cups	7-B	61920	P	61926		*61928
	Attach lace and netting to bra cups	3	61920	B	61926		*61928
	Join cups	3	61920	B	61926		*61928
	Close stay pocket, join lining	3	61920	B	61926		*61928
	Join stay panel to front panel	3	61920	B	61926		*61928
	Join bodice to front	3	61920	B	61926		*61928
	Join elastic to gore panel	3	61920	B	61926		*61928
	Join back and yoke pieces	3	61920	B	61926		*61928
	Join front, back and yoke to gore
	panel	3	61920 B		61926		*61928
	DRESSES, House
	Attach front facings, join shoulders	1	61920	L	61926 D		*61928	B
	Set pockets	7	61920	J	61926		*61928
	Sew on zipper and bottom facings	18	61420	BT	61926		*61928
	Attach rickrack to fronts	32	61920	R	61926		*61928
	Attach facing to side	7	61920	J	61926		*61928
	Finish collar facing	3 2	61920	R	61926		*61928
	Sew in darts	32	61920	R	61926		*61928

* Needle hole in throat plate (. 053 inch needle slot)

From the library of: Superior Sewing Machine & Supply LLC

		CLASS 63900 (Page 4)
		STYLE	PRESSER			FEED	THROAT
ARTICLE AND OPERATION		NUMBER	FOOT			DOO	PLATE REMARKS
DRESSES, Uniform
Close end of collar		32	61920	R	61926		*61928
Attach pockets		7	61920	J	61926		*61928
Attach right and left front facings		1	61920	L	61926	D	*61928	B
Sew collar down		7	61920	J	61926		*61928
JACKETS						c- 073
Runstitch collar,	cuffs and flaps	10	61920	A	61905		61924	C
		10-A	61920	S	61905	c- 073	61924	C
		12-A	61920	A	61905	K-073 or 083	61924	K
Attach collar and cuffs		12	61920 S		61905	K-073 or 083	61924	K
		10	61920	A	61905	C-073	61924	C
		10-A	61920	S	61905	C-073	61924	C
		12-A	61920	A	61905	K-073 or 083	61924	K
Sew down collar and cuffs		12	61920	S	61905	K-073 or 083	61924	K
		13	61920	J	61905	E-073	61924	E
""""I.'-'		14	61920	J	61905	G-073 or 083	61924	G
Gore sleeves, close sleeves, side
seam, set sleeves, shoulder joining		11	61920	C	61905	C-073	61924	C
Set pockets		12-A	61920	A	61905	K-073 or 083	61924	K
		10	61920	A	61905	C-073	61924	C
Hem bottom		10-A	61920	S	61905	C-073	61924	C
		11	61920	C	61905	C-073	61924	C
Edge stitch fronts		12-A	61920	A	61905	K-073 or 083	61924	K
		10	61920	A	61905	C-073	61924	C
		10-A	61920	S	61905	C-073	61924	C
		12-A	61920	A	61905	K-073 or 083	61924	K
Attach zippers		12-B	61320	P	61905	K-073 or 083	61924	K
		20	61320	P	61905	E-073	61924	E
		20-A	61420	BT	61905	E-073	61924	E
JACKET LININGS,	Rayon and Sateen	20 - B	L440	A	61905	E - 073	61924	E
Shoulder joining,	gore sleeves, piece
back panel, close sides and sleevP.s,							* 61928 B
set sleeves		1	61920	L	61926	D
		25	61420	BT	61905 M-063		61924	E

* Needle hole in throat plate (. 053 inch needle slot)

From the library of: Superior Sewing Machine & Supply LLC

I-' c.:,

			CLASS 63900 (Page 5)
			STYLE	PRESSER			FEED		THROAT
	ARTICLE AND OPERATION		NUMBER	FOOT			DOO		PLATE REMARKS
OUTERWEAR,		Infant's
	Make lining,	seam sleeves,
	sides and back		1	61920	L	61926	D	*61928		B
	Make collar flaps and topstitch		27	61920	B	61926	C	*61928		B
	Gore panels,	topstitch panel,
	side seam		21-B	61920	L	61926	C	*61928		B
	Attach lining to front facings,
	attach collar, attach lining to
	bottom, close sleeves		21-B	61920	L	61926	C	*61928		B
	Attach waistband and stitch
	facings down		21-B	61920	L	61926	C	*61928		B
PAJAMAS, Ladies' Woven								t
	Runstitch collar with piping		84	61920	U	L379	A		L378 A
	Sew on front facings		1	61920	L	61926	D	*61928		B
	Attach pockets		7	61920	J	61926		*61928
	Attach waistband		7	61920	J	61926		*61928
	Topstitch band		7-A	L471 A		61926		*61928
			7	61920	J	61926		*61928
PAJAMAS, Men's
	Runstitch collar		1	61920	L	61926	D	*61928 B
	Attach pockets		3	61920	B	61926		*61928
			7	61920	J	61926		*61928
	Attach collar		1	61920	L	61926	D	*61928		B
	Stitch down collar		9	61920	J	61905	J-063		61924	J
			7	61920	J	61926		*61928
	Hem cuffs		78	61220	K	61905	H-063 or 083		61924	H
PANTS, Work			21 - B	61920	L	61926	C	*61928		B
	Front and hip pocket facings
			7	61920	J	61926		*61928
	Set and cord front pockets		21-B	61920	L	61926	C	*61928		B
	Hang front pockets		22	61920	M	61926	C	*61928		B
			21-B	61920	L	61926 C		*61928 B
			23	61420	BU	61926	H	#61928 HorH-050
	Set hip pockets		78	61220	K	61905 H-063 or 083		t	61924	H
			86	61420 CM		L582 A			L581 A
			86-A	61420 H		L582 A		t	L581 A
#	Needle hole in throat plate (. 073 inch needle slot)
t	Needle hole in throat plate (. 063 inch needle slot)
*	Needle hole in throat plate (. 053 inch needle slot)

From the library of: Superior Sewing Machine & Supply LLC

....

..i:,.

	CLASS 63900 (Page 6)
	STYLE	PRESSER			FEED	THROAT
ARTICLE AND OPERATION	NUMBER	FOOT			DOG	PLATE REMARKS
PANTS. Work (Continued)	23	61420 BU		61926	H	#61928 H
Attach waistband
	23-A					or H-050
		61920 S		61926 H		#61928 H
				61926	D	or H-050
Topstitch left fly	1	61920 L				*61928	B
	23	61420	BU	61926 H		#61928 H
						or H-050
	23-A	61920	S	61926	H	#61928 H
						or H-050
Topstitch waistband	24	61420		61905	K-073 or 083	61924	K
	23	61420 BU		61926	H	#61928 H
	21-B	61920	L	61926	C	or H-050
PANTS, Boy's Dress						*61928	B
Pocket facings, set front pockets	1	61920	L	61926	D	*61928	B
Topstitch left fly	34	61920	B	61926	T	*61928
Attach waistband to fronts,
close seat seam	34	61920	B	61926	T	*61928
Topstitch waistband	21	61920	P	61926	C	*61928	B
PANTS, Dress and Slacks	21-B	61920	L	61926	C	*61928	B
(Including Wash and Wear)
Front and hip pocket facings	1	61920	L	61926	D	*61928	B
	7	61920	J	61926		*61928
Set and cord front pockets	2	61920	S	61926	D	*61928	B
Attach right and left fly	1	61920	L	61926	D	*61928	B
	1	61920	L	61926	D	*61928	B
	21-B	61920	L	61926	C	*61928	B
	17	61920 N		61926	D	*61928	B
Attach waistband	2-A	L440 A		61926	D	*61928	B
	1	61920 L		61926	D	*61928	B
Side seam and inseam	2	61920 S		61926	D	*61928 B
	1	61920 L		61926	D	*61928	B
Topstitch left fly	18	61420 BT		61926		*61928

*Needle hole in throat plate (. 053 needle slot)

#Needle hole in throat plate (. 073 needle slot)

From the library of: Superior Sewing Machine & Supply LLC

....

c.n

	CLASS 63900 (Page 7)
ARTICLE AND OPERATION	STYLE	PRESSER			FEED	THROAT
	NUMBER	FOOT			DOG	PLATE			REMARKS
ROBES. Ladies'
Bind collar and cuffs, front
panels and bottoms	81	61920	T	61926	B	61928 M-053
Hem bottom	82	L391	A	61926	B	61928	M-053
	31	61420	AP	61926		*61928
Sew collar down	31-A	61920	M	61926		*61928
	9	61920	J	61905	J-063	61924	J
SHIRTS, Dress and Sport	9-A	L471	A	61905	J-063	61924	J
Runstitch collar	1	61920	L	61926	D	*61928	B	1	/ 4 inch margin
Topstitch collar	3	61920	B	61926		*61928		3	/.16 inch margin
	4	61927	A	61926	A	*61928	A	1	/.16 inch margin
	4-A	61320	P	61926	A	*61928	A	1	/. 8 inch margin
	4-B	61420	R	61926	A	*61928	A	3	/. 3 2 inch margin
	4-C	61920	B	61926	A	*61928	A	3	/.16 inch margin
	1	61920	L	61926	D	*61928	B	1	/. 4 inch margin
Attach collar band	2-B	61920	M	61926	D	*61928	B	1	/ 4 inch margin
	5	61420	BT	61905	B-063 or 073	61924	B
	5-A	L440	A		or 083
				61905	B-063 or 073	61924	B
	2-B	61920	M		or 083
Join shoulders (one operation)				61926	D	*61928	B
	6	61920	F	61905	F-063	61924	C
Topstitch collar band	39	61920	D	61926	D	*61928	B	Attachment req.
	7	61920	J	61926		*61928
Attach collar (first operation)	7-B	61920	P	61926		*61928
	1	61920	L	61926	D	*61928	B
Stitch down collar (second operation)	7	61920	J	61926		*61928
	7-B	61920	P	61926		*61928
Runstitch cuffs	2-B	61920	M	61926	D	*61928	B
	1	61920	L	61926	D	*61928	B
Topstitch cuffs	3	61920	B	61926		*61928
	4	61927	A	61926	A	*61928	A
Hem bottom	1	61920	L	61926	D	*61928	B
	76	L460	A	61926 A		*61928	A		1/8 inch hem
Hem button front	2-B	61920	M	61926	D	*61928	B

* Needle hole in throat plate (. 053 inch needle hole)

From the library of: Superior Sewing Machine & Supply LLC

....

O')

	CLASS 63900 (Page 8)
	STYLE	PRESSER			FEED	THROAT
ARTICLE AND OPERATION	NUMBER	FOOT			DOG	PLATE		REMARKS
SHIRTS, Dress and Sport (Continued)	2-B
Attach facing to left front		61920	M	61926	D	*61928	B
Quilt collar band	1	61920	L	61926	D	*61928	B
Set pockets	7	61920	J	61926		*61928
Hem top of pockets	7	61920	J	61926		*61928
Attach sleeve facings (continuous)	85	61220	K	L582	A	t L581 A
SHIRTS, Knit Sport						61924	J
Attach front facings	8	61920	B	61905	J-063
Runstitch cuffs and collar	8	61920	B	61905	J-063	61924	J
Attach and stitch down collar and cuffs	9	61920	J	61905	J-063	61924	J
Set pockets	9	61920	J	61905	J-063	61924	J
SHIRTS, Work and Heavy Sport				61905	C-073	61924	C	1/ 4 inch margin
Runstitch and top stitch collar and cuffs	11	61920	C
	10	61920	A	61905	C-073	61924	C	1/ 4 inch margin
	12-A	61920	A	61905	K-073 or 083	61924	K	1/ 4 inch margin
Attach collar and cuffs	10	61920	A	61905	C-073	61924	C
	12-A	61920	A	61905	K-073 or 083	61924	K
Sew down collar and cuffs	13	61920	J	61905	E-073	61924	E
	14	61920	J	61905	G-073 or 083	61924	G
Attach collar band	15	61920	A	61905	B-063 or 073	61924	B
Hem work shirts	19	L310	A	61926	or 083	*61928
SHORTS AND SLACKS, Ladies'	77	L427	A	61926		*61928
Attach facings to pockets	27	61920	B	61926	C	*61928	B
Attach pockets	28-A	61920	A	61905	E-073	61924	E
Attach and close pockets	27	61920	B	61926	C	*61928	B
Attach elastic to waistband and
finish band	26	61920	B	61905	C-073	61924	C
	23	61420	BU	61926	H	#61928 H
SHORTS, Men's Woven						or H-050
Form right and left fly	7	61920	J	61926		*61928
	7-B	61920	P	61926		*61928

* Needle hole in throat plate (. 053	needle slot)
Needle hole in throat plate (. 063	needle slot)
1 Needle hole in throat plate (. 073	needle slot)

From the library of: Superior Sewing Machine & Supply LLC

....

-:i

		CLASS 63900 (Page 9)
		STYLE	PRESSER			FEED	THROAT
ARTICLE AND OPERATION		NUMBER	FOOT			DOG	PLATE		REMARKS
SHORTS. Men's Woven (Continued)			61420 BT		61926
French band hem		18					*61928
		2-B	61920 M		61926 D		*61928 B
Attach waistband		3	61920 B		61926		*61928
SHIRTS. Ladies' Cotton and Wool
Make bows. sew lining to back.
attach waistband and stitch down					61926 D
band		1	61920 L				*61928 B
SLIPS. Cotton and Woven Synthetic
Material		7-B	61920 P		61926		*61928
Topstitch right and rear side panels
SNOW SUITS,	Children's Lined
Make liner,	attach sleeves, seat		61920 L		61926 D		*61928 B
seam, side and center seam		1
Attach hood, hood lining, cuffs and							61924 K
anklets		12	61920 S		61905 K-073 or 083
		12-A	61920 A		61905 K-073 or 083		61924 K
Edgestitch fronts		33	61920 M		61926 E		*61928 C
SWEATERS, Ladies' Cardigan			61920	R	61905	J-063	61924	J
Attach button and buttonhole facings		16
SWIM SUITS, Ladies' Woven		18	61420	BT	61926		*61928
Make shoulder straps
		18- A	61920	C	61926		*61928
Close back seam		30	61920	L	61926		*61928
SWIM SUITS,	Ladies' Knit	30-A	61920	A	61926		*61928
		28	61920	B	61905	E-073	61924	E
Sewing bra lining to fronts
		28-A	61920	A	61905	E-073	61924	E
		29	61420	BT	61905	J-063	61924	J
Seam bra lining		1	61920	L	61926 D		*61928	B
Make shoulder straps		18	61420	BT	61926		*61928
Join lining and trunks		1	61920	L	61926	D	*61928	B
Close bra darts		1	61920	L	61926	D	*61928	B
Close top of swim suit		1	61920	L	61926 D		*61928	B

* Needle hole in throat plate (. 053 needle slot)

From the library of: Superior Sewing Machine & Supply LLC

SELF-PRIMING HEAD OIL SIPHON

Class 63900 machines are equipped with a self-priming head oil siphon. When the machine is started, oil splashes on the priming cup felt, filters through the felt and trickles down the vertical oil tube, thus priming the siphon. Once the prime is established, it is maintained unless the felt is removed. The siphon operates twenty-four hours a day, removing oil at the rate of six to twelve drops per minute, which, of course, far exceeds the rate at which oil collects in the head.

61494 N

63994 Intake Tube

61494 L

Screw

666-214	666-237
	Priming Cup Felt
Intake Felt-------\~A ~fQ'!-
	63494 D
	Oil Siphon

INSTALLING AND MAINTENANCE OF OIL SIPHON

A newly installed siphon starts its action within three to five minutes after the machine is operating. However, it may be twenty minutes or so before all the air is removed from the line and the siphon is in full operation. Within an hour, there should be a distinct reduction of the oil in the head sump. If the siphon does not function, determine if the siphon intake tube, located in the head, is inserted in the felt block and that the plastic tube is connected at both ends. If the above two items do not correct the siphon, replace the siphon felts as described below.

The felt in the priming cup is designed for a specific purpose. This felt, 666-237, is to meter the flow of priming oil and to prevent the entrance of air. The felt also acts as a filter and keeps the siphon clear of lint.

If the priming cup felt and the intake felt (666-214) becomes contaminated with an excessive amount of lint, it may be necessary to replace the felts. The priming cup felt is replaced by removing access plug at back of machine and replacing felt 666-237. For the best initial self-priming condition, the felt of the siphon should be installed dry. The intake felt is replaced by removing the end cover.

However, if for some reason the priming cup felt has been oiled before installing, the siphon may fail because air is trapped in the felt. As a precaution, remove the felt from the cup. Then, while squeezing the felt between the fingers, saturate it well with oil. In other words, squeeze out the air and replace it with oil. This prevents the trapping of air, and no trouble should be experienced when starting the siphon.

22

From the library of: Superior Sewing Machine & Supply LLC