Seiko LDA-261U21A, LDA-23A User Manual

CONTENTS

1.	Presser Bar and Thread Cutter ...................................................	~....................
2.	Feed Mechanism and Needle Guard		2
3.	Looper Mechanism .......................................................................................	..	3
4.	Upright Shaft and Lubrication System		4
5. Arm Shaft and Machine Pulley ........................................ ..............		....... ...........	5
6.	Needle Bar and Take-up Lever ..... ............... ................. ... ..	.............. ... ... .. .........	6
7.	Bed Rotary Shaft ..............................................................................................		7
8-1.	Looper. Thread Guide ................................................. ... ........................	...........	8
8-2 .	Looper Thread Guide and Belt Guard ...................................................	...........	9
9.	Needle Thread Guide and Tension ............................. ... ..	..................... ...........	10
10-1. Covers .. ... .... ...... ..... .. ... .. .. .. ..... ... ... .. ... ... .. ... .. .. ... .. .. .... ..... .. ..		.. .. ... ... .. ... .. ... .... ... .. ..	11
10-2.	Covers ..............................................................................................................		12
11.	Oil Reservoir and Arm Screw ..................................... ... ...................................		13
12.	Others ..............................................................................................................		14
13.	Gauge parts ...................................................................................................		15

From the library of: Superior Sewing Machine & Supply LLC

1. Presser Bar and Thread Cutter

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			PART NO.		DESCRIPTION		21A		Z:JA					PART NO.								DESCRIPTION			21A 1 23Ai
	1		802		Hinge Screw		*		*					IOC8DZ ·-											!
			416081	-469	Presser Bar Lilting Lever
	2						*		*					N3s-;o												I !
	3		807		Hinge Screw		*		*					/CCS'c·7												i
	4		146676		Presser Bar lifting Bracket Lifter									/1.,:-t{
							*		*
														rct 1£ f
	5		504076		Screw (2)		*		*
	6		146609		Presser Bar Lit1ing Lever Extension		*		*					NU.::'
	7		416130		Screw (2)		*		*					.ret '				1	c
	8		146620		Connecting Link		*		*					!<..({.;,-
	9		416024		Tension (needle thread) Releasing Shaft		*		"										•'...:..
										I			I
					Crank Assembly							I						-
							*				[			/'.,: ..,				--
	10		504134		Sel Screw			;	"
	11		68003		Releasing Shat1		* :																			I
									"					T - ~		~
																										I
	12		143511	-001	Spring	. .								-									;
	13		50225		Screw (2)		z .							·-
	14		139181		Thread Culler {Knife)	. .									r		-
	15		143524		Thread Cuner Support and Gu•de	. .								.		;:		- -
	16		416052		Thumb Screw	. .								-			..		I
	17		416021		Nul	. .										(			~
	18		32833		Guide Pin	. .								.. -					;
	19		175032		Washer	. .								-	'~.			)....,
	20		146159		Presser Bar Spnng	. .								-,				l
	21		416115		Presser Bar Lifting Bracket J..ssecrt ,	. .								.:.					J
	22		416005		Screw	. .								i(td}
	23		146751		Presser Bar Bushing (lowe~)	. .								:<.::Us-!
	24		1133		Sel Screw	. .								:(	lf-)
	25		416115		Presser Bar Stop Assemb•y	. .											ti{
	26		416134		Screw	. .								ft> \Lo
	27		416134		Screw	,.			1					g,:,.:.tc
	28		416041		Presser Bar	"			*					I
					From the library of: Superior				Sewing Machine & Supply LLC														I
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Mechan1sm and Needle aurd

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PART NO.

DESCRIPTION

21A

23A

PART NO.

DESCRIPTION

21A

23A

1

32381

Needle Guard

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416014

Needle Guard Holder

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416135

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Feed Bar Hinge Pin (eccentric)

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416018

Feea Regulaling Screw

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13

51061

Set Screw (2)

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14

416139

Screw

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7071

Washer

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16

416071

Feed Eccentric (adjuslable) Assembly

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143450

Slide Block

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416040

Feed Lil1ing Eccentric Forked Connection

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143451

Slide Block

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PART NO.

DESCRIPTION

21A

23A

PART NO.

DESCRIPTION

1

416061

Bevel Gear Assembly

1

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34

416103

Oil Tube Assembly

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2

545068

Set Screw (2)

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416101

Oil Tube Connection

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147111

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Arm Shall (upnght) Bushmg

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416078

Oil Connection

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372829

Arm Shaft (upnght)

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416001

Screw (2)

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146505

Arm Shalt (upnght) Bushtng r-

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38

143370

Oil Lead

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416067

Arm Shalt (upnght) Collar As p_M.o_k2

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416020

Screw

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415930

Oil Removing Tube

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Oil Removing Lint Screen

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143065

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146658

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545193

Screw (3)

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545183

Screw (3)

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375065

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375066

Oil Removing Pump (body)

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21

540555

Oil Removing Pump Bracket

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545239

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33

4161C2

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From the library of: Superior

Sewing

Machine & Supply LLC

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