ELNA 7200 Manuale utente

Service Manual

7200

REMOVE THE SETSCREW (A) TO REMOVE THE

FACE PLATE.

ATTACH THE FACE PLATE WITH THE SETSCREW (A).

FACE PLATE

TOP COVER

1. REMOVE THE SETSCREWS (B) AND (C).

2. PULL OUT THE CONNECTOR (D) OF THE

BOBBIN WINDER AND REMOVE THE TOP COVER.

1. CONNECT THE CONNECTOR (D) AS SHOWN

ABOVE.THEN ATTACH THE TOP COVER.TIGHTEN

THE SETSCREWS (B) AND (C).

TO REMOVE FACE PLATE AND TOP COVER

SETSCREW (A)

FACE PLATE

TOP COVER

SETSCREW (B)

SETSCREW (C)

CONNECTOR (D)

CONNECTOR CASE

PRESSURE DIAL

7200

MACHINE BASE

[TO REMOVE]

REMOVE THE 5 SETSCRWS (A), (B), (C), (D) AND

(E).

[TO ATTACH]

ATTACH THE MACHINE BASE WITH

RUBBER PLUGS, WASHERS AND THE 5

SETSCREWS (A), (B), (C), (D) AND (E).

SETSCREW (B)

SETSCREW (A)

SETSCREW (C)

SETSCREW (D)

MACHINE BASE

TO REMOVE BELT COVER AND MACHINE BASE

BELT COVER

[TO REMOVE]

1. REMOVE THE SETSCREWS (A), (B) AND (C).

2. REMOVE THE BELT COVER.

[TO ATTACH]

3. ATTACH THE BELT COVER BY INSERTING THE

PROJECTIONS (D), (E) AND (F) ANDTIGHTEN THE

SETSCREWS (A), (B) AND (C).

SETSCREW (A)

SETSCREW (C)

BELT COVER

SETSCREW (B)

PROJECTION (F)

PROJECTION (E)

RUBBER

FOOT

WASHER

SETSCREW (E)

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

MACHINE REST

(2 CM HIGH)

PROJECTION (D)

7200

TO REMOVE AUTO THREAD CUTTER COVER

[TO REMOVE]:

LOOSEN THE SETSCREW (A) AND PULL OFF THE

AUTO THREAD CUTTER COVER.

[TO ATTACH]:

REPLACE THE AUTO THREAD CUTTER COVER AND

TIGHTEN THE SETSCREW (A).

SETSCREW (A)

AUTO THREAD

CUTTER COVER

7200

1REMOVE THE FACE PLATE, TOP COVER AND BELT

COVER (REFER TO PAGES 1 AND 2).

2 LOOSEN THE SETSCREWS (A), (B), (C) AND (D).

3 PULL OUT THE CONNECTORS (REFER TO

PAGE 22) AND REMOVE THE FRONT COVER.

[TO ATTACH]

4PROCEED WITH THE ABOVE PROCEDURE IN

REVERSE.

SETSCREW (A)

SETSCREW (C)

TO REMOVE FRONT COVER

[TO REMOVE]

SETSCREW (B)

SETSCREW (D)

FRONT

COVER

[VIEW FROM BELT COVER SIDE]

[VIEW FROM FACE PLATE SIDE]

INSULATION PAPER

CORDS

WHEN ATTACHING THE FRONT COVER, ENSURE THAT

THE CORDS SHOWN IN THE PHOTO ON THE LEFT DO

NOT GET CAUGHT BETWEEN THE COVER AND THE

PARTS.

7200

TO REPLACE CIRCUIT BOARD A AND FUSE

[TO REMOVE]

1REMOVE THE FRONT COVER

(REFER TO PAGE 4).

2REMOVE THE 4 SETSCREWS (A).

REMOVE THE CIRCUIT BOARD A TOGETHER

WITH THE MOUNTING BRACKET.

3REMOVE THE 2 SETSCREWS (D).

4 REMOVE THE 2 SETSCREWS (B) AND 2 SET

SCREWS (C).

5REMOVE THE CIRCUIT BOARD A AND LID.

[TO ATTACH]

REVERSE THE ABOVE PROCEDURE.

*THE SHINY SIDE OF THE INSULATION PAPER

SHOULD FACE THE CIRCUIT BOARD A.

TO REMOVE THE INSULATION PAPER,

REMOVE THE BOTH LEFT SIDE OF SET

SCREWS (B) AND (D) ON THE CIRCUIT

BOARD A.

[TO CHANGE THE FUSE]

1. REMOVE THE 2 SETSCREWS (B) AND

2 SETSCREWS (C).

2. REMOVE THE CIRCUIT BOARD A AND LID.

3. PRY THE FUSE OUT WITH A SCREWDRIVER

AS SHOWN.

IF THE FUSE IS LOOSE, BEND THE FUSE

HOLDER WITH YOUR FINGERS.

REPLACE THE FUSE WITH THE SAME PART # AS

SHOWN ON THE ILLUSTRATION.

CIRCUIT BOARD A

SETSCREW (A) SETSCREW (A)

SETSCREW (A)

MOUNTING

BRACKET

INSULATION

PAPER

SETSCREW (B) SETSCREW (B)

SETSCREW (C)

SETSCREW (A)

A BOARD CASE

LID

SETSCREW (B)

SETSCREW (D)

(F1) 3.15A

PART NO. 00182904

(F2) 2.5A

PART NO. 000144605

(F2) 2.5A

PART NO. 000144605

SETSCRW (C)

SETSCREW (C)

LID

7200

TO REPLACE CIRCUIT BOARD K

[TO REMOVE]

1. REMOVE THE FRONT COVER (REFER TO PAGE 4).

PULL OUT CONNECTORS FROM CIRCUIT

BOARD A.

2. REMOVE THE 6 SETSCREWS AND CIRCUIT

BOARD K.

[TO ATTACH]

REVERSE THE ABOVE PROCEDURE.

SETSCREWS SETSCREWS

SETSCREW

CIRCUIT BOARD K

7200

TO REPLACE CIRCUIT BOARD F

[TO REMOVE THE CIRCUIT BOARD F]

1. REMOVE THE FRONT COVER (REFER TO PAGE 4)

2. PULL OUT THE CONNECTOR FROM THE CIRCUIT

BOARD A.

3. REMOVE THE 3 SETSCREWS (A), 2 CS RINGS AND

CIRCUIT BOARD F.

[TO ATTACH]

REVERSE THE ABOVE PROCEDURE.

MAKE SURE THAT THE BUTTONS ARE PLACED IN

THE CORRECT PLACES AND DIRECTION (FIG. 1).

CIRCUIT BOARD FCS RING

SETSCREW (A)

AUTO THREAD CUTTER BUTTON

UP/DOWN NEEDLE POSITION

BUTTON

LOCK STITCH BUTTON

REVERSE STITCH BUTTON

START/STOP BUTTON (FIG. 1)

7200

CONNECTION OF CONNECTORS

CIRCUIT BOARD F

(BLACK 7 PINS)

ZIGZAG STEPPING

MOTOR (WHITE 7 PINS)

FEED STEPPING

MOTOR (BLACK 7 PINS)

LAMP (WHITE 2 PINS)

DROP FEED SWITCH

(BLUE 2 PINS)

DC MOTOR

(WHITE 5 PINS)

FOOT CONTROL

(WHITE 2 PINS)

LOWER SHAFT SENSOR

(BLACK 5 PINS)

BOBBIN WINDER

(BLACK 4 PINS)

BH SENSOR (RED 2 PINS) CIRCUIT BOARD K

(BLACK 32 PINS)

PRESSER BAR

SWITCH

MOTOR FOR THREAD

TENSION RELEASE

(RED 7 PINS)

AUTO THREAD

CUTTER SWITCH

(RED 2 PINS)

SEPARATION SOLENOID

(RED 2 PINS)

BOBBIN SOLENOID

(BLACK 2 PINS)

TRANSFORMER

(SECONDARY)

(RED 6 PINS) TRANSFORMER

(PRIMARY)

(BLACK 2 PINS)

MACHINE SOCKET

(WHITE 2 PINS)

CIRCUIT BOARD A

AUTO THREAD CUTTER

SOLENOID (WHITE 2 PINS)

CONNECTOR TO

CIRCUIT BOARD K

CIRCUIT BOARD F

CIRCUIT BOARD K

7200

TO ADJUST NEEDLE DROP POSITION

[TO ADJUST]:

1REMOVE THE FACE PLATE.

CHECK THE NEEDLE DROP POSITION ON THE

STITCH PATTERN ( ) AND ZIGZAG STITCH ( )

WITH MAXIMUM WIDTH.

2LOOSEN THE HEXAGONAL SOCKET SCREW (A)

JUST ENOUGH TO TURN THE ECCENTRIC PIN

(B). ADJUST THE NEEDLE DROP POSITION BY

TURNING THE ECCENTRIC PIN. THE DIRECTION

OF THE ECCENTRIC PIN (B) SHOULD BE AS

SHOWN IN FIG. 1.

3TIGHTEN THE HEXAGONAL SOCKET SCREW (A).

4ATTACH THE FACE PLATE.

HOLE OF NEEDLE PLATE

0.2 MM OR

A=B

FIG. 2

HEXAGONAL

SOCKET SCREW (A)

ECCENTRIC PIN (B)

FIG. 1

THREADER

LEVER

WHEN THE STRAIGHT STITCH IS SELECTED, THE NEEDLE SHOULD BE AT THE CENTER OF THE HOLE OF THE

NEEDLE PLATE. WHEN THE MAXIMUM ZIGZAG WIDTH IS SELECTED, THE DISTANCE BETWEEN THE NEEDLE

AND THE EDGE OF THE HOLE OF THE NEEDLE PLATE AT THE RIGHT AND LEFT NEEDLE POSITIONS SHOLD BE

0.2 MM OR MORE AS SHOWN IN FIG. 2.

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