Melco EP 1B Manual de usuario

Technical Manual

for the EP 1B

embroidery machine

Part Number 12616, Revision B

•Single Head, Single Needle

•Easy To Operate

•Low Power Consumption

•High Quality Results

1575 West 124th Avenue

Denver, Colorado 80234

United States of America

Internet Address: publica[email protected]

transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise)

without prior written approval of Melco Embroidery Systems. Melco reserves the right to revise this

publication and to make changes in it at any time without obligation of Melco to notify any person or

organization of such revisions or changes.

All precautions have been taken to avoid errors or misrepresentations of facts, equipment, or products.

However, Melco Embroidery Systems does not assume any liability to any party for loss or damage caused by

errors or omissions.

Printed in the United States of America

First Printing: April, 1999

Revision B June, 1999

EP 1B Technical Manual I 06/99

Table of Contents

1. Setting Method for Adjusting or Repairing Machine 1

2. Replacement of Hook Race (unit) 2

3. Replacement of Needle Bar (unit) 9

4. Removal of X-Y Cover 13

5. Replacement of A Board, LAN Board, Power Supply Unit 24V

and Power Supply Unit 5V 16

6. Replacement of K Board and Display Tube (VFD) 18

7. Replacement of Power Supply Switch, Inlet and

Connector Fixing Plate 20

8. Replacement of X-Y Mechanism 21

9. Removal of Machine 23

10. Replacement of Thread Breakage Sensor, S Board(unit),

Upper Shaft Sensor and Solenoid. 24

11. Mounting of Machine 29

12. Adjustment of Bobbin Thread Sensor, Solenoid and

Thread Breakage Sensor. 30

13. Replacement of Wire pulley 33

14. Replacement of X-Y Carriage 35

15. Replacement of Y(X) Stepping Motor and Y(X) Sensor 39

16. Replacement of Gear 42

17. Self-diagnosis Mode 49

Table of Contents

12616, Rev. B II Melco Embroidery Systems

12616, Rev. B

1. Setting Method for Adjusting or Repairing Machine

1. Lay the machine on its side, and insert thick books or the like below the machine as shown in

Fig.1-1,1-2.

2. Set the machine by adjusting the height of the arm by using a hard book or the like so that

baseplate (A) is almost perpendicular to the floor as shown in Fig.1-1,1-2.

* Parts marked as shown in in photos show that these parts are to be detached.

FIGURE 1-1

FIGURE 1-2

22. Replacement of Hook Race (unit)

EP 1B Technical Manual Melco Embroidery Systems

2. Replacement of Hook Race (unit)

This paragraph describes the replacement of hook race, removal of the cover plate, adjustment of a

play of the lower shaft gear, adjustment of needle / hook timing relationship, depth of needle

penetration, and lower shaft thrust play, and other instructions.

1. Remove the needle by loosening needle setscrew (A), and remove the throat plate by removing

setscrew(B) as shown in Fig.2-1.

2. Remove bottom plate (D) by removing 14 bind screws 4x5(C). Fig.2-2.

FIGURE 2-1

FIGURE 2-2

12616, Rev. B

2. Replacement of Hook Race (unit) 3

3. Remove the bed rubber stopper (F). Fig.2-3.

4. Set the needle bar to the lowest position, and

loosen the clamp screw at the bed rubber stopper

(F) position.

5. After removing the Hook race body cover

by removing bind screws 4x6.5(E), remove

the bed cover (unit) (H) by removing two

bind screws 4x12(G). Fig.2-4-1,2-4-2.

FIGURE 2-3

FIGURE 2-4-1

42. Replacement of Hook Race (unit)

EP 1B Technical Manual Melco Embroidery Systems

6. Remove two setscrews (J) shown

in Fig.2-5, and remove the

gearbox rear cap and bobbin

thread sensor.

7. After removing the hook race

body cover and hook body, turn

the lower shaft gear in the arrow

1 direction as shown in Fig.2-6,

loosen socket screw(K), and shift

the lower shaft gear rightward in

the arrow 2 direction. Loosen

socket screw (L) next.

8. Loosen socket screw(M)

shown in Fig.2-7.

FIGURE 2-5

FIGURE 2-6

FIGURE 2-7

12616, Rev. B

2. Replacement of Hook Race (unit) 5

9. Draw out the hook race body(unit) in

the arrow 1 direction as shown in

Fig.2-8. After removing the hook race

body cover and hook body, assemble

new hook race body(unit) in the

arrow 2 direction.

10. Set the hook body to the hook race

body as shown in Fig. 2-9 mount the

needle, and set the needle bar to the

lowest position. Set the hook body

tip to the rear side of the needle,

adjust the gap between the needle

and the hook body tip to 0-0.15mm,

and tighten socket screw(L) lightly.

11. After mounting the

hook race body cover,

adjust the hook race

body(unit) by turning it

so that the needle is

positioned at the center

of the groove of the

hook race cap spring (O)

as shown in Fig.2-10.

FIGURE 2-8

FIGURE 2-9

FIGURE 2-10

62. Replacement of Hook Race (unit)

EP 1B Technical Manual Melco Embroidery Systems

•For adjusting the

gap between the

needle and the hook

body, bring the

books(P) supporting

the arm to the

handwheel side as

shown in Fig.2-11

for the purpose of

preventing a change

of the gap between

the needle and the

hook body due to

the deformation of

the arm.

12. Set the part(Q) of the hook race body(unit) and

hook body tip(R) to the phase shown in Fig.2-12

approximately.

13. After fixing the hook body, turn the lower

shaft gear in the arrow 1 direction until it

touches the wall as shown in Fig.2-13 and

lightly press it to the hook shaft gear by

shifting it in the arrow 2 direction.

Turn the lower shaft front bushing in either

direction, and tighten socket screw(K).

FIGURE 2-11

FIGURE 2-12

R Q

FIGURE 2-13

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