Yamato VF2400 Instruction Manual

Instruction Manual

HIGH SPEED FLAT BED INTERLOCK STITCH MACHINE

VF2400 class

This instruction manual includes adjustment s dif fered from VF2400. Before using your machine mentioned above, please read both of the instruction manuals and understand the contents well. After reading the instruction manual, please keep it in a location where it is easily accessible to the operator.

Safety instructions ⅰ - iv

1. Name of each part 1

2. Installation 2

2.1 Semi-submerged type 2

2.2 Full-submerged type 5

2.3 Motor, pulley and belt 8

2.4 Hanging belt 9

2.5 Belt cover 9

2.6 Eye guard and 󲶻nger guard 10

2.7 Thread guide plate 10

2.8 Tape stand (VF2403, 2404, 2503, 2504) 11

2.9 Tape holder (VF2404, 2504) 11

3. Sewing speed and rotating direction of pulley 12

4. Lubrication 13

4.1 Lubricating oil 13

4.2 Lubricating 13

4.3 Changing oil 14

4.4 Checking and replacing oil 󲶻leter 14

5. Proper operation 15

5.1 Needle system 15

5.2 Installing needles 15

5.3 Threading 16

5.4 Adjusting thread tension 17

5.5 Pressure of presser foot 17

5.6 Adjusting position of presser foot 17

5.7 Adjusting differential feed dog 18

5.8 Adjusting stitch length 19

5.9 HR device and SP device 20

5.10 Setting tape (VF2403, 2503, 2404, 2504) 21

5.11 Metering device (only for VF2404 and VF2504) 21

5.12 Adjusting hemming guide (VF2411) 23

5.13 Cleaning the machine 23

6. Adjustments 24

6.1 Needle thread tension 24

6.2 Top cover thread tension 25

6.3 Looper thread tension 26

6.4 Removing presser foot and presser foot lift 27

6.5 Looper 28

6.6 Height of needle bar 29

6.7 Front-and-rear position of needle and looper 30

6.8 Needle and needle guard 31

6.9 Height of feed dog 32

6.10 Needle and spreader 32

6.11 Folder (VF2403, 2503, 2404, 2504) 34

6.12 Metering device (VF2404, 2504) 35

7. Specifications 37

Attention

◇This instruction manual is designed mainly for technicians, but it is advisable that also operators read

the instructions with mark to use the machine properly.

◇The numbers in lower left corners of figures are figure numbers. We use them in texts as needed for

your reference.

Attention

The parts used for this product are subject to change without notice. If such a change is made, any part of the contents and illustrations of this instruction manual may not conform to this product. In preparing the instruction manual, we have made our best efforts for making it free of any error or omission. If any error or omission should yet be found, it might not be rectified immediately.

Safety instructions

１． To ensure safe use

Always observe the following instructions to ensure the safe use of the industrial sewing machines and devices.

1-1 Application and purpose

The sewing machine is designed to improve productivity in the sewing industry and must not be used for other applications and purposes. Do not

use this sewing machine until it can be con󲶻rmed

that safety measures for the drive units have been taken.

1-2 Before use

Read all instruction manuals thoroughly before starting the use of this machine and follow them.

Also, read the instruction manual for the installed drive unit.

1-3 Working environment

DO NOT WORK IN THE FOLLOWING ENVIRONMENTS:

- Place where atmosphere temperature and humidity give a bad influence the performance of sewing machines.

- Outdoors and place where the sewing machines are exposed to sunlight directly.

- Atmosphere containing dust, corrosive gases or

󲶼ammable gases.

- Place where voltage 󲶼uctuation exceeds ± 10 %

of the rated voltage.

- Place where power capacity necessary for the

used motor speci󲶻cations cannot be secured.

- Place where strong electric or magnetic 󲶻elds

are generated such as near large-output high frequency transmitters or high frequency welding machines.

1-4 Unpacking and transportation

(1) Unpack from the top.

(2) Never hold the parts near the needle or

threading parts when removing the sewing machine head from the buffer of box.

(3) When carrying the sewing machine head, have

an assistant.

(4) Pay attention not to get excessive impact or

shock when moving the sewing machine head with a pushcart.

２．Installation and preparation

2-1 Instruction and training

Operators and workers, who supervise, repair or maintain the machine head and machine unit, are required to have the adequate knowledge and operation skills to do the job safely. In order to establish such necessary conditions, it needs for the employer to plan and enforce the safety education and training to those workers.

2-2 Sewing table and motor

(1) Prepare a machine table that has enough

strength to withstand the weight of the sewing head and any reaction while operating.

(2) Maintain a comfortable working environment

with considering the lighting and the arrangement of sewing machine so that the operators can work smoothly.

(3) When installing the control box and the re-

lated parts on the sewing machine, take care about the posture of the worker.

(4) Install the drive unit correctly according

to the instruction manual.

2-3 Wiring

(1) Never connect the plug for power supply un-

til assembly is 󲶻nished.

(2) Fix the connectors securely to the sewing

machine head, motor, and electric apparatus.

(3) Do not apply excessive force to the connec-

tion cords.

(4) Connect the cords away from the driving

parts.

(5) Place the ground wire securely to the desig-

nated position on the machine head.

2-4 Before operation

(1) Take care not to attach lubricant, silicone

oil, and grease on the eyes or skin.

　　Keep them away from children. (2) Be sure to 󲶻ll or drop lubrication oil be-

fore operating the sewing machine.

　　Use the Yamato SF oil as speci󲶻ed.

(3) Never put your hand under the needle or near

the moving parts of the machine when turning on power supply switch.

Safety instructions

(4) When operating a new sewing machine, make

sure the rotating direction of pulley agrees with the rotating-direction mark.

2-5 During operation

(1) Be sure to operate the sewing machine with

the safeguards such as belt cover, finger guard, and eye guard.

(2) Never place the 󲶻nger, hair or objects un-

der the needle or close to the moving parts while operating the sewing machine.

(3) Be sure to turn off the power supply switch

when threading or replacing the needles.

(4) Never place your hands close to the knives

when operating the sewing machine with the trimming devices.

(5) Be sure to turn off the power supply switch

when terminating the sewing work or leaving the sewing machine.

(6) If the sewing machine malfunctions, abnormal

sound or smell something unusual while operating, be sure to turn off the power supply switch.

2-6 Removal

(1) Turn off the power supply switch if removed

or replaced any parts or during adjustment of sewing machine.

(2) Do not pull the cord when removing the plug.

Be sure to hold the plug itself.

(3) A high voltage is applied inside the control

box. Turn off the power supply switch and wait more than 5 minutes before opening the cover.

supply switch.)

(4) Be sure to remove the gasket too, when the

cover removed at the maintenance, inspection, and repair. If not removed, may be injured at the edge of gasket.

(5)　Do not modify the sewing machine by the

customer's judgment.

(6) Be sure to use original replacement parts

for repairs or maintenance.

４．

Caution signs and alert pictorial markings

This instruction manual contains the following caution signs and alert pictorial markings to prevent you from injuring yourself or the sewing machine from being damaged. Please follow the instructions.

4-1 Meanings of caution signs

WARNING indicates potentially hazardous situ-

ations which, if not heeded, could result in death or serious injury to you and others.

Caution indicates hazardous situations which, if not heeded, may result in minor or moderate injury to you and others, or may result in machine damage.

NOTE is used to emphasize essential information.

３．Maintenance, inspection, and repair

(1) Follow the instruction manuals for mainte-

nance, inspection, and repair.

(2) Entrust the maintenance, inspection, and re-

pair to specially trained personnel.

(3) Be sure to turn off the power supply switch

and make sure the sewing machine and motor completely stop before the maintenance, inspection, and repair. (If using a clutch motor, take care that the motor keeps turning for a while even after turning off the power

iii

Safety instructions

4-2 Alert pictorial markings

This mark indicates the warning which, if not heeded, could re-

sult in death or Serious injury.

This mark indicates the caution for high temperature.

This mark indicates the warning which, if not heeded, could re-

sult in death or Serious injury.

Hig h -vo l t age ap pli e s in t he

control box. This label indicates that electric shock may be caused.

Hi gh-vo ltage applie s

in the cont r o l box. This label indicates that e lect r i c sho c k may be caused.

This label is af󲶻xed on the

safeguards. Considering the operation, it is not affixed on the finger guard and eye guard. Be sure to operate

with the 󲶻nger guard and eye

guard in position.

Stepping motor and solenoid

may overheat if used continuously. To prevent a burn, take care not to touch.

This mark indicates the caution which, if not grounded, the machine or device could malfunction and could result in personal injury.

５．Warning labels on sewing machines

This labe l indicates that remo v a l of the safeguards and works except for sewing perf o r ma n c e w h i l e t h e powe r s uppl y swit c h is on are prohibited. (For details, see the next page.)

If not connected earth line, static e l e c tricity m a y be generated and inflict injury on person. In addition, the malfunction of electric system may cause injury to person.

C h e ck t h e ro t a t i n g direction of machine pulley agrees with '

R O T A T I N G - D I R E C T I O N SYMBOL'.

Safety instructions

Rotating direction symbol

. Name of each part

Thread guide plate

Side cover

Needle thread take-up guard

Fee d r eg u la tin g pushbutton

Needle bar cover

Presser spring regulator

Seal plug(lubrication)

Oil sight window

Handwheel

SP device

Thread tension spring cap

Fig. 1-1

Differential feed graduation

Finger guard

Presser foot

Looper thread take-up cover

Oil sight gauge

Sup po rti ng pl at e f or looper thread take-up

Front cover

Eye guard

VF2400

. Installation

2.1 semi-submerged type

2.1.1 Table cutting diagram

Standard

center of pulley

Table dimensions: 1200×595×40

Section Y -Y (1/2)

Operator

Section X -X (1/2)

Refer to the instruction manual of the motor

for dimensions A, B, C, and D.

Fig. 2-1

VF2400

With UT device

center of pulley

2. Installation

Table dimensions: 1200×595×40

3- φ 9.5 installing hole of motor

Section Y -Y

Operator

Section X - X

Refer to the instruction manual of the motor

for dimensions A, B, C, and D.

Fig. 2-2

VF2400

2. Installation

2.1.2 Installation

s e w i n g machine

③

④

4 ㎜

①

Fig. 2-3

Install a machine correctly referring to Figs. 4 and 5.

Set the screws ② in the supporting board ① and cover the screws ② with the rubber cushions ③ . Fix the the supporting board ① to the machine table and install a machine securely on the rubber cushions ③ .

☆ The number of spacers ④

VF2400 class

Thickness of table The number of spacers ④

40 ㎜ 3 pcs. ×４＝ 12 pcs. 45 ㎜ 2 pcs. ×４＝８ pcs. 50 ㎜１ pc. ×４＝４ pcs.

Fig. 2-4

③

②

③

machine table

②

④

①

Table 1

VF2400

2.2 Full-submerged type

2.2.1 Table cutting diagram

2. Installation

Note: (125)

center of pulley

3- φ 9.5 installing hole of motor

Note: Position of the rear end

of supporting board

magnet

Operator

Magnet　: Shown in the diagram are the

Table dimensions: 1200×595×40

ref er e nc e p osi tio ns wh er e t he ma gn e t

catches are to be installed.

Refer to the instruction manual of the motor

for dimensions A, B, C, and D.

Section H - H

Fig. 2-5

Section G - G

Section F - F

Supporting board

Table

“155” in the above 󳞛gure is the distance to the bottom of the supporting board

so it must be set to the dimension where there will be no interference between

the motor control panel and the bottom and back end of the supporting board.

Note: 125 is reference dimension which differ by kindes of the motor.

Section E - E

VF2400

2. Installation

Fig. 2-6

thickness 20 ㎜

Auxiliary table

thickness 35 ㎜

Supporting board

Fig. 2-7

VF2400

2.2.2 Installation

2. Installation

m a c h i n e table

③

①

Fig. 2-8

Install a machine correctly referring to Figs. 2-8 and 2-9.

②

①

Fig. 2-9

+ 32 hidden pages

Yamato VF2400 Instruction Manual

CONTENTS

CONTENTS

Safety instructions