Yamato VF2400 Instruction Manual

Instruction Manual

HIGH SPEED FLAT BED INTERLOCK STITCH MACHINE

VF2400 class

This instruction manual includes adjustments differed 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.

CONTENTS

	Safety instructions		- 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 finger 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 fileter	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

CONTENTS

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

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 confirmed 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 flammable gases.

-Place where voltage fluctuation exceeds ± 10 % of the rated voltage.

-Place where power capacity necessary for the used motor specifications cannot be secured.

-Place where strong electric or magnetic fields 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.

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 related 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 finished.

(2)Fix the connectors securely to the sewing machine head, motor, and electric apparatus.

(3)Do not apply excessive force to the connection cords.

(4)Connect the cords away from the driving parts.

(5)Place the ground wire securely to the designated 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 fill or drop lubrication oil be- fore operating the sewing machine.

Use the Yamato SF oil as specified.

(3)Never put your hand under the needle or near the moving parts of the machine when turning on power supply switch.

i

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 finger, 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.

Maintenance, inspection, and repair

(1)Follow the instruction manuals for maintenance, 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

ii

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.

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 situations 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.

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.

High-voltage applies in the control box. This label indicates that electric shock may be caused.

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

Warning labels on sewing machines

This label indicates that removal of the safeguards and works except for sewing performance while the power supply switch is on are prohibited. (For details, see the next page.)

High-voltage applies in the control box. This label indicates that electric shock may be caused.

This label is affixed on the safeguards. Considering the operation, it is not affixed on the finger guard and eye guard. Be sure to operate with the finger guard and eye guard in position.

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

If not connected earth line, static electricity may be generated and inflict injury on person. In addition, the malfunction of electric system may cause injury to person.

Check the rotating direction of machine pulley agrees with '

ROTATING-DIRECTION SYMBOL'.

iii

Safety instructions

Rotating direction symbol

iv

1. Name of each part

Thread guide plate

Seal plug(lubrication)

Handwheel

Oil sight window

SP device

Needle bar cover

Presser spring regulator

Needle thread

take-up guard

Thread tension

spring cap

Feed regulating pushbutton

Side cover

	Looper thread
	take-up cover
	Oil sight gauge
Differential feed	Supporting plate for
graduation	looper thread take-up
Finger guard	Front cover
Fig. 1-1	Eye guard
Presser foot

VF2400

1

2. Installation

2.1 semi-submerged type

2.1.1 Table cutting diagram

Standard

				<![if ! IE]> <![endif]>Table dimensions: 1200×595×40
<![if ! IE]> <![endif]>center of pulley

<![if ! IE]> <![endif]>Operator	<![if ! IE]> <![endif]>motor
	<![if ! IE]> <![endif]>manual of the	<![if ! IE]> <![endif]>and D.
	<![if ! IE]> <![endif]>Refer to the instruction	<![if ! IE]> <![endif]>for dimensions A, B, C,

<![if ! IE]> <![endif]>(1/2)	<![if ! IE]> <![endif]>X (1/2)
<![if ! IE]> <![endif]>SectionY -Y	<![if ! IE]> <![endif]>Section X -

Fig. 2-1

VF2400

2

<![if ! IE]>

<![endif]>2-2 .Fig

3- φ 9.5 installing hole of motor

Section Y -Y

<![if ! IE]>

<![endif]>3

Operator

Section X - X

Refer to the instruction manual of the motor

for dimensions A, B, C, and D. VF2400

center of pulley

Table dimensions: 1200×595×40

<![if ! IE]>

<![endif]>device UT With

<![if ! IE]>

<![endif]>Installation .2

2.Installation

2.1.2Installation

	4
Fig. 2-3
Install a machine correctly referring to Figs. 4 and 5.
Set the screws in the supporting board and cover the
screws with the rubber cushions . Fix the the sup-
porting board to the machine table and install a machine
securely on the rubber cushions .			Fig. 2-4

The number of spacers

VF2400 class

Thickness of table	The number of spacers
40	3 pcs. × 12 pcs.
45	2 pcs. × pcs.
50	pc. × pcs.

Table 1

s e w i n g machine

machine table

VF2400

4

<![if ! IE]>

<![endif]>5-2 .Fig

Section H - H

Section G - G

<![if ! IE]>

<![endif]>5

Section F - F

Section E - E

<![if ! IE]>

<![endif]>VF2400

Refer to the instruction manual of the motor for dimensions A, B, C, and D.

3- φ 9.5 installing hole of motor

magnet

magnet	magnet

Operator

Table

Supporting board

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

“155” in the above figure 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.

center of pulley

Note: Position of the rear end of supporting board

<![if ! IE]>

<![endif]>Note: (125)

Magnet : Shown in the diagram are the reference positions where the magnet catches are to be installed.

Table dimensions: 1200×595×40

<![if ! IE]> <![endif]>1.2.2		<![if ! IE]> <![endif]>2.2
<![if ! IE]> <![endif]>diagram cutting Table		<![if ! IE]> <![endif]>submerged-Full
		<![if ! IE]> <![endif]>type

<![if ! IE]>

<![endif]>Installation .2

2. Installation

thickness 20

Auxiliary table

Fig. 2-6

thickness 35

Supporting board

Fig. 2-7

VF2400

6

2. Installation

2.2.2 Installation

machine table

Fig. 2-8

	Install a machine correctly referring to Figs. 2-8 and 2-9.
	Set the screws in the supporting board and cover the
	screws with the rubber cushions . Fix the the sup-
	porting board to the machine table and install a machine
	securely on the rubber cushions .
		Fig. 2-9

VF2400

7