KANSAI SPECIAL RX/UTC Series Bedienungsanleitung

INSTRUCTION

INSTRUCTIONINSTRUCTION

INSTRUCTION

RX/UTC MANUAL

Industrial

IndustrialIndustrial

Industrial

Sewing

SewingSewing

Sewing

Machines

MachinesMachines

Machines

First published : September 1991

Eighth edition : July 2001

No. 010086

INTRODUCTION

INTRODUCTIONINTRODUCTION

INTRODUCTION

Thank you for your purchasing Kansai Special's RX/UTC Series.

Read and study this instruction manual carefully before beginning any of

the procedures and save it for later use.

This instruction manual describes adjustments and maintenance

procedures for the thread trimmer.

Refer to the RX Series instruction manual for other information.

CONTENTS

CONTENTSCONTENTS

CONTENTS

HOW TO USE THE THREAD TRIMMER

･1

INSTALLING THE POSITION DETECTOR

･1

ADJUSTING THE THREAD TRIMMER AIR CYLINDER

3-1 Air cylinder stroke ････････････････････････ 2

3-2 Air cylinder return spring ･････････････････ 2

ADJUSTING THE THREAD TRIMMER SOLENOID

4-1 Solenoid stroke ･･･････････････････････････ 2

4-2 Adjusting the solenoid return spring ･･･････ 2

5. ADJUSTING THE THREAD TRIMMER

5-1 Position of the movable knife and the stationary

knife

････････････････････････････････････ 3

5-2 Adjusting the looper thread clamp spring ･･･ 3

5-3

Adjusting the movable knife pressure spring

･･ 3

5-4

Adjusting the stationary knife holder stopper

･･ 4

5-5 Adjusting the movable knife holder left and right

･････････････････････････････････････････ 4

5-6 Adjusting the movable knife front to back ･･･ 4

5-7 Adjusting the movable knife up and down ･･･ 5

5-8 Relationship between the movable knife, needle

thread and looper thread ･････････････････ 5

5-9 Looper thread clamp spring pressure ･･･････ 5

6. ADJUSTING THE THREAD RELEASER

6-1 Thread releaser block ･････････････････････ 6

6-2 Thread releaser connection plate ･･･････････ 6

6-3 Thread releaser lever ･････････････････････ 6

6-4 Thread releaser plate ･････････････････････ 7

6-5 Thread releaser hook ･････････････････････ 7

7. SAFETY DETECTOR ････････････････････ 7

8. ADJUSTING THE SPEED CONTROLLER

AND AIR PRESSURE ････････････････････ 8

9. THREAD WIPER ADJUSTMENT ･･･････ 8

10.

ADJUSTING THE PRESSER FOOT LIFT

11.

ADJUSTING THE TOP COVER

THREAD

TRIMMER

11-1 Relationship between the position of the

movable knife and the stationary knife ･･ 10

11-2 Adjusting the top cover thread clamp spring

･･･････････････････････････････････････ 10

11-3 Adjusting the movable knife pressure spring

･･･････････････････････････････････････ 10

11-4 Adjusting the movable knife left to right ･･ 11

11-5 Adjusting the movable knife front to back 11

11-6 Adjusting the height of the movable knife 11

11-7 Adjusting the solenoid return spring ･････ 12

11-8

Adjusting the top cover thread releaser hook

12.

WIRING AND PIPING FOR PNEUMATIC DEVICES

12-1 RX9800 ･･･････････････････････････････ 13

12-2 RX9800ALK, PHK ･････････････････････ 13

12-3 RX9800PLK ･･･････････････････････････ 14

13.

WIRING AND PIPING FOR ELECTRIC DEVICES

････････････････････････････････････････････ 14

【1】HOW TO USE THE THREAD TRIMMER

■

Pressing the pedal with toe (position A) starts the

machine. Releasing the pedal (position B) stops the

needle at the top/bottom of its stroke (adjustable with

the motor).

■

If the needle stops at the bottom of its stroke as adjusted,

pressing the pedal with heel (position C) raises the

needle.

As soon as the needle stops at the top of its stroke by

pressing the pedal with heel, the thread trimmer gets

actuated (if the needle stops at the top of its stroke as

adjusted, the thread trimmer gets actuated by pressing

the pedal with heel).

■

Returning the pedal to position B lowers the presser foot.

■

The presser foot can be raised or lowered freely by releasing the pedal (position B) or

pressing the pedal with heel (position C) until the pedal is placed at position A for the

next sewing operation after the threads are cut.

【2】INSTALLING THE POSITION DETECTOR

■

Install position detector A and tighten screw B

temporarily.

■

Fit positioner bar C onto the guide groove of the position

detector. Then tighten screw D.

■

Turn on the motor.

■

Press the pedal with heel after two to three stitches are

formed by pressing the pedal with toe.

Then the needle stops.

■

Loosen screws B for the position detector.

Turn the machine pulley while checking that the

position of screws B is not shifted. Align mark P on

handwheel E with the alignment mark on the arm.

Then the needle bar is at the top of its stroke.

Tighten screws B to secure the position detector.

■

Check to see if the needle bar stops at the top of its

stroke by pressing and then releasing the pedal.

< Note >

Do not use this thread trimmer with no fabric under the presser foot.

< Note >

Remove the connector for the thread trimmer cylinder.

Make sure the knife is retracted all the way.

【3】ADJUSTING THE THREAD TRIMMER AIR CYLINDER

-1 Air cylinder stroke

1 Air cylinder stroke1 Air cylinder stroke

1 Air cylinder stroke

The stroke of the air cylinder should

be approximately 15mm.

To adjust this stroke, loosen collar B

and screw A. Set the clearance

between rubber cushion F and the

rear end of the cylinder at 15mm.

To position shaft E, loosen nut C.

With the cylinder retracted, set the

distance from the left end of cylinder

installation bracket D and the center

of shaft E at approximately 57.3mm.

-2 Air cylinder return spring

2 Air cylinder return spring2 Air cylinder return spring

2 Air cylinder return spring

With the cylinder plunger protruded, there should

be approximately 26mm clearance between ring G

and bracket D.

【4】ADJUSTING THE THREAD TRIMMER SOLENOID

-1 Solenoid stroke

1 Solenoid stroke1 Solenoid stroke

1 Solenoid stroke

The stroke of the solenoid should be

approximately 15mm.

To adjust this stroke, remove rubber

cover F and loosen nut A.

Set the clearance between rubber

cushion B and the rear end of the

solenoid at 15mm. To position shaft

E, loosen nut C. With the solenoid

retracted, set the distance from the

left end of bracket D and the center

of shaft E at approximately 57.3mm.

-2 Adjusting the solenoid return spring

2 Adjusting the solenoid return spring2 Adjusting the solenoid return spring

2 Adjusting the solenoid return spring

With the solenoid plunger protruded, there should

be approximately 42mm clearance between collar

H and bracket D. To make this adjustment,

loosen screw G of solenoid return spring collar H.

【5】ADJUSTING THE THREAD TRIMMER

-1 Position of the movable knife and the stationary knife

1 Position of the movable knife and the stationary knife1 Position of the movable knife and the stationary knife

1 Position of the movable knife and the stationary knife

■

Position of the movable knife

Set the (a 1) part of the movable knife A parallel to

the (g 1) part of the stationary holder G.

Set the distance from point of movable knife A and

the center of left screw H at approximately

73.5mm.

■

Relation between the stationary knife and the

movable knife.

Adjust the engagement between blade (a 3) for

trimming looper thread and stationary knife to be

0.5mm when movable knife is at the extreme right.

So that the point of blade (a 2) for cutting needle

thread pass the corner (b 1) of stationary knife B.

The adjustment is made by loosening screw C.

Note that the looper thread clamp spring is

simultaneously loosened.

-2 Ad

2 Ad2 Ad

2 Adjusting the looper thread clamp spring

justing the looper thread clamp springjusting the looper thread clamp spring

justing the looper thread clamp spring

Position of looper thread clamp spring D so that

the part (a 1) of movable knife and the part (d 1) of

looper thread clamp spring are on the same plane.

And adjust it will protrude approximately 2.2mm

from the point of movable knife A when movable

knife is at the extreme right. Adjustment is made

by loosening screw C.

-3 Adjusting the movable knife pressure spring

3 Adjusting the movable knife pressure spring3 Adjusting the movable knife pressure spring

3 Adjusting the movable knife pressure spring

Position of movable knife pressure spring F so that

the part (a 1) of movable knife and the part (f 1) of

movable knife pressure spring are on the same

plane.

And adjust it will protrude approximately 5.2mm

from the point of movable knife A when movable

knife is at the extreme right. Adjustment is made

by loosening screw E.

-4 Adjusting the st

4 Adjusting the st4 Adjusting the st

4 Adjusting the stationary knife holder stopper

ationary knife holder stopperationary knife holder stopper

ationary knife holder stopper

The stationary knife holder I slides to the left and

stops by stationary knife holder stopper J.

Never slide the stationary knife holder I to the left

too much because the looper thread clamp spring

touches the looper.

The adjustment is made by loosening screw K and

moving stationary knife stopper left and right.

The standard position, the left end of stationary

knife holder stopper is 1mm right from the left end

of base plate R.

-5 Adjusting the movable knife holder

5 Adjusting the movable knife holder5 Adjusting the movable knife holder

5 Adjusting the movable knife holder left and right

left and rightleft and right

left and right

With movable knife A at the extreme left end of its travel, there should be a distance of

22mm from the center of the needle bar to the point of movable knife A.

To make the above adjustments, remove pin S and make a fine left-to-right adjustment on

movable knife driver lever M by turning screw T.

-6 Adjusting the movable knife front to back

6 Adjusting the movable knife front to back6 Adjusting the movable knife front to back

6 Adjusting the movable knife front to back

To adjust the movable knife front to back, center the point of movable knife over the

looper with the point of movable knife 12mm moved to the left from the right end of

looper.

To adjust, when loosening screw U and turning guide lever ring P clockwise, the movable

knife point moves forward and turning it counterclockwise, the point moves backward.

At the same time, movable knife holder guide N should slightly touch the end of movable

knife

holder.

The

adjustme

nt is

made by

loosening

screw V.

-7

Adjusting

AdjustingAdjusting

Adjusting

the

thethe

the

movable knife up and down

movable knife up and downmovable knife up and down

movable knife up and down

There should be a clearance of 0mm between movable knife and the top surface of looper.

The adjustment is made by loosening screw X and moving stationary knife holder guide.

After the above adjustment, make sure the movable and stationary knife holders move

smoothly.

-8 Relationship between the movable knife, needle thread and looper thread

8 Relationship between the movable knife, needle thread and looper thread8 Relationship between the movable knife, needle thread and looper thread

8 Relationship between the movable knife, needle thread and looper thread

After all the adjustments are made, check the following

before threading to start the machine.

■

Movable knife A should enter needle thread loops B.

Cutting edge C for the looper thread should pass looper

thread D.

■

When the movable knife is returning home, the needle

threads and looper thread are pulled to the right by

cutting edges E and F and cut by the stationary knife.

-9 Looper thread clamp spring pressure

9 Looper thread clamp spring pressure9 Looper thread clamp spring pressure

9 Looper thread clamp spring pressure

The looper thread clamp spring holds the looper thread

after it is cut. To adjust the pressure of thread clamp

spring H, turn adjusting screw G. To increase the

pressure, turn it clockwise. To decrease the pressure,

turn it counterclockwise. The machine is supplied

with a spun thread (#60). The pressure of the thread

clamp spring is factory-set at approximately 90g.

Adjust the pressure for other threads.

【6】ADJUSTING THE THREAD RELEASER

-1 Thread releaser block

1 Thread releaser block1 Thread releaser block

1 Thread releaser block

With the thread trimmer air cylinder rod at the left

end (the air cylinder is not operating), set the

clearance between thread trimmer air cylinder

bracket A and thread releaser block B at 13mm.

Then tighten screw C.

-2 Thread releaser connection plate

2 Thread releaser connection plate2 Thread releaser connection plate

2 Thread releaser connection plate

Fit thread releaser connection plate D to guide

screw E. Create a clearance between plate D and

thread releaser connection lever G.

Adjustment is made by loosening screw H.

-3 Thread releaser lever

3 Thread releaser lever3 Thread releaser lever

3 Thread releaser lever

Position thread releaser lever F so that the thread

tension disk can open as fast as possible.

Then tighten screw H for thread releaser connection

lever G at the rear of the arm.

-4 Thread releaser plate

4 Thread releaser plate4 Thread releaser plate

4 Thread releaser plate

Install thread releaser bar D to thread releaser bar

connection plate F with screw G.

The top end of thread releaser bar D should

protrude 39mm from the top surface of thread

releaser bar guide E. There should be a clearance

of 4mm between washer H and thread releaser bar

guide E.

-5 Thread releaser hook

5 Thread releaser hook5 Thread releaser hook

5 Thread releaser hook

The needle thread should not protrude long from the

underside of the fabric at the start of sewing.

Loosen screw I and adjust thread releaser hook J.

To decrease the amount of the thread supplied by

the thread take-up, raise the thread releaser hook.

To increase the amount, lower the thread releaser

hook. If the amount is too little, the stitches cannot

be formed at the start of sewing.

【7】SAFETY DETECTOR

■

The safety detector is included so that the machine

will not start until the thread trimmer cuts the

threads and returns home safely.

Switch A of the detector must be pressed (ON)

during sewing (with the thread trimmer completely

returned home). Adjust by loosening screws B and

E and moving brackets C and D.

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