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Pencil Type Electromotive Polisher

OPERATION MANUAL

1

. CAUTIONS FOR HANDLING AND OPERATION

 Read these warnings and cautions carefully and only use in the manner intended.

 These warnings and cautions are intended to avoid potential hazards that could result in 

personal injury to the operator or damage to the device. These are classi

¿

 ed as follows 

in accordance with the seriousness of the risk.

5

. FEATURES

Ideal for grinding or polishing narrow grooves due to this Attachment's slim body design.

This Attachment can be used easily with ceramic 

¿

 ber stones or 

À

 at tyoe 

¿

 les with the 

provided ceramic 

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 ber holder.

6

. SPECIFICATIONS AND DIMENSIONS

Model

ML - 8

EML - 8

Applicable Motor

Emax EVOlution Motor
(ENK - 410S, ENK - 250T)

ROTUS Air Motor
(IM - 301, IM - 300)

Espert 500 Motor
(ENK - 500C, ENK - 500T)

Applicable 
Control Unit

Emax EVOlution
Control Unit

-

Espert 500
Control Unit

Maximum Allowable 
Motor Rotation Speed

Less than 25,000min

-1

 (rpm)

Stroke

0.8mm

Reciprocating Stroke 0 - 6,380 times / min
Weight

130g

Vibration Level

Less than 2.5m / s

Noise Level at 1m 
distance

Less than 70dB (A)

6 - 1  Speci

¿

 cations

Do not exceed the " Maximum Allowable Motor Rotation Speed ".

When sensing that the Attachment and motor are overheated during 
operation, reduce the working force or the motor rotation speed, or stop the 
operation until the Attachment cools down before restarting.

6 - 2  Outside View

 ML - 8

Fig. 1

 EML - 8

ȭ

21.4 

ȭ

19

ȭ

8.1

ȭ

15

13.3

8.54

0.8

(6.6)

(Stroke)

84.5

11.3

(Stroke)

0.8

(6.6)

ȭ

22.4 

ȭ

8.1 

ȭ

15 

ȭ

21.4 

Fig. 2

7

. CONNECTION OF THE ATTACHMENT TO THE MOTOR

Make sure your hands and all interlocking parts of the Attachment and 
motor are clean before connecting the motor to the Attachment. This is 
critical to preventing contaminants from entering the motor or Attachment.

Align the thread on the front end of the motor and the rear of the Attachment, and turn the 
Attachment clockwise. If the drive shaft of the motor does not engage properly to the drive 
dog on the Attachment, it may only turn aprroximately two threads before stopping. 
DO NOT FORCE THEM TOGETHER. Loosen the Attachment from the motor, swing the tool 
holder a few times to engage the drive shaft and a the drive dog, and make the 

¿

 nally tighten 

the this Attachment 

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 rmly.

Tighten

(ML - 8)

Transmission Clutch

(EML - 8)

Transmission Clutch

Fig. 3

8

. CHANGING THE TOOL

Max. shank diameter 

ȭ

3.5mm is available.

Loosen the thread on the top of the this 
Aattachment by allen wrench (1.5mm) to 
insert the tool.
And tighten the thread by the allen wrench 
(1.5mm). Allen wrench to fasten the tool 

¿

 rmly. 

Loosen

Tighten

Fig. 4

9

. TROUBLESHOOTING

If a problem or concern occur, please check the following items prior to consulting your dealer.

Trouble

Cause

Inspection / Corrective Action

Reciprocating stroke is 
poor.

Internal components are worn.

Replacing the internal components.
(Return to NAKANISHI dealer service.)

Overheating during 
reciprocating motion.

Ball bearing worm out by the 
reason ground particles stock in 
the air od ball bearing.

Replace the ball bearings.
(Return to NAKANISHI dealer service.)

Abnormal noise or 
unusual vibration during 
reciprocating motion.

Grinding debris has 
contaminated the ball bearings.
The ball bearings are worn.

Tool slippage.

The tool mounting setscrew has
loosened.

Check if the tool mounting setscrew 
is properly positioned. Clean it and 
retighten.

2015

.

12

.

09

   

002

    

For your safety, remove the plug of motor of control unit, before replacing 
the tool.

Make sure the tool has been mounted 

¿

 rmly, before motor rotation.

Contents are subject to change without notice.

2

. BASIC PACKAGE

When opening the package, check if it includes all items listed in " Table.1  Packing List 
Contents ".
In the event of any shortage, please contact either NAKANISHI (see the " 4. CONTACT US " 
section) or your local dealer.

Table. 

1  Packing List Contents

Attachment

・・

1pc.

Damper Extension

・・

1pc.

Ceramic Fiber Holder

・・

1pc.

Electroplatecl Diamoad File
(1.2 x 4 x 50 

100)

・・

1pc.

Ceramic Fider Grindstone Tip
(1 x 6 x 50 

1200)

・・

1pc.

Allen Wrench (1.5mm)

・・

1pc.

Operation Manual

・・

1set

This Attachment is designed for hand use. Never install this Attachment 
or any hand tool on a machine such as a special purpose machine, NC 
lathe or mill.

Do not exceed the " Maximum Allowable Motor Rotation Speed " (Refer to 
" 6 - 1  Speci

¿

 cations ").

When sensing that the Attachment and motor are overheated during 
operation, reduce the working force or the motor rotation speed, or stop 
the operation until the Attachment cools down before restarting.

Do not touch tool-holder, tool etc, while they are in the reciprocating motion.

Wear safety glasses, dust mask, and use a protective cover around the 
Attachment whenever the Attachment is reciprocating.

Be sure to keep this Attachment / motor away from water. It could cause 
an electric shock to the operator.

Make sure that the transmission clutches engage 

¿

 rmly, when connecting 

the motor to the Attachment before use.

Check if the tool  /  

¿

 le has been mounted 

¿

 rmly, before operation.

Do not apply excessive force. This may cause tool slippage, tool damage, 
injury to the operator, and loss of concentricity and precision of the this 
Attachment and motor.

Repeated or long-term exposure to excessive vibration may cause temporary 
or permanent physical injury, particularly to the hands and the arms.

Suitable gloves should be worn to reduce the vibration effects on the user.

WARNING

Thank you for purchasing the Pencil Type Electromotive Polisher " MINI-LUSTER ". This 
Attachment is designed for polishing narrow grooves, details, etc. The Emax EVOlution 
control unit and motor or Espert 500 control unit and motor or ROTUS air motor are 
required to drive this Attachment. Read this and all the associated component Operation 
Manuals carefully before use. Always keep this Operation Manual in a place where a user 
can referred to for reference at any time.

3

. WARRANTY

We provide a limited warranty for our products. We will repair or replace the products if the 
cause of failure is due to the following manufactures defects. Please contact us or your 
local distributor for details.

Defect in manufacturing.

Any shortage of components in the package.

Where damaged components are found when initially opening the package.
(This shall not apply if the damage was caused by the negligence of a customer.)

4

. CONTACT US

For your safety and convenience when purchasing our products, we welcome your questions.
If you have any questions about operation, maintenance and repair of the product, please 
contact us.

Company Name

Business Hours

U.S. Toll Free No.
Telephone No.
Fax No.
Web Address

:

Industrial Div. 

:  8:30am to 17:00pm (CST)
   (closed Saturday, Sunday and Public Holidays)
:  800-585-4675
:  847-843-7664
:  847-843-7622
:  www.nskamericacorp.com

Contact Us

Contact Us

For U.S. Market

Company Name
Business Hours

Telephone No.
e-mail Address

:  
:  8:00am to 17:00pm
   (closed Saturday, Sunday and Public Holidays)
:  +81 (0) 289-64-3520
:  webmaster-ie@nsk-nakanishi.co.jp

For Other Markets

10

. DISPOSAL OF THE ATTACHMENT

When disposal of an Attachment

 

is necessary, follow the instructions from your local 

government agency for proper disposal of industrial components.

ȭ

3

45

65

ྲྀᢅㄝ᫂᭩

OPERATION MANUAL

Class

Degree of Risk

 

WARNING

A safety hazard could result in bodily injury or 

damage to the device if the safety instructions 

are not properly followed.

 

CAUTION

A hazard that could result in light or moderate 

bodily injury or damage to the device if the 

safety instructions are not followed.

 

Do not drop or hit this Attachment, as shock can damage to the internal 
components.

When cleaning an Attachment, stop the motor and remove dirt with a 
brush or a cloth. Do not blow compressed air into the Attachment. Foreign 
particles or cutting chips may get into the ball bearings.

Always clean the tool shank before installing the tool in the Attachment.

Select suitable products or tools for each application. Do not exceed the 
recommend conditions as abnormal vibrations may occur.

Keep everything in order not to place the rag which could be caught near 
the hand tool. 

Stop operating immediately when abnormal rotation or any unusual 
vibrations are observed. Afterwards, please check the content of section
" 9. TROUBLESHOOTING ".

Always check if the tool, cutting tool-holder and tool fastening screw are 
damaged before and after operating.

No lubrication is required because grease impregnated ball bearings are 
used.

After installation, repair, initial operation, or long periods of non operation, 
please carry out break-in as follow. Start rotating slowly and over a 
short period of 5 - 10 minutes, increase speed gradually until allowable 
maximum speed.

Do not disassemble, modify or attempt to repair the Attachment. 
Additional damage will occur to the internal components. Service must be 
performed by NSK NAKANISHI or an authorized service center.

CAUTION

WARNING

CAUTION

CAUTION

Temperature

Humidity

Atmospheric Pressure

Operation 
Environment

0 - 40°C

MAX.75% 
(No condensation)

800 - 1,060hPa

Transportation and 
Storage Environment

-10 - 50°C

10 - 85%

500 - 1,060hPa

Summary of Contents for MINI-LUSTER

Page 1: ... 状 原 因 対 策 往復運動の動きが 悪い 内部部品の摩耗 内部部品の交換 弊社までお送りください 作業中に異常発熱 する ボールベアリング内への異物の 浸入によるベアリングの摩耗 ボールベアリングの交換 弊社までお送りください 作業中に異常振動 騒音が発生する ボールベアリング内に異物が侵入 ボールベアリングの摩耗 先端工具が抜ける 先端工具止めねじのゆるみ 先端工具止めねじを点検 清掃し て締め直してください 2 梱包内容 梱包箱を開封後 表 1 梱包内容一覧 の内容がそろっていることを確認してください 万一 梱包内容が不足している場合は 4 お問い合わせ窓口 または ご購入先の販売 店までご連絡ください 表 1 梱包内容一覧 アタッチメント本体 1 個 ダンパーホルダ 1 個 セラファイバーホルダ 1 個 電着ダイヤモンドヤスリ 1 2 4 50 100 1 個 セラファイバー砥石...

Page 2: ...the operation until the Attachment cools down before restarting Do not touch tool holder tool etc while they are in the reciprocating motion Wear safety glasses dust mask and use a protective cover around the Attachment whenever the Attachment is reciprocating Be sure to keep this Attachment motor away from water It could cause an electric shock to the operator Make sure that the transmission clut...

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