Nakanishi MFC-300 Operation Manual

90° Mini-Angle Attachment
MFC - 300
OPERATION MANUAL
Thank you for purchasing the 90° Mini-Angle Attachment " MFC - 300 ". This Attachment
designed for small hole ID nishing and deburring.
The Emax EVOlution Control Unit, Brushless Motor or ROTUS Air Motor / Air Line Kit 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.
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.
Class
A safety hazard could result in bodily injury or
WARNING damage to the device if the safety instructions are
not properly followed.
A hazard that could result in light or moderate
CAUTION bodily injury or damage to the device if the safety
instructions are not followed.
WARNING
① This Attachment is designed for hand use. Never install this Attachment or
any hand cutting tool on a machine such as a special purpose machine, NC
lathe or mill.
② Do not exceed the " Maximum Motor Rotation Speed " (Refer to " 6 - 1
Speci cations ").
③ Be sure to connect the reducer to the Attachment when using the
Attachment.
When not connecting the reducer to the Attachment may cause damage to
the inside components and short life of the Attachment.
④ Do not touch the cutting tool while it is rotating. It is very dangerous.
⑤ Wear safety glasses, dust mask, and use a protective cover around the
Attachment whenever the Attachment is rotating.
⑥ When installing a cutting tool, tighten the collet correctly and check again
the collet before use. Do not over-tighten the collet. This may cause
damage to the spindle.
⑦ Do not use grindstones with an outside diameter over
⑧ Do not exceed 13mm of overhang for mounted grindstones as shown
in Fig. 1. If the overhang must exceed 13mm, reduce the motor speed in
accordance with Table 1.
⑨ Do not use bent, broken, chipped, out of round or sub-standard cutting
tools as they may cause shatter or explode.
The cutting tool with cracked, bended may cause some injury to operator.
When using a new cutting tool, rotate it in a low speed and increase speed
gradually for safety.
⑩ Always operate cutting tools within the cutting tool manufacturer's
recommended speed limits. Use of a cutting tool higher than the
manufacturer's recommended speed limits could cause damage to the
spindle and injury to the operator.
⑪ Do not apply excessive force. This may cause cutting tool slippage, cutting
tool damage, injury to the operator, loss of concentricity and precision.
Table. 1 Overhang and Speed
Overhang (mm) Max. Speed (min
20 N x 0.5
25 N x 0.3
50 N x 0.1
*N = Max. Operating Speed with 13mm overhang.
CAUTION
① Do not drop or hit this Attachment, as shock can damage to the internal
components.
② Be sure to clean the collet, the spindle taper and threads before replacing
the cutting tool. If ground particles or metal chips stick to the inside of
spindle or the collet, damage to the collet or spindle can occur due to the
loss of precision.
③ 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.
④ Always clean the cutting tool shank before installing the cutting tool in the
spindle.
(M
Type Type
OM-K0195E
Degree of Risk
40mm.
-1 ) (rpm) 13
Fig. 1
CAUTION
⑤ When sizing the correct collet size to the cutting tool shank diameter, a
tolerance of +0 〜 - 0.01mm is strongly recommended.
)
A cutting tool shank within the +0 〜 - 0.1mm range is mountable, however,
this may cause poor concentricity and or insuf cient cutting tool shank
gripping force.
⑥ Select suitable products or cutting tools for each application. Do not
003
exceed the capabilities of the Attachment or cutting tools.
⑦ Keep everything in order not to place the rag which could be caught near
the hand tool.
⑧ Stop operating immediately when abnormal rotation or unusual vibrations
are observed. Immediately, please check the content of section
" 11. TROUBLESHOOTING ".
⑨ Always check if the cutting tool, collet is damaged before and after
operating.
⑩ If the collet show signs of wear or damage, replace it before a malfunction
or additional damage occurs.
⑪ No lubrication is required because grease impregnated ball bearings are
used.
⑫ 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.
⑬ 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.
2. BASIC PACKAGE
When opening the package, check if it includes all items listed in " Table. 2 Packing List
Contents ". In the event of any shortage, please contact either NAKANISHI (see the
" 4. CONTACT US " section) or your local dealer.
Table. 2 Packing List Contents
Attachment・・1pc.
Pin Wrench
(K - 233)・・ 1pc.
* M Type : 1.6mm (K - 253)・・1pc. S Type :
The collet is attached to the Attachment.
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.
① Defect in manufacturing.
② Any shortage of components in the package.
③ 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.
Contact Us Contact Us
For U.S. Market
Company Name
Business Hours
U.S. Toll Free No.
Telephone No.
Fax No.
Web Address
For Other Markets
Company Name
Business Hours
Telephone No.
e-mail Address
Collet* Chuck Wrench
(K - 232)・・1pc.
Operation Manual
・・1set
OPERATION MANUAL
1.6mm (K - 252)・・1pc.
:
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
:
: 8:00am to 17:00pm
(closed Saturday, Sunday and Public Holidays)
: +81 (0) 289-64-3520
: webmaster-ie@nsk-nakanishi.co.jp