6
. SPECIFICATIONS AND DIMENSIONS
6 - 1 Specications
Model
IR - 310
Maximum Allowable Motor Speed
Less than 40,000min
-1
(rpm)
Applicable Motor
ENK - 410S / ENK - 250T (Emax EVOlution)
IM-301 (ROTUS air motor)
Vibration Level
Less than 2.5m / s
2
Weight
92g
Noise Level at 1m distance
Less than 70dB
（
A
）
<Option>
Collet
（
CHH-
□□）
ȭ
1.0mm,
ȭ
1.5mm,
ȭ
1.6mm,
ȭ
2.0mm,
ȭ
2.35mm
ȭ
3.0mm, and
ȭ
3.175mm
6 - 2 Outside View
13.3
（
78.7
）
（
65.4
）
ȭ
20
ȭ
12.8
ȭ
13.3
Fig. 2
7
. CONNECTION OF THE ATTACHMENT TO THE MOTOR
CAUTION
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 in preventing contaminants from entering the motor
or Attachment.
Align the thread on the front end of the
motor and the rear end 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, rotate the Attachment
shaft by hand then re-try. The drive
shaft and the drive dog must be fully
engaged. When fully engaged, secure
the motor and Attachment using the
provided pin wrench (K - 233).
Transmission Clutch
Fig. 3
8
. CHANGING THE CUTTING TOOL
Turn the ring to the direction of OPEN, and the
collet will be loosened and the bur could be
removed. Turn the ring to the direction of LOCK,
and the collet will be fastened and the cutting
tool could be mounted. Make 'clank' when the
ring is turned (Fig. 4).
LOCK
OPEN
Fig. 4
②
Cleaning the collet
Keep the collet clean. It.is recommended
to clean the collet at least a week. Coat oil
lightly on the collet before putting it back
into the Attachment.
③
Mounting and adjusting the collet.
Turn the cutting tool / the dummy bur
clockwise to stop with the ring opened.
Return it about 1/5 ~ 1/4 to remove the cutting
tool / the dummy bur smoothly (Fig. 7).
Adjust the cutting tool referring to
③
, if it is easy and / or difficult to remove
the cutting tool.
ձ
Turn until finger-tight
ղ
1/5 turn
ղ
1/5 turn
CAUTION
・
When Ring is OPEN position, do not rotate the motor. This may
cause breakdown to the motor and Attachment. Be sure to conrm
the ring position is LOCK position, before rotating the motor.
・
Do not ring turn to the LOCK position, without inserting a cutting
tool or dummy bur, as this will result in damage to the collet.
10
. TROUBLESHOOTING
If a problem or concern occur, please check the following items prior to consulting
your dealer.
Trouble
Cause
Inspection / Corrective Action
Spindle does not
run with the
collet tightened.
(Ring is LOCK
position)
Cutting debris has
contaminated the ball
bearing, or the ball bearing
is out burned.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Spindle does not
rotate or rotate
smoothly.
The spindles ball bearings
are damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The motor has been
damaged.
Replace the motor.
(Return to NAKANISHI dealer service.)
The ring is OPEN position.
Turn the ring to LOCK position.
Overheating
during rotation.
Cutting debris has
contaminated the ball
bearing, and the ball
bearings are damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
Abnormal
vibration or noise
during rotation.
Using bent cutting tool.
Replace the cutting tool.
Cutting debris has
contaminated the ball
bearings.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
The spindles ball bearings
are damaged.
Cutting tool
slippage.
Collet is not correctly
installed.
Check and clean the collet.
Reinstall the collet and re-tighten.
Check the accuracy.
The collet is worn.
Replace the collet.
High run-out.
Cutting tool is bent.
Replace the cutting tool.
The collet is worn.
Replace the collet.
Inside of the spindle is
worn.
Replace the spindle shaft.
(Return to NAKANISHI dealer service.)
Contaminants inside
the collet or the spindle.
Clean the collet and the insid e of the
spindle.
The spindles ball bearings
are damaged.
Replace the ball bearings.
(Return to NAKANISHI dealer service.)
It is not possible
to mount / remove
the cutting tool.
Chucking system is broken.
Repair the chucking system.
(Return to NAKANISHI dealer service.)
The ring is not turned until
OPEN or LOCK position.
Turn the ring to OPEN or LOCK position.
The cutting tool is xed to
the collet.
Remove the cutting tool by using wrench.
(Refer to section
" 9.
REPLACING AND
CLEANING COLLET
"
)
11
. 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.
Contents are subject to change without notice.
2015
.
05
.
20
003
Fig. 7
9
. REPLACING AND CLEANING COLLET
①
Replacing the collet
Turn the collet counterclockwise with the ring opened, and the collet will be
removed (Fig. 5).
If it is hard to remove the collet, use the provided wrench.
The collet might be fastened and the cutting tool could not be removed, if the
cutting tool with large diameter is used under a high torque. Align the nose's
slit and Attachment's wrench position, and put an L shaped wrench to x the
Attachment. Open the ring, remove the dust proof cap to the tip of the collet
and turn the collet counterclockwise with a wrench for replacing collets to
remove it (Fig. 6).
Fig. 5
Loosen
Loosen
Fig. 6
5
. FEATURES
①
Ring type (twist) chucking system makes it easier to change tools.
②
The slim style, light weight Attachment is the best suited instrument for
delicate nish work.
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
