Nakanishi Emax EVOlution User manual

OM-K0572E
003
2015.12.04 005◯A

A. GROUNDING INSTRUCTIONS
qIn the event of a malfunction or breakdown, grounding provides a path of least resistance for electric current to
reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding
conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
wDo not modify the plug provided - if it will not fit the outlet, have the proper outlet installed by a qualified electrician.
eImproper connection of the equipment-grounding conductor can result in a risk of electric shock. The conductor
with insulation having an outer surface that is green with or without yellow stripes is the equipment-grounding
conductor. If repair or replacement of the electric cord or plug is necessary, do not connect the equipment-
grounding conductor to a live terminal.
rCheck with a qualified electrician or service personnel if the grounding instructions are not completely understood,
or if in doubt as to whether the tool is properly grounded.
tUse only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that accept the tool's plug.
S
Cautions for handling and operation
...P.1
SComponent Names .........................P.3
SSetting Up the Control Unit............P.4
SOperating Procedures ....................P.5
S
Memory-Speed Function, FIXPEED
....P.6
SLoad Monitor LED ...........................P.6
SMotor Protection Circuit ................P.6
STurn-On-Memory Function ...........P.6
SError Codes .....................................P.7
SFuse Replacement .........................P.7
SMaintenance Mode ........................P.8
S
Motor and Attachment Operation
......P.9
SHandpiece Stand ..........................P.11
SHandpiece Holder ........................P.11
SSpecifications ...............................P.12
S
European EC Directive Conformation
....P.12
STroubleshooting ...........................P.13
S
Optional Motors and Handpieces
.....P.14
21
Thank you for purchasing Emax Evolution. This is a high-precision, extremely high speed micromotor
rotary hand tool system. This system is designed for high-precision, small diameter deburring,
grinding and a wide variety of other applications.
Keep this Operation Manual near Emax Evolution system for any operators to refer to whenever
operating this system.
Please read this Operation Manual carefully prior to use.
y
(120V) This tool is intended for use on a circuit that has an outlet that looks like the one illustrated in Sketch A in Figure
(below). The tool has a grounding plug that looks like the plug illustrated in Sketch A in figure (below). A temporary
adapter, which looks like the adapter illustrated in Sketches B and C, may be used to connect this plug to a 2-pole
receptacle as shown in Sketch B if a properly grounded outlet is not available. The temporary adapter should be used
only until a properly grounded outlet can be installed by a qualified electrician. The green-colored rigid ear, Iug, and the
like, extending from the adapter must be connected to a permanent ground such as a properly grounded outlet box.
Note : Adopter (Figure B) not for use in Canada.
uUSE PROPER EXTENSION CORD Make sure your extension cord is in good condition. When using an extension cord, be
sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in line
voltage resulting in loss of power and overheating. Table (below) shows the correct size to use depending on cord length
and nameplate ampere rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the cord.
qDo not exceed the " Maximum Allowable Motor Rotation Speed " (Refer to "SSpecifications ").
wWhen 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.
eAlways wear cap, gloves, Iong sleeve shirt, safety glasses and hearing protection anytime this device is in use.
rDo Not Touch the attachment or motor when the system is operating.
tThis is a high torque system and burs can grab on the workpiece. Always wear gloves to prevent injury anytime you
are using this system. Grinding and deburring produces lots of chips and other dust, keep work are clean and put
away items that can be damaged by chips, sand or other contaminants.
y
Check that the collet has been securely tightened prior to each use. Burs can fly loose from the chuck and injure operator or anyone nearby.
u
Avoid applying heavy hand pressure during operation; Iet the tool do the work. Heavy force can bend or break bur shanks
which can injure operator or anyone nearby. If the motor slows down noticeably during operation, you are applying too
much pressure; this type of operation will shorten motor, attachment and tool life and dramatically reduce productivity.
iDo not use bent, broken, cracked or damaged tools, or tools with excessive runout. When using tools with a very
large head to shank diameter ratio sudden speed increases can bend or break shank. When using a new or large
tool, rotate it at low speed and increase speed gradually for safety.
o
Always operate tools within the tool manufacturer's recommended speed limits. Use of a tool outside of the manufacturer's
recommended speed limits could cause damage to the spindle and injury to the operator. A foot pedal can be used to vary speed.
!0 Do not hit or drop the attachment or motor because the shock can damage internal components. Always set the
control unit on a flat, hard, steady surface.
!1 If the control unit, motor or attachment emit smoke, burning plastic odor or any other unusual odor, please
immediately turn off the power switch, disconnect the power cord and send to NAKANISHI for service.
!2 Never attempt to operate this system, touch power cord or switch unit on or off, etc. with wet hands. Failure to
adhere to this warning can result in severe electric shock.
!3 Use only tools with shank diameter tolerance similar to the chuck I.D. tolerance.
!4
The motor has a nakanishi Smart switch which provides a click sensation. Be careful when operating the switch, because the motor is on/off.
!5 Do not exceed 13mm overhang for mounted grindstones. In case overhang must exceed 13mm reduce the motor
speed in accordance with Table 1 .
!6
Do not disassemble, modify or attempt to repair the control unit, motor, motor cord, attachment and foot pedal. Additional
damage internal components. Service must be performed by NSK NAKANISHI or an authorized service center.
Contents
Cautions for handling and operation
Read these cautions carefully and only use in the manner intended.
Safety instructions are intended to avoid potential hazards that could result in personal
injury or damage to the device. Safety instructions are classified as follows in accordance
with the seriousness of the risk.
WARNING
CAUTION
NOTICE
Class Degree of Risk
A hazard that could result in bodily injury or damage to the device if the safety
instructions are not followed.
A hazard that could result in light or moderate bodily injury or damage to the device if
the safety instructions are not followed.
General information needed to operate the device safely.
B. OTHER WARNING INSTRUCTIONS
Grounding Method
Minimum gauge for cord
ADAPTER
METAL SCREW
COVER OF GROUND
OUTLET BOX
GROUNDING
MEANS GROUNDING
PIN
GROUNDING
PIN
Volts
120V
240V
7.5m (25ft.) 15m (50ft.) 30m (100ft.) 45m (150ft.)
15m (50ft.) 30m (100ft.) 60m (200ft.) 90m (300ft.)
Ampere Rating
Total length of cord
More
Than
0
6
10
12
Not
More
Than
6
10
12
16
18
18
16
14
16
16
16
12
16
14
14
14
12
12
Not Recommended
Only the applicable parts ot the Table need to be included. For instance, a 120volt product need
include the 240-volt heading.
N : Max. operating speed at 13mm overhang.
Overhang (mm)
20
25
50
N x 0.5
N x 0.3
N x 0.1
Maximum Operating Speed min-1
Table 1. Overhang versus Speed
13

43
SSetting Up the Control Unit
1.Connecting the Motor/Attachment
Insert the motor cord plug into the Motor A Connector oor the
Motor B Connector !4, and align the pin on the plug with the
groove on the connector and tighten the motor cord plug nut.
(Fig. 3)
2.Connecting the Optional Foot Pedal
Insert the foot pedal cord plug into the Foot Pedal Connector @1
and align the pin on the plug with the groove on the connector.
(Fig. 4)
3.Connecting the Power Cord
Insert the Power Cord @2 plug into the Power Connector
Assembly @3 on the back of the control unit securely and
carefully align the pins. (Fig. 5)
Fig. 3
Fig. 4
Fig. 5
7
9
21
12
14
23
22
C. CAUTION
qThe system function normally in the environment where the temperature is at 0-40˚C. humidity at 10-85% RH, atmospteric
pressure at 500-1060hPa, and no moisture condensation in the Unit. Use at outside of these Limits may cause malfunction.
wStore the system in the place where the temperature is at -10-60˚C, humidity at 10-85% RH, and the system is not
subject to air with dust, sulfur, or salinity.
eDo not install system next to RF noise sources malfunctions can occur.
rInstall equipment so that the power supply cord can be pulled out without hindrance in event of emergency.
tThis system is not approved for use in flammable or explosive environments or with flammable or explosive materials.
yNever oil the bearings. This attachment is assembled with permanently greased bearings.
uPlease check the motor and handpiece prior to each use for vibration, abnormal noises, heat, and rough or stiff rotation.
If any of the above conditions are beyond acceptable limits, please send the system to NAKANISHI for service.
iNever move the Chuck Control Ring to Open while the motor is running, the motor and attachment will be damaged.
Only change tool with the motor completely stopped.
oWhen using large cutting tools, tools with a head diameter larger than 4mm rotate the motor and attachment at slow
speed. It is very easy to bend and break large cutting tools at high rotation speeds.
!0 If the motor protection circuit repetitively activates and stops the motor, you are using too much force. Please use
less hand force and continue the operation. Heavy handed usage will result in dramatically shortened motor,
attachment and tool life.
!1 Please clean the chuck and spindle center shaft weekly as failure to do this can cause contaminants to build up in
the chuck and increase runout or reduce the clamping strength of the chuck.
!2 Do not disassemble or alter the product by yourself.
!3 Be sure to replace fuse with the correct type and rating.
!4 Do not spill any liquid on the controls.
!5 Please be careful not to be injured by the grinder or bur.
!6 Be sure to turn the power off before cleaning and maintenance of the Handpiece.
D. NOTICE
qDo not tighten the collet without mounting a cutting tool or dummy bur as this will result in damage to the collet and spindle.
wDon't use pencils, pens or other sharp objects on the Front Panel buttons.
eUser is solely responsible for maintaining control of operation, maintenance and periodic inspection of the system.
rEquipment to be send back to manufacturer for servicing / repair.
tOnly use with original power supply cord. In case of damage, contact NSK / NAKANISHI service center.
Fig. 2
qControl Unit
wSpeed Control Knob
eSpeed Display
rLoad Meter
t
Forward / Reverse Selector Switch
yForward / Reverse LED
uMotor A Switch
iMotor A LED
oMotor A Connector
!0 FIXPEED Switch
!1 FIXPEED LED
!2 Motor B Switch
!3 Motor B LED
!4 Motor B Connector
!5 Power Switch
!6 Handpiece Holder
!7
Optional Foot Pedal (FC-64)
!8 Motor Handpiece
(IR-310,ENK-410S)
!9 NAKANISHI Smart Switch
@0 Handpiece Stand
@1
Foot Pedal Connector
@2 Power Cord
@3 Power Connector Assembly
SComponent Names
Fig. 1
17
18
20
19
2
3
1
10 11
16
12
8
7
6
5
13
14
15
4
9
2223 21

65
(1) Insert the Power Cord Plug @2 in a grounded wall
outlet.
(2) Make sure the Speed Control Knob wis set at the
lowest speed position.
(3) Turn Power Switch !5 ON , and check if Speed
display e shows.
(4) Select the direction of rotation with the
Forward/Reverse Selector Switch t. Each time this
switch is pressed, the direction changes. When the
FWD./REV. LED yis not lit, it shows Right hand
rotation (FWD.)
(5) To switch between motor A and motor B press either Auor B!2 to select the respective motor.
The LED on the control unit for the selected motor will light. Either push Auor B!2 again to start
rotation or push the NAKANISHl Smart Switch on the appropriate motor.
SOperating Procedures 21
3
CAUTIONS
• If the motor LED is already lit pressing the Auor B!2 button will start rotation. Please
look carefully at the control unit's front panel before pushing the motor select button.
• Motor A and B can not be run simultaneously.
NOTE
FIXPEED memory cannot be set over 30,000 min-1.
Operation 1
Manual Operation
(6) Set the rotation speed with the Speed Control Knob wand check the speed on the Speed Display e.
(7) Select the desired motor by pressing either Motor Switch Auor B!2.
Au = A Motor B!2= B Motor
After selecting the motor either press the NAKANISHI Smart Switch !9 or press the Motor Switch again.
(8) To stop the motor rotation either press Motor Switch Auor B!2 or the NAKANISHI Smart Switch again.
Operation 2
Foot Pedal Operation
(6) Set the maximum rotation speed with the Speed Control Knob wand check the speed on the Speed
Display e.
(7) Depress Foot Pedal !7 and the motor will rotate. The rotation speed can be varied up to the preset
maximum, depending on the degree of depression of the Foot Pedal !7.
* Auto Speed System
To fix the speed within the range set by the Speed Control Knob w, with the motor running,
depress the Foot Pedal !7 to the desired speed and press Motor Switch Auor B!2, depending
on which motor is being used. The Motor LED on the control unit will flash and the rotation speed
will be maintained even if the Foot Pedal !7 is released. To cancel the Auto Speed System press
Motor Switch Auor B!2, the NAKANISHI Smart Switch !9 or depress the Foot Pedal !7 again.
SMotor Protection Circuit
When the motor is operated with a load exceeding its limits or the handpiece is locked, the Motor
Protection Circuit operates and interrupts the power supply to the motor. When the Motor Protection
Circuit has been triggered an Error Code appears on the Speed Display e.
During manual operation the circuit can be reset by pressing Motor Switch A uor B !2 again. During foot
pedal operation, release the Foot Pedal !7 completely and the circuit will be reset.
Resetting the Motor Protection Circuit
SLoad Monitor LED
The motor handpiece /control unit load is displayed by 6LED’s (3 Green,2 Yellow,1 Orange).
Continuous operation is possible with up to all 3 green LED’s lit.
SMemory-Speed Function, FIXPEED
(1) Setting the Memory Speed Function
First with the motor stopped, preset the desired speed on the Speed Control Knob w. Next, press
the FIXPEED Switch !0 for more than 1 second. A 'beep' will sound and the FIXPEED LED!1 will
light. The motor is now set to run at the FIXPEED setting.
To Change FIXPEED Memory
Repeat the above procedure.
(2) Using Memory Speed Function
Select the desired motor by pressing either Motor Switch Auor B!2.
Au = A Motor B!2 = B Motor
After selecting the motor either press the NAKANISHI Smart Switch !9 or press the Motor Switch
again. The FIXPEED LED!1 will flash when the motor is running. During Foot Pedal !7 operation
the FIXPEED set in memory will act as the upper limit and the Foot Pedal !7 will still vary speed.
(3) Clearing the FIXPEED Memory
Push and hold the FIXPEED Switch !0, a 'beep' will sound and the FIXPEED LED!1 will shut off.
The FIXPEED memory is cleared.
(4) To Undo the Clear
Press the FIXPEED Switch !0, the FIXPEED LED!1 will light. The FIXPEED memory has been
restored.
* When the Emax Evolution system is shipped from the factory, the FIXPEED is preset for both
motor A and B to 20,000 min-1 .
Fig. 6
4
5
6
10
11
12
14
15
9
8
13
7
STurn-On-Memory Function
When the Power Switch !5 is turned On, the rotation direction and FIXPEED selections being used
when the unit was shut down are restored. Please pay careful attention to the rotation direction.

87
SError Codes
When the Motor Protection Circuit stops the motor due to some system failure, such as overload,
wire breakage, misuse or circuit problems, the Speed Display ewill display an Error Code.
SFuse Replacement
Fuses are located in the Power Connector Assembly @3.
Depress the spring tabs located on the top and bottom of the
Power Connector Assembly and remove it to change the fuses.
(T1.6AH250V for 120V, T300mAH250V for 230V). (Fig. 7)
NOTE
Please make sure to replace fuses with the same rated 'Slow Blow' or 'Time Delay' type
fuses. Failure to replace with the proper type fuse will result in continuous fuse failures or
damage to the unit and motor.
CAUTION
Fuses blow only when a short circuit or voltage spike on the AC Iine occurs. If you are
uncertain of the cause for a fuse failing, send the unit to an authorized NAKANISHI
service shop for repair.
Fig. 7
23
For solutions to the error codes please see the Troubleshooting Section of this manual.
SMaintenance Mode
This system incorporates a maintenance mode to check the function of the switches, display, foot
pedal, motor, and etc. To activate the Maintenance Mode press and hold the FIXPEED Switch !0 and
Motor Switch A usimultaneously and turn the Power Switch !5 on. Hold the buttons until the unit
'beeps' (about 2 seconds). With maintenance mode activated the Speed Control Knob wwill switch
between function checks and the function will be displayed in the Speed Display e. The check will
be displayed in the following order from lowest speed setting "oP", "dP", "HL", "Pd" and "in"
To release Maintenance Mode, turn the unit off and on again.
Function Checks are as follows
1. [oP] : Switch operation check
Press the switch on the panel you wish to check and the light on the panel will light to indicate
proper operation of the switch.
2. [dP] : Display check
Press the Forward/Reverse Selector Switch t, and the LEDs will light one by one to verify their
normal operation. To cancel this test press the Forward/Reverse Selector Switch tagain.
3. [HL] : Motor Signal check (Hall IC check)
Press the Forward/Reverse Selector Switch tand the Speed Display ewill display one or two
horizontal lines. Turn the motor slowly by hand and the display will show one line, two lines, one
line, two lines,...smoothly from top to bottom to top. If any one of these three lines does not light,
the sensor (Hall IC) is bad or the signal line in the motor cord is cut. Please send the unit and
motor for repair. To cancel this check, press the Forward/Reverse Selector Switch tagain.
4. [Pd] : Foot Pedal check
Press the Forward/Reverse Selector Switch t, and the Speed Display ewill display
alphanumeric characters (0-9, A-F) according to the degree of depression of the Foot Pedal !7.
Also depressing the foot pedal slightly lights the Motor A LED iand depressing it fully
extinguishes the LED. If the Speed Display edoes not change smoothly or the Motor A LED i
does not light properly, the Foot Pedal !7 may be bad. To cancel this check, press the Forward/
Reverse Selector Switch tagain,
5. [in] : Initializing Function
Press the Forward/Reverse Selector Switch tuntil a 'beep' is heard. The settings for rotation
direction and other settings will be reset to factory defaults.
Rotation Direction : FWD (Forward)
Motor Selector Switch : A
FIXPEED : 20,000min-1
Error cord Description Cause
E 0 Self-check error • Abnormal internal memory
• Broken internal memory
E 2 Overvoltage detection error • Shorted cord (power line),damaged circuit
• Broken internal circuit
E 4 Unit overheat error • Temperature rise in the unit due to longtime use at a high load
• Unit placed under high temperature
E 5 PAM circuit error • Abnormal voltage generated in start / stop circuit
• Faulty start / stop circuit from PAM(L Slide)
E F Foot pedal error • Faulty Foot Pedal or Shorted Foot Pedal cord
• Broken internal circuit
E 6 Rotor lock error
• Open chuck
• Faulty handpiece
• Motor Faulty
• Faulty sensor (Hall IC)
• Severed cord (signal, power line)
E 1 Overcurrent detection error
(Hard)
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shorted motor winding
E 3 Motor sensor error
• Faulty sensor (Hall IC)
• Disconnected motor cord
• Severed cord (signal line)
E 8 Overvoltage detection error
(Soft)
• Long-time use at a high load (overcorrect)
• Shorted cord (power line)
• Shortstop of the motor winding
E 9 ITRIP error • Faulty motor and circuit

109
SMotor and Attachment Operation
1. Installation and Removal of Burs
Open the chuck by turning the Bur Lock Ring to the open
position. The chuck is open and the bur can be removed. Install
the new bur and turn the Bur Lock Ring in the Lock direction.
Finally turn the Bur Lock Ring all the way to the Lock position
until it clicks. (Fig.8)
Fig. 8
2. Cleaning and Replacement of the Chuck
(1)Removal of the Chuck
Open the Bur Lock Ring and turn the chuck counterclockwise
until you can remove the chuck. Normally, the chuck can be
removed and replaced by hand; if it is too tight use the
included wrench to remove it as shown in the picture (Fig. 9)
*Occasionally, when using a large diameter bur at high torque, the chuck may
gradually tighten making it difficult to remove. In this case align the spindle's
wrench flats in the nose's slits and use the provided L wrench to hold the
spindle. Open the Bur Lock Ring and turn the chuck counterclockwise with
the provided chuck wrench to remove the chuck. (Fig. 10)
(2)Cleaning the Chuck and Spindle
Remove and thoroughly clean the chuck and ID of the spindle
to maintain accuracy. Remove the chuck and clean the chuck
and spindle ID at least once a week.
(3)Installation and Adjustment of the Chuck
Apply a thin coating of oil to the chuck before installation.
Open the Bur Lock Ring, insert a dummy bur cr cutting tool
into the chuck and then turn the chuck clockwise by hand until
it stops. Next, turn the chuck back, counterclockwise, about
1/5 of a turn to allow the bur to be easily released when the
chuck is open. Finally, turn the Bur Lock Ring until it clicks,
Iocking the bur in place. (Fig. 11)
* The chuck's clamping force can be adjusted as shown in Fig. 11, if the bur
slips or the bur can not be removed, make adjustments as shown above.
Fig. 9
Loosen
Fig. 10
Loosen
Fig. 11
Turn until finger-tight
1/5Turn1/5Turn
1/5Turn
CAUTION
Never turn the Bur Lock Ring while the motor is rotating. Turning the Bur Lock Ring
with the motor rotating can cause injury and damage to motor and attachment.
LOCK
OPEN
Fig. 12 Removal Fig. 13 Connecting
Motor Cord Nut
Loosen
3.Disconnecting and Connecting the Motor Cord to the Motor
Removal
• Turn the motor cord nut counterclockwise and remove the cord. Hold the motor nut only when
disconnecting the motor cord; do not pull on the motor cord.
4.Removing the Handpiece from the Motor.
The Handpiece and Motor are screwed together at the rear of
the Handpiece. Hold the motor body and attach the provided
pin wrench to the rear of the Handpiece. Turn the pin wrench
counterclockwise and unscrew the Handpiece. (Fig. 14)
Connecting
• Carefully align the pins on the motor with the holes on the motor cord connector and gently push
the motor cord connector onto the motor.
• Tighten the motor cord nut by turning clockwise until it is tight.
CAUTION
To connect the Handpiece to the Motor, turn the
Handpiece clockwise and tighten firmly. If the drive
connections do not align properly, you will not be
able to turn the attachment more than two turns. If
this happens, DO NOT FORCE. Unscrew the
attachment slightly and turn the bur by hand until
the drive connections align, and then screw the
motor and attachment together. (Fig. 15)
Fig. 14
Loosen
Fig. 15
Transmission Clutch
CAUTION
• Do not remove the motor cord except when exchanging the motor cord.
• Be careful not to lose an o-ring between the motor and the motor cord
when exchanging the motor cord.
• Be very careful to push the motor cord connector straight into the motor.
The motor pins can be bent easily and cannot be bent back.

On the bottom of the Handpiece stand, the tools necessary for
attachment maintenance and a spare chuck (optional) can be
mounted. (Fig. 16)
1211
Model Number
Power Requirements
Weight
Dimensions
Fig. 17
Fig. 20Fig. 19Fig. 18
SHandpiece Holder
SSpecifications
Insert the handpiece holder into the hole at the each side with the
control unit, and fix it with the provided screw to fit the usable
angle. (Fig.17)
The attachment example of handpiece holder shows Fig. 18, Fig. 19,
Fig. 20.
If the holder is attached as Fig. 20, be sure to insert only the standard
motor ENK-410S.
And there is the case the holder can’t be used all for the attachments.
Control Unit
NE249
AC120V, 50/60Hz,41VA / AC230V,
50/60Hz,41VA
2.3kg
W130 x D254 x H97mm
Model Number
Weight
Handpiece Stand
K-274
120g
Model Number
Weight
Handpiece Holder
K-273
20g
Fig. 16
SHandpiece Stand
Model Number
Motor Rotation Speed
Max. Output
Max. Torque
Weight (W/O Cord)
Cord Length
Model Number
Weight
Foot Pedal
FC-64
460g
Motor
Attachment
ENK-410S
1,000 - 40,000 min-1
73W
4.3 cN.m
90g
1.5m
(1) Standard Type
Model Number
Motor Rotation Speed
Max. Output
Max. Torque
Weight (W/O Cord)
Cord Length
ENK-250T
1,000 - 25,000min-1
76W
4.8cN.m
147g
1.5m
Model Number
Maximum Allowable
Motor Rotation Speed
Weight
Collet Chuck
IR-310
Less than 40,000 min-1
92 g
ø3.0 mm(CHH-3.0) ø2.35 (CHH-2.35)
Less than 2.5m/s2
(When connecting to the motor)
Less than 80dB(A)
(When connecting to the motor)
(2) Torque Type
Vibration Level
Noise Level
SEuropean EC Directive Conformation
The Products are conformed to EC Directives & EC Standards.
Machinery Directive 98/37/EC, 2006/42/EC
Low Voltage Directive 2006/95/EC
EMC Directive 2004/108/EC
Principle Standards : EN ISO 14121-1 : 2007 (ISO 14121-1 : 2007)

13 14
Trouble Cause/Check Remedy
The Attachment does not turn
with the chuck closed
Attachment gets hot during
use
Vibration or Noise during use
High Runout
Bur slips out
Bearings Contaminated or Seized. Send for Service.
Bearings Contaminated. Same as Above.
Same as Above. Same as Above.
Contaminants in chuck or spindle. Clean the chuck and spindle ID.
Chuck is worn. Replace the chuck.
Bearings worn. Send for Service.
Chuck is Loose. Adjust the Chuck.
Bur is bent or damaged. Replace the bur.
Attachment
Trouble Cause/Check Remedy
Speed Display does not light
The power plug is disconnected. Insert the power plug correctly.
Power Switch is faulty.
The connection of the foot control cord plug is loose.
Foot Pedal dose not
work.
Error code E0 appears.
Ask for repair.
The fuse is blown.
Replace it with a specified fuse. If the reason the fuse has
blown is unknown, ask for an inspection.
The motor and handpiece do not run
Maintenance mode (4) “Pd”: Check to
see if the foot control operates normally.
Connect the foot control cord plug correctly.
If the foot control dose not operates normally, ask for
repair of the foot control or replace it with a new one.
Turn on the power again. If the same error code appears, ask for repair of the unit.
Turn on the power again. If it operates normally, the error display is temporarily due
to overload,which is not a problem.
Error code E1 appears.
If it operates normally after replacing the motor and the motor
cord, the motor and/or the motor cord may be shorted. Ask for
repair of the motor and/or the motor cord. If the same error code
still appears after replacing, ask for repair of the unit.
If you have two or more units, replace
the motor and check the operation.
The motor cord is disconnected. Connect the motor cord correctly.
If you have two or more units, replace the
motor and the motor cord and check the
operation.
Error code E2 appears.
The motor cord is disconnected. Connect the motor cord correctly.
If any problem is found during a check, the motor cord
may be severed or the sensor in the motor may be faulty.
Ask for repair.
If it operates normally, there is no problem. Check the operating
environment, storage location, etc., for high temperature. If the
same error code appears frequently, ask for repair of the unit.
Maintenance mode (3) “HL”: Confirm
whether you work by a motor signal
check normally.
Error code E3 appears.
Error code E4 appears.
After stopping to cool it down place for
about 10 minutes, check the operation
again.
If it operates normally, there is no problem. If the same
error code appears, ask for repair of the unit.
Lock the chuck. If any problem is found during a check, the motor cord
may be severed or the sensor in the motor may be faulty. Ask for repair.
Error code E5 appears.
Error code E6 appears.
Error code E8 appears.
Error code E9 appears.
Error code EF appears.
The rotation speed does not
rise.
Turn on the power again, and repeat
starting and stopping several times.
The chuck is open.
If any problem is found during a check, the motor cord
may be severed or the sensor in the motor may be faulty.
Ask for repair.
Maintenance mode (3) “HL”: Confirm
whether you work by a motor signal
check normally.
If the rotation is abnormal, ask for repair of the motor and
handpiece.
Check turning a tip with a finger lightly
and turning around it lightly.
Error indication is a temporary thing by the overload if I
work normally. There is not it abnormally.
Turn on the power again.
If it operates normally after replacing the motor cord, the motor
and/or the motor cord may be shorted. Ask for repair of the
motor and/or the motor cord. If the same error code still appears
after replacing the motor cord, ask for repair of the unit.
If it operates normally after replacing the motor cord, the motor
and/or the motor cord may be shorted. Ask for repair of the
motor and/or the motor cord. If the same error code still appears
after replacing the motor cord, ask for repair of the unit.
If it does not operate normally, change the Foot Pedal for
new or ask for repair.
Set the maximum rotation speed with the Speed Control
Knob.
If you have two or more units, replace the
motor cord and check the operation.
If you have two or more units, replace the
motor cord and check the operation.
Maintenance Mode (4) “Pd”: Check
whether Foot Pedal operates normally
by Foot Pedal Chuck.
The maximum rotation speed for operation by foot
pedal should be set with the Speed Control Knob.
STroubleshooting
When trouble is found, please check the following prior to consulting your dealer.
Control Unit and Motor
Product Model No.
Model No. Specification
SOptional Motors and Handpieces
Ring Type Attachment
IR-310
Torque Type Motor
ENK-250T
Standard Type Motor
ENK-410S
Lever Type Attachment
IH-300
Straight Type Attachment
IG-400
Simple lever turning for bur exchange. Designed to make it light
weight and fit to pen-grip type holding. ø2.35mm, ø3.0mm or
ø3.175mm (1/8")
High precision NK Micron Collet Chuck system. Strong tool
retention strength and highly precision metal removal are
achieved.
Torque Type Attachment
HG-200 Chuck Diameter ø6.0mm or ø6.35mm (1/4")
BMH-300
MFC-300S
MFC-300M
90˚Angle Attachment IC-300
90˚Angle attachment with ø3.0mm or ø3.175mm (1/8") Collet Chuck.
When using it with Rubber Pad or Felt buff in lower speed, please use
RG-01 Reducer together.
45˚Angle Attachment KC-300
Reciprocating Type Compact
Grinder LUSTER LS-100
Reciprocating Type Compact Grinder
(Built in motor) LUSTER NLS-110
The grinding surface can be set at any between 0 and 360˚.
Stroke range:0-6mm adjustable by allen wrench.
Fine Belt Sander
KBS-101
8mm Belt (Grits #120, #240, #400 )
6mm Belt (Grits #120, #240, #400 )
4mm Belt (Grits #120, #240, #400 )
1/4 Reduction Gear
RG-01
May be Connected between Motor and Attachment for 4 time
the Regular Power
Extension Joint
CN-01
Joint used by Connection between Attachment and Motor to
Extend the Length
MINI-LUSTER
ML-8
Stroke range of 0.8mm, Reciprocating Stroke (variable):Approx0-9,000 times/min.
Suitable for polishing narrow grooves, details, etc. Stroke range of 0.8mm.
1,000-40,000min-1 Brushless Motor. Excellent combination of high
speed, light weight, small diameter, high torque and FWD/REV
rotation.
1,000-25,000min-1 Brushless Motor. Higher power and higher
torque than Standard motor ENK-410S.
Ring type chucking system makes it easier to change tools.
This unique slim body makes it ideal for cutting and grinding the
bottom surface of deep ribs or holes Chuck diameter ø3.0mm
or ø3.175mm (1/8") Optional ø2.35mm
90˚MINI ANGLE TYPE Attachment for Chamfering Deep Hole,
Bur Only ø1.6mm
ø25
102
ø14
60
ø13
120
62.3
108
64
ø13
13.8
96
20.2
ø12.8
57.3
97
ø18.9
41.9
185
If it operates normally after replacing the motor and the motor
cord, the motor and/or the motor cord may be severed. Ask
for repair of the motor and/or the motor cord. If the same error
code still appears after replacing, ask for repair of the unit.
ø20
ø3.3
119
ø18.9
50.1
ø15
85.4
ø8
ø3.3
"Speed Display " and "Set Rotation
Speed" is displayed repeatedly.
Put the power switch, depressing the
foot pedal ?
Put the power switch again without depressing the foot pedal.
When the trouble is repeated if so, put out the plug of foot pedal and
reset the power switch. Then the trouble is repeated, ask for repair.
ø18.1
61.4
Table of contents
Other Nakanishi Grinder manuals
Popular Grinder manuals by other brands

DeWalt
DeWalt DCG406N Original instructions

Scheppach
Scheppach TIGER 3000VS Translation from the original instruction manual

Cornwell Tools
Cornwell Tools CAT-550 Operating instructions, warning information, parts breakdown

Itouchless
Itouchless PM003S user manual

Marpol
Marpol 4300 Instruction handbook

Milwaukee
Milwaukee 6140-30 Operator's manual