Nitto Kohki L-25B User manual

Due to continuous product development/improvement the specifications and configurations in this
document are subject to change without prior notice.
Manufactured by :
NITTO KOHKI Co., Ltd.
2-9-4, Nakaikegami, Ohta-ku,
Tokyo, 146-8555, Japan
TEL : [phone]
FAX : [phone]
E-mail : [email protected]
URL : www.nitto-kohki.co.jp
PNEUMATIC DIE GRINDER
Please read this manual carefully before you attempt to use
your tool so that you may use it properly and safely.
AIR SONIC Model L-25B, L-35C, AL-55
PROFESSIONAL TOOL
Specifications
Model L-25B L-35C AL-55
Maximum Operating MPa 0.6
Air Consumption (No load) m3/min 0.4 0.35 0.17
Rated Speed (No load) min-1 27,000 37,500 56,500
Size of Collet Chuck mm 6 6 3
Mass (Weight) kg 0.6 0.45 0.25
Sound Pressure Level dB (A) 76 76 71
Sound Power Level dB (A) 87 87 82
Vibration Level m/s20.4 0.6 0.4
Thread Size of Air Inlet Rc1/4 Rc1/4 G1/4
Keep the manual handy – so you can use it whenever necessary.
Original Instructions
L-25B
L-35C
AL-55

1
The following Safety notations are used throughout the manual to highlight safety precautions for the user and for
the tool.
WARNING: Indicates a potentially hazardous situation which, if not avoided by following the
instructions given, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided by following the
instructions given, could result in injury or material damage.
Please note, however, that failure to observe safety precautions under the “ CAUTION” category could result in a
serious occurrence depending on the situation: please observe all safety precautions in the manual.
Caution: Important precautions for tool setup, operation and maintenance.
Thank you very much for your purchase of this
Nitto Kohki products.
Before using your tool, please read this manual
carefully so that you may use it properly to get
the most out of it.
Please keep the manual handy - so you can
use it whenever necessary.
・English : Please ask your dealer or
distributor for instruction manual
in local language(s).
・German : Bitte fragen Sie lhren Händler
nach eine Betriebsanleitung in
Landessprache.
・French : S'il vous plait, veuillez demandez
á votre foumisseur de manuel
instruction en langue locale.
・Spanish : Por favor, cantacte con su
distribuidor para el manual de
instrucciones en español.
・Portuguese : Por favor pessa ao seo agente
ou distribuidor o manual de
instrucces ih linguagen local.
・Italian : Per Manuale Istruzioni in lingua
locale Vi preghiamo di rivolgervi
al rivenditore o distributore.
・Dutch : Vraag uw handelaar
om een nederladstalige
gebruiksaanwijzing.
・Swedish : Be er lokala Åtreförsäljare eller
distributör om manualer pá
svenska.
・Danish : Venligst henvend Dem til den
danske distributør for instructions
manualer.
・Polish : Prosze pytac swojego dealera
lub dystrybutora o instrukcje
obslugi w jezyku localnym.
・中文 :請向當地供應商或経銷商詢問中
文使用説明書
CONTENTS page
IMPORTANT SAFETY INSTRUCTIONS ……………………2
GENERAL: TOOLS ……………………………………………2
GENERAL: PNEUMATIC TOOLS …………………………3
INSTRUCTIONS FOR THIS TOOL …………………………4
1. USAGE ……………………………………………………4
2. CHECK THE CONTENTS OF THE PACKAGE ………4
3. AIR SUPPLY ………………………………………………5
4. ATTACHMENTS ………………………………………… 5
5. MOUNTING AND REMOVING MOUNTED WHEELS
AND ROTARY BURRS …………………………………… 5
6. HOW TO OPERATE THE TOOL ………………………6
7. THREAD SIZE OF HOUSE FITTING…………………… 7
8. STORAGE ………………………………………………… 7
9. ORDERING SERVICE PARTS …………………………7
10. OPTIONAL PARTS ……………………………………… 7
11. EXPLODED DIAGRAM: L-25B PARTS LIST …………8
12. EXPLODED DIAGRAM: L-35C PARTS LIST …………9
13. EXPLODED DIAGRAM: AL-55 PARTS LIST ……… 10
PICTOGRAM
Warning: It might be dangerous to operate the tool if
the instructions supplied are not followed.
Using this tool improperly could result in serious injury.
Read the instruction manual before using.
Always wear suitable eye protection.
Always wear suitable hearing protection.
Always wear respiratory protective equipment (PPE).

2
IMPORTANT SAFETY
INSTRUCTIONS
When using the tool, please observe the safety
precautions below to prevent possible accident or
injury.
GENERAL: TOOLS
WARNING
TO OPERATORS
●
Wear proper clothing for the type of work being
done.
Take care so that clothing, ties, hair, etc. will not
become entangled with the moving parts. If items
become entangled it will cause the operator to be
pulled towards the tool and lead to possible cause of
accident or injury.
●Always wear suitable eye protection.
Remember, regular glasses are not safety glasses.
The lenses are only shock resistant, which will not
give you sufficient eye protection you may need in
your working environment.
●Always wear suitable hearing protection.
●Wear respiratory protective equipment (PPE).
Wear respiratory protective equipment (PPE) when
working in an environment where dust particles are
generated in operation.
●Always wear suitable protective gloves.
●Avoid working posture that is too stressful.
Always ensure a firm footing and well balanced
posture.
●Do not operate the tool if you are too tired.
●
Never touch any moving parts of the tool when
running.
ABOUT WORK AREA
●Keep the work area clean.
Cluttered work areas (e.g. workbench) invite
accidents.
●Carefully select the work area.
Do not expose tool to rain.
Do not use tool in a wet or soaked area.
See that the work area is adequately illuminated.
●
Never work near inflammable liquid or in a
potentially explosive atmosphere.
●Keep children away from the work area.
Keep children and unauthorized people away from
the work area to avoid accident or injury.
BEFORE OPERATION
●Inspect tool before use.
Before using, check that screws are securely
tightened, that any protective cover or guard is
securely in place, other parts are free from damage
and that the tool runs as it should.
Check that moving parts are properly adjusted for
positioning and tightened, that parts are free from
damage and properly mounted, and that all other
parts are in good condition for normal operation.
Should you find any damage to the protective
cover or other part, replace it in accordance with
the Operation Manual. If there are no instructions
in the Manual, please contact the sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
Likewise, if a switch failure occurs, contact sales
agent through which you have purchased your tool
or an authorized dealer near you for repair.
Do not use the tool if it does not start or stop with
the start/stop switch.
●Securely mount cutter
An improperly mounted cutter may fly out, causing
possible damage to the tool or injury to the operator.
●
Always remove spanner, wrench, etc., once
adjustment has been made with them.
●Use a tool appropriate for the application.
Avoid heavy-duty application that is beyond the
capacity of tool.
●Do not use the tool for purposes other than what
it is designed for.
●Do not abuse tool.
Use tool in accordance with the specifications: you’ll
get the most out of it while ensuring safety.
●Securely fasten workpiece in place.
Use a vice or clamp to securely fasten the workpiece in
place. It is much safer this way than holding it in your
hand, allowing you to operate the tool with both hands.
ABOUT HANDLING
●How to store tool.
When the tool is not used, store it in a dry area and
out of reach of children.
●How to carry tool.
Do not touch the start switch while the tool is being
carried.
●
Do not leave the tool unattended while it is
running.
Turn off the start switch and disconnect the tool from
power source. Do not leave the work area until the
tool comes to a complete stop.

3
MAINTENANCE/SERVICE
●Do not take apart or modify tool.
Disassembly or modification carried out without
the supervision of a qualified or authorized service
engineer could result in an accident or injury.
●Inspect cutting tool and accessories, etc.
Always check to see that cutting tool and
accessories, etc. are in good operating condition
without damage or deterioration before you mount
them on the tool. Should you find any damage to
an accessory or part, please contact sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
●Check parts for damage.
When you have found damage to accessory or other
part, carefully check the damaged part to determine
the extent of influence it has upon the functions
of the tool – that is, determine whether it can still
perform its normal functions.
Check to see that the linkage of the moving parts
is OK, that all parts are OK without damage,
that they are properly mounted, and that the tool
functions normally. Should you find any damage
to an accessory or part that may hamper proper
functioning of the tool, please contact sales agent
through which you have purchased your tool or an
authorized dealer near you for repair.
●
Have your tool repaired at an authorized Nitto
Service Center.
For repair or parts replacement, please contact the
sales agent through which you have purchased your
tool or an authorized dealer near you.
●Use only Nitto genuine parts.
Use of improper parts may result in serious accident.
To obtain a Nitto genuine part, consult this Manual
or contact the sales agent from which you have
purchased your tool directly.
●Do not detach label or nameplate from tool.
When a label/nameplate gets damaged, worn or
becomes missing, contact the sales agent through
which you have purchased your tool or Nitto Kohki
Co. Ltd, directly for a replacement.
DISPOSAL
When a tool is taken permanently out of service, it is
advised that the tool is disassembled, degreased and
parts separated by material and recycled locally in the
appropriate manner.
GENERAL: PNEUMATIC
TOOLS
WARNING
●Use appropriate air pressure.
Excessively high air pressure will increase the tool
number of revolutions or strokes causing not only
potential premature failure/breakage but could also
lead to an unexpected accident or injury.
●Connect tool to air supply line.
There are various types of pipes running in a factory
in addition to the pneumatic line (such as oxygen,
nitrogen, gas and water). For this reason, always
ensure that you are connecting to the pneumatic
line.
●Start tool properly.
Turn the start switch OFF before connecting to the
air supply line.
●
Always disconnect the tool from the air supply
line before putting on/taking off any accessory
and prior to carrying out any maintenance work.
●Avoid exposure to exhaust air.
Pneumatic tool exhaust air contains oil and
contaminated moisture. Make sure the exhaust air is
not directed towards your face or anyone else within
the work area.
●Keep tool off electricity.
This pneumatic tool is not electrically insulated. To
avoid a potential electric shock do not use where
there is a possibility of coming into contact with live
electricity.
CAUTION
●Handle tool carefully.
Abusive use of tool could invite failure or accident.
Do not throw, drop or shock the tool.
●Handle connecting hose carefully.
Do not carry the tool by the air hose.
Do not pull the air hose to disconnect.

4
INSTRUCTIONS FOR
THIS TOOL
About Your Tool
The word “attachment” in the sentences below refers to
mounted wheels and rotary burrs.
WARNING
●Do not use an attachment with rated revolution
speed (the number of revolutions marked on the
package) less than the actual revolution speed
of the Die Grinder.
●Inspect an attachment for chips or cracks prior
to mounting.
Do not use an attachment that is chipped or cracked
or otherwise damaged. Do not use an attachment
that has been soaked in water or any other liquid.
●Make certain the diameter of the attachment
mandrel suits the chuck.
Fasten the attachment securely. Use a genuine
chuck sleeve.
●After mounting a new attachment, hold the Die
Grinder under a steel workbench or inside a
casting and run it for at least one minute.
Make certain no one is within over the rotating
surface. If the attachment is defective, improperly
mounted or the wrong size and speed, this is the
time it will usually fail.
●Air pressure at the Die Grinder inlet with the Die
Grinder running must not exceed 0.6 Mpa (6 kgf/
cm2, 85 psig, 6 bar)
●When starting a cold Mounted Wheel, apply
it to the work slowly until the Mounted Wheel
gradually warms up.
Make smooth contact with the work and avoid any
bumping action or excessive pressure
●After a Die Grinder repaired and is issued for
use, check the free speed with no attachment
mounted using a tachometer to make certain
its actual speed at 0.6 MPa (6 kgf/cm2) does not
exceed rated speed stamped or printed on the
name plate.
Die Grinders in use on the job must be similarly
checked at least once each shift, When checking,
the Adjust Valve of the tool shoud be set for
maximum speed position.
●Wear protective glasses and a dustproof mask
Operation generates chips and dust particles, etc.
which may cause eye and/or respiratory injury:
Always use PPE (Personal Protective Equipment)
for eye and respiratory protection.
●Do not put any inflammable liquid or use the
grinding/sanding tool in a potentially explosive
atmosphere as there is a possibility of sparks
when grinding which could cause a fire/
explosion.
●When you replace or adjust the cutting tool or
parts, be sure to detach the tool from the air
hose.
●Never touch the moving parts while in operation.
1. USAGE
L-25 Die Grinder is for grinding workpieces using a
mounted wheel.
L-35, AL-55 Die Grinder is for grinding workpieces
using a mounted wheel or a rotary burr.
2. CHECK THE CONTENTS OF THE PACKAGE
Check the contents and make sure that the tool does
not have any damage which may have occurred
during transportation. The contents should correspond
to the list as follows. In case of damage/missing
parts, please contact the sales agent from whom you
purchased the tool.
L-25B
Package Contents Qty Check
DIE GRINDER L-25B 1set
Single Ended Spanner 14 1
Mounted Wheel No.2 1
Mounted Wheel No.3 1
Chuck Pin 1
Bushing R1/4×NPT1/4 1
Instruction Manual 1
Declaration of Conformity 1
Caution for Use 1
L-35C
Package Contents Qty Check
DIE GRINDER L-35C 1set
Single Ended Spanner 14 1
Mounted Wheel 13×13×6×38 1
Bushing R1/4×NPT1/4 1
Instruction Manual 1
Declaration of Conformity 1
Caution for Use 1
AL-55
Package Contents Qty Check
DIE GRINDER AL-55 1set
Spanner 7×9 1
Mounted Wheel 5×13×3 1
Bushing R1/4×NPT1/4 1
Instruction Manual 1
Declaration of Conformity 1
Caution for Use 1

5
3. AIR SUPPLY
3-1. Air Pressure
Adjust air pressure with the air regulator to the
appropriate level for the pneumatic tool used.
Air pressure that is too low will stop the tool from
operating at full capacity.
Air pressure that is too high may cause damage to
the tool.
3-2. Air Line (Fig.1)
Use a 9.5 mm (3/8”) I.D. connecting hose between
the compressor and the tool.
Drained water, etc., if flown into the tool, could
cause tool failure. Install an air filter between the
compressor and the tool.
Air Regulator Oiler
Air Filter
Compressor
Lubrication
Tool 9.5mm (3/8”) I.D.
Hose
Cupla
Fig.1
3-3. Lubrication
Install an oiler between the compressor and the tool.
Use the machine oil ISO VG-10. Failure to lubricate
as required may result in damage to the tool. Use of
oil that is too thick will reduce the performance of the
tool.
4. ATTACHMENTS
WARNING
Do not use any attachment for which the operating
speed is lower than the actual free speed of the
grinder.
The attachment mandrel shall be inserted to the
full depth of the gripping jaws of the grinder chuck.
4-1. Selecting Attachments
The maximum speed of an attachment is determined
by the factors listed below. Use attachments which
have a strength exceeding the speed of this tool.
(1) Shape and size of the attachment
(2) Size of the mandrel
(3) Overhang of the mandrel
(4) Wheel specification
4-2. Mounted Wheel attachment
WARNING
Be sure to dress the grinding face of the Mounted
Wheel before using it.
Refer to the table below when selecting Mounted
Wheels. When an unmarked Mounted Wheel is to
be used, refer to the manufacturer of the wheel and
select one which is safe.
For 6.0 mm or 3.0 mm mandrels with 13 mm max
overhang
(mm)
L-25
D max=19 D max=16 D max=16
L max=25 L max=32
d=6.0 d=6.0 d=6.0
L-35
D max=16 D max=13 D max=10
L max=19 L max=19
d=6.0 d=6.0 d=6.0
AL-55
D max=6 D max=5 D =6
L max=10 L max=13
d=3.0 d=3.0 d=3.0
4-3. Rotary Burr attachment
●Squeeze the Rotary Burr lightly against the face to
be ground and feed the Rotary Burr in the right-to-
left direction.
●
Using a double-cut Rotary Burr is recomended.
●
Insert the Rotary Burr as deepest as possible and
fastened.
●For L-25, L-35
Use the blade section not more than 10 mm in
diameter.
●For AL-55
Use the blade section not more than 6.4 mm in
diameter and 13 mm or less in length and the shaft
30 mm or less in length.
5. MOUNTING AND REMOVING MOUNTED
WHEELS AND ROTARY BURRS
WARNING
Be sure to turn off the air supply and disconnect
the air hose.

6
5-1. For L-25 (Fig.2)
●Mounting
After inserting the Chuck Pin in the Lock Ring, insert
the mandrel of the Mounted Wheel in the Chuck and
secure it by turning the Chuck Nut with the Spanner
14 in a clockwise direction. The Chuck Pin serves to
prevent rotation at this time.
●Removal
Turn the Chuck Nut in a counterclockwise direction
with the Spanner 14 and withdraw the mandrel from
the chuck.
Fig. 2
5-2. For L-35 (Fig.3)
●Mounting
Hold the body of the chuck with a Spanner 14 and
insert the Rotary Burr mandrel. Secure the Rotary
Burr by turning the Chuck Nut with another Spanner
14 in a clockwise direction.
●Removal
Turn the Chuck Nut in a counterclockwise direction
with the Spanner 14 and withdraw the mandrel from
the chuck.
Fig. 3
5-3. For AL-55 (Fig.4)
●Mounting
Insert a Spanner 7×9 into the groove in the end of
Body and insert the mandrel into the chuck. Secure
the it by turning the Chuck Nut with Spanner 7×9 in
a clockwise direction.
●Removal
Turn the Chuck Nut in a counterclockwise direction
with the Spanner 7×9 and withdraw the mandrel
from the chuck.
Fig. 4
6. HOW TO OPERATE THE TOOL
WARNING
Always wear eye protection during operations.
Start the equipment. Then squeeze the equipment
lightly against the workpiece and move AIR SONIC in
the direction of the arrow, as shown in Fig. 5.
Strong push against the workpiece will not improve
working efficiency. Such strong push may cause
damage to the Mounted Wheel and the Rotary Burr.
Fig. 5
6-1. Start and Stop
●For L-25, L-35 (Fig.6)
To start: Release the Lock Lever and grasp the
Throttle Lever.
To stop: Release the Throttle Lever.
Fig. 6

7
●For AL-55 (Fig.7)
To start: Turn the Valve clockwise and match [ ▲] to
[
■
] on the Housing.
To stop: Turn the Valve counterclockwise and match
[▲] to [●] on the Housing.
Fig. 7
6-2. Adjust Valve (Fig.8)
WARNING
Be sure to keep hands clear of moving parts.
●For L-25, L-35
The desired speed between maximum and minimum
speed is obtainable by turning the groove of valve
in a clockwise or counterclockwise direction with
screwdriver.
●Maximum speed
Position the groove of Adjust Valve horizontal to
main body.
●Minimum speed
Position the groove of Adjust Valve vertical to main
body.
Fig. 8
●For AL-55
The motor speed can be adjusted in the range from
0 to the maximum speed by adjusting the opening of
the valve.
Adjust the motor speed according to the purpose of
use. (Fig. 7)
7. THREAD SIZE OF HOSE FITTING
The product comes with a metal fitting with R (metric)
thread. Connect the Bushing R thread x NPT thread
included as standard accessories, if you would like to
have American NPT thread instead.
8. STORAGE
CAUTION
When tool is not used, store it out of reach of
children.
Avoid storing the tool in a location subject to high
humidity. If the tool is left as it is used, residual
moisture on the inside can cause rusting. Before
storing, and after operation, oil the tool at the air inlet
with machine oil ISO VG-10 and run it for a short time.
9. ORDERING SERVICE PARTS
For further operational and handling information or
for replacement of parts and components, contact the
company from whom you purchased the tool or an
authorized dealer.
In ordering parts and components give each part
number, part name and quantity required.
Use only NITTO genuine parts.
10. OPTIONAL PARTS
L-25B
Part No. Description Qty
TA9A277 Mounted Wheel No.1 5 pcs
TA9A278 Mounted Wheel No.2 5 pcs
TA9A279 Mounted Wheel No.3 5 pcs
TA9A280 Mounted Wheel No.4 5 pcs
TA9A281 Mounted Wheel No.5 5 pcs
TA9A282 Mounted Wheel No.6 5 pcs
TA9A283 Mounted Wheel No.7 5 pcs
TA9A284 Mounted Wheel No.8 5 pcs
L-35C
Part No. Description Qty
TP10594 Rotary Bar No.1 1
TP10595 Rotary Bar No.2 1
TP10596 Rotary Bar No.3 1
TP10597 Rotary Bar No.4 1
TP10598 Rotary Bar No.5 1
TP10599 Rotary Bar No.6 1
TP10600 Rotary Bar No.7 1
TP10601 Rotary Bar No.8 1
AL-55
Part No. Description Qty
TB00137 Mounted Wheel 5×13×3 10 pcs

8
21
30
No. Part No. Description Qty Price
1 TB08737 Housing Sub Ass’y 1set
15 (TQ12788) Label Warning 1
2 TP06117 Waved Spring Washer
12×16×0.3 1
3 TP03933 Ball Bearing 606ZZ 1
4 TP06119 End Plate A 1
5 TP06121 Cylinder 1
6 TP06321 Rotor 1
7 TA9A287 Blade Ass’y (4 pcs.) 1set
8 TP06322 Spacer 8×11×3 1
9 TP00496 Spring Pin 2.5×6 AW 1
10 TP14931 End plate B 1
11 TP00468 Ball Bearing 608ZZ 1
12 TB08738 Lock Ring Ass’y 1set
28 (TP12437) Label Rotating Direction 1
29 (TQ12676) Label Warning CE Mark 1
13 TA96328 Chuck Ass’y 1set
14 (TP10742) Chuck Nut 1
16 TA93070 Throttle Valve Ass’y 1set
17 TP06325 Adjust Valve 1
18 TP11997 O Ring KS-7 1
No. Part No. Description Qty Price
19 TP06326 Spacer 6×12×1.2 1
20 TP03695 Retainig Ring C-12 1
21 TB07658 Air Hose C Ass’y 1set
30 (TQ11519) Label Lubrication 1
22 TQ01664 Exhaust Hose 1
23 TP09153 Stop Ring O-28.5×2 1
24 TB01152 Throttle Lever Ass’y 1set
25 (TP05498) Spring Pin 2×16 AW 1
26 (TP00460) Spring Pin 3×22 AW 1
27 TP12435 Spring Pin 2.5×10 AW 1
Accessories
No. Part No. Description Qty Price
TP00475 Single Ended Spanner 14 1
Mounted Wheel No.2 1
Mounted Wheel No.3 1
TP03840 Chuck Pin 1
TQ12790 Instruction Manual 1
TP02236 Bushing PT1/4×NPT1/4 1
TQ12791 Declaration of Conformity 1
11. EXPLODED DIAGRAM: L-25B PARTS LIST
WARNING
This diagram is for your reference only. Do not attempt to service or repair the Tool.
Do not take the Tool apart. Contact an authorized Nitto dealer for all service and repair of the Tool.
Improper service and repair can cause accidents and service injuries.
Never attempt to modify the Tool.
Never attempt service or repair the Tool yourself.
The part numbers with ( ) are included in the Ass'y parts written above them.

9
No. Part No. Description Qty Price
1 TB01632 Cap Ass’y 1set
31 (TP12437) Label Rotating Direction 1
2 TB02507 Chuck
Ф
6 Sub Ass’y 1set
3 (TP10742) Chuck Nut 1
4 FQ00263 Ball Bearing 6900ZZ 2
5 TQ03266 Collar A 1
6 TQ03267 Stop Ring 1
7 TA99920 Joint Ass’y 1set
8 TP06386 Ball Bearing 607ZZ 1
9 TP04936 End Plate B 1
10 TP11751 Rotor 1
11 TA9A286 Blade Ass’y (3 pcs.) 1set
12 TP04938 Cylinder 1
13 TP11752 End Plate A 1
14 TP11753 Needle Bearing 1
15 TB08739 Housing Ass’y 1set
30 (TQ12789) Label Warning CE Mark 1
16 TP07006 Spring Pin 2×8 AW 2
17 TP07951 O Ring S-28 1
18 TP11755 Valve Body 1
19 TB01152 Throttle Lever Ass’y 1set
No. Part No. Description Qty Price
29 (TP05498) Spring Pin 2×16 AW 1
20 (TP00460) Spring Pin 3×22 AW 1
21 TA93070 Throttle Valve Ass’y 1set
22 TA06325 Adjust Valve 1
23 TP11997 O Ring KS-7 1
24 TP06326 Spacer 6×12×1.2 1
25 TP03695 Retaining Ring C-12 1
26 TB07658 Air Hose C Ass’y 1set
33 (TQ11519) Label Lubrication 1
27 TP09153 Stop Ring O-28.5×2 1
28 TQ01664 Exhaust Hose 1
32 TP11748 Collar 1
Accessories
No. Part No. Description Qty Price
TP00475 Single Ended Spanner14 2
Mounted Wheel 13×13×6×38 1
TQ12790 Instraction Manual 1
TP02236 Bushing PT1/4×NPT1/4 1
TQ12791 Declaration of Conformity 1
12. EXPLODED DIAGRAM: L-35C PARTS LIST
WARNING
This diagram is for your reference only. Do not attempt to service or repair the Tool.
Do not take the Tool apart. Contact an authorized Nitto dealer for all service and repair of the Tool.
Improper service and repair can cause accidents and service injuries.
Never attempt to modify the Tool.
Never attempt service or repair the Tool yourself.
The part numbers with ( ) are included in the Ass'y parts written above them.
26
33

10
No. Part No. Description Qty Price
1 TQ04363 Front Cover 1
2 TB08736 Housing Ass’y 1set
3 (TQ04361) Label Model Number 1
4 (TQ12786) Label Specification 1
5 TB03308 Chuck Ass’y 1set
6 TQ04348 Front Ball Bearing 2
7 TQ04346 End Plate B 1
8 TQ04347 Spacer 1
9 TB03352 Blade Ass’y (3 pcs.) 1set
10 TQ04343 Rotor 1
11 TQ04344 Cylinder 1
12 TQ04345 End Plate A 1
13 TQ04365 Positioning Pin 1
14 TQ04349 Rear Ball Bearing 1
15 TQ04364 Intake Plate 1
16 TB03309 Hose Plug Ass’y 1set
17 TB08743 Valve Ass’y 1set
No. Part No. Description Qty Price
18 (TQ12784) Label Warning CE MARK 1
19 (TP12004) O Ring P-10 2
20 (TP11994) O Ring P-4 1
21 TQ04366 Rear End Holder 1
22 TQ04369 Hex. Socket Set Screw 4×3 1
23 TQ04367 Exhaust Hose 1
24 TB08131 Air Hose K Ass’y
25 (TQ11519) Label Lubrication
Accessories
No. Part No. Description Qty Price
Mounted wheel 5×13×3 1
TQ04371 Spanner 7×9 2
TQ12790 Instruction Manual 1
TP02236 Bushing R1/4×NPT1/4 1
TQ12791 Declaration of Conformity 1
13. EXPLODED DIAGRAM: AL-55 PARTS LIST
WARNING
This diagram is for your reference only. Do not attempt to service or repair the Tool.
Do not take the Tool apart. Contact an authorized Nitto dealer for all service and repair of the Tool.
Improper service and repair can cause accidents and service injuries.
Never attempt to modify the Tool.
Never attempt service or repair the Tool yourself.
The part numbers with ( ) are included in the Ass'y parts written above them.
24 25

عOverseas Affiliates / Offices
NITTO KOHKI U.S.A ., Inc.
4525 Turnberry Drive, Hanover Park, IL 60133, U.S.A
Tel: [phone] Fax:[phone]
http://www.nittokohki.com/index.html
NITTO KOHKI EUROPE Co., Ltd.
Unit 21, Empire Centre, Imperial Way,
Watford Hertfordshire, WD24 4TS, United Kingdom
Tel: [phone] Fax:[phone]
http://www.nitto.co.uk/
NITTO KOHKI DEUTSCHLAND GmbH
Lerchenstr. 47, D-71144 Steinenbronn, Germany
Tel: [phone] Fax:[phone]
http://www.nitto-kohki.de/
NITTO KOHKI AUSTRALIA Pty. Ltd.
77 Brandl Street, Eight Mile Plains QLD 4113,
Australia
Tel: [phone] Fax:[phone]
http://www.nitto-australia.com.au/
NITTO KOHKI Co., Ltd. Singapore Branch
10 Ubi Crescent #01-62, Ubi Techpark Lobby D,
Singapore 408564
Tel: [phone] Fax:[phone]
http://www.nitto-kohki.co.jp/e/nksb/
NITTO KOHKI Co., Ltd. Shanghai Representative Office
#1117 Ruijing Building, Maoming South Road,
Shanghai 200020 China
Tel: [phone] Fax:[phone]
http://www.nitto-kohki.cn/
NITTO KOHKI Co., Ltd. Shenzhen Representative Office
#0726 International Culture Building, 3039, Shennan
Zhong Rd., FutianDistrict, Shenzhen, 518003 China
Tel: [phone] Fax:[phone]
http://www.nitto-kohki.cn/
NITTO KOHKI Co., Ltd. Bangkok Representative Office
38Q, House Convent Bldg, 7th Floor, Unit 7A,
Convent Rd, Silom, Bangkok,10500 Thailand
Tel: (66)- 2 -632-0307 Fax:[phone]
http://www.nittobkk.com/eng_index.htm
EC DECLARATION OF CONFORMITY
We hereby declare that the following our product conforms with the essential health and safety requirements of
EC Directives.
Product䋺PNEUMATIC DIE GRINDER
Model䋺AIR SONIC : L-25B, L-35C, AL-55
Serial No䋺X
X X X X X
Consecutive numbers (00001䌾99999)
Christian era’s last digit (0䌾9)
Manufacturer䋺NITTO KOHKI Co., Ltd.
2-9-4, Nakaikegami, Ohta-ku, Tokyo, 146-8555, Japan
Authorised Compiler in the Community䋺
Masatoshi Ogue
President
NITTO KOHKI EUROPE Co., Ltd.
Unit21, Empire Centre, Imperial Way, Watford Hertfordshire, WD24 4TS, UK
Tel:[phone] Fax:[phone]
Directive䋺98/37/EC and 2006/42/EC Machinery Directive
The above product has been evaluated for conformity with above directives using the following European standards.
The technical construction file (TCF) for this product is retained at the above manufacturer’s location.
Machinery Directive䋺EN ISO12100-1:2003, EN ISO12100-2:2003,
EN ISO14121-1:2007, EN792-9:2001+A1:2008, others
Sound Pressure/Power Level䋺EN ISO15744:2008, EN ISO4871:1996
Vibration Level䋺EN28662-1:1992, EN ISO8662-13:1997
Name䋺K.Kishi
Title: GENERAL MANAGER MACHINE TOOLS DIV.
Being the responsible person appointed and employed the manufacturer.
Printed in KOREA TQ12790-0