Nitto Kohki MAH-05 User manual

AIR LAPPING TOOL
Please read this manual carefully before you attempt to use
your tool so that you may use it properly and safely.
MICRO AIR HAND
Model MAH-05, MAH-16
PROFESSIONAL TOOL
Specifications
Model MAH-05 MAH-16
Maximum Operating Pressure 0.6 MPa
Air Consumption (No Load) 0.07 m3/min
Stroke Speed (No Load) 22,000 min-1 11,000 min-1
Stroke Length 0.5 mm 2.2 mm
Shank O.D. 3 mm
Mass (Weight)
(Include Inlet and Exhaust Hose)
0.4 kg
Sound Pressure Level 75 dB (A) 80 dB (A)
Sound Power Level 86 dB (A) 91 dB (A)
Vibration Level 1.0 m/s21.8 m/s2
Thread Size of Air Inlet Rc 1/4
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
Keep the manual handy – so you can use it whenever necessary.
Original Instructions

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 machine or tool setup, operation and maintenance.
Thank you very much for your purchase of this
Nitto Kohki product.
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. APPLICATION ……………………………………………4
2. RECEIVING INSPECTION ………………………………4
3. AIR SUPPLY ………………………………………………4
4. OPERATION ………………………………………………5
5. OPTIONAL PARTS ………………………………………5
6. OREDERING PARTS ……………………………………5
7. EXPLODED DIAGRAM: MAH-05, MAH -16 …………6
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 take the basic safety
precautions as described below to prevent possible
injury.
GENERAL: TOOLS
Warning
To Operators
●Wear proper clothing for the type of work being
done.
No loose clothing nor adornments when at work: you
will be pulled into the tool if you’re unlucky. Wear
nonskid footwear. If you have long hair, wear a
safety hat that can cover up your hair completely.
●Always wear safety glasses.
Remember, regular glasses are no safety glasses.
The lenses are only shock resistant, which will not
give you sufficient eye protection you may need in
your working environment.
●Wear respiratory protective equipment (PPE).
Wear respiratory protective equipment (PPE) when
working in an environment where dust particles are
generated in operation.
●Avoid working posture that is too stressful.
Secure good footing, work in a well-balanced
posture.
●Do not operate the machine if you are too tired.
●Never touch any moving member on the tip of
machine 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 off the work area.
Keep children and unauthorized persons off the
work area.
Before Operation
●Inspect tool before use.
Before using, check that screws are securely
tightened, that a protective cover and other parts
are free from damage, and that the tool runs as it
should.
Check that moving members 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 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 File
Improperly mounted File may fly out, causing
possible damage to the machine or injury to the
operator, etc.
●Always remove spanner, wrench, etc., once
adjustment is made with them.
●Use a tool appropriate for the application.
Avoid heavy-duty application that is beyond the
capacity of tool.
Do not use tool for other purposes than is geared to.
●Do not abuse tool.
Use tool in accordance with the specifications: you’ll
get the most out of it while ensuring safely.
●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.
Disassembling or modification carried out without
the supervision by a qualified or authorized service
engineer might cause accident.
●Inspect cutting tool and accessories, etc.
Always check to see that Lapping tool and
accessories, etc. are in good operating condition
without damage or deterioration -- before you
mount them on the power 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 power tool – that is, determine whether it can
still perform its normal functions. Check to see that
the linkage of the moving members is OK, that all
parts are OK without damage, that they are properly
mounted, and that the power 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 Nitto service station
For repair or parts replacement please contact sales
agent through which you have purchased your tool
or an authorized dealer near you.
●Use Nitto genuine parts.
Use of improper parts may result in serious
occurrence.
To obtain a Nitto genuine part, consult this Manual or
contact sales agent from which you have purchased
your tool directly.
●Do not detach label or nameplate from tool.
When a label or nameplate gets scratched or peeled
off, contact sales agent through which you have
purchased your tool or Nitto Koki Co., Ltd. directly
for a replacement.
GENERAL: PNEUMATIC
TOOLS
Warning
●Use appropriate air pressure.
Excessively high air pressure will increase the
number of revolutions or strokes, causing not only
premature failure or breakage but also unexpected
accident.
●Connect only pneumatic air supply lines.
Never attempt to connect the Air Lapping Tool to
any supply line other than a pneumatic air supply
line. There are other kinds of supply lines and pipes,
such as oxygen supply lines, nitrogen supply lines or
gas pipes.
Never attempt to connect the Air Lapping Tool to any
of these other types of supply lines.
Attempting to connect the Air Lapping Tool to any
supply line other than a pneumatic air supply line
can result in accidents and/or severe injury.
●Start tool properly.
Turn the start switch OFF before connecting the tool
to the hose leading to air supply line.
●Always disconnect the tool from the connecting
hose leading to air supply line before putting on
or taking off accessories or before getting down
to maintenance work.
●Avoid exposure to exhaust air.
Exhaust air contains from pneumatic tool contains oil
and contaminated moisture. Make sure that exhaust
air will not be directed to your face or anyone else
who may be around.
●Keep tool off electricity.
The pneumatic tool is not insulated against
electricity. You may get electric shock if your
pneumatic tool comes into contact with running
electricity: keep it off electricity.
Caution
●Handle tool carefully.
Abusive use of tool would invite failure or accident.
Do not throw or drop; don’t give tool a shock.
●Handle connecting hose carefully.
Don’t hold the tool by the connecting hose when
carrying it; don’t pull the connecting hose to
disconnect.

4
INSTRUCTIONS FOR
THIS TOOL
Warning
●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.
Caution
●Insert tip tool shaft of tip tool into the holder as
deep as possible before using the tool.
Imperfect imsertion of the file shaft of tip tool not
only damages the main body but also causes tip tool
to jump out and may cause accidents.
●Do not use tip tool with tip tool shaft other than
3 mm.
The use of tip tool with a file shaft other than 3 mm
may damage the main body, cause tip tool to jump
out, and result in accidents.
●When you replace or adjust tip tool or any
component, be sure to detach the tool from the
air hose.
●Never touch tip mobile portion while in
operation.
1. APPLICATION
This tool is a pneumatic lapping tool to carry out
grinding operations using an Electro-Plated Diamond
File, and grinding and polishing operations using Oil
Stone and Fiber Grindstone, etc.
2. RECEIVING INSPECTION
Upon unpacking, check to see that the shipment is
complete without damage or oil leakage in transport.
Should you find any damage or short-shipment,
please contact sales agent through which you have
purchased your machine or an authorized dealer near
you for corrective actions.
MAH-05
Package Contents Q’ty
MICRO AIR HAND MAH-05 1set
Flat Electro-Plated File #140 1
Rat-Tail Electro-Plated File #140 1
Hex. Socket Screw Key 2 1
Bushing R1/4xNPT1/4 1
Instruction Manual 1
Attention for Start-up MAH-05/MAH-16 1
Caution for Use 1
Declaration of Conformity 1
MAH-16
Package Contents Q’ty
MICRO AIR HAND MAH-16 1set
Flat Electro-Plated File #140 1
Rat-Tail Electro-Plated File #140 1
Hex. Socket Screw Key 2 1
Bushing R1/4xNPT1/4 1
Instruction Manual 1
Attention for Start-up MAH-05/MAH-16 1
Caution for Use 1
Declaration of Conformity 1
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.
 



 !"$%
&

Fig. 1

5
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. OPERATION
4-1. How to replace tip tool (Fig. 2)
Warning
●Turn off the Valve and disconnect the air hose
before replacing tip tool.
Insert the file shaft into the holder and tighten a
Hexagon Socket Head Locking Screw with a Hex.
Wrench Key 2 attached. To remove tip tool shaft,
loosen the Hexagon Socket Head Locking Screw
with the Hex. Wrench Key 2 and remove tip tool.
Loosen
SleeveΦ3
Tiptool
Tighten
Hex.SocketScrewKey2
Fig. 2
4-2. Start and Stop
Make sure the Valve is turned off before inserting
the air hose into the Cupla of the this tool.
Start: Sliding the Valve to the Housing side starts the
tool. (Valve ON)
Stop: Sliding the Valve from the housing side to the
Exhaust Hose side stops the tool. (Valve OFF)
ON-OFFDisplay
Valve
ON
OFF
Fig. 3
4-3. Grinding and polishing operations
Warning
●Be sure to wear protective glasses and a
dustproof mask during operation.
Start the tool, lightly press the File against the work,
and carry out the operation. Applying unnecessarily
strong force to the File does not improve the work
efficiency.
In addition, unnecessary force applied to tip tool
may cause breakage of the electro-plated tip tools.
4-4. Storing Tool
Warning
●When tool is not used, store it out of reach of
children.
When the tool is not used, store it in a dry area.
If the tool is left alone as it has been used without
preparation for storage, ambient moisture will remain
inside the tool, which will leave it susceptible to
rusting. After finishing your work, add the machine
oil #10 through the Air Hose and run the tool for a
while before storage.
5. OPTIONAL PARTS
In addition to standard accessory parts, the following
parts are available for your applications and needs.
Part No. Part name Q’ty
TB07502 Flat Electro-Plated File #140 1set (5 pcs.)
TB07503 Rat-Tail Electro-Plated File #140 1set (5 pcs.)
TB07504 Triangular Electro-Plated File #140 1set (5 pcs.)
TB07505 Half-Round Electro-Plated File #140 1set (5 pcs.)
TB07506 Vise Holder 3 1set
6. ORDERING PARTS
When ordering parts from our agency, please be
sure to give them part number, part name and
quantities.

6
7. EXPLODED DIAGRAM: MAH-05 and MAH-16 PARTS LIST
Warning
This diagram is for refrence 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 severe injuries.
Never attempt to modify the Tool.
Never attempt to service or repair the Tool yourself.
No. Part No. Part Name Q'ty Price
1 TQ11133 Sleeve
φ
31
2 TP04123 Hex. Socket Set Screw with
Cup Point 4×4 1
3 TQ11121 Guide Shaft 1
4 TB07444 Guide Holder Sub Ass’y
MAH-05 1set
◎4 TB07512 Guide Holder Sub Ass’y
MAH-16 1set
5 TQ11134 Slide Bearing 1
6 TQ11129 Spring Set Collar F 1
7 TQ11130 Spring 1×8×26 1
8 TQ11122 Piston 1
9 TP00639 Hex. Socket Set Screwwith
Flat Point 4×3 1
10 TB08818 Housing Ass’y MAH-05 1set
11 (TQ12931) Label Warning MAH-05 1
◎10 TB08819 Housing Ass’y MAH-16 1set
◎11 (TQ13211) Label Warning MAH-16 1
12 TB07450 Cylinder Ass’y MAH-05 1set
30 TQ11120 Bushing T3.3 MAH-05 1
◎12 TB07480 Cylinder Ass’y MAH-16 1set
◎30 TQ12601 Bushing MAH-16 1
13 TB07500 Counter Weight Sub Ass’y 1set
14 TQ11131 Spring 1×11.3×27 1
15 TQ11132 Spring Set Collar R 1
16 TB07454 Valve Body Ass’y 1set
The parts numbers with ( ) are included in the Ass'y parts written above them.
Numbers attached with ◎are components of MAH-16.
No. Part No. Part Name Q'ty Price
17 TB08817 Valve Sub Ass’y 1set
18 (CP25836) O-ring JASO-1016 3
19 (TQ12930) Label Warning 1
20 TQ11158 Hex. Socket Set Screw with
Cup Point 3×6 1
21 TP17226 External Retaining Ring
ISTW-14 1
22 TQ11126 Hose Holder 1
23 TQ11127 Silencer Boushing 1
24 TQ11128 Silencer 1
25 CP28152 O-ring JASO-1012 1
26 TQ04367 Exhaust Hose 1
27 TB08131 Air Hose K Ass’y 1set
28 (TQ11519) Label Lubrication 1
Accessories
No. Part No. Part Name Q'ty Price
TP13892 Hex. Socket Screw Key 2 1
29 Flat Electro-Plated File #140 1
Rat-Tail Electro-Plated File
#140 1
TQ13212 Instruction Manual 1
TQ10966 Caution for Use 1
TP02236 Bushing R1/4×NPT1/4 1
TQ12934 Declaration of Conformity 1
TQ11487 Attention for Start-up
MAH-05/MAH-16 1
Guide holder sub-Ass’y [MAH-16] has two grooves on its exterior. Component numbers in parentheses indicate a component of
the above Ass’y.
1
3
4
2
29 5
12
30
18
19
17
20
13
14
15
16
6
7
8
10
11
9
22
23
24
26
28
27
21
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
EEC Directives.
Product䋺
Model䋺
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.
Masatoshi Ogue
President
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.
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 ISO8662-12:1997
Name䋺K.Kishi
Title: GENERAL MANAGER MACHINE TOOLS DIV.
Being the responsible person appointed and employed the manufacturer.
PAIR P OAINGLTO L
MCI RHAND:-0
O
NITTO KOHKI EUROPE Co., Ltd.
AIR M HA- MHA
2-9-4, Nakaikegami, Ohta-ku, Tokyo, 146-8555, Japan
516
The technical construction file (TCF) for this product is retained at the above manufacturer’s location.
the
Authorised Compiler n Community䋺
i
’
Printed in JAPAN TQ13212-0