Makita AN250HC User manual

1
INSTRUCTION MANUAL
MANUEL D'INSTRUCTION
MANUAL DE INSTRUCCIONES
IMPORTANT: Read Before Using.
IMPORTANT: Lire avant usage.
IMPORTANTE: Leer antes de usar.
Pneumatic Concrete Nailer
Cloueur pneumatique à Béton
Clavadora Neumática para Concreto
AN250HC
010301

2
ENGLISH (Original instructions)
SPECIFICATIONS
Model AN250HC
Air pressure 170 - 320 PSIG (1.18 - 2.26 MPa)
Nail length 19 mm (3/4") - 25 mm (1")
Sheet-collated coil pin
Nail capacity 100 pcs.
Min. hose diameter 5 mm ( 3/16")
Dimensions (L X W X H) 295 mm (11-5/8") X 128 mm (5") X 291 mm (11-1/2")
Net weight 2.1 kg (4.7 lbs)
• Due to our continuing program of research and development, the specifications herein are subject to change without notice.
• Specifications may differ from country to country.
• Weight according to EPTA-Procedure 01/2003
USB097-1
IMPORTANT SAFETY
INSTRUCTIONS
WARNING: WHEN USING THIS TOOL, BASIC
SAFETY PRECAUTIONS SHOULD ALWAYS BE
FOLLOWED TO REDUCE THE RISK OF PERSONAL
INJURY, INCLUDING THE FOLLOWING:
READ ALL INSTRUCTIONS.
1. For personal safety and proper operation and
maintenance of the tool, read this instruction
manual carefully before using the tool.
2. Always wear safety glasses to protect your
eyes from dust or pin injury. The safety
glasses should conform with the
requirements of ANSI Z87.1.
WARNING:
It is an employer's responsibility to enforce
the use of safety eye protection equipment by
the tool operators and by other persons in the
immediate working area.
3. Wear hearing protection to protect your ears
against exhaust noise and head protection.
Also wear light but not loose clothing.
Sleeves should be buttoned or rolled up. No
necktie should be worn.
4. Rushing the job or forcing the tool is
dangerous. Handle the tool carefully. Do not
operate when under the influence of alcohol,
drugs or the like.
5. General Tool Handling Guidelines:
(1) Always assume that the tool contains
fasteners.
(2) Do not point the tool toward yourself or
anyone whether it contains fasteners or
not.
(3) Do not actuate the tool unless the tool is
placed firmly against the workpiece.
(4) Respect the tool as a working implement.
(5) No horseplay.
(6) Do not hold or carry the tool with a finger
on the trigger.
(7) Do not load the tool with fasteners when
any one of the operating controls is
activated.
(8) Do not operate the tool with any power
source other than that specified in the
tool operating/safety instructions.
6. An improperly functioning tool must not be
used.
7. Sparks sometimes fly when the tool is used.
Do not use the tool near volatile, flammable
materials such as gasoline, thinner, paint, gas,
adhesives, etc.; they will ignite and explode,
causing serious injury.
8. The area should be sufficiently illuminated to
assure safe operations. The area should be
clear and litter-free. Be especially careful to
maintain good footing and balance.
9. Only those involved in the work should be in
the vicinity. Children especially must be kept
away at all times.
10. There may be local regulations concerning
noise which must be complied with by
keeping noise levels within prescribed limits.
In certain cases, shutters should be used to
contain noise.

3
11. Do not play with the contact element: it
prevents accidental discharge, so it must be
kept on and not removed. Securing the trigger
in the ON position is also very dangerous.
Never attempt to fasten the trigger. Do not
operate a tool if any portion of the tool
operating controls is inoperable,
disconnected, altered, or not working properly.
12. Operate the tool within the specified air
pressure on the tool label for safety and
longer tool life. Do not exceed the
recommended max. operating pressure. The
tool should not be connected to a source
whose pressure potentially exceeds 480 PSIG
(3.39 MPa).
13. Never use the tool with other than
compressed air. If bottled gas (carbon dioxide,
oxygen, nitrogen, hydrogen, air, etc.) or
combustible gas (hydrogen, propane,
acetylene, etc.) is used as a power source for
this tool, the tool will explode and cause
serious injury.
14. Always check the tool for its overall condition
and loose screws before operation. Tighten as
required.
15. Make sure all safety systems are in working
order before operation. The tool must not
operate if only the trigger is pulled or if only
the contact element is pressed against the
wood. It must work only when both actions
are performed. Test for possible faulty
operation with pins unloaded and the contact
element in fully pulled position.
16. Make sure that the trigger is locked when the
change lever is set to the LOCK position.
17. Check walls, ceilings, floors, roofing and the
like carefully to avoid possible electrical
shock, gas leakage, explosions, etc. caused
by striking live wires, conduits or gas pipes.
18. Use only pins specified in this manual. The
use of any other pins may cause malfunction
of the tool.
19. Do not permit those uninstructed to use the
tool.
20. Make sure no one is nearby before driving
pins. Never attempt to drive pins from both
the inside and outside at the same time. Pins
may rip through and/or fly off, presenting a
grave danger.
21. Watch your footing and maintain your balance
with the tool. Make sure there is no one below
when working in high locations, and secure
the air hose to prevent danger if there is
sudden jerking or catching.
22. On rooftops and other high locations, drive
pins as you move forward. It is easy to lose
your footing if you drive pins while inching
backward. When driving pins against
perpendicular surface, drive pins from the top
to the bottom. You can perform pin driving
operations with less fatigue by doing so.
23. A pin will be bent or the tool can become
jammed if you mistakenly drive pins on top of
another pin or strike a knot in the wood. The
pin may be thrown and hit someone, or the
tool itself can react dangerously. Place the
pins with care.
24. Do not leave the loaded tool or the air
compressor under pressure for a long time
out in the sun. Be sure that dust, sand, chips
and foreign matter will not enter the tool in the
place where you leave it setting.
25. Do not point the ejection port at anyone in the
vicinity. Keep hands and feet away from the
ejection port area.
26. When the air hose is connected, do not carry
the tool with your finger on the trigger or hand
it to someone in this condition. Accidental
firing can be extremely dangerous.
27. Handle the tool carefully, as there is high
pressure inside the tool that can be
dangerous if a crack is caused by rough
handling (dropping or striking). Do not
attempt to carve or engrave on the tool.
28. Stop pin driving operations immediately if you
notice something wrong or out of the ordinary
with the tool.
29. Always disconnect the air hose and remove
all of the pins:
(9) When unattended.
(10) Before performing any maintenance or
repair.
(11) Before cleaning a jam.
(12) Before moving the tool to a new location.
30. Perform cleaning and maintenance right after
finishing the job. Keep the tool in tip-top
condition. Lubricate moving parts to prevent
rusting and minimize friction-related wear.
Wipe off all dust from the parts.
31. When not operating the tool, always lock the
trigger by turning the change lever to the
LOCK position.
32. Do not modify tool without authorization from
Makita.
33. Do not attempt to keep the trigger or contact
element depressed with tape or wire. Death or
serious injury may occur.

4
34. Always check contact element as instructed
in this manual. Pins may be driven
accidentally if the safety mechanism is not
working correctly.
35. Ask Makita's Authorized service centers for
periodical inspection of the tool.
36. To maintain product SAFETY and
RELIABILITY, maintenance and repairs should
be performed by Makita Authorized or Factory
Service Centers, always using Makita
replacement parts.
SAVE THESE INSTRUCTIONS.
WARNING:
MISUSE or failure to follow the safety rules stated in
this instruction manual may cause serious personal
injury.
USD501-1
Symbols
The followings show the symbols used for tool.
･Read and understand tool labels and
manual.
･Operators and others in work area
must wear safety glasses with side
shields.
･Keep fingers away from trigger when
not driving fasteners to avoid accidental
firing.
INSTALLATION
Selecting compressor
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
Nailing frequency (times/min)
Compressor air output perminute
(cfm ft /min)
3
6.0
5.0
5.5
0 5 10 15 20 25 30
320 PSIG (2.26 MPa)
250 PSIG (1.76 MPa)
170 PSIG (1.18 MPa)
010442
The air compressor must comply with the requirements
of ANSI B19.3.
Select a compressor that has ample pressure and air
output to assure cost-efficient operation. The graph
shows the relation between pin-driving frequency,
applicable pressure and compressor air output.
Thus, for example, if pin driving takes place at a rate of
approximately 15 times per minute at a compression of
250 PSIG (1.76 Mpa), a compressor with an air output
over 2.5 ft3/minute is required.
Pressure regulators must be used to limit air pressure to
the rated pressure of the tool where air supply pressure
exceeds the tool's rated pressure. Failure to do so may
result in serious injury to tool operator or persons in the
vicinity.
Selecting air hose
004294
Use a high pressure resistant air hose.
Use an air hose as large and as short as possible to
assure continuous, efficient pin-driving operation.
CAUTION:
• Low air output of the compressor, or a long or
smaller diameter air hose in relation to the pin-
driving frequency may cause a decrease in the
driving capability of the tool.
Lubrication
010316
Before and after use, oil the tool with pneumatic tool oil
by placing two or three drops into the air fitting. For
proper lubrication, the tool must be fired a couple of
times after pneumatic tool oil is introduced.

5
FUNCTIONAL DESCRIPTION
CAUTION:
• Always disconnect the air hose before adjusting or
checking function on the tool.
Adjusting the pin-driving depth
CAUTION:
• Always disconnect the hose before adjusting the
pin-driving depth.
1
010308
123
010309
If pins are driven too deep, turn the adjuster clockwise.
If pins are driven too shallow, turn the adjuster
counterclockwise.
The adjustable range is 10 mm (3/8"). (One full turn
allows 0.8 mm (1/32") adjustment.)
Hook
CAUTION:
• Always disconnect the hose when hanging the tool
using the hook.
• Never hang the tool on a waist belt or like.
Dangerous accidental firing may result.
1
2
010310
The hook is convenient for hanging the tool temporarily.
This hook can be installed on either side of the tool.
When changing the installation position, remove the
screw with a screwdriver. Install the hook on another
side for installation and then secure it with the screw.
Use the nose adapter
CAUTION:
• Always disconnect the hose before installing or
removing the nose adapter.
1
2
010311
Always use the nose adapter. Otherwise a slippage may
occur or even the nailer may not fire the nail.
Usually use one of two nose adapter A (transparent) ,
one factory-installed on the contact element and the
other stored below the grip.
When working on narrow partition tracks, use nose one
of two nose adapter B (black) which are provided with in
the tool carton box.
To attach the nose adapter to the contact element,
press it onto the contact element as far as it will go.
Locking the trigger
This nailer is provided with the mechanism for locking
trigger to avoid personal injuries and property damage
caused by improper operation during other than pin-
driving operation.
1
010306
Set the change lever to the LOCK position to lock the
trigger.
1. LOCK position
1. Contact element
2. Nose adapter
1. Screw
2. Hook
1. Too deep
2. Flush
3. Too shallow
1. Adjuster

6
1
010307
Before driving pins, set the change lever to the FREE
position. When NOT driving pins, be sure to set the
change lever to the LOCK position and disconnect the
air hose
ASSEMBLY
CAUTION:
• Always disconnect the air hose before loading the
nailer.
Loading the nailer
1
010304
Disconnect the air hose from the tool. Select pins
suitable for your work. Depress the latch lever and open
the door and magazine cap.
12
010305
Place the pin coil in the magazine. Uncoil enough pins
to reach the pin guide. Place the first pin in the feeder
and the second pin in the feed claw. Place other
uncoiled pins on feeder body. Close the magazine cap
slowly until it lock after checking to see that the pin coil
is set properly in the magazine.
Connecting air hose
Slip the air socket of the air hose onto the air fitting on
the nailer. Be sure that the air socket locks firmly into
position when installed onto the air fitting.
OPERATION
CAUTION:
• Be sure to set the change lever to the LOCK
position to avoid unexpected misfiring when the
tool is not in use.
• Make sure all safety systems are in working order
before operation.
010302
Only pulling trigger without contact element contacting
workpiece must not bring about the tool firing.
010303
Only contact element contacting workpiece without
pulling trigger must not bring about the tool firing.
1
23
010318
This nailer is only for intermittent pin-driving. Intermittent
pin-driving is a method of pinning piece by piece with
the following step.
1. Set the change lever to the FREE position.
2. Place the contact element against the workpiece
3. And then pull the trigger.
1. Trigger
2. Contact arm
3. Workpiece
1. Door
2. Driver channel
1. Latch lever
1. FREE position

7
Pin-driving of concrete
WARNING:
• Use hardened pins only for concrete.
Using other purposed pins may cause serious
injuries. Do not pin directly on the concrete.
Failure to do so may cause concrete fragments to
fly off or pins to strike back, causing serious
injuries.
• When driving pins, hold the tool so that it stands
upright to the driving surface.
Slanted pin-driving may cause concrete fragments
to fly off or pins to strike back, causing serious
injuries.
• Do not use on the surface that objects hang from,
such as area where hangers for sewer pipe, dust
pipe etc. are set up
Choose and use pins so that the penetration amount
into concrete ranges 15 mm (9/16") - 20 mm (13/16").
1
2
010319
CAUTION:
• Use this tool only for soft concrete built up not so
long before. Using on the hard concrete may cause
pin bending or pin-driving to insufficient depth.
• When the penetration amount into concrete is
required more than 20 mm (13/16"), driving pins to
the sufficient length may not be obtained. Pins may
be driven too shallow causing unstable workpiece,
resulting in personal injury and damage to property.
Cutting off the sheet
CAUTION:
• Always disconnect the hose before cutting off the
sheet.
010312
Tear off the output sheet in the direction of the arrow
when using the sheet collated pins.
MAINTENANCE
CAUTION:
• Always disconnect the air hose from the tool
before attempting to perform inspection or
maintenance.
• Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
result.
Jammed nailer
CAUTION:
• Always disconnect the air hose and remove the
pins from the magazine before cleaning a jam.
010313
010314
When the nailer becomes jammed, do as follows:
Open the magazine cap and remove the pin coil. Insert a
small rod or the like into the ejection port and tap it with a
hammer to drive out the pin jamming from the ejection
port. Reset the pin coil and close the magazine cap.
Drain tool
010315
Remove the hose from the tool. Place the tool so that
the air fitting faces down to the floor. Drain as much as
possible.
1. Thin steel plate
2. Penetration
amount into
concrete

8
Cleaning of tool
Blow off dust adherent to the tool by using an air duster.
Cap
1
010317
When not in use, disconnect the hose. Then cap the air
fitting with the cap.
Storage
When not in use, the nailer should be stored in a warm
and dry place.
Maintenance of compressor and air hose
1
004317
After operation, always drain the compressor tank. If
moisture is allowed to enter the tool, It may result in
poor performance and possible tool failure.
Keep the air hose away from heat (over 60°C, over
140°F), away from chemicals (thinner, strong acids or
alkalis). Also, route the hose away from obstacles which
it may become dangerously caught on during operation.
Hoses must also be directed away from sharp edges
and areas which may lead to damage or abrasion to the
hose.
Stove
Thinner
004320
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
OPTIONAL ACCESSORIES
CAUTION:
• These accessories or attachments are
recommended for use with your Makita tool
specified in this manual. The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or
attachment for its stated purpose.
If you need any assistance for more details regarding
these accessories, ask your local Makita Service Center.
• Pins
• Air hoses
• Safety goggles
NOTE:
• Some items in the list may be included in the tool
package as standard accessories. They may differ
from country to country.
1. Drain cock
1. Cap

9
MAKITA LIMITED ONE YEAR WARRANTY
Warranty Policy
Every Makita tool is thoroughly inspected and tested
before leaving the factory. It is warranted to be free of
defects from workmanship and materials for the period
of ONE YEAR from the date of original purchase.
Should any trouble develop during this one year period,
return the COMPLETE tool, freight prepaid, to one of
Makita’s Factory or Authorized Service Centers. If
inspection shows the trouble is caused by defective
workmanship or material, Makita will repair (or at our
option, replace) without charge.
This Warranty does not apply where:
IN NO EVENT SHALL MAKITA BE LIABLE FOR ANY
INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES FROM THE SALE OR USE OF THE
PRODUCT. THIS DISCLAIMER APPLIES BOTH
DURING AND AFTER THE TERM OF THIS
WARRANTY.
MAKITA DISCLAIMS LIABILITY FOR ANY IMPLIED
WARRANTIES, INCLUDING IMPLIED WARRANTIES
OF "MERCHANTABILITY" AND "FITNESS FOR A
SPECIFIC PURPOSE," AFTER THE ONE YEAR TERM
OF THIS WARRANTY.
This Warranty gives you specific legal rights, and you
may also have other rights which vary from state to
state. Some states do not allow the exclusion or
limitation of incidental or consequential damages, so
the above limitation or exclusion may not apply to you.
Some states do not allow limitation on how long an
implied warranty lasts, so the above limitation may not
apply to you.
repairs have been made or attempted by others:
repairs are required because of normal wear and
tear:
the tool has been abused, misused or improperly
maintained:
alterations have been made to the tool.
EN0006-1

10
FRANÇAIS (Mode d’emploi original)
SPÉCIFICATIONS
Modèle AN250HC
Pression d'air 170 - 320 PSI (1,18 - 2,26 MPa)
Longueur de clou 19 mm (3/4") à 25 mm (1")
Petits clous en rouleau sur feuille
Capacité de clouage 100 agrafes.
Diamètre min. du tuyau 5 mm ( 3/16")
Dimensions (L x P x H) 295 mm (11-5/8") X 128 mm (5") X 291 mm (11-1/2")
Poids net 2,1 kg (4,7 lbs)
• Étant donné l'évolution constante de notre programme de recherche et de développement, les spécifications contenues dans ce
manuel sont sujettes à modification sans préavis.
• Les spécifications peuvent varier suivant les pays.
• Poids conforme à la procédure EPTA du 01/2003
USB097-1
CONSIGNES DE SÉCURITÉ
IMPORTANTES
AVERTISSEMENT : PAR MESURE DE SÉCURITÉ, DES
PRÉCAUTIONS DE BASE DOIVENT ÊTRE PRISES
LORS DE L'UTILISATION DE CET OUTIL, AFIN DE
RÉDUIRE LES RISQUES DE BLESSURE. CES
PRÉCAUTIONS COMPRENNENT LES SUIVANTES :
LISEZ TOUTES LES
INSTRUCTIONS.
1. Par mesure de sécurité personnelle et pour
assurer une utilisation et un entretien
adéquats, veuillez lire ce manuel
d'instructions avant d'utiliser l'outil.
2. Portez toujours des lunettes de sécurité pour
protéger vos yeux contre toute blessure au
contact de la poussière ou d'un petit clou. Les
lunettes de sécurité doivent répondre aux
exigences de la norme ANSI Z87.1.
AVERTISSEMENT :
L'employeur a la responsabilité d'imposer le
port d'un dispositif de protection des yeux
aux utilisateurs des outils et à toute personne
présente dans la zone de travail.
3. Portez une protection d'oreilles pour les
protéger contre le bruit, et portez un casque
de sécurité. Les vêtements portés doivent être
légers et ne doivent pas être amples. Veuillez
boutonner ou rouler vos manches. Ne portez
pas de cravate.
4. Il est dangereux de travailler trop vite ou
d'appliquer une charge de travail excessive à
l'outil. Manipulez l'outil avec soin. N'utilisez
pas l'outil si vous avez consommé de l'alcool,
une drogue ou des médicaments, etc.
5. Conseils généraux pour l'utilisation des
outils :
(1) Gardez toujours à l'esprit que l'outil
contient des clous.
(2) L'outil ne doit jamais être pointé vers
vous-même ou vers une autre personne,
qu'il contienne ou non des clous.
(3) Ne mettez pas l'outil en marche avant
qu'il ne soit fermement placé sur la pièce
à travailler.
(4) Respectez votre outil en tant
qu'instrument de travail.
(5) Évitez tout chahut.
(6) L'outil ne doit jamais être saisi ou
transporté en posant un doigt sur la
gâchette.
(7) Ne mettez jamais de clous dans l'outil
alors que l'une de ses commandes est
activée.
(8) Ne branchez jamais l'outil sur une source
d'alimentation autre que celle spécifiée
dans les instructions d'utilisation/sécurité
qui l'accompagnent.
6. Tout outil défectueux ne doit pas être utilisé.
7. Des étincelles s'échappent parfois de l'outil
pendant son utilisation. N'utilisez pas l'outil
près de substances ou matériaux volatiles ou
inflammables tels que l'essence, le diluant, la
peinture, le gaz, les adhésifs, etc. Ils
risqueraient de prendre feu, d'exploser et de
causer une blessure grave.
8. L'aire de travail doit être suffisamment
éclairée pour assurer la sécurité du travail.
L'aire de travail doit être maintenue propre et
exempte de déchets. Veillez particulièrement à
maintenir une bonne assise et une bonne
position d'équilibre.