Hitachi NV 45AB2 Instruction Manual

MODEL
MODÈLE
MODELO NV 45AB2
DANGER
Improper use of this Nailer can result in death or serious injury!
This Manual contains important information about product safety.
Read and understand this Manual before operating the Nailer.
Never allow anyone who has not reviewed this manual.
NAILER
CLOUEUR
MARTILLO NEUMÁTICO
PELIGRO
¡La utilización inadecuada e insegura de este martillo neumático puede resultar en
lesiones serias o en la muerte!
Este manual contiene información importante sobre la seguridad del producto.
Lea y entienda este manual antes de utilizar el martillo neumático.
No deje manejar esta herramienta a nadie que no haya leído este manual..
INSTRUCTION AND SAFETY MANUAL
MANUEL D'INSTRUCTIONS ET DE SECURITE
INSTRUCCIONES Y MANUAL DE SEGURIDAD
DANGER
Une utilisation incorrecte et sans respecter la sécurité de ce cloueur risque d’entraîner
la mort ou des blessures graves !
Ce manuel renferme des instructions importantes sur la sécurité de l’outil.
Lire et bien assimiler ce manuel avant d’utiliser le cloueur.
Ne jamais laisser les personnes n'ayant pas étutdié le manuel utiliser l'outil.

CONTENTS
TABLE DE MATIERES
INDICE
Français
Page
AVANT L’UTILISATION .......................................................... 26
ENVIRONNEMENT DE TRAVAIL ..................................... 26
ALIMENTATION D’AIR ..................................................... 26
GRAISSAGE ...................................................................... 27
ENTRETIEN PAR TEMPS FROID ...................................... 27
ESSAI DU CLOUEUR ........................................................ 27
RÉGLAGE DE LA PRESSION D’AIR ................................. 28
CHARGEMENT DES CLOUS ............................................ 28
UTILISATION DU CLOUEUR ................................................. 29
MÉTHODES D’UTILISATION ........................................... 30
UTILISATION DU GUIDE A BARDEAU ........................... 31
RÉGLAGE DE LA PROFONDEUR DE CLOUAGE ............ 31
ENTRETIEN
ENTRETIEN ET INSPECTION ................................................. 33
ENTRETIEN ET REPARATIONS ............................................. 34
Español
Página
ANTES DE LA OPERACIÓN ................................................... 43
ENTORNO DE TRABAJO ................................................. 43
SUMINISTRO DE AIRE ..................................................... 43
LUBRICACIÓN .................................................................. 44
CUIDADOS PARA CLIMAS FRÍOS ................................... 44
PRUEBA DEL MARTILLO NEUMÁTICO .......................... 44
AJUSTE DE LA PRESIÓN DE AIRE .................................. 45
CARGA DE PUNTAS ........................................................ 46
OPERACIÓN DEL MARTILLO NEUMÁTICO ......................... 47
MÉTODOS DE OPERACIÓN ............................................. 47
EMPLEO DE LA GUÍA PARA TEJAMANILES.................. 48
AJUSTE DE LA PROFUNDIDAD DE CLAVADO .............. 48
MANTENIMIENTO
MANTENIMIENTO E INSPECCIÓN ....................................... 50
SERVICIO Y REPARACIONES ................................................ 51
English
Page
BEFORE OPERATION ............................................................. 10
WORKING ENVIRONMENT ............................................. 10
AIR SUPPLY ...................................................................... 10
LUBRICATION ................................................................... 11
COLD WEATHER CARE .................................................... 11
TESTING THE NAILER...................................................... 11
ADJUSTING AIR PRESSURE ........................................... 12
LOADING NAILS ............................................................... 12
NAILER OPERATION .............................................................. 13
METHODS OF OPERATION ............................................. 14
USING THE SHINGLE GUIDE .......................................... 15
ADJUSTING THE NAILING DEPTH ................................. 15
MAINTENANCE
MAINTENANCE AND INSPECTION ...................................... 16
SERVICE AND REPAIRS ......................................................... 17
Page
IMPORTANT INFORMATION ................................................ 3
DEFINITIONS OF SIGNAL WORDS ...................................... 3
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS ...................................................... 4
IMPORTANT SAFETY INSTRUCTIONS FOR USING
NV45AB2 COIL NAILER ................................................... 7
EMPLOYER’S RESPONSIBILITIES ........................................ 7
OPERATION
NAME OF PARTS ................................................................... 8
SPECIFICATIONS ................................................................... 9
NAIL SELECTION ................................................................... 9
ACCESSORIES ....................................................................... 9
STANDARD ACCESSORIES ............................................ 9
OPTIONAL ACCESSORIES ............................................ 10
APPLICATIONS .................................................................... 10
Page
INFORMATION IMPORTANTE ............................................ 19
DEFINITION DES MOTS DE SIGNALISATION ................... 19
SECURITE
CONSIGNES DE SECURITE IMPORTANTES
POUR L’UTILISATION DU CLOUEUR ........................... 20
IMPORTANTES INSTRUCTIONS DE SECURITE POUR
L’UTILISATION DU CLOUEUR NV45AB2 ..................... 23
RESPONSABILITES DE L’EMPLOYEUR ..............................23
UTILISATION
NOM DES PIECES ................................................................ 24
SPECIFICATIONS ................................................................. 25
SELECTION DES CLOUS ..................................................... 25
ACCESSOIRES ..................................................................... 25
ACCESSOIRES STANDARD ...........................................25
ACCESSOIRES EN OPTION ...........................................26
APPLICATIONS .................................................................... 26
Página
INFORMACIÓN IMPORTANTE ............................................ 36
DEFINICIÓN DE LAS PALABRAS CLAVE ........................... 36
SEGURIDAD
INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA
LA UTILIZACIÓN DEL MARTILLO NEUMÁTICO
.................. 37
INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA
UTILIZAR EL MARTILLO NEUMÁTICO DE RISTRA NV45AB2
.... 40
RESPONSABILIDADES DEL EMPRESARIO ....................... 40
OPERACIÓN
NOMENCLATURA ................................................................41
ESPECIFICACIONES ............................................................ 42
SELECCIÓN DE PUNTAS .................................................... 42
ACCESORIOS ........................................................................42
ACCESORIOS ESTÁNDAR ............................................ 42
ACCESORIOS OPCIONALES ..........................................43
APLICACIONES .................................................................... 43

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English
IMPORTANT INFORMATION
READ AND UNDERSTAND ALL OF THE OPERATING INSTRUCTIONS, SAFETY PRECAUTIONS AND
WARNINGS IN THIS MANUAL BEFORE OPERATING OR MAINTAINING THIS NAILER.
Most accidents that result from the operation and maintenance of Nailers are caused by the failure to observe
basic safety rules or precautions. An accident can often be avoided by recognizing a potentially hazardous
situation before it occurs, and by observing appropriate safety procedures.
Basic safety precautions are outlined in the “SAFETY” section of this Manual and in the sections which
contain the operation and maintenance instructions.
Hazards that must be avoided to prevent bodily injury or machine damage are identified by DANGERS and
WARNINGS on the Nailer and in this Manual.
Never use this Nailer for applications other than those specified in this Manual.
DEFINITIONS OF SIGNAL WORDS
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury, or
may cause machine damage.
NOTE emphasizes essential information.

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English
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
MMMMFOR USING NAILERSMMlMM
READ ALL INSTRUCTIONS
DANGER
1. ALWAYS WEAR EYE PROTECTOR.
When operating the Nailer, always wear eye protector with side shields,
and make sure others in work area wear eye protector, too.
Eye protector must conform to the requirements of American National
Standards Institute, ANSI Z87.1 and provide protection against flying
particles both from the front and side.
The employer must enforce the use of eye protector by the Nailer
operator and others in work area.
2. NEVER USE BOTTLED GASES.
Never use oxygen, combustible gases or any other bottled gases as a
power source for the Nailer.
Use of the above gases is dangerous, as the Nailer will explode.
Use only clean, dry, regulated compressed air.
WARNING
3. DO NOT EXCEED 120 psi.
Do not exceed maximum recommended air pressure 120 psi (8.3 bar
8.5 kgf/cm2).
Never connect the Nailer to pressure which potentially exceeds 200 psi
(13.7 bar 14 kgf/cm2) as the Nailer can burst.
4. NEVER POINT NAILER TOWARD YOURSELF OR
ANYONE ELSE.
Always assume the Nailer contains fasteners.
Never point the Nailer toward yourself or anyone else,
whether it contains fasteners or not.
If fasteners are mistakenly driven, it can lead to severe
injuries.
Never engage in horseplay with the Nailer.
Respect the Nailer as a working implement.
5. NEVER CARRY WITH FINGER ON TRIGGER.
Remove finger from trigger when not driving fasteners.
Never carry the Nailer with finger on trigger since you
could drive a fastener unintentionally and injure
yourself or someone else.
Always carry the Nailer by the handle only.
6. ALWAYS WEAR EAR AND HEAD PROTECTOR.
Always wear ear protector to protect your ears from
loud noise.
Always wear head protector to protect your head from
flying objects.

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English
7. STORE NAILER PROPERLY.
When not in use, the Nailer should be stored in a dry
place. Keep out of reach of children. Lock the storage
area.
8. KEEP WORK AREA CLEAN.
Cluttered areas invite injuries. Clear all work areas of
unnecessary tools, debris, furniture, etc.
9. NEVER USE IN PRESENCE OF FLAMMABLE
LIQUIDS OR GASES.
The Nailer produces sparks during operation.
Never use the Nailer in sites containing lacquer, paint,
benzine, thinner, gasoline, gases, adhesive agents,
and other materials which are combustible or explosive.
10. KEEP VISITORS AWAY.
Do not let visitors handle the Nailer.
All visitors should be kept safely away from work
area.
11. DRESS PROPERLY.
Do not wear loose clothing or jewelry as they can be
caught in moving parts.
Rubber gloves and nonskid footwear are
recommended when working outdoors.
Wear protective hair covering to contain long hair.
12. NEVER USE NON RELIEVING COUPLER ON
NAILER.
If a non relieving coupler is used on the Nailer, the
Nailer can remain charged with air after disconnecting
and thus will be able to drive a fastener even after
disconnecting.
The Nailer and air hose must have a hose coupling
such that all pressure is removed from the Nailer
when the coupling joint is disconnected.
13. CHECK PUSH LEVER BEFORE USE.
Make sure the push lever operates properly. (The
push lever may be called “Safety”.) Never use the
Nailer unless the push lever is operating properly,
otherwise the Nailer could drive a fastener
unexpectedly. Do not tamper with or remove the push
lever, otherwise the push lever becomes inoperable.
14. KEEP ALL SCREWS AND COVERS TIGHTLY IN
PLACE.
Keep all screws and covers tightly mounted. Check
their condition periodically.
Never use the Nailer if parts are missing or damaged.
15. DO NOT LOAD FASTENERS WITH TRIGGER OR
PUSH LEVER DEPRESSED.
When loading fasteners into the Nailer or when
connecting the air hose,
1) do not depress the trigger;
2) do not depress the push lever; and
3) keep the Nailer pointed downward.
16. KEEP HANDS AND FEET AWAY FROM FIRING
HEAD DURING USE.
Never place your hands or feet closer than 8 inches
(200 mm) from the firing head.
A serious injury can result if the fasteners are
deflected by the workpiece, or are driven away from
the point of entry.
17. PLACE NAILER PROPERLY ON WORKPIECE.
Do not drive fasteners on top of other fasteners or
with the Nailer at too steep of an angle; the fasteners
can ricochet and hurt someone.
18. BE CAREFUL OF DOUBLE FIRE DUE TO RECOIL.
If the push lever is unintentionally allowed to re-contact
the workpiece following recoil, an unwanted fastener
will be driven.
In order to avoid this undesirable double fire,
1) do not push the Nailer on the workpiece with
strong force;
2) take the Nailer completely away from the
workpiece using recoil, and keep the push lever
away from the workpiece until the next desirable
shot; and
3) pull the trigger and release it QUICKLY when
performing intermittent operation (trigger fire).
19. DO NOT DRIVE FASTENERS INTO THIN
BOARDS OR NEAR CORNERS AND EDGES OF
WORKPIECE.
The fasteners can be driven through or away from the
workpiece and hit someone.
20. NEVER DRIVE FASTENERS FROM BOTH SIDES
OF A WALL AT THE SAME TIME.
The fasteners can be driven into and through the wall
and hit a person on the opposite side.
21. CHECK FOR LIVE WIRES.
Avoid the risk of severe electrical shock by checking
for live electrical wires that may be hidden by walls,
floors or ceilings. Turn off the breaker switch to
ensure there are no live wires.
22. NEVER CARRY NAILER BY HOUSE.
SAFETY — Continued
WARNING

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English
SAFETY — Continued
WARNING
23. DO NOT OVERREACH.
Keep proper footing and balance at all times.
24. NEVER USE NAILER WHICH IS DEFECTIVE OR
OPERATING ABNORMALLY.
If the Nailer appears to be operating unusually,
making strange noises, or otherwise appears
defective, stop using it immediately and arrange for
repairs by a Hitachi authorized service center.
25. DO NOT DISCONNECT AIR HOSE FROM NAILER
WITH FINGER ON TRIGGER.
The Nailer can fire when re-connected to an air supply.
26. DISCONNECT AIR HOSE FROM NAILER WHEN:
1) doing maintenance and inspection;
2) clearing a jam;
3) it is not in use;
4) leaving work area;
5) moving it to another location; and
6) handing it to another person.
Never attempt to clear a jam or repair the Nailer
unless you have disconnected air hose from the Nailer
and removed all remaining fasteners from the Nailer.
The Nailer should never be left unattended since
people who are not familiar with the Nailer might
handle it and injure the themselves.
27. STAY ALERT.
Watch what you are doing. Use common sense.
Do not operate the Nailer when you are tired.
The Nailer should never be used by you if you are
under the influence of alcohol, drugs or medication
that makes you drowsy.
28. HANDLE NAILER CORRECTLY.
Operate the Nailer according to this Manual.
Never allow the Nailer to be operated by children,
individuals unfamiliar with its operation or unauthorized
personnel.
29. NEVER USE NAILER FOR APPLICATIONS OTHER
THAN THOSE SPECIFIED IN THIS MANUAL.
30. HANDLE NAILER CAREFULLY
Because of high air pressure in the Nailer, cracks in
the surface are dangerous.
To avoid this, do not drop the Nailer or strike the
Nailer against hard surfaces; and do not scratch or
engrave signs on the Nailer. Handle the Nailer
carefully.
31. MAINTAIN NAILER WITH CARE.
Keep the Nailer clean and lubricated for better and
safer performance.
32. USE ONLY PARTS, ACCESSORIES OR
FASTENERS SUPPLIED OR RECOMMENDED BY
HITACHI.
Unauthorized parts, accessories, or fasteners may
void your warranty and can lead to malfunction and
resulting injuries.
Only service personnel trained by Hitachi, distributor
or employer shall repair the Nailer.
33. NEVER MODIFY OR ALTER A NAILER.
Doing so may cause it to malfunction and personal
injuries may result.

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English
1. Ensure that this MANUAL is available to operators and
personnel performing maintenance.
2. Ensure that Nailers are used only when operators and
others in work area are wearing EYE PROTECTOR.
3. Enforce the use of EYE PROTECTOR by operators and
others in work area.
4. Keep Nailers in safe working order.
5. Maintain Nailers properly.
6. Ensure that Nailers which require repair are not further
used before repair.
EMPLOYER’S RESPONSIBILITIES
SAVE THIS MANUAL AND
KEEP IT AVAILABLE FOR OTHERS!
IMPORTANT SAFETY INSTRUCTIONS FOR USING
NV45AB2 COIL NAILER
WARNING
1. CLOSE NAIL GUIDE AND DO NOT OPEN IT
DURING OPERATION.
If driving fasteners with the nail guide open, the
fasteners can be driven away from the workpiece.
2. KEEP THE MAIN BODY FACING UPWARD OR
KEEP THE NAIL GUIDE SIDE FACING
DOWNWARD WHEN NAILS ARE BEING
LOADED, AND DO NOT OPEN THE MAGAZINE.
The fasteners can fall down and result in personal
injury.
3. NEVER USE GASOLINE OR OTHER HIGHLY
FLAMMABLE LIQUIDS FOR CLEANING.
Vapor of such liquids inside the Nailer could be
ignited by a spark produced during nailing, which can
cause an explosion.
SAFETY — Continued

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English
OPERATION
NOTE:
The information contained in this Manual is designed to assist you in the safe operation of the
Nailer.
Some illustrations in this Manual may show details or attachments that differ from those on
your own Nailer.
NAME OF PARTS
Feed Piston
Piston
Piston O-ring
Driver Blade
Nose
Adjuster
Push Lever
AA
Cap
Exhaust Cover
Trigger Body
Air Plug (Sold separately)
Magazine Assembly
Magazine Cover
Nail Holder
Shingle Guide
Feeder
Firing Head (Outlet)
Section A-A
Main Nail Stopper Nail Guide
Feeder

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English
SPECIFICATIONS
Operating pressure 70 – 120 psi (4.9 – 8.3 bar 5 – 8.5 kgf/cm2)
Dimensions 9-27/32" ×10-3/8" ×4-5/8"
Length ×Height ×Width (250 mm ×264 mm ×117 mm)
Weight 5.5 lbs (2.5 kg)
Nail capacity 120 nails (1 coil)
.035 ft3/cycle at 100 psi
Air consumption (.99 ltr/cycle at 6.9 bar)
(.99 ltr/cycle at 7 kgf/cm2)
Air inlet 3/8 NPT Thread
NAIL SELECTION
Only nails shown in the Table below can be driven with this Nailer.
NOTE: Use only genuine Hitachi nails to assure nail quality and driving ease.
ACCESSORIES
WARNING
 Accessories other than those shown below can lead to malfunction and resulting injuries.
STANDARD ACCESSORIES
1Eye protector 1
2Allen wrench for M5 screw 1
3Allen wrench for M4 screw 1
Min. Max.Wire-collated coil nails
123
.413"
(10.5mm)
.120"
(3.05mm)
7/8"(22mm)
.413"
(10.5mm)
.120"
(3.05mm)
1-3/4"(45mm)

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English
OPTIONAL ACCESSORIES
... sold separately
Sequential Trip Mechanism Kit (Code No. 878226)
(Single Shot Parts)
Pneumatic Tool Lubricant
1 oz. (30 cc) oil feeder (Code No. 877153)
4 oz. (120 cc) oil feeder (Code No. 874042)
1 quart (1 ltr) can (Code No. 876212)
NOTE: Accessories are subject to change without any
obligation on the part of HITACHI.
APPLICATIONS
Installation of asphalt roofing shingles in building
contrcution.
Installation of insulation boards in building
construction.
BEFORE OPERATION
Read section titled “SAFETY” (pages 4 – 7).
Make sure of the followings before operation.
WORKING ENVIRONMENT
WARNING
No flammable gas, liquid or other flammable
objects at worksite.
Clear the area of children or unauthorized personnel.
AIR SUPPLY
DANGER
Never use oxygen, combustible gases or any other
bottled gases.
WARNING
Never connect Nailer to pressure which potentially
exceeds 200 psi (13.7 bar 14 kgf/cm2).
Never use non relieving coupler on Nailer.
1. Power source
Use only clean, dry, regulated compressed air as a
power source for this Nailer.
Air compressors used to supply compressed air to this
Nailer must comply with the requirements of the latest
version of ANSI Standard B 19.3 “Safety Standard For
Compressors For Process Industries.”
Moisture or oil in the air compressor may accelerate
wear and corrosion in the Nailer.
Drain daily.
2. Filter-Regulator-Lubricator
Use a regulator with a pressure range of 0 – 120 psi
(0 – 8.3 bar 0 – 8.5 kgf/cm2).
Filter-regulator-lubricator units supply an optimum
condition for the Nailer and extend the Nailer life.
These units should always be used.
Filter ..............The filter removes moisture and dirt
mixed in compressed air.
Drain daily unless fitted with an
automatic drain.
Keep the filter clean by regular
maintenance.
Regulator ......The regulator controls the operating
pressure for safe operation of the Nailer.
Inspect the regulator before operation to
be sure it operates properly.
Lubricator .....The lubricator supplies an oil mist to the
Nailer.
Inspect the lubricator before operation to
be sure the supply of lubricant is adequate.
Use Hitachi pneumatic tool lubricant.
3. Air hose
Air hose must have a minimum working pressure
rating of 150 psi (10.4 bar 10.6 kgf/cm2) or 150% of the
maximum pressure produced in the system, whichever
is higher.
4. Hose coupling
The Nailer can be installed as follows:
Remove the dust cap placed at the air inlet.
Install a 3/8 NPT male plug at the air inlet.
A female coupler must be on the air hose.
The hose coupling (male plug-female coupler) must
remove all pressure from the Nailer when disconnected.
Never use a non relieving coupler on the Nailer.
Dust Cap
3/8 NPT Male Plug
Compressor Side
Nailer Side
Filter
Lubricator
Regulator

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English
TESTING THE NAILER
DANGER
Always wear eye protector.
WARNING
Never use Nailer unless push lever is operating
properly.
Before actually beginning the nailing work, test the Nailer
by using the check list below. Conduct the tests in the
following order.
If abnormal operation occurs, stop using the Nailer and
contact a Hitachi authorized service center immediately.
(1) DISCONNECT AIR HOSE FROM NAILER.
REMOVE ALL NAILS FROM NAILER.
ALL SCREWS MUST BE TIGHTENED.
If any screws are loose, tighten them.
THE PUSH LEVER AND TRIGGER MUST MOVE
SMOOTHLY.
5. Air consumption
Using the Air consumption table and the Air
compressor size formula, find a correct compressor size.
Air consumption table
Air compressor size formula
Amount of air required
=number of Nailers
×average nails driven each minute per Nailer
×air consumption at given air pressure
×safety factor (always 1.2)
Example: 2 Nailers operating at 100 psi driving 30 nails
per minute
Amount of air required
=2 ×30 ×.035 (.99) ×1.2
=2.5 CFM (ft3/min) (71 ltr/min)
After making the calculations as shown above, you
should find a compressor providing 2.5 CFM of air that
is required.
LUBRICATION
It is important that the Nailer be properly lubricated.
Without proper lubrication, the Nailer will not work
properly and parts will wear prematurely.
Use Hitachi pneumatic tool lubricant.
Do not use detergent oil or additives. These lubricants
will harm the O-rings and other rubber parts. This will
cause the Nailer to malfunction.
Filter-regulator-lubricator units should always be used.
Keep the lubricator filled with Hitachi pneumatic tool
lubricant.
If a lubricator is not available, supply 5 – 10 drops of
Hitachi pneumatic tool lubricant into the air plug on
the Nailer twice a day.
COLD WEATHER CARE
Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area until beginning the
work.
If the Nailer is already cold, bring it in a warm area and
allow the Nailer to warm up before use.
1Reduce the air pressure to 64 psi (4.4 bar
4.5 kgf/cm2).
2Remove all nails from the Nailer.
3Connect the air hose and free-fire (blank-fire) the
Nailer.
The lowered air pressure will be enough to free-fire
the Nailer.
Slow speed operation tends to warm up the
moving part.
CAUTION
Do not free-fire the Nailer at high pressure.
psi 80 90 100
Operating pressure (bar) (5.5) (6.2) (6.9)
(kgf/cm2) (5.6) (6.3) (7)
Air consumption ft3/cycle .025 .030 .035
(ltr/cycle) (.71) (.85) (.99)
Trigger
Push Lever
Do not
connect
air hose

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English
(2) Adjust the air pressure to 70 psi (4.9 bar 5 kgf/cm2).
Connect the air hose.
Do not load any nails in the Nailer.
THE NAILER MUST NOT LEAK AIR.
Hold the Nailer downward and pull the trigger.
THE NAILER MUST NOT OPERATE.
(3) With finger off the trigger, depress the push lever
against the workpiece.
THE NAILER MUST NOT OPERATE.
(4) Without touching the trigger, depress the push lever
against the workpiece.
Pull the trigger.
THE NAILER MUST OPERATE
(5) With the Nailer off the workpiece, pull the trigger.
Depress the push lever against the workpiece.
THE NAILER MUST OPERATE.
(6) If no abnormal operation is observed, you may load
nails in the Nailer.
Drive nails into the workpiece that is the same type to
be used in the actual application.
THE NAILER MUST OPERATE PROPERLY.
ADJUSTING AIR PRESSURE
WARNING
Do not exceed 120 psi (8.3 bar 8.5 kgf/cm2).
Adjust the air pressure at recommended operating
pressure 70 – 120 psi (4.9 – 8.3 bar 5 – 8.5 kgf/cm2)
according to the length of nails and the hardness of
workpiece.
The correct air pressure is the lowest pressure which will
do the job. Using the Nailer at a higher than required air
pressure unnecessarily over stresses the Nailer.
LOADING NAILS
WARNING
When loading nails into Nailer,
1) do not pull trigger;
2) do not depress push lever; and
3) keep Nailer pointed downward.
(1) Grip the nail guide and knob with your fingers. Press
the knob down and swing the nail guide open. Then
open the magazine cover.
(2) Adjust the position of the nail holder according to the
nail length.
The nail will not feed smoothly if the nail holder is not
correctly adjusted.
1Turn the nail holder about 90 degrees
counterclockwise.
2Move the nail holder up and down to align the plate
of the nail holder with a mark on the magazine in
accordance with the length of the nails being used.
3Turn the nail holder 90 degrees clockwise until you
hear "click".
Nail Guide
Knob
Pull Trigger
Do not pull Trigger
Depress
Push Lever
Magazine
Cover

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English
NOTE: Before loading nails in the magazine, adjust the
nail holder. If the magazine cover is forcibly closed
without adjusting the nail holder correctly, the nail
holder may be damaged.
(3) Place the nail coil in the magazine.
Insert the first nail into the magazine opening.
(4) Close the magazine cover.
(5) 1Uncoil enough nails to reach the driving hole.
2Insert the first nail into the driving hole and the
second nail between the two pawls of the feeder.
3Fit the nail heads in the guide slot.
NOTE: Be careful not to deform the collated wires and
not to disengage the nails with the guide surface.
Otherwise, the nail guide will not close correctly.
4Pulling the nails to the right
After checking and making sure that the magazine
cover is closed, hook your fingers on the nail guide
and knob, turn the nail guide clockwise while
pressing the knob downward, and then close the
nail guide completely.
(6) Lock the knob completely.
The Nailer is now ready to operate.
NAILER OPERATION
Read section titled “SAFETY”(pages 4 – 7).
DANGER
Always wear eye protector with side shields which
conforms to ANSI Z87.1 specifications.
WARNING
Never point Nailer toward yourself or anyone else.
Never carry with finger on trigger.
Remove finger from trigger when not driving nails.
Never place your hands or feet closer than 8 inches
(200 mm) from firing head when using.
Do not drive nails on top of other nails or with
Nailer at too steep of an angle; nails can ricochet
and hurt someone.
In order to avoid double fire or unwanted ejection
of a nail due to bouncing of the Nailer.
1) do not push Nailer on workpiece with strong
force;
2) take Nailer away from workpiece using recoil;
3) release trigger quickly when performing trigger
fire.
Do not drive nails into thin boards or near corners
and edges of workpiece. Nails can be driven
through or away from workpiece and hit someone.
Never drive nails from both sides of a wall at the
same time. Nails can be driven into and through
the wall and hit a person on the opposite side.
Never use Nailer which is defective or operating
abnormally.
First Nail
Magazine
Magazine Opening
Nail
Magazine
For 7/8", 1" and
1-1/4" (22 mm,
25 mm, 32 mm)
For 1-1/2" (38 mm)
Plate
For 1-3/4" (45 mm) 1
2
3
Driving Hole
First Nail
Nail Guide
Guide Slot
Pawl
Guide Surface
Feeder
1
23
2
4
4
Knob
4
Nail Guide Magazine Cover
Nail Holder

— 14 —
English
This Hitachi nailer has a STANDARD CONTACT TRIP
MECHANISM (Bounce Fire). An OPTIONAL SEQUENTIAL
TRIP MECHANISM kit (SINGLE SHOT) is available as order
part number 878226.
THE STANDARD CONTACT TRIP MECHANISM (Bounce
Fire) is for use where rapid fastener placement is desired
and must be operated in accordance with the following
“Methods of Operation”.
NOTE:
Be careful that the final nail can be dropped or driven
at an irregular angle.
METHODS OF OPERATION
This Nailer is equipped with the push lever and does not
operate unless the push lever is depressed (upward
position).
There are two methods of operation to drive nails with
this Nailer.
They are:
1. Intermittent operation (Trigger fire):
2. Continuous operation (Push lever fire):
(1) Intermittent operation (Trigger fire)
1Position the nail outlet on the workpiece with finger
off the trigger.
2Depress the push lever firmly until it is completely
depressed.
3Pull the trigger to drive a nail.
4Remove finger from the trigger.
To drive another nail, move the Nailer along the
workpiece and repeat this procedure.
(2) Continuous operation (Push lever fire)
1Pull the trigger with the Nailer off the workpiece.
2Depress the push lever against the workpiece to
drive a nail.
3Move the Nailer along the workpiece with a
bouncing motion.
Each depression of the push lever will drive a nail.
As soon as the desired number of nails have been
driven, remove finger from the trigger.
WARNING
Keep your finger off the trigger except during
fastening operation, because serious injury could
result if the push lever accidentally contacts you or
others in work area.
Keep hands and body away from the discharge
area. The nailer with contact trip mechanism may
bounce from the recoil of driving a fastener and
unwanted subsequent fastener may be driven,
possibly causing injury.
Some types of loaded nails can spark out of the
muzzle during a nail driving operation. Exericise
caution!
THE OPTIONAL SEQUENTIAL TRIP MECHANISM (SINGLE
SHOT PARTS) is for use where precision fastener
placement is desired and must be operated in accordance
with the following “Method of Operation”.
You must first depress the push lever (upward posi-
tion) where you wnat to drive a nail and then pull the
trigger. After the each nail is driven, completely release
the trigger and lift the tool off the work surface.
An OPTIONAL SEQUENTIAL TRIP MECHANISM may
reduce the possibility of bodily injury to you or others
in the work area. This is because it is less likely to drive
an unwanted nail if you keep the trigger pulled and
accidentally bump the push lever against yourself or
others. An OPTIONAL SEQUENTIAL TRIP MECHANISM
may also reduce the speed of operation compared to
the standard contact trip mechanism.
NOTE:
Both STANDARD CONTACT TRIP MECHANISM and
OPTIONAL SEQUENTIAL TRIP MECHANISM are safe if
used as described above and accroding to all warnings
and instructions.
Always handle nails and package carefully.
If nails are dropped, collating wire may be damaged
and cut, which will cause mis-feeding and jamming.
After nailing:
1) disconnect air hose from the Nailer;
2) remove all nails from the Nailer;
3) supply 5 – 10 drops of Hitachi pneumatic tool
lubricant into the air plug on the Nailer; and
4) open the petcock on the air compressor tank to
drain any moisture.
Push Lever
Trigger
Previously pull
the trigger
3
2
Do not use Nailer as hammer.
Disconnect air hose from Nailer when:
1) it is not in use;
2) leaving work area;
3) moving it to another location; and
4) handing it to another person.
3
1

— 15 —
English
USING THE SHINGLE GUIDE
The shingle guide can be used to control shingle spacing.
Adjust the shingle guide in the following order.
1DISCONNECT AIR HOSE FROM NAILER
2Loosen the hex. socket hd. bolt with the accessory
Allen wrench.
3Place the shingle guide against the bottom of the first
row of shingles.
4Adjust the distance between the outlet and the shingle
guide to the proper shingle exposure by sliding the
shingle guide.
5Tighten the hex. socket hd. bolt.
NOTE:
The proper shingle exposure will depend on the type
of shingle and the manufacturer's specifications.
The shingle guide is not to be utilized as an indicator of
nail location.
ADJUSTING THE NAILING DEPTH
To assure that each nail penetrates to the same depth, be
sure that:
1) the air pressure to the Nailer remains constant
(regulator is installed and working properly), and
2) the Nailer is always held firmly against the workpiece.
If nails are driven too deep or shallow into the workpiece,
adjust the nailing in the following order.
1DISCONNECT AIR HOSE FROM NAILER
2If nails are driven too deep, turn the adjuster
counterclockwise while pulling it downward.
When the adjuster is released, it returns upward.
Furthermore, turn the adjuster until it reaches a
position where it gets fixed with a clock.
Too Deep Flush
Turn Adjuster
Too Shallow Flush
Turn Adjuster
Adjuster
Disconnect air hose
15
If nails are driven too shallow, turn the adjuster
clockwise while pulling it downward.
When the adjuster is released, it return upward.
Furthermore, turn the adjuster until it reaches a
position where it gets fixed with a clock.
The adjuster can be fiexed each at 1/4 rotation.
The adjuster moves approximately 0.25mm per 1/4
rotation.
3Stop turning the adjuster when a suitable position is
reached for a nailing test.
4Connect the air hose.
ALWAYS WEAR EYE PROTECTOR.
Perform a nailing test.
5DISCONNECT AIR HOSE FROM NAILER.
6Choose a suitable position for the adjuster.
Second Row
First Row
Outlet
Proper Shingle
Exposure
Disconnect
air hose
Shingle Guide Hex. Socket
Hd. Bolt
4
1
3
2
2

— 16 —
English
MAINTENANCE
NOTE:
The information contained in this Manual is designed to assist you in the safe maintenance of
the Nailer.
Some illustrations in this Manual may show details or attachments that differ from those on
your own Nailer.
MAINTENANCE AND INSPECTION
Read section titled “SAFETY” (pages 4 – 7).
WARNING
Disconnect air hose and remove all nails from
Nailer when:
1) doing maintenance and inspection; and
2) clearing a jam.
Never use gasoline or other highly flammable
liquides for cleaning.
1. Clearing a jam
Remove a jammed nail in the following order :
1DISCONNECT AIR HOSE.
2Open the nail guide.
3Insert a rod into the outlet.
Tap the rod with a hammer.
4Remove the jammed nail with a slotted screw
driver.
5Cut the deformed collated wire with nippers.
Correct the deformation.
6In case of frequent jam, contact a Hitachi authorized
service center.
Hammer
Rod
Outlet
Disconnect
air hose
Nail
Slotted Screw Driver
2. Inspecting the feeders
1DISCONNECT AIR HOSE.
2Clean the knob sliding part.
Lubricate it with Hitachi pneumatic tool lubricant.
3Open the nail guide and remove dust.
Lubricate the nose opening and feeder shaft.
CAUTION
Check that the main nail stopper and sub nail stopper
slide smoothly by pushing them with finger.
If not smooth, nails can be driven at an irregular angle
and hurt someone.
4Lubricate the feeding surfaces of the nose and the
nail guide after cleaning.
This promotes smooth operation and prevents rust.
Nail Guide
Knob
Disconnect
air hose
1
1
Nail Guide
Sub Nail Stopper Feeder Shaft
Feeder
Nose Opening
Main Nail Stopper

— 17 —
English
3. Cleaning and removal of tar and dirt
Tar and dirt may build up on the nose and push lever.
This can prevent correct operation.
Clean and remove tar and dirt with kerosene, #2 fuel
oil or diesel fuel.
NEVER USE GASOLINE or other highly flammable
liquids.
Vapor of such liquids inside the Nailer could be ignited
by a spark produced during nailing, which can cause
an explosion.
1Immer only the area around the outlet in solvent.
Do not immerse the magazine or body.
Plastic parts and O-ring may be damaged.
2Dry off the Nailer before use. Any oil film left after
cleanup will accelerate the tar buildup, and the
Nailer will requite more frequent re-cleaning.
3Make sure the push lever operates properly.
WARNING
Never use Nailer unless push lever is operating
properly.
NOTE:
Solvents sprayed on nose to clean and free up the
push lever may have the opposite effect. The solvent
may soften the tar on the shingles and cause tar
buildup to be accelerated. Dry operation is better.
4. Inspecting the magazine
1DISCONNECT AIR HOSE.
2Clean the magazine. Remove dust or wooden tips
which may have accumulated in the magazine.
5. Storing
When not in use for an extended period, apply a thin
coat of the lubricant to the steel parts to avoid rust.
Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area.
When not in use, the Nailer should be stored in a warm
and dry place.
Keep out of reach children.
Body
Push
Lever
Outlet
Magazine
Nose
Warning Label
6. WARNING LABEL
Change the WARNING LABEL if missing or damaged.
A new WARNING LABEL is available from a Hitachi
authorized service center.
7. Maintenance chart (See page 18)
8. Operator troubleshooting (See page 18)
SERVICE AND REPAIRS
WARNING
Only service personnel trained by Hitachi,
distributor or employer shall repair the Nailer.
Use only parts supplied or recommended by
Hitachi for repair.
All quality Nailers will eventually require servicing or
replacement of parts because of wear from normal use.
NOTE:
Specifications are subject to change without any
obligation on the part of HITACHI.

— 18 —
English
Maintenance chart
ACTION WHY HOW
Drain air line filter daily. Prevent accumulation of moisture Open manual petcock.
and dirt.
Keep lubricator filled. Keep the Nailer lubricated. Fill with Hitachi pneumatic tool
lubricant.
Clean filter element — then blow Prevent clogging of filter with dirt. Follow manufacturer’s instructions.
air through filter in direction
opposite to normal flow.
Clean magazine and feeder Prevent a jam. Blow clean daily.
mechanism.
Keep push lever working properly. Promote operator safety and Blow clean daily.
efficient Nailer operation.
Lubricate the Nailer after nailing. Extend the Nailer life. Supply 5 – 10 drops of lubricant into
the Nailer.
Drain air compressor. Keep the Nailer operated properly. Open petcock on air compressor tank.
PROBLEM
Nailer operates, but no nail is driven.
Operator troubleshooting
Most minor problems can be resolved quickly and easily using the table below.
If problems persist, contact a Hitachi authorized service center for assistance.
CHECK METHOD CORRECTION
Open nail guide. Check for a jam. Clear a jam per page 16.
Check function of feeder per Clean and lubricate.
page 16.
Check for proper nails. Use only recommended nails.
Check air pressure. Increase air pressure. (Do not
exceed 120 psi (8.3 bar 8.5 kgf/cm2))
Check position of adjuster per page 15. Readjust.
——— Use Hitachi pneumatic tool lubricant.
Driver blade worn? Contact Hitachi for replacement.
Piston O-ring worn or damaged?
Check air pressure. Reduce air pressure.
(Adjust 70 – 120 psi
(4.9 – 8.3 bar 5 – 8.5 kgf/cm2))
Check position of adjuster per page 15. Readjust.
Check for proper nails. Use only recommended nails.
Check function of nail feeder per Clean and lubricate.
page 16.
——— Use Hitachi pneumatic tool lubricant.
Check position of nail holder in Adjust nail holder to proper position.
magazine per page 12.
Piston O-ring cut or heavily worn? Contact Hitachi for replacement.
Check for proper nails. Use only recommended nails.
Driver blade worn? Contact Hitachi for replacement.
Check inside diameter of air hose. Use larger air hose.
Weak drive.
Slow to cycle.
Drives too deep.
Skipping nails. Intermittent feed.
Nails jam.
Driven nail is bent.
Drives properly during normal
operation, but does not drive fully
at faster nailing speeds.

— 19 —
Français
INFORMATION IMPORTANTE
LIRE ET BIEN ASSIMILER TOUTES LES INSTRUCTIONS D’UTILISATION, LES PRECAUTIONS DE SECURITE ET
LES AVERTISSEMENTS DU MANUEL AVANT D’UTILISER OU D’ENTRETENIR LE CLOUEUR.
La plupart des accidents résultant de l’utilisation ou de l’entretien des cloueurs sont dus au non respect de
certaines consignes et précautions de sécurité élémentaires. Un accident peut souvent être évité en
reconnaissant une situation potentiellement dangereuse avant qu’elle ne se produise, et en respectant les
procédures de sécurité applicables.
Les consignes de sécurité élémentaires sont données dans la section “SECURITE” du manuel et dans les
sections relatives aux instructions d’utilisation et d’entretien.
Les dangers à éviter pour empêcher tout risque de blessures ou de dommage de l’outil sont identifiés par les
mots DANGER et AVERTISSEMENT, sur le cloueur et dans ce manuel.
Ne jamais utiliser ce cloueur pour des applications autres que celles qui sont spécifiées dans ce manuel.
DEFINITION DES MOTS DE SIGNALISATION
DANGER indique une situation imminente dangereuse qui, si elle n’est pas évitée, entraînera la mort ou des blessures
graves.
AVERTISSEMENT indique une situation potentiellement dangereuse qui, si elle n’est pas évitée, risque d’entraîner la
mort ou des blessures graves.
ATTENTION indique une situation potentiellement dangereuse qui, si elle n’est pas évitée, risque d’entraîner des
blessures légères ou modérées, ou d’endommager l’outil.
REMARQUE met en relief les informations essentielles.

— 20 —
Français
SECURITE
CONSIGNES DE SECURITE IMPORTANTES
POUR L’UTILISATION DU CLOUEUR
LIRE TOUTES CES INSTRUCTIONS.
DANGER
1. TOUJOURS PORTER DES LUNETTES DE PROTECTION.
Quand on utilise le cloueur, toujours porter des lunettes de protection
avec visières latérales, et veiller à ce que les autres personnes dans la
zone de travail en portent également.
Les lunettes de protection devront respecter les exigences de l’ANSI
(American National Standards Institute) Z87.1 et assurer la protection
contre les projections de particules arrivant par l’avant ou par le côté.
L’employeur doit veiller à ce que la personne qui utilise le cloueur et les
autres personnes dans l’aire de travail portent des lunettes de protection.
2. NE JAMAIS UTILISER DE GAZ EN BOUTEILLE.
Ne jamais utiliser d’oxygène, de gaz combustibles ni aucun autre gaz en
bouteille comme source d’alimentation du cloueur.
L’utilisation de ces gaz serait dangereuse, car le cloueur exploserait.
Utiliser exclusivement de l’air comprimé propre, sec et régulé.
AVERTISSEMENT
3. NE PAS DEPASSER 120 PSI.
Ne pas dépasser la pression d’air maximale recommandée de 120 psi
(8,3 bars, 8,5 kgf/cm2).
Ne jamais raccorder le cloueur à une pression susceptible de dépasser
200 psi (13,7 bars, 14 kgf/cm2) car le cloueur pourrait exploser.
4. NE JAMAIS CLOUER VERS SOI NI VERS
QUELQU’UN D’AUTRE.
Toujours supposer que le cloueur renferme des clous.
Ne jamais diriger le cloueur vers soi ni vers quelqu’un
d’autre.
Si l’on enfonce des clous par erreur, cela risque de
provoquer des blessures graves.
Ne jamais s’amuser avec le cloueur.
Le cloueur est un instrument de travail. Le respecter.
5. NE JAMAIS TRANSPORTER L’OUTIL AVEC LE
DOIGT SUR LA GACHETTE.
Retirer le doigt de la gâchette quand on n’enfonce pas
de clous.
Ne jamais transporter l’outil avec le doigt sur la
gâchette, car on risquerait d’enfoncer
accidentellement un clou et de se blesser ou de
blesser quelqu’un d’autre.
Toujours transporter le cloueur exclusivement par sa
poignée.
6. TOUJOURS PORTER DES PROTECTIONS ANTI-
BRUIT ET UN CASQUE.
Toujours porter des protections anti-bruit pour ne pas
s’endommager l’ouïe.
Toujours porter un casque pour se protéger la tête
contre les projectiles.