Hitachi Koki NV65AC, NV 50A1, NV83a2 User Manual
Instruction and safety manual
Manuel d'instructions et de securite
Instrucciones y manual de seguridad
Model
Modèle
Modelo
NV 83A2 • NV 65AC • NV 50A1
NV83A2
NV65AC
NV50A1
Nailer
Cloueur
Clavador
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.
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.
PELIGRO
¡La utilización inadecuada e insegura de este clavador 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 clavador.
No deje manejar esta herramienta a nadie que no haya leído este manual.
English
IMPORTANT INFORMATION .................................................. 3
DEFINITIONS OF SIGNAL WORDS ....................................... 3
SAFETY .................................................................................... 4
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERSMMLMM .................................4
IMPORTANT SAFETY INSTRUCTIONS FOR USING
NV83A2•NV65AC•NV50A1 COIL NAILER.........................6
EMPLOYER’S RESPONSIBILITIES .......................................... 7
OPERATION .............................................................................8
NAME OF PARTS ....................................................................8
SPECIFICATIONS .................................................................... 9
NAIL SELECTION .................................................................... 9
ACCESSORIES .........................................................................9
STANDARD ACCESSORIES .............................................. 9
OPTIONAL ACCESSORIES .............................................10
CONTENTS
Page
Page
APPLICATIONS ......................................................................10
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 .............................................................. 13
NAILER OPERATION .............................................................14
METHODS OF OPERATION ............................................15
ADJUSTING THE NAILING DEPTH ................................16
MAINTENANCE .....................................................................17
MAINTENANCE AND INSPECTION ..................................... 17
SERVICE AND REPAIRS ........................................................18
Français
INFORMATION IMPORTANTE .............................................20
DEFINITION DES MOTS DE SIGNALISATION ....................20
SECURITE ..............................................................................21
CONSIGNES DE SECURITE IMPORTANTES
POUR L’UTILISATION DU CLOUEUR .......................21
IMPORTANTES INSTRUCTIONS DE SECURITE POUR
L’UTILISATION DU CLOUEUR
NV83A2•NV65AC•NV50A1 ..............................................24
RESPONSABILITES DE L’EMPLOYEUR ...............................24
UTILISATION ......................................................................... 25
NOM DES PIECES .................................................................25
SPECIFICATIONS ................................................................... 26
SELECTION DES CLOUS ......................................................26
ACCESSOIRES .......................................................................26
ACCESSOIRES STANDARD ............................................ 26
ACCESSOIRES EN OPTION ............................................27
TABLE DE MATIERES
Page
Español
Página
INFORMACIÓN IMPORTANTE ............................................. 37
DEFINICIÓN DE LAS PALABRAS CLAVE .............................37
SEGURIDAD ........................................................................... 38
INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA
LA UTILIZACIÓN DEL CLAVADOR .................................38
INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA
UTILIZAR EL CLAVADOR DE RISTRA
NV83A2•NV65AC•NV50A1 ..............................................41
RESPONSABILIDADES DEL EMPRESARIO .........................41
OPERACIÓN ...........................................................................42
NOMENCLATURA .................................................................42
ESPECIFICACIONES ..............................................................43
SELECCIÓN DE CLAVOS ......................................................43
ACCESORIOS ......................................................................... 43
ACCESORIOS ESTÁNDAR ..............................................43
ACCESORIOS OPCIONALES ..........................................44
Page
APPLICATIONS ......................................................................27
AVANT L’UTILISATION ......................................................... 27
ENVIRONNEMENT DE TRAVAIL ....................................27
ALIMENTATION D’AIR ....................................................27
GRAISSAGE .....................................................................28
ENTRETIEN PAR TEMPS FROID ..................................... 28
ESSAI DU CLOUEUR ....................................................... 28
REGLAGE DE LA PRESSION D’AIR ................................29
CHARGEMENT DES CLOUS ...........................................30
UTILISATION DU CLOUEUR ................................................31
METHODES D’UTILISATION .......................................... 32
REGLAGE DE LA PROFONDEUR DE CLOUAGE ........... 33
ENTRETIEN ............................................................................34
ENTRETIEN ET INSPECTION ................................................34
ENTRETIEN ET REPARATIONS ............................................35
INDICE
Página
APLICACIONES ...................................................................... 44
ANTES DE LA OPERACIÓN .................................................. 44
ENTORNO DE TRABAJO ................................................ 44
SUMINISTRO DE AIRE ....................................................44
LUBRICACIÓN .................................................................45
CUIDADOS PARA CLIMAS FRÍOS .................................. 45
PRUEBA DEL CLAVADOR ...............................................45
AJUSTE DE LA PRESIÓN DE AIRE ................................. 47
CARGA DE CLAVOS ........................................................47
OPERACIÓN DEL CLAVADOR .............................................. 49
MÉTODOS DE OPERACIÓN ............................................ 49
AJUSTE DE LA PROFUNDIDAD DE CLAVADO .............50
MANTENIMIENTO ................................................................. 51
MANTENIMIENTO E INSPECCIÓN ......................................51
SERVICIO Y REPARACIONES ...............................................52
English
IMPORTANT INFORMATION
Read and understand tool labels and all of the operating instructions, safety
precautions and warnings in this manual before operating or maintaining this nailer.
Failure to follow warnings could result in DEATH or SERIOUS INJURY.
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.
— 3 —
English
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS
READ ALL INSTRUCTIONS
DANGER
1. OPERATORS AND OTHERS IN WORK AREA MUST WEAR SAFETY GLASSES WITH SIDE SHIELDS.
When operating the Nailer, always wear safety glasses with side shields, and make sure others in
work area wear safety glasses, too.
Safety glasses 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 safety glasses by the Nailer operator and others in work
area.
2. NEVER USE OXYGEN OR OTHER BOTTLED GASES. EXPLOSION MAY OCCUR.
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. NEVER POINT TOOL AT YOURSELF OR OTHERS IN WORK AREA.
Always assume the Nailer contains fasteners.
Never point the Nailer at yourself toward yourself or others, 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.
4. KEEP FINGERS AWAY FROM TRIGGER WHEN NOT DRIVING NAILS TO AVOID ACCIDENTAL FIRING.
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.
5. CHOICE OF TRIGGERING METHOD IS IMPORTANT.
Please read and understand page 15 of “METHODS OF OPERATION.”
6. DO NOT EXCEED 120 psi. (8.3 bar 8.5 kgf/cm2)
Do not exceed maximum recommended air pressure 120 psi (8.3 bar
8.5 kgf/cm
Never connect the Nailer to pressure which potentially exceeds 200 psi
(13.7 bar 14 kgf/cm
7. ALWAYS WEAR EAR AND HEAD PROTECTION.
Always wear ear protection to protect your ears from loud noise.
Always wear head protection to protect your head from flying objects.
2
).
— 4 —
2
) as the Nailer can burst.
SAFETY — Continued
WARNING
English
8. 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.
9. KEEP WORK AREA CLEAN.
Cluttered areas invite injuries. Clear all work areas of
unnecessary tools, debris, furniture, etc.
10. 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.
11. KEEP VISITORS AWAY.
Do not let visitors handle the Nailer.
All visitors should be kept safely away from work
area.
12. 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.
13. 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.
14. 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.
15. 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.
16. DO NOT LOAD FASTENERS WITH TRIGGER
PULLED OR PUSH LEVER DEPRESSED.
When loading fasteners into the Nailer or when
connecting the air hose,
1) do not pull the trigger;
2) do not depress the push lever; and
3) keep the Nailer pointed downward.
17. 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.
18. 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.
19. BE CAREFUL OF DOUBLE FIRE DUE TO RECOIL.
If the push lever is unintentionally allowed to recontact 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).
20. 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.
21. 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.
22. 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.
23. NEVER CARRY NAILER BY HOSE.
— 5 —
English
SAFETY — Continued
WARNING
24. DO NOT OVERREACH.
Keep proper footing and balance at all times.
25. 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.
26. DO NOT DISCONNECT AIR HOSE FROM NAILER
WITH FINGER ON TRIGGER.
The Nailer can fire when re-connected to an air
supply.
27. 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 themselves.
28. 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.
29. 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.
30. NEVER USE NAILER FOR APPLICATIONS OTHER
THAN THOSE SPECIFIED IN THIS MANUAL.
31. 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.
32. MAINTAIN NAILER WITH CARE.
Keep the Nailer clean and lubricated for better and
safer performance.
33. 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.
Never modify or alter a nailer. Doing so may cause it
to malfunction and personal injuries may result.
IMPORTANT SAFETY INSTRUCTIONS FOR USING
NV83A2 • NV65AC • NV50A1 COIL NAILER
1. DO NOT REMOVE DUST COVER.
Fragments of wire collating fasteners can fly out.
WARNING
2. 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.
— 6 —
SAFETY — Continued
WARNING
EMPLOYER’S RESPONSIBILITIES
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 PROTECTION.
3. Enforce the use of EYE PROTECTION by operators and
others in work area.
SAVE THIS MANUAL AND
KEEP IT AVAILABLE FOR OTHERS!
4. Keep Nailers in safe working order.
5. Maintain Nailers properly.
6. Ensure that Nailers which require repair are not
further used before repair.
— 7 —
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
<NV83A2>
Exhaust Cover
Piston
<NV65AC>
Piston
Piston O-ring
Driver Blade
Push Lever
Firing Head (Outlet)
Piston O-ring
Driver Blade
Push Lever
Nose
Nose
Firing Head
(Outlet)
Exhaust Cover
Knob
Dust Cover
Dust Cover
Body
Trigger
Trigger
Cap
Nail Holder
Feeder
Air Plug
(Sold separately)
Magazine
Magazine Assembly
Magazine Cover
Body
Cap
Air Plug (Sold separately)
Magazine Stopper
Magazine Assembly
Nail Holder
Magazine Cover
Section A-A
Main nail stopper
Feeder
Feed piston
Section A-A
Main Nail Stopper
Feeder
Feed Piston
Nail guide
Feed spring
Nail Guide
Feed Spring
<NV50A1>
Exhaust Valve
Piston
Piston O-ring
Driver Blade
Nose
Push Lever
Firing Head (Outlet)
Exhaust Cover
Dust cover
Trigger
Feeder
Body
Cap
Air Plug (Sold separately)
Magazine Stopper
Magazine Assembly
Magazine Cover
Nail Holder
— 8 —
Section A-A
Main Nail Stopper
Feeder
Feed Piston
Nail Guide
Feed Spring
SPECIFICATIONS
Model NV83A2 NV65AC NV50A1
Operating pressure 70 – 120 psi (4.9 – 8.3 bar 5 – 8.5 kgf/cm2)
Dimensions 11-13/32" × 13-11/16" × 5-13/32" 11-13/32" × 12-17/32" × 5-13/32" 9-27/32" × 10-3/8" × 4-11/16"
Length × Height × Width (290 mm × 348 mm × 135 mm) (290 mm × 318 mm × 135 mm) (250 mm × 264 mm × 119 mm)
Weight 8.2 lbs (3.7 kg) 7.5 lbs (3.4 kg) 4.2 lbs (1.9 kg)
Nail capacity 200 – 300 nails (1 coil) 250 – 300 nails (1 coil) 400 nails (1 coil)
3
/cycle at 100 psi .075 ft3/cycle at 100 psi .035 ft3/cycle at 100 psi
.084 ft
Air consumption (2.4 ltr/cycle at 6.9 bar) (2.1 ltr/cycle at 6.9 bar) (.99 ltr/cycle at 6.9 bar)
(2.4 ltr/cycle at 7 kgf/cm2) (2.1 ltr/cycle at 7 kgf/cm2) (.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.
NV83A2 NV65AC NV50A1
Min. Max. Min. Max. Min. Max.
.236” .283” .245” .266” .189” .189”
(6 mm) (7.2 mm) (6.2 mm) (6.8 mm) (4.8 mm) (4.8 mm)
English
2” (50 mm)
3-1/4” (83 mm)
.099” .131” (2.8 mm)
(2.5 mm) (3.3 mm)
Nails are collated and coiled, as shown in the above figue.
1-3/4” (45 mm)
.
090”
(2.3 mm)
Dimensions of nails
2-1/2” (65 mm)
.111”
1-1/4” (32 mm)
.083”
(2.1 mm)
2” (50 mm)
.083”
(2.1 mm)
ACCESSORIES
WARNING
䢇 Accessories other than those shown below can lead to malfunction and resulting injuries.
STANDARD ACCESSORIES
1
Model NV83A2 NV65AC NV50A1
1 Eye protector 1 1 1
2 Allen wrench for M8 screw 1 1
3 Allen wrench for M6 screw 1 1
4 Allen wrench for M5 screw 1 1 1
5 Allen wrench for M4 screw 1
2
3
4
5
Wire-collated coil nails
— 9 —
English
OPTIONAL ACCESSORIES
... sold separately
䡬 Sequential Trip Mechanism Kit (Code No. 876762)
(Single Shot Parts)
䡬 Pneumatic Tool Lubricant
.8 oz. (25 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
<NV83A2, NV65AC>
䡬 Construction wooden work such as floor and wall
framing, roof decking, subflooring.
䡬 Mobile and modular home construction.
䡬 Making wooden boxes, palletes, and drums.
䡬 Packing operations in manufacturing plants, and other
types of packing and crating work in general.
<NV50A1>
䡬 Making wooden boxes, and light pallets.
䡬 Making wooden furniture, wooden sash, and other
wooden products.
䡬 Packing operations in manufacturing plants, and other
types of packing and crating work in general.
䡬 Construction work in general such as prefabricated
houses.
NOTE:
䡬 Aluminium nails may bend when used on hard
surfaces.
Test before use.
BEFORE OPERATION
Read section titled “SAFETY” (pages 4 – 7).
Make sure of the followings before operation.
WORKING ENVIRONMENT
WARNING
䢇 No flammable gas, liquid or other flammable
objects at worksite.
䢇 Clear the area of children or unauthorized
personnel.
AIR SUPPLY
DANGER
䢇 NEVER use oxygen or
other bottled gases.
Explosion may occur.
WARNING
䢇 Never connect Nailer to pressure which
potentially exceeds 200 psi (13.7 bar 14 kgf/cm
䢇 Never use non relieving coupler on Nailer.
1. Power source
䡬 Use only clean, dry, regulated compressed air as a
power source for this Nailer.
䡬 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.”
䡬 Moisture or oil in the air compressor may accelerate
wear and corrosion in the Nailer.
Drain daily.
2. Filter-Regulator-Lubricator
䡬 Use a regulator with a pressure range of 0 – 120 psi
(0 – 8.3 bar 0 – 8.5 kgf/cm
䡬 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.
2
).
2
).
— 10 —
Nailer Side
Regulator
Compressor Side
Filter
Lubricator
English
3. Air hose
Air hose must have a minimum working pressure
rating of 150 psi (10.4 bar 10.6 kgf/cm
maximum pressure produced in the system,
whichever is higher.
2
) or 150% of the
4. Hose coupling
䡬 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.
Dust Cap
3/8 NPT Male Plug
䡬 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.
5. Air consumption
Using the Air consumption table and the Air
compressor size formula, find a correct compressor
size.
Air consumption table
psi 80 90 100
Operating pressure (bar) (5.5) (6.2) (6.9)
(kgf/cm2) (5.6) (6.3) (7)
NV83A2
Air consumption
ft3/cycle
(ltr/cycle)
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 (NV83A2) operating at 100 psi
driving 30 nails per minute
Amount of air required
=2 × 30 × .084 (2.4) × 1.2
=6.0 CFM (ft
After making the calculations as shown above, you
should find a compressor providing 6.0 CFM of air
that is required.
3
/min) (173 ltr/min)
NV65AC
NV50A1
.062 .073 .084
(1.8) (2.1) (2.4)
.048 .061 .075
(1.4) (1.7) (2.1)
.025 .030 .035
(.71) (.85) (.99)
LUBRICATION
It is important that the Nailer be properly lubricated.
Without proper lubrication, the Nailer will not work
properly and parts will wear prematurely.
䡬 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.
䡬 Filter-regulator-lubricator units should always be
used.
Keep the lubricator filled with Hitachi pneumatic tool
lubricant.
䡬 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
䡬 Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area until beginning the
work.
䡬 If the Nailer is already cold, bring it in a warm area
and allow the Nailer to warm up before use.
1 Reduce the air pressure to 64 psi (4.4 bar
4.5 kgf/cm
2 Remove all nails from the Nailer.
3 Connect the air hose and free-fire (blank-fire) the
Nailer.
The lowered air pressure will be enough to freefire the Nailer.
Slow speed operation tends to warm up the
moving part.
2
).
CAUTION
䢇 Do not free-fire the Nailer at high pressure.
TESTING THE NAILER
DANGER
䢇 Operators and others in
work area MUST wear
safety glasses with side
shields which conforms to
ANSI Z87.1 specifications.
WARNING
䢇 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.
— 11 —
English
(1) DISCONNECT AIR HOSE FROM NAILER.
REMOVE ALL NAILS FROM NAILER.
䡺 ALL SCREWS MUST BE TIGHTENED.
If any screws are loose, tighten them.
䡺 THE PUSH LEVER AND TRIGGER MUST MOVE
SMOOTHLY.
Trigger
Push Lever
Do not connect
air hose
(3) With finger off the trigger, depress the push lever
against the workpiece.
䡺 THE NAILER MUST NOT OPERATE.
Depress Push Lever
Do not pull Trigger
(4) Without touching the trigger, depress the push lever
against the workpiece.
Pull the trigger.
䡺 THE NAILER MUST OPERATE
(5) With the Nailer off the workpiece, pull the trigger.
Depress the push lever against the workpiece.
(2) Adjust the air pressure to 70 psi (4.9 bar 5 kgf/cm
Connect the air hose.
Do not load any nails in the Nailer.
䡺 THE NAILER MUST NOT LEAK AIR.
Hold the Nailer downward and pull the trigger.
䡺 THE NAILER MUST NOT OPERATE.
Pull Trigger
䡺 THE NAILER MUST OPERATE.
(6) If no abnormal operation is observed, you may load
2
).
nails in the Nailer.
Drive nails into the workpiece that is the same type to
be used in the actual application.
䡺 THE NAILER MUST OPERATE PROPERLY.
ADJUSTING AIR PRESSURE
WARNING
䢇 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.
— 12 —
English
LOADING NAILS
WARNING
䢇 When loading nails into Nailer,
1) do not pull trigger;
2) do not depress push lever; and
3) keep Nailer pointed downward.
<NV83A2>
(1) Grip the nail guide and knob with finger.
Press the knob down and swing the nail guide open.
And open the magazine cover.
Knob
Nail guide
Magazine cover
(3) Place the nail coil into the magazine.
Uncoil enough nails to reach the driving hole.
Magazine
(4) 1 Uncoil enough nails to reach the driving hole.
2 Insert the first nail into the driving hole and the
second nail between the two pawls of the feeder.
3 Fit the nail heads in the guide slot.
Driving hole
First nail
Nail Guide
Nails
2
Nail holder
Guide slot
3
4
1
(2) Adjust the position of the plate according to the nail
length.
The nail will not feed smoothly if the plate is not
correctly adjusted.
Magazine
Nail holder
NOTE: Before loading nails in the magazine, adjust
the plate. If the magazine cover is forcibly
closed without adjusting the plate correctly,
the nail holder may be damaged.
1 Turn the nail holder about 90 degrees
counterclockwise.
2 Slide in vertical direction possible.
Lift or lower the nail holder to accept different
length nails.
3 Adjust the plate to the nail length reference points
on the magazine cover and turn the nail holder 90
degrees clockwise until you hear "click".
Magazine cover
Guide surface
2
Feeder
4 Pulling the nails to the right, swing the nail guide
closed.
(5) Close the magazine cover first and swing the nail
guide closed.
(6) Lock the knob correctly.
Knob
Nail guide
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.
Magazine cover
1
2
/4" 23/8"
1
2
/2" 23/4"
3" 3
2"
1
/4"
Magazine
2
3
Nail holder
1
— 13 —
English
<NV50A1•NV65AC>
(1) Press the magazine stopper and open the magazine
cover.
Magazine Stopper
Magazine Cover
(2) <NV50A1>
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.
1 Lift the nail holder.
2 Turn the nail holder to align the mark with the
numbers (1-1/4"(32 mm), 1-1/2"(38 mm), 1-3/4"(45
mm), 2"(50 mm) on the magazine cover.
For 1-1/4"(32 mm)
For 1-1/2"(38 mm)
For 1-3/4" and 2"
(45 mm and 50 mm)
(4) Close the magazine cover.
(5) Grip the nail guide and knob with finger.
Press the knob down and swing the nail guide open.
Knob
Nail Guide
(6) 1 Uncoil enough nails to reach the driving hole.
2 Insert the first nail into the driving hole and the
second nail between the two pawls of the feeder.
3 Fit the nail heads in the guide slot.
FirstNail
Nail Guide
Driving Hole
2
Guide Slot
3
4
1
Magazine Cover
Nail Holder
NOTE: Before loading nails in the magazine, adjust
the plate. If the magazine cover is forcibly
closed without adjusting the nail holder
correctly, the nail holder may be damaged.
(3) Place the nail coil into the magazine.
Insert the first nail into the magazine opening.
Magazine Opening
First Nail
Magazine
Mark
Guide Surface
2
Feeder
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.
4 Pulling the nails to the right, swing the nail guide
closed.
(7) Lock the knob completery.
NAILER OPERATION
Read section titled “SAFETY” (pages 4 – 7).
DANGER
䢇 Operators and others in
work area MUST wear
safety glasses with side
shields which conforms
to ANSI Z87.1
specifications.
Nail
— 14 —
WARNING
English
(1) Intermittent operation (Trigger fire)
1 Position the nail outlet on the workpiece with
finger off the trigger.
2 Depress the push lever firmly until it is completely
depressed.
3 Pull the trigger to drive a nail.
4 Remove finger from the trigger.
To drive another nail, move the Nailer along the
workpiece and repeat this procedure.
䢇 NEVER point tool at yourself or others in work
area.
䢇 Keep fingers AWAY from trigger when not driving
nails to avoid accidental firing.
䢇 Choice of triggering method is important.
Please read and understand “METHODS OF
OPERATION” found below.
䢇 Never place your hands or feet closer than 8
inches (200 mm) from firing head when using.
䢇 Do not drive nails on top of other nails or with
Nailer at too steep of an angle; nails can ricochet
and hurt someone.
䢇 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.
䢇 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.
䢇 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.
䢇 Never use Nailer which is defective or operating
abnormally.
䢇 Do not use Nailer as hammer.
䢇 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.
Trigger
3
2
Push Lever
(2) Continuous operation (Push lever fire)
1 Pull the trigger with the Nailer off the workpiece.
2 Depress the push lever against the workpiece to
drive a nail.
3 Move 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.
Previously pull
the trigger
1
3
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 876762.
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".
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):
WARNING
䢇 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.
䢇 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.
䢇 Some types of loaded nails can spark out of the
muzzle during a nail driving operation. Exericise
caution!
— 15 —
English
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
position) where you want 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
reduse 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 reduse the speed of operation
compared to the standard contact trip mechanism.
NOTE:
䢇 Both STANDARD CONTACT TRIP MECHANISM and
OPTIONAL SEQUENTIAL TRIP MECHANISM are safe
if used as described above and according to all
warnings and instructions.
䢇 Always handle nails and package carefully.
If dropped, the collated nails may break or come
loose. In such cases, do not use the nails because, if
used in that condition, nail feed may become faulty
and result in missed nails or jamming of the nails.
䢇 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.
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.
<NV83A2>
If nails are driven too deep or shallow into the workpiece,
adjust the nailing depth in the following order.
1 DISCONNECT AIR HOSE FROM NAILER
2 If nails are driven too deep, turn the adjuster to the
shallow side.
If nails are driven too shallow, turn the adjuster to the
deep side.
3 Stop turning the adjuster when a suitable position is
reached for a nailing test.
4 Connect the air hose.
ALWAYS WEAR EYE PROTECTION.
Perform a nailing test.
5 DISCONNECT AIR HOSE FROM NAILER.
6 Choose a suitable position for the adjuster.
DeepShallow
15
Disconnect
air hose
Adjuster
Too deepFlush
Too shallow
— 16 —
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.
English
MAINTENANCE AND INSPECTION
Read section titled “SAFETY” (pages 4 – 7).
WARNING
䢇 Disconnect air hose and remove all nails from
Nailer when:
1) doing maintenance and inspection; and
2) clearing a jam.
1. Clearing a jam
Remove a jammed nail in the following order :
1 DISCONNECT AIR HOSE.
2 Open the nail guide.
3 Insert a rod into the outlet.
Tap the rod with a hammer.
Hammer
Rod
Outlet
2. Inspecting the push lever
1 DISCONNECT AIR HOSE.
2 Clean the push lever sliding part.
Lubricate it with Hitachi pneumatic tool lubricant.
Lubricate
3. Inspecting the feeders
1 DISCONNECT AIR HOSE.
2 Clean the knob sliding part.
Lubricate it with Hitachi pneumatic tool lubricant.
1
Disconnect
air hose
1
Disconnect
air hose
4 Remove the jammed nail with a slotted screw
driver.
Nail
Slotted Screw Driver
5 Cut the deformed collated wire with nippers.
Correct the deformation.
6 In case of frequent jam, contact a Hitachi
authorized service center.
— 17 —
Nail
Guide
1
Push Lever
3 Open the nail guide and remove dust.
Lubricate the sliding groove of the feeder and shafts.
Nail Guide
Main Nail Stopper
Sub Nail Stopper
4 Lubricate the feeding surfaces of the nose and the
nail guide after cleaning.
This promotes smooth operation and prevents rust.
Knob
Feeder
Disconnect
air hose
Nose Opening
Feeder Shaft
English
CAUTION
䢇 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.
4. Inspecting the magazine
1 DISCONNECT AIR HOSE.
2 Clean the magazine. Remove dust or wooden tips
which may have accumulated in the magazine.
5. Storing
䡬 When not in use for an extended period, apply a
thin coat of the lubricant to the steel parts to
avoid rust.
䡬 Do not store the Nailer in a cold weather
environment.
Keep the Nailer in a warm area.
䡬 When not in use, the Nailer should be stored in a
warm and dry place.
Keep out of reach children.
6. WARNING LABEL
Change the WARNING LABEL if missing or damaged.
A new WARNING LABEL is available from a Hitachi
authorized service center.
9. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
䢇 Repair, modification and inspection of Hitachi Power
Tools must be carried out by an Hitachi Authorized
Service Center.
This Parts List will be helpful if presented with the
tool to the Hitachi Authorized Service Center when
requesting repair or other maintenance. In the
operation and maintenance of power tools, the safety
regulations and standards prescribed in each country
must be observed.
MODIFICATIONS:
Hitachi Power Tools are constantly being improved and
modified to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or design)
may be changed without prior notice.
SERVICE AND REPAIRS
Warning
Label
7. Maintenance chart (See page 19)
8. Operator troubleshooting (See page 19)
WARNING
䢇 Only service personnel trained by Hitachi,
distributor or employer shall repair the Nailer.
䢇 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 —
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