Hitachi Koki NR 90AE Instruction Manual

HITACHI
Instruction and safety manual
Manuel d'instructions et de securite
Instrucciones y manual de seguridad
Model Nailer
Modele NR 90AD NR 90AE Cloueur
Modelo Clavador
ADANGER
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.
ADANGER
Une utilisation incorrecte et sans respecter la security de ce cloueur risque d'entrafner
la mort ou des blessures graves I
Ce manual renferme des instructions importantes sur la securite de I'outii.
Lire et bien assimiler ce manuel avant d'utiliser le cloueur.
Ne jamais laisser les personnes n'ayant pas 6tutdi6 le manuel utiliser I'outii.
APELIGRO
{La utilizacidn inadecuada e insegura de este clavador puede resultar en lesiones serias
o en la muerte!
Este manual contiene informacidn importante sobre la seguridad del producto.
Lea y entienda este manual antes de utilizer el clavador.
No deje manejar esta herramienta a nadie que no haya leido este manual.
Hitachi Koki

English
CONTENTS
Page
IMPORTANT INFORMATION.3
DEFINITIONS OF SIGNAL WORDS.3
EXPLANATION OF THE NAILING ACTION
OF THE HITACHI NAILER.3
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS.4
EMPLOYER'S RESPONSIBILITIES.6
OPERATION
NAME OF PARTS.7
SPECIFICATIONS.8
NAIL SELECTION.8
ACCESSORIES..8
STANDARD ACCESSORIES.8
OPTIONAL ACCESSORIES.9
APPLICATIONS.9
Page
BEFORE OPERATION.9
WORKING ENVIRONMENT.9
AIR SUPPLY.9
LUBRICATION.10
COLD WEATHER CARE.10
TESTING THE NAILER.10
ADJUSTING AIR PRESSURE.11
LOADING NAILS.12
NAILER OPERATION.13
METHODS OF OPERATION.13
ADJUSTING THE NAILING DEPTH.15
MAINTENANCE
MAINTENANCE AND INSPECTION.16
SERVICE AND REPAIRS.16
PARTS LIST.52
Frangais
TABLE DE MATIERES
Page
INFORMATION IMPORTANTE.18
DEFINITION DES MOTS DE SIGNALISATION .18
EXPLICATION DE L'ACTION DE CLOUAGE DU
CLOUEUR HITACHI. 18
SECURITE
CONSIGNES DE SECURITE IMPORTANTES
POUR L'UTILISATION DU CLOUEUR.19
RESPONSABILITES DE L'EMPLOYEUR.21
UTILISATION
NOM DES PIECES.22
SPECIFICATIONS.23
SELECTION DES CLOUS.23
ACCESSOIRES.23
ACCESSOIRES STANDARD.23
ACCESSOIRES EN OPTION.24
APPLICATIONS.24
Page
AVANT L'UTILISATION.24
ENVIRONNEMENT DE TRAVAIL.24
ALIMENTATION D'AIR.24
GRAISSAGE.25
ENTRETIEN PAR TEMPS FROID.25
ESSAIDU CLOUEUR.25
REGLAGE DE LA PRESSION D'AIR.26
CHARGEMENT DES CLOUS.27
UTILISATION DU CLOUEUR.28
METHODES D’UTILISATION.28
REGLAGE DE LA PROFONDEUR DE CLOUAGE.30
ENTRETIEN
ENTRETIEN ET INSPECTION.31
ENTRETIEN ET REPARATIONS.32
LISTE DES PIECES.52
Espanol
INDICE
Pagina
INFORMACION IMPORTANTE.34
DEFINIClON DE LAS PALABRAS CLAVE.34
EXPLICACION LA ACCION DE CLAVADO DEL
CLAVADOR HITACHI.34
SEGURIDAD
INSTRUCCIONES IMPORTANTES DE SEGURIDAD PARA
LA UTILIZACION DEL CLAVADOR.35
RESPONSABILIDADES DEL EMPRESARIO.38
operaciOn
NOMENCLATURA.39
ESPECIFICACIONES.40
SELECCION DE CLAVOS.40
ACCESORIOS.40
ACCESORIOS ESTANDAR.40
ACCESORIOS OPCIONALES.41
APLICACIONES.41
Pagina
ANTES DE LA OPERACION.41
ENTORNO DE TRABAJO.41
SUMINISTRO DE AIRE.41
LUBRICACION.42
CUIDADOS PARA CLIMAS FRiOS.42
PRUEBA DEL CLAVADOR.42
AJUSTE DE LA PRESION DE AIRE.43
CARGA DE CLAVOS.44
OPERACION DEL CLAVADOR.44
MtrODOS DE OPERACION.45
AJUSTE DE LA PROFUNDIDAD DE CLAVADO.47
MANTENIMIENTO
MANTENIMIENTO E INSPECCION .48
SERVICIO Y REPARACIONES.49
LISTADE PIEZAS.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.
EXPLANATION OF THE NAILING ACTION OF THE HITACHI NAILER
O SINGLE ACTUATION MECHANISM (SINGLE SEQUENTIAL ACTUATION MECHANISM):
First, press the push lever against the workpiece; next, pull the trigger to drive the nail.
First, pull the trigger; next, press the push lever against the workpiece to drive the nail.
After nailing once, nailing will not be possible again until the trigger is released and pressed again.
O CONTACT ACTUATION MECHANISM:
First, press the push lever against the workpiece; next pull the trigger to drive the nail.
First, pull the trigger; next, press the push lever against the workpiece to drive the nail.
If the trigger is held back, a nail will be driven each time the push lever is pressed against the workpiece.
O FULL SEQUENTIAL ACTUATION MECHANISM;
First, press the push lever against the workpiece; next, pull the trigger to drive the nail. Follow the same sequence to
continue driving nails.
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English
SAFETY
IMPORTANT SAFETY INSTRUCTIONS
FOR USING NAILERS
READ ALL INSTRUCTIONS
ADANGER
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 GASSES. 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 FASTENERS 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.
Read and understand section titled "METHODS OF OPERATION". 13 - 14)
6. DO NOT EXCEED 120 psi. (8.3 bar 8.5 kgf/cm^
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^ as the Nailer can burst
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 otyects.
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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 couplingjoint 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 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.
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. BEFORE STARTING WORK, CHECK THE NAILING
OPERATION SWITCHING DEVICE.
This Hitachi nailer includes a nailing operation
switching device.
Before starting work, check the setting of the
operation switching device.
If the switching device is not set properly, the nailer
will not operate correctly.
20. 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,
O Intermittent operation (Trigger firing)
1) Set the switching device to SINGLE ACTUATION
MECHANISM.
2) Pull the trigger rapidly and firmly.
O Continuous operation (Push lever firing)
1) Do not press the nailer against the wood with
excessive force.
2) Separate the nailer from the wood as it recoils after
nailing.
21. 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.
22. 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.
23. 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.
24. NEVER CARRY NAILER BY HOSE.
5 —

English
25. DO NOT OVERREACH.
Keep proper footing and balance at all times.
26. 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.
27. DO NOT DISCONNECT AIR HOSE FROM NAILER
WITH FINGER ON TRIGGER.
The Nailer can fire when re-connected to an air supply.
28. 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 ajam 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.
29. 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.
30. 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.
31. NEVER USE NAILER FOR APPLICATIONS OTHER
THAN THOSE SPECIFIED IN THIS MANUAL.
32. 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.
33. MAINTAIN NAILER WITH CARE.
Keep the Nailer clean and lubricated for better and
safer performance.
34. 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.
35. NEVER MODIFY OR ALTER A NAILER.
Doing so may cause it to malfunction and personal
injuries may result.
EMPLOYER'S RESPONSIBILITIES
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.
SAVE THIS MANUAL AND
KEEP IT AVAILABLE FOR OTHERS!
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English
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
Nailing operation switching device
Upward position
Switching
Device
Switching
’ 5 ^ Device
^1 Downward
position
SINGLE ACTUATION
MECHANISM
(Switching device:
upward position)
CONTACT ACTUATION
MECHANISM
(Switching device:
downward position)
Head Guard
— 7

English
_I
SPECIFICATIONS
Model NR90AD NR90AE
Operating pressure
70 -120 psi (4.9 - 8.3 bar 5 - 8.5 kgf/cm^)
Dimensions
18-3/16" X 1 2-11/16" X 4-15/16"
20-3/4" X 12-11/1 6" X 4-15/1 6"
Length x Height x Width
(462 mm x 322 mm x 125 mm) (527 mm x 322 mm x 125 mm)
Weight
7.0 lbs (3.2 kg)
7.5 lbs (3.4 kg)
Nail capacity
50 - 74 nails (2 strips) 64 - 70 nails (2 strips)
.088 ftVcycle at 100 psi
Air consumption
(2.5 Itr/cycle at 6.9 bar)
(2.5 Itr/cycle at 7 kgf/cm^)
Air inlet
3/8 NPT Thread
NAIL SELECTION
AWARNING
# Be sure to use only the genuine HITACHI nails for the NR90AD. The use of any other nails can result in tool
malfunction and/or nail breakdown, leading to serious injuries.
Only nails shown in the Table below can be driven with this Nailer.
Paper collated strip nails
Clipped-head nails
NR90AD
Min.
.266"
Max.
.303"
Plastic-collated strip nails
Full-head nails
(6.8 mm)
(7.7 mm)
NR90AE
Min.
.286"
(7 mm)
Max.
.3"
(7.6 mm)
.113” .148”
(2.9 mm) (3.8 mm)
.113" .148"
(2.9 mm) (3.8 mm)
ACCESSORIES
ADANGER
• Accessories other than those shown below can lead to malfunction and resulting injuries.
STANDARD ACCESSORIES
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English
OPTIONAL ACCESSORIES
... sold separately
O Pneumatic Tool Lubricant
.8 oz. (25 cc) oil feeder (Code No. 877153)
4 oz. (120 cc) oil feeder (Code No. 874042)
1 quart (1 Itr) can (Code No. 876212)
NOTE: Accessories are sulyect to change without any
obligation on the part of HITACHI.
APPLICATIONS
O Floor and wall framing.
O Truss build-up, Window build-up.
O Subflooring and roof decking.
O Wall sheathing.
O Mobile home and modular housing construction.
BEFORE OPERATION
Read section titled "SAFETY" (pages 4 - 6).
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
ADANGER
• NEVER use oxygen or
other bottled gases.
Explosion may occur.
AWARNING
• Never connect Nailer to pressure which potentially
exceeds 200 psi (13.7 bars 14 kgf/cm^).
# Never use non relieving coupler on Nailer.
1. P ower source
O Use only clean, dry, regulated compressed air as a
power source for this Nailer.
O 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".
O Moisture or oil in the air compressor may accelerate
wear and corrosion in the Nailer.
Drain daily.
2. F ilter-Regulator-Lubricator
O Use a regulator with a pressure range of 0 -120 psi
(0-8.3 bar 0 - 8.5 kgf/cm^).
O Filter-regulator-iubricator 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.
Nailer Side
3. Air hose
Air hose must have a minimum working pressure
rating of 150 psi (10.4 bar 10.6 kgf/cm^ or 150% of the
maximum pressure produced in the system, whichever
is higher.
4. Hose coupling
O The Nailer can be installed as follows:
Remove the dust seal placed at the air inlet.
Install a 3/8 NPT male plug at the air inlet.
O 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.
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English
5. Air consumption
Using the Air consumption table and the Air compressor
size formula, find a correct compressor size.
Air consumption table
psi
Operating pressure (bar)
(kgf/cm^)
80
(5.5)
(5.6)
90
(6.2)
(6.3)
100
(6.9)
0 )
Air consumption ftYcycle
(Itr/cycle)
.062
(1.7)
.075
(2.1)
.088
(2.5)
Air compressor size formula
Amount of air required
^number of Nailers
X average nails driven each minute per Nailer
X air consumption at given air pressure
X safety factor (always 1.2)
Example: 2 Nailers operating at 100 psl driving 30
nails per minute
Amount of air required
=2 X 30 X. 088 (2.5) X 1.2
=6.3 CFM (ftVmin) (180 Itr/min)
After making the calculations as shown above, you
should find a compressor providing 6.3 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.
O Use Hitachi pneumatic tool lubricant.
Do not use detergent oil or additives. These lubricants
will harm the 0-rings and other rubber parts. This will
cause the Nailer to malfunction.
O Fllter-regulator-lubricator units should always be used.
Keep the lubricator filled with Hitachi pneumatic tool
lubricant.
O 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
O Do not store the Nailer in a cold weather environment.
Keep the Nailer In a warm area until beginning the
work.
O If the Nailer Is already cold, bring it in a warm area and
allow the Nailer to warm up before use.
© Reduce the air pressure to 64 psl (4.4 bar
4.5 kgf/cm^.
© Remove all nails from the Nailer.
© Connect 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.
TESTING THE NAILER
ADANGER
0
• Operators and others in
work area MUST wear
safety glapsses with side
shields which conforms to
ANSI Z87.1
specifications.
AWARNING
# Never use Nailer unless push lever is operating
properly.
Before actually beginning the nailing work, test the Nailer
by using the checklist 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.
Trigger
Push Lever
A CAUTION
• Do not free-fire the Nailer at high pressure.
(2) Adjust the air pressure to 70 psl (4.9 bars 5 kgf/cm^).
Connect the air hose.
Do not load any nails in the Nailer.
Set the switching device to the upward position
(SINGLE ACTUATION MECHANISM).
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English
(Set the switching device to the upward position
completely as shown in the diagram. Otherwise, it will
not operate properly.)
□ THE NAILER MUST NOT LEAK AIR.
(3) R emove the finger from the trigger and press the push
lever against the workpiece.
n THE NAILER MUST NOT OPERATE.
□ The nailer will remain in operated status (the driver
blade will remain at the bottom).
® Remove the finger from the trigger.
□ Nailer operation will end (the driver blade will
return to the top).
(6) Set the switching device to the downward position
(CONTACT ACTUATION MECHANISM).
(Set die switching device to the downward position
completely as shown in the diagram. Otherwise, it will
not operate properly.)
With the Nailer off the workpiece, pull the trigger.
Depress the push lever against the workpiece.
□ THE NAILER MUST OPERATE.
(7) 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.
(4) S eparate the push lever from the workpiece.
Next, point the nailer downward, pull the trigger and
then wait in that position for 5 seconds or longer.
□ THE NAILER MUST NOT OPERATE.
(5) ( T) Without touching the trigger, depress the push lever
against the workpiece.
Pull the trigger.
n THE NAILER MUST OPERATE.
□ THE NAILER MUST OPERATE PROPERLY.
ADJUSTING AIR PRESSURE
^^WARNING
• Do not exceed 120 psi (8.3 bars 8.5 kgf/cm^.
Adjust the air pressure at recommended operating pressure
70-120 psi (4.9 - 8.3 bar 5 - 8.5 kgf/cm^) 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.
d) Hold the trigger back while separating the push
lever from the workpiece.
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English
LOADING NAILS
^WARNING
• When loading nails into Nailer,
1) do not depress trigger;
2) do not depress push lever; and
3) keep Nailer pointed downward.
(1) Insert nail strip into the back of the magazine.
Magazine
NOTE:
• Quietly push the Nall Feeders (A) and (B) against the nail.
If the Nail Feeders (A) and (B) are released from
backward the magazine and bumped against the nail,
the connecting paper of the nail can be damaged.
# Use nail strip of more than 5 nails.
The Nailer is now ready to operate.
Removing the nails:
0 Pull the nail feeder (B) backward.
0 Return the nail feeder (B) forward quietly while
pushing the nail feeder (A).
d) Push the nail stopper toward the magazine side, and
pull out nails from the back of the magazine.
12 —

English
NAILER OPERATION
Read section titled "SAFETY"(pages 4 - 6).
ADANGER
# Operators and others in
work area MUST wear
safety glasses with side
shields which conforms to
ANSI Z87.1
specifications.
AWARNING
# NEVER point tool at yourself or others in work
area.
# Keep fingers AWAY from trigger when not driving
nails to avoid accidental firing.
# Choice of triggering method is important.
Please read and understand "Methods of
Operation" below.
# Before starting work, check the nailing operation
switching device.
This Hitachi nailer includes a nailing operation
switching device.
Before starting work, make sure that the
switching device is properly set.
If the switching device is not set properly, the
nailer will not operate correctly.
# Never place your hands or feet closer than 8
inches (200 mm) from firing head when using.
# Do not drive nails on the top of other nails or with
Nailer at too steep of an angle; nails can ricochet
and hurt someone.
# 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.
# 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.
This Hitachi nailer is equipped with a nailer operation
switching device.
Use SINGLE ACTUATION MECHANISM or CONTACT
ACTUATION MECHANISM in accordance with the work to
be performed.
Explanation of the various nailing operations
O SINGLE ACTUATION MECHANISM (SINGLE
SEQUENTIAL ACTUATION MECHANISM): First, press
the push lever against the workpiece; next, pull the
trigger to drive the nail.
First, puli the trigger; next, press the push lever against
the wor1<piece to drive the nail.
After nailing once, nailing will not be possible again
until the trigger is released and pressed again.
O CONTACT ACTUATION MECHANISM: First, press the
push lever against the workpiece; next, pull the trigger
to drive the nail.
First, pull the trigger; next, press the push lever against
the workpiece to drive the nail.
If the trigger is held back, a nail will be driven each
time the push lever is pressed against the workpiece.
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)
Use the SINGLE ACTUATION MECHANISM setting.
AWARNING
# For intermittent operation, set the switching
device to the upward position completely, (i.e. Set
to SINGLE ACTUATION MECHANISM.)
# To avoid double firing or accidental firing due to
recoil.
1) Set the switching device to SINGLE
ACTUATION MECHANISM.
2) Pull the trigger rapidly and firmly.
© Set the switching device to the upward position (to
set to SINGLE ACTUATION MECHANISM).
(Set the switching device to the upward position
completely as shown in the diagram. Otherwise, it
will be set to CONTACT ACTUATION
MECHANISM.)
(D Position the nail outlet on the workpiece with
finger off the trigger.
(3) Depress the push lever firmly until it is completely
depressed.
@ Pull the trigger to drive a nail.
(D Remove finger from the trigger.
To continue nailing in a separate location, move the
nailer along the wood, repeating steps (g) - ® as
required.
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Trigger
(2) Continuous operation (Push lever fire)
Using CONTACT ACTUATION MECHANISM
A\NARN\m
0 To avoid double firing or accidental firing due to
recoil.
1) Do not press the nailer against the wood with
excessive force.
2) Separate the nailer from the wood as it recoils
after nailing.
© Set the switching device to the downward position
(to set to CONTACT ACTUATION MECHANISM).
(Set the switching device to the downward
position completely as shown in the diagram.
Otherwise, it will not operate properly.)
(D Pull the trigger with the Nailer off the workpiece.
@ Depress the push lever against the workpiece to
drive a nail.
@ 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.
AWARNING
# 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. This Hitachi nailer 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!
NOTE:
# If all warnings and instructions are followed, safe
operation is possible with all two systems: SINGLE
ACTUATION MECHANISM and CONTACT ACTUATION
MECHANISM.
# Always handle nails and package carefully. If nails are
dropped, collating plastic may be broken.
# 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.
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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
(requiator 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.
(D DISCONNECT AIR HOSE FROM NAILER.
(D If nails are driven too deep, turn the adjuster to the
shallow side.
Turn Adjuster
If nails are driven too shallow, turn the adjuster to the
deep side.
Turn Adjuster
Fiush
(D Stop turning the adjuster when a suitable position is
reached fora nailing test.
0 Connect the air hose.
ALWAYS WEAR EYE PROTECTOR.
Perform a nailing test.
® DISCONNECT AIR HOSE FROM NAILER.
® Choose a suitable position for the adjuster.
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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 - 6).
AWARNING
# Disconnect air hose and remove all nails from
Nailer when:
1) doing maintenance and inspection; and
2) clearing a jam.
1. I nspecting the magazine
© DISCONNECT AIR HOSE.
@ Clean the magazine. Remove paper chips or wooden
chips which may have accumulated in the magazine.
Lubricate it with Hitachi pneumatic tool lubricant
A CAUTION
• Check that the nail feeder slides smoothly by pulling it
with finger.
If not smooth, nails can be driven at an irregular angle
and hurt someone.
2. Storing
O When not in use for an extended period, apply a thin
coat of the lubricant to the steel parts to avoid rust
O Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area.
O When not in use, the Nailer should be stored in a warm
and dry place.
Keep out of reach children.
3. WARNING LABEL
Change the WARNING LABEL if missing or damaged.
A new WARNING LABEL is available from a Hitachi
authorized service center.
4. Maintenance chart (See page 17)
5. Operator troubleshooting (See page 17)
6. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
A CAUTION
• 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
AWARNING
• 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.
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L
Maintenance chart
ACTION WHY HOW
Drain air line filter daily.
Prevent accumulation of moisture
and dirt.
Open manual petcock.
Keep lubricator filled.
Keep the Nailer lubricated. Fill with Hitachi pneumatic tool
lubricant.
Clean filter element — then blow
air through filter in direction
opposite to normal flow.
Prevent clogging of filter with dirt. Follow manufacturer's instructions.
Clean magazine and feeder
mechanism.
Prevent ajam. Blow clean daily.
Keep push lever working properly.
Promote operator safety and
efficient Nailer operation.
Blow clean daily.
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.
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.
PROBLEM CHECK METHOD CORRECTION
Nailer operates, but no nail is driven.
Check for aJam. Clear ajam.
Check function of nail feeder per
page 16.
Clean and lubricate.
Ribbon spring weakened or damaged? Replace ribbon spring.
Check for proper nails. Use only recommended nails.
Weak drive.
Slow to cycle.
Check air pressure. Increase air pressure. (Do not
exceed 120 psi (8.3 bars, 8.5 kgf/cm*))
Use Hitachi pneumatic tool lubricant.
Driver blade worn?
Contact Hitachi for replacement.
Piston 0 - ring worn or damaged?
Drives too deep. Check air pressure. Reduce air pressure.
(Adjust 70-120 psi)
Skipping nails. Intermittent feed. Check for proper nails. Use only recommended nails.
Check function of nail feeder per
page 16.
Clean and lubricate.
Ribbon spring weakened or damaged? Replace ribbon spring.
Use Hitachi pneumatic tool lubricant.
Piston 0 - ring cut or heavily worn? Contact Hitachi for replacement.
Nail feeder (A) worn or damaged? Replace nail feeder (A).
Naiisjam.
Driven nail is bent.
Check for proper nails. Use only recommended nails.
Driver blade worn? Contact Hitachi for replacement.
Nail feeder (A) worn or damaged? Replace nail feeder (A).
Drives properly during normal
operation, but does not drive fully
at faster nailing speeds.
Check inside diameter of air hose. Use larger air hose.
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