Instruction and safety manual
Mode d’emploi et consignes de sécurité
Manual de instrucciones y seguridad
Model
Modèle
Modelo
N2503AF
Flooring Stapler
Brocheuse à plancher
Grapadora para pisos
DANGER
Improper use of this Stapler can result in death or serious injury!
This Manual contains important information about product safety.
Read and understand this Manual before operating the Stapler.
Never allow anyone (to handle this Stapler) who has not reviewed this manual.
L’utilisation inadéquate de cette brocheuse peut causer une blessure grave et même mortelle!
Ce manuel contient d’importantes consignes de sécurité.
Lire le manuel attentivement avant d’utiliser la brocheuse.
Ne jamais laisser une personne qui n’a pas lu le manuel utiliser la brocheuse.
¡El uso incorrecto de esta grapadora puede ocasionar lesiones graves o la muerte!
Este manual contiene información importante acerca de la seguridad del producto.
Lea y comprenda este manual antes de usar la grapadora.
No permita nunca el uso de esta grapadora por parte de alguien que no haya leído este manual.
DANGER
PELIGRO
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3
IMPORTANT SAFETY INFORMATION
Read and understand tool labels and all of the operating instructions, safety precautions and warnings in
this manual before operating or maintaining this Stapler. Failure to follow warnings could result in DEATH
or SERIOUS INJURY.
Most accidents that result from the operation and maintenance of Staplers are caused by the failure to observe basic safety rules and
precautions. An accident can often be avoided by recognizing a potentially hazardous situation before it occurs, and by observing ap-
propriate 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 Stapler
and in this Manual.
Never use this Stapler 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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4
SAFTEY
IMPORTANT SAFETY INSTRUCTIONS FOR USING STAPLERS
DANGER
1. OPERATORS AND OTHERS IN WORK AREA MUST WEAR SAFETY GLASSES WITH SIDE SHIELDS.
• Never use oxygen, combustible gases or any other bottled gases as a power source for the Stapler.
• Use of the above gases is dangerous, as the Stapler will explode.
• Use only clean, dry, regulated compressed air.
• When operating the Stapler, always wear eye safety glasses with side shields, and make sure others in the
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 Stapler operator and others in work area.
WARNING
3. NEVER POINT TOOL AT YOURSELF OR OTHERS IN WORK AREA.
• Always assume the Stapler contains fasteners.
• Never point the Stapler 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 Stapler.
• Respect the Stapler as a working implement.
4. KEEP FINGERS AWAY FROM TRIGGER WHEN NOT DRIVING STAPLES TO AVOID ACCIDENTAL FIRING.
• Never carry the Stapler with finger on trigger since you could drive a fastener unintentionally and injure yourself or someone else.
• Always carry the Stapler by the handle only.
5. CHOICE OF TRIGGERING METHOD IS IMPORTANT.
• Read and understand section titled “METHODS OF OPERATION.” (page 12)
6. DO NOT EXCEED 100 psi. (6.9 bar 7.0 kgf/cm2)
7. ALWAYS WEAR EAR AND HEAD PROTECTION.
• Always wear ear protection to protect your ears from loud noise.
• Always wear head protection conforming to ANSI Z89.1-1986 protect your head from flying objects.
2. NEVER USE OXYGEN OR OTHER BOTTLED GASES. EXPLOSION MAY OCCUR.
READ ALL INSTRUCTIONS
• Do not exceed maximum recommended air pressure 100 psi
(6.9 bar 7.0 kgf/cm2)
• Never connect the Stapler to pressure which potentially exceeds 200 psi
(13.7 bar 14 kgf/cm2) as the Stapler can burst.
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5
SAFTEY — Continued
WARNING
8. STORE STAPLER PROPERLY.
When not in use, the Stapler 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
Staplers, debris, furniture, etc.
10. NEVER USE IN PRESENCE OF FLAMMABLE
LIQUIDS OR GASES.
The Stapler produces sparks during operation. Never use the
Stapler 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 Stapler. All visitors should be kept
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 indoors. Wear protective hair
covering to contain long hair.
13. NEVER USE NON RELIEVING COUPLER ON
STAPLER.
If a non relieving coupler is used on the Stapler, the Stapler can
remain charged with air after disconnecting and thus will be able
to drive a Staple even after disconnecting. The Stapler and air
hose must have a hose coupling such that all pressure is removed
from the Stapler 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 Stapler unless the push lever is
operating properly., otherwise the Stapler 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 Stapler if parts are missing or
damaged.
16. DO NOT LOAD FASTENERS WITH TRIGGER
PULLED OR PUSH LEVER DEPRESSED.
When loading fasteners into the Stapler or when connecting the
air hose,
1) do not pull the trigger;
2) do not depress the push lever; and
3) keep the Stapler pointed downward.
17.KEEP FACE, HANDS AND FEET AWAY FROM DISCHARGE AREA
DURING USE.
Never place your face, hands or feet closer than 8 inches
(200 mm) from discharge area. A serious injury can result if the
Staples are deflected by the work piece, or are driven away from
the point of entry.
18. PLACE STAPLER PROPERLY ON WORKPIECE.
Do not drive fasteners on top of other fasteners or with the
Stapler are too steep of an angle; the Staples can ricochet and
hurt someone.
19. BE CAREFUL OF DOUBLE FIRE DUE TO RECOIL.
If the push lever is unintentionally allowed to recontact the work
piece following recoil, an unwanted fastener will be driven.
In order to avoid this undesirable double fire,
1) Do not push the Stapler on the work piece with strong force;
2) Take the Stapler completely away from the work piece using
recoil, and keep the push lever away from the work piece until
the next desirable shot; and
3) Pull the trigger and release it QUICKLY when performing inter-
mittent operation.
20. DO NOT DRIVE STAPLES INTO THIN BOARDS OR NEAR COR-
NERS AND EDGES OF WORK PIECE.
The Staples can be driven through or away from the work piece
and hit someone.
21. NEVER DRIVE STAPLES FROM BOTH SIDES OF A WALL AT THE
SAME TIME.
The Staples 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 STAPLER BY HOSE.
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6
SAFTEY — Continued
WARNING
24. DO NOT OVERREACH.
Keep proper footing and balance at all times.
25. NEVER USE STAPLER WHICH IS DEFECTIVE OR OPERATING
ABNORMALLY.
If the Stapler 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 STAPLER WITH
FINGER ON TRIGGER.
The Stapler can operate when re-connected to an air supply.
27. DISCONNECT AIR HOSE FROM STAPLER WHEN:
1) Doing maintenance and inspection;
2) Loading fasteners;
3) Clearing a jam;
4) It is not in use;
5) Leaving work area;
6) Moving it to another location;
7) Handing it to another person; and
8) Adjusting the knobs.
Never attempt to clear a jam or repair the Stapler unless you
have disconnected air hose from the Stapler and removed all
remaining Staples from the Stapler. The Stapler should never be
left unattended since people who are not familiar with the
Stapler might handle it and injure themselves.
28. STAY ALERT.
Watch what you are doing. Use common sense. Do not operate
the Stapler when you are tired. The Stapler should never be used
by you if you are under the influence of alcohol, drugs or
medication that makes you drowsy.
29. HANDLE STAPLER CORRECTLY.
Operate the Stapler according to the Manual. Never allow the
Stapler to be operated by children, individuals unfamiliar with its
operation or unauthorized personnel.
30. NEVER USE STAPLER FOR APPLICATIONS OTHER THAN
THOSE SPECIFIED IN THIS MANUAL.
31. HANDLE STAPLER CAREFULLY.
Because of high air pressure in the Stapler, cracks in the surface
are dangerous. To avoid this, do not drop the Stapler or strike the
Stapler against hard surfaces; and do not scratch or engrave signs
on the Stapler. Handle the Stapler carefully.
32. MAINTAIN STAPLER WITH CARE.
Keep the Stapler clean and lubricated for better and safer
performance.
33. USE ONLY PARTS, ACCESSORIES OR STAPLES SUPPLIED OR
RECOMMENDED BY HITACHI.
Unauthorized parts, accessories, or Staples may void your
warranty and can lead to malfunction and resulting injuries. Only
service personnel trained by Hitachi, distributor or employer shall
repair the Stapler.
34. NEVER MODIFY OR ALTER A STAPLER.
Doing so may cause it to malfunction and personal injuries may
result.
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7
SAFTEY — Continued
EMPLOYER’S RESPONSIBILITIES
1. Ensure that this MANUAL is available to operators and person-
nel performing maintenance.
2. Ensure that Staplers 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.
4. Keep Staplers in safe working order.
5. Maintain Staplers properly.
6. Ensure that Staplers which require repair are not further used
before repair.
SAVE THIS MANUAL AND
KEEP IT AVAILABLE FOR OTHERS!
WARNING
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8
OPERATION
NOTE:
The information contained in this Manual is designed to assist you in the safe operation of the Stapler.
Some illustrations in this Manual may show details or attachments that differ from those on your own Stapler.
NAME OF PARTS
BODY
TRIGGER
FOOT
NOSE
FRONT GUIDE
KNOBS
MAGAZINE
L
A
T
C
H
C
O
V
E
R
AIR PLUG
SECONDARY
TRIGGER
HANDLE CAP
PUSHER
BUMPER
DRIVER BLADE
O-RING
PISTON
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9
SPECIFICATIONS
Operating Pressure 70-100 psi (4.8-6.9 bar 4.9-7.0 kgf/cm2)
Actuation Trigger operated - Sequential
Dimensions
Length x Height x Width
10-1/8" x 9-5/8" x 2-5/16"
(257mm x 244mm x 59mm)
Weight 3.2 lbs (1.4 kg)
Staple Capacity 100 Staples
Air Consumption
.026 ft3/cycle @ 80 psi
(.74 ltr/cycle @ 5.5 bar)
(.74 ltr/cycle @ 5.6 kgf/cm2)
Air Inlet 1/4" NPT Thread
STAPLE SELECTION
WARNING
• Be sure to use only the genuine HITACHI staples for the
N2503AF. The use of any other staples can result in tool
malfunction and/or staple breakdown, leading to serious
injuries.
ACCESSORIES
WARNING
• Accessories other than those shown below can lead to
malfunction and resulting injuries.
STANDARD ACCESSORIES
2. Safety Glasses 3. Wrench Set
NOTE: Accessories are subject to change without
any obligation on the part of HITACHI.
1. Carry Case
APPLICATIONS
• TONGUE AND GROOVE FLOORING
• MOISTURE BARRIER
• SUBFLOOR
The N2503AF Pneumatic Flooring Stapler, with the standard
shoe, drives 1" Staples into the tongue and groove flooring at a
45 degree angle. The orientation of the Staple is as depicted
above.
BEFORE OPERATION
Read over section titled "SAFETY" (pages 4 - 7)
Make sure of the following before operation.
Only Staples shown in the table below can be driven with this
Stapler.
.188" (4.8mm)
20 GAUGE STAPLE MIN. MAX
1" (25mm)
.04" (.95mm)
1" (25mm)
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WORKING ENVIRONMENT
WARNING
• No flammable gas, liquid or other flammable objects at
worksite.
• Clear the area of children or unauthorized
personnel.
STAPLE APPLICATION T&G FLOORING
THICKNESS
1" STAPLE Angle fastener onto
5/8" - 3/4"
underlayment over
joist construction.
1/4", 5/16", 3/8", 7/16"
STAPLE APPLICATION CHART
1" Staple
Moisture
Barrier
Subfloor
Tongue and Groove
Flooring
1. Carrying Case
10
3) Air hose
• Air hoses should have a minimum of 150 psi (10.4 bar 10.6
kgf/cm2) working pressure rating or 150 percent of the
maximum pressure that could be produced in the air system.
The supply hose should contain a fitting that will provide
"quick disconnecting" from the male plug on the Tool.
4) Hose Coupling
• This tool uses a free-flow connector plug, 1/4 NPT. The
inside diameter should be .200" (5mm) or larger. The fitting
must be capable of discharging tool air pressure when
disconnected from the air supply.
5) Air Consumption
• The model N2503AF requires 3.1 cfm of free air to operate
at the rate of 100 fasteners per minute, at 80 psi. Take the
actual rate at which the tool will be run to determine the
amount of air required. For instance, if your fastener usage
averages 50 fasteners per minute, you need 50% of the
tool’s cfm which is required to operate the tool at 100
fasteners per minute.
6) Operating Pressure
• 70 to 100 psi. Select the operating pressure within this
range for best Staple performance. DO NOT EXCEED THIS
RECOMMENDED OPERATING PRESSURE.
LUBRICATION
Frequent, but not excessive, lubrication is required for best
performance. Oil added through the air line connection will
lubricate the internal parts. Use Air Tool Lubricant, Mobil Velocite
#10, or equivalent. Do not use detergent oil or additives as these
lubricants will cause accelerated wear to the seals and piston
cushion in the Tool, resulting in poor Tool performance and
frequent Tool maintenance.
If no airline lubricator is used, add oil during use into the air
fitting on the Tool once or twice a day. Only a few drops of oil at
a time are necessary. Too much oil will only collect inside the
Tool and will be noticeable in the exhaust cycle.
COLD WEATHER CARE
For cold weather operation, near and below freezing, the
moisture in the air line may freeze and prevent Tool operation.
We recommend the use of WINTER FORMULA Air Tool lubricant
(NEW-MATIC Winter Formula or equivalent) or permanent
anti-freeze (ethylene glycol) as a cold weather lubricant.
CAUTION: Do not store Staplers in a cold weather environment to
prevent frost or ice formation on the Staplers operating valves
and mechanisms that could cause Stapler failure.
NOTE: Some commercial air line drying liquids are harmful to
O-rings and seals – do not use these low temperature air dryers
without checking compatibility.
• Do not operate the Stapler at high pressure without
Staples
CAUTION
WARNING
• Never connect Stapler to pressure which
potentially exceeds 200 psi (13.7 bar 14 kgf/cm2).
• Never use non relieving coupler on Stapler.
2) Filter-Regulator-Lubricator
• A pressure regulator with an operating pressure of
0-125 psi (0-8.6 bar 0-8.8 kgf/cm2) is required to control
the operating pressure for safe operation of this tool. Do not
connect this tool to air pressure which can potentially
exceed 200 psi as tool may fracture or burst, possibly
causing injury.
• Filter-Regulator-Lubricator units supply an optimum
condition for the Stapler and extend the Stapler 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 Stapler. Inspect the regulator before
operation to be sure it operates properly.
Lubricator—The lubricator supplies an oil mist to the Stapler.
Inspect the lubricator before operation to be sure the supply of
lubricant is adequate. Use Hitachi pneumatic tool lubricant.
Stapler side
Lubricator
Filter
Regulator
1) Power Source
• Use only clean, dry, regulated compressed air as a power
source for this Stapler.
• Air compressors used to supply compressed air to this
Stapler 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 Stapler.
• Drain daily.
Compressor side
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AIR SUPPLY
DANGER
• NEVER use oxygen or other
bottled gases. Explosion may
occur.
11
TESTING THE STAPLER
DANGER
• Operators and others in work
area MUST wear safety glasses
with side shields which
conforms to ANSI Z87.1
specifications.
WARNING
• Never use Stapler unless push lever is working properly
Manufacturer recommends before each use, check all Screws and
Nuts to make sure they are tight and have not "jarred loose"
from vibration and use. (Shoe, Shoe Base and Pad, Magazine,
Magazine Retainer Bracket, Handle, etc.).
Manufacturer recommends before each use, check the Driver
Blade tip for deformation & breakage to prevent improper driving
of Staples and/or to prevent damage to the Stapler and Flooring.
Before actually beginning the stapling work, test the Stapler by
using the check list below.
Conduct the tests in the following order.
If abnormal operation occurs, stop using the Stapler and contact
a Hitachi authorized service center immediately.
1) Adjust the air pressure to 70psi (4.8 bar, 4.9 kgf/cm2)
Connect the air hose.
Do not load any staples in the Stapler.
The Stapler must not leak air.
2) Pull the safety trigger.
The Tool must not operate.
3) Remove the finger from the trigger and contact the push
lever.
The Tool must not operate.
4) First, pull the safety trigger. Next, contact the push lever.
The Stapler must not operate.
5) First, contact the push lever. Next, pull the trigger.
The Stapler must operate.
ADJUSTING AIR PRESSURE
WARNING
DO NOT EXCEED 100 psi. (6.9 bar 7.0 kgf/cm2)
Adjust the air pressure at recommended operating pressure
70 – 100 psi (4.9 – 6.9 bar 5 – 7.0 kgf/cm2) according to the
hardness of work piece.
The correct air pressure is the lowest pressure which will do the
job. Using the Stapler at a higher than required air pressure
unnecessarily over stresses the Stapler.
LOADING STAPLES
WARNING
When loading fasteners into the Tool,
1) Do not pull the trigger;
2) Do not depress push lever
1. DEPRESS MAGAZINE RELEASE BUTTON.
2. PULL BACK MAGAZINE.
3. OPEN MAGAZINE FULLY.
4. INSERT FASTENERS, POINTS MUST BE AGAINST BOTTOM
OF MAGAZINE.
5. PUSH MAGAZINE FORWARD. CONTINUE PUSHING UNTIL
LATCH IS ENGAGED.
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12
STAPLER OPERATION
DANGER
• Operators and others in work
area MUST wear safety glasses
with side shields which
conforms to ANSI Z87.1
specifications.
Read section titled "SAFETY" (pages 4-7)
WARNING
• Keep fingers AWAY from trigger when not driving Staples to avoid
accidental operation.
• Never place your face, hands or feet closer than 8 inches (200 mm)
from discharge area when using. The Stapler may bounce from the
recoil of driving a Staple and an unwanted second Staple may be
driven possibly causing injury.
• Check operation of the safety mechanism frequently. Do not use the
Stapler if the safety is not working correctly as accidental driving of
a Staple may result. Do not interfere with the proper operation of
the safety mechanism.
• Never clamp or tape the trigger or contact trip in an
actuated position.
• Do not drive Staples on top of other Staples or with Stapler at too
steep of an angle; Staples can ricochet and hurt someone.
• Do not drive Staples into thin boards or near corners and edges of
work piece. Staples can be driven through or away from work piece
and hit someone.
• Do not overdrive Staples. NOFMA states that one reason for split
tongues is overdriving.
• Never use Stapler which is defective or operating abnormally.
• Do not use Stapler as a hammer.
• Disconnect air hose from Stapler when:
1) It is not in use;
2) Leaving work area;
3) Moving it to another location; and
4) Handing it to another person.
• Wear safety glasses and safety shoes for protection against foreign
objects.
• Use only Staples from Hitachi.
• Air supply hoses should have a minimum working pressure rating of
150 psi or 150 percent of the maximum pressure produced in the
power source, whichever is higher.
• Check all hoses before connecting to ensure that they are free from
dirt, grit, or particles that could alter the
performance of the Stapler.
• An airline Filter and In-Line Air Regulator adjustable to 125 psi max
are required.
• NEVER use a defective Stapler. Replace worn or damaged parts
immediately. Be sure that the Safety Trigger and
operating mechanisms operate correctly and that all screws and
seals are securely tightened at all times.
• NEVER point Stapler at
yourself or others in work
area.
METHODS OF OPERATION
The Stapler is equipped with the push lever and does not operate
unless the push lever is depressed (upward position).
SEQUENTIAL TRIP SAFETY OPERATION
The model N2503AF Flooring Stapler operates on a sequential
trip system. The sequential trip system requires the operator to
hold the Tool against the work before pulling the trigger. This
makes accurate fastener placement easier. The sequential trip
allows exact fastener location without the possibility of driving a
second fastener on recoil.
SEQUENTIAL TRIP OPERATION:
1) Press the contact trip against the work surface, without
touching the trigger.
THE TOOL MUST NOT CYCLE.
2) Hold the Tool off the work surface and pull the trigger.
THE TOOL MUST NOT CYCLE.
Release the trigger. The trigger must return to the trigger stop on
the frame
3) Pull the trigger and press the contact trip against the work
surface.
THE TOOL MUST NOT CYCLE.
4) With finger off the trigger, press the contact trip against the
work surface. Pull the trigger.
THE TOOL MUST CYCLE.
DUAL TRIGGER OPERATION (PATENT PENDING)
The dual trigger feature gives you multiple options for hand
orientation and trigger actuation to allow you to choose the
actuation method that works best for you for a given application.
The following illustrations are two examples.
WARNING
• Keep your finger off the trigger except during stapling
operation, because serious injury could result if the push
lever accidentally contacts you or others in the work area.
• Keep hands and body away from the discharge area. The
Stapler may bounce from recoil of driving a fastener and
unwanted subsequent fastener may be driven, possibly
causing injury.
• Some types of loaded Staples can spark out of the muzzle
during a driving operation.
• Exercise caution!
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13
FASTENER POSITIONING ADJUSTMENT
The fastener position can be adjusted to accommodate 1/4" - 7/16" thicknesses of flooring by way of the adjustment knobs located on
the positioning shoe. The shoe adjustment feature provides close control of the fastener positioning to reduce occurrence of split tongues
or dimples in the flooring surface.
First set the air pressure for consistent drive in the specific work as described on page 11, then use the shoe adjustment knobs to set the
desired position of drive. The fastener should be positioned so that it enters the vertical face of the flooring at the point where the tongue
meets the vertical face.
TO ADJUST THE TOOL TO THE FLOORING:
1. Loosen both Knobs until the Foot and Front Guide move freely.
2. Engage the Nose with the Tongue of Flooring.
3. Push the Front Guide to the subfloor and the Foot to the flooring.
4. Tighten both Knobs.
Note: periodically check the Knobs to ensure that they are tight during use.
**Important: Test the tool on a scrap piece of flooring to ensure proper staple placement and compatibility.
ADJUSTING THE STAPLING DEPTH
Air volume is as important as air pressure. The air volume supplied to the tool may be inadequate because of undersized fittings and
hoses or from the effects of dirt and water in the system. Restricted air flow will prevent the tool from receiving an adequate volume of
air, even though the pressure reading is high. The results will be slow operation, jamming, misfeeds or reduced driving power. Before
evaluating tool problems for these symptoms, trace the air supply from the tool to the supply source for restrictive connectors, swivel
fittings, low points containing water and anything else that would prevent full volume flow of air to the tool.
Floor
Staple
• Air pressure too low.
• Staple crown above tongue.
• Increase air pressure.
• Air pressure too high
• Staple crown below tongue.
• Lower air pressure.
• Correct air pressure
• Staple just below surface
English
KNOB
NOSE
FRONT
GUIDE
SUBFLOOR
VAPOR
BARRIER
FLOOR
FOOT
TONGUE OF
FLOORING
14
MAINTENANCE
NOTE:
The information contained in this Manual is designed to assist you in the safe maintenance of the Stapler.
Some illustrations in this Manual may show details or attachments that differ from those on your own Stapler.
MAINTENANCE AND INSPECTION
Read section titled "SAFETY" (page 4-7)
WARNING
• Disconnect air hose and remove all Staples from Stapler
when:
1) doing maintenance and inspection; and
2) clearing a jam.
1) Inspecting the Magazine
• DISCONNECT THE AIR HOSE
• Clean the magazine. Remove dust or wooden tips which may
have accumulated in the magazine.
2) 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 Stapler in a cold weather environment.
When not in use, the Stapler should be stored in a warm and
dry place.
• Keep out of reach of 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 15)
5) Operator Troubleshooting (see page 16)
6) Service Parts List
• A. Item No.
• B. Code No.
• C. Description
CAUTION
Repair, modification and inspection of Hitachi Power Staplers
must be carried out by an Hitachi Authorized Service Center.
This Parts List will be helpful if presented with the Stapler to
the Hitachi Authorized Service Center when requesting repair
or other maintenance. In the operation and maintenance of
power Staplers, 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
• Only service personnel trained by Hitachi, distributor or
employer shall repair the Stapler.
• Use only Hitachi parts supplied or recommended by
Hitachi for repair.
All quality Staplers will eventually require servicing or
replacement of parts because of wear from normal use.
In order to achieve the optimal performance of the N2503AF
Pneumatic Flooring Stapler preventative maintenance is
recommended.
NOTE:
Specifications are subject to change without any obligation on
the part of HITACHI.
WARNING
LABEL
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15
ACTION WHY HOW
Keep lubricator filled. Keep the Tool 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 a jam. Blow clean daily.
Keep safety trigger working properly. Promote operator safety and efficient Tool operation. Blow clean daily.
Lubricate the Tool after use. Extend the life of the Tool. Supply 5-10 drops of lubricant into the Tool.
Drain air compressor. Keep the Tool operating properly. Open petcock on air compressor tank.
Drain air line filter daily Prevent accumulation of moisture and dirt. Open manual petcock.
MAINTENANCE CHART
English
16
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.
Trigger valve housing leaks air O-ring cut or cracked Contact Hitachi for replacement.
Trigger valve stem leaks air O-ring/seals cut or cracked Contact Hitachi for replacement.
Frame/nose leaks air
O-ring or gasket is cut or cracked Contact Hitachi for replacement.
Bumper is cracked / worn Contact Hitachi for replacement.
Frame/cap leaks air
Damaged gasket or seal Contact Hitachi for replacement.
Cracked / worn head valve Contact Hitachi for replacement.
Loose cap screws Tighten and recheck.
Failure to cycle
Air supply restriction Check air supply equipment
Worn head valve Contact Hitachi for replacement.
Broken cylinder cap spring Contact Hitachi for replacement.
Head valve stuck in cap Contact Hitachi for replacement.
Lack of power; slow to cycle
Broken cylinder cap spring Contact Hitachi for replacement.
Rings / seals cut or cracked Contact Hitachi for replacement.
Exhaust blocked Contact Hitachi for replacement.
Trigger assembly worn / leaks Contact Hitachi for replacement.
Dirt/tar build up on driver Contact Hitachi for replacement.
Cylinder sleeve not seated correctly on bottom bumper Contact Hitachi for replacement.
Air pressure too low Check air supply equipment
Skipping Staples;
intermittent feed
Worn bumper Contact Hitachi for replacement.
Tar/dirt in driver channel Contact Hitachi for replacement.
Air restriction/inadequate air flow through quick disconnect socket and plug Replace quick disconnect fittings
Worn piston ring Contact Hitachi for replacement.
Damaged pusher spring Contact Hitachi for replacement.
Low air pressure Check air supply equipment
Loose magazine nose screws Tighten all screws
Staples too short for Stapler Use only recommended Staples
Bent Staples Discontinue use of these Staples
Wrong size Staples Use only recommended Staples
Leaking head cap gasket Contact Hitachi for replacement.
Trigger valve O-ring cut / worn Contact Hitachi for replacement.
Broken/chipped driver Contact Hitachi for replacement.
Dry/dirty magazine
Clean / lubricate; Use Air Tool
Lubricant
Worn magazine Contact Hitachi for replacement.
Staples jam in Stapler
Driver channel worn Contact Hitachi for replacement.
Wrong size Staples Use only recommended Staples
Bent Staples Discontinue use of these Staples
Loose magazine nose screws Tighten all screws
Broken/chipped driver Contact Hitachi for replacement.
PROBLEM OR QUESTION CAUSE CORRECTIVE ACTION
English
17
EXPLODED VIEW
86
87 85
English
18
MODEL N2503AF - PARTS LISTING
ITEM NO. PART NO. DESCRIPTION
1, 1A 330469 Screw, SHCS (x6)
2 330470 Cap - Handle
3 330471 Gasket, Cap
4 330472 Top Seal
5 330473 Poppet
6 330474 O-Ring Head Valve
7 330475 O-Ring Head Valve
8 330476 Spring, Head Valve
9 330477 Head Valve
10 330478 Cylinder Top Seal
11 330479 Cylinder
12 330480 O-Ring
13 330481 Cylinder Ring
14 330482 O-Ring
15 330483 O-Ring
16 330484 Piston
17 330485 Pin
18 330486 Driver Blade
18U 330487 Piston/Driver Blade Ass'y
19 330488 Bumper
20 330489 Guide Driver
21 330490 Pin Retainer (x5)
22 330491 Body
23 330492 Nut
24 330493 Grip, Rubber
25 330494 Gasket, Handle
26 330495 Handle Cap
27 330496 Screw, SHCS (x3)
28 190001 Air Plug
29 330498 Plug Cap
30 330499 Trigger
31 330500 Spring Pin
32 330501 Trigger Plate
33 330502 Pin, Trigger
34 330503 Pin
35 330504 Roller
36 330505 Pin
37 330506 Screw, SHCS (x3)
38 330507 Pin
39 330508 Roller (x2)
40 330509 Pin
41 330510 O-Ring
42 330511 Trigger Valve Plunger
43 330512 Spring, Trigger Valve
44 330513 Trigger Valve Stem
45 330514 O-Ring (x2)
46 330515 O-Ring
ITEM NO. PART NO. DESCRIPTION
47 330516 Trigger Valve Housing
47U 330517 Trigger Valve Unit
48 330518 Hold Plate
49 330519 Screw
50 330520 Spring
51 330521 Arm Guide
52 330522 Spring
53 330523 Safety Arm B
54 330524 Screw, HHCS (x2)
55 330525 Front Guide
56 330526 Arm Cover
57 330527 Safety Arm A
58 330528 Insert, Nose (x2)
59 330529 Nose
60 330530 Plate, Driver
61 330531 Foot
62 330532 Knob (x2)
63 330533 Magazine, Fixed
64 330534 Stop Plate
65 330535 Screw, SHCS
66 330536 Plate
67 330537 Secondary Trigger
68 330538 Cap, Trigger Cable
69 330539 Trigger Cable
70 330540 Magazine Core
71 330541 Pusher
72 330542 Magazine, Slide
73 330543 Spring Pin
74 330544 Spring Pin
75 330545 Spring
76 330546 Latch
77 330547 Latch Cover
78 330548 Latch Stop
79 330549 Tip, Core
80 330550 Spring
81 330551 Shuttle, Pusher
82 330552 Pusher Spring
83 330553 Magazine Bumper
84 330554 Washer - 10001A
85 330555 Carrying Case
86 875769 Safety Glasses
87 330556 Wrench Set
88
Staples - 20ga - 1" x 3/16" - 10
x 5M
89
Staples - 20ga - 1" x 3/16" -
5M pack
English
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51
Issued by
Hitachi Koki Canada Co.
Hitachi Koki Co., Ltd.
Hitachi Koki U.S.A., Ltd.
Shinagawa Intercity Tower A, 15-1, Konan 2-chome,
Minato-ku, Tokyo 108-6020, Japan
Distributed by
3950 Steve Reynolds Blvd.
Norcross, GA 30093
450 Export Blvd. Unit B,
Mississauga ON L5T 2A4
812
Code No. ??????????
Printed in China
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