Hitachi N 3804ab3 Manual

							11
(2) Adjust the air pressure to 70 psi (4.9 bar 5 kgf/
cm2).
Connect the air hose.
Do not load any staples in the Stapler.
Set the switching device to the upward position
(SINGLE ACTUATION MECHANISM).
(Set the switching device to the upward position
completely as shown in the diagram. Otherwise,
it will not operate properly.)
THE STAPLER MUST NOT LEAK AIR.
(3) With finger off the trigger, depress the push lever
against the workpiece.
THE STAPLER MUST NOT OPERATE.
(4) Separate the push lever from the workpiece.
Next, point the stapler downward, pull the trigger
and then wait in that position for 5 seconds or
longer.
THE STAPLER MUST NOT OPERATE.(5)
1Without touching the trigger,  depress the
push lever against the workpiece.
Pull the trigger.
THE STAPLER MUST OPERATE.
2Hold the trigger back while separating the
push lever from the workpiece.
The stapler will remain in operated status (the
driver blade will remain at the bottom).
3Remove the finger from the trigger.
Stapler operation will end (the driver blade
will return to the top).
(6)Set the switching device to the downward position
(CONTACT ACTUATION MECHANISM).
(Set the switching device to the downward position
completely as shown in the diagram. Otherwise,
it will not operate properly.)
With the Stapler off the workpiece, pull the trigger.
Depress the push lever against the workpiece.
THE STAPLER MUST OPERATE.
Switching device
Upward position
Do not pull
trigger
Depress push lever
Pull trigger
Switching device
Downward position
 01Eng_N3804AB3_Eng10/4/07, 19:51 11 
						

							12
(7) If no abnormal operation is observed, you may
load staples in the Stapler.
Drive staples into the workpiece that is the same
type to be used in the actual application.
THE STAPLER MUST OPERATE PROPERLY.
ADJUSTING AIR PRESSURE
WARNING

Do not exceed 120 psi (8.3 bar 8.5 kgf/
cm2).
Adjust the air pressure at recommended operating
pressure 70 – 120 psi (4.9 – 8.3 bar
5 – 8.5 kgf/cm
2) according to the length of staples and
the hardness of workpiece.
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 staples into Stapler,
1) do not pull trigger;
2) do not depress push lever; and
3) keep Stapler pointed downward.
(1) Pull the staple feeder backward, and confirm that
the feeder stopper is securely lodged in the feeder
stopper hole on the staple feeder.
(2) Place the staple strip over the magazine.
Make sure that the staple strip slides freely on the
magazine.
Feeder stopper
Staple feeder
(3) Pull the staple feeder backward slightly, and press
in the feeder stopper. Push the staple feeder
forward. Gently set the staple feeder to the back
of the loaded staples.
The Stapler is now ready to operate.
CAUTION:If the staple feeder is released all of a sudden, it
can return abruptly, causing deformation and/or
scatter, eventually ending up in clogged staples.
Be absolutely sure to bring back the staple feeder,
avoiding any impact.
STAPLER OPERATION
Read section titled “SAFETY”(pages 4 – 6).
DANGER

Operators and others in
work area MUST wear
safety glasses with side
shields which conforms to
ANSI Z87.1 specifications.
WARNING

NEVER point tool at
yourself or others in
work area.
Keep fingers AWAY from
trigger when not driving
staples to avoid
accidental firing.
StapleMagazine
Staple feederFeeder stopper
31
2
 01Eng_N3804AB3_Eng10/4/07, 19:51 12           
						

							13
Choice of triggering method is
important.
Please read and understand “METHODS
OF OPERATION” found below.
Before starting work, check the stapling
operation switching device.
This Hitachi stapler includes a stapling
operation switching device.
Before starting work, make sure that the
switching device is properly set.
If the switching device is not set
properly, the stapler will not operate
correctly.
Never place your hands or feet closer
than 8 inches (200 mm) from firing head
when using.
Do not drive staples on top of other
staples or with Stapler at too steep of
an angle; staples can ricochet and hurt
someone.
In order to avoid double fire or
unwanted ejection of a staple due to
bouncing of the Stapler.
1) do not push Stapler on workpiece
with strong force;
2) take Stapler away from workpiece
using recoil;
3)release trigger quickly when
performing trigger fire.
Do not drive staples into thin boards or
near corners and edges of workpiece.
Staples can be driven through or away
from workpiece and hit someone.
Never drive staples from both sides of
a wall at the same time. Staples can be
driven into and through the wall and hit
a person on the opposite side.
Never use Stapler which is defective or
operating abnormally.
Do not use Stapler as hammer.Disconnect air hose from Stapler when:
1) turning the adjuster and top cover;
2)attaching or removing the nose cap;
3) it is not in use;
4) leaving work area;
5) moving it to another location; and
6) handing it to another person.
This Hitachi stapler is equipped with a stapler operation
switching device.
Use SINGLE ACTUATION MECHANISM or CONTACT
ACTUATION MECHANISM in accordance with the work
to be performed.
A FULL SEQUENTIAL ACTUATION MECHANISM KIT
(SEQUENTIAL TRIP MECHANISM KIT) is also available
as an option. Part no. 885986.Explanation of the various stapling operations

SINGLE ACTUATION MECHANISM (SINGLE
SEQUENTIAL ACTUATION MECHANISM): First,
press the push lever against the workpiece; next,
pull the trigger to drive the staple.
First, pull the trigger; next, press the push lever
against the workpiece to drive the staple.
After stapling once, stapling will not be possible
again until the trigger is released and pressed again.

CONTACT ACTUATION MECHANISM: First, press
the push lever against the workpiece; next, pull
the trigger to drive the staple.
First, pull the trigger; next, press the push lever
against the workpiece to drive the staple.
If the trigger is held back, a staple will be driven each
time the push lever is pressed against the workpiece.

FULL SEQUENTIAL ACTUATION MECHANISM:
First, press the push lever against the wood; next,
pull the trigger to drive the nail. Follow the same
sequence to continue driving nails.
METHODS OF OPERATION
This Stapler 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 staples
with this Stapler.
They are:
1. Intermittent operation (Trigger fire):
2. Continuous operation (Push lever fire):
(1) Intermittent operation (Trigger fire)
Use the SINGLE ACTUATION MECHANISM setting.
WARNING

Unlike the FULL SEQUENTIAL
ACTUATION MECHANISM, please note
that the SINGLE ACTUATION
MECHANISM of this Hitachi nailer will
drive a nail each time the push lever is
pressed against the wood as long as the
trigger is pressed.
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.
1Set 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.
 01Eng_N3804AB3_Eng10/4/07, 19:51 13   
						

							14
2Pull the trigger with the Stapler off the
workpiece.
3Depress the push lever against the workpiece
to drive a staple.
4Move the Stapler along the workpiece with a
bouncing motion.
Each depression of the push lever will drive
a staple.
As soon as the desired number of staples have
been driven, remove finger from the trigger.
WARNING

Keep your finger off the trigger except
during fastening operation, because
serious injury could result if the push
lever accidentally contacts you or others
in work area.
Keep hands and body away from the
discharge area. The Stapler with contact
trip mechanism may bounce from the
recoil of driving a fastener and
unwanted subsequent fastener may be
driven, possibly causing injury.
Some types of loaded staples can spark
out of the muzzle during a staple driving
operation. Exercise caution!
THE FULL SEQUENTIAL ACTUATION MECHANISM
(SEQUENTIAL TRIP MECHANISM) is for use where
precision fastener placement is desired and must be
operated in accordance with the following “Method of
Operation”. Otherwise, it will be set to CONTACT
ACTUATION MECHANISM.)
2Position the staple outlet on the workpiece
with finger off the trigger.
3Depress the push lever firmly until it is
completely depressed.
4Pull the trigger to drive a staple.5Remove finger from the trigger.
To continue stapling in a separate location, move
the stapler along the workpiece, repeating steps
2 - 5 as required.
(2) Continuous operation (Push lever fire)
Using CONTACT ACTUATION MECHANISM
WARNING

To avoid double firing or accidental
firing due to recoil.
1)Do not press the stapler against the
workpiece with excessive force.
2)Separate the stapler from the
workpiece as it recoils after
stapling.
1Set 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.)
Switching device
1 Upward position
Push lever
Trigger
3
4Push lever
2
4
Previously pull
the trigger
Switching device
1 Downward position
 01Eng_N3804AB3_Eng10/4/07, 19:51 14     
						

							15
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 FULL SEQUENTIAL
ACTUATION MECHANISM (SEQUENTIAL TRIP
MECHANISM) may reduce the possibility of bodily
injury to you or others in the work area. This is
because it is less likely to drive an unwanted nail if
you keep the trigger pulled and accidentally bump
the push lever against yourself or others.
An OPTIONAL SEQUENTIAL TRIP MECHANISM
may also reduce the speed of operation compared
to the standard contact trip mechanism.
NOTE:
If all warnings and instructions are followed, safe
operation is possible with all three systems:
SINGLE ACTUATION MECHANISM, CONTACT
ACTUATION MECHANISM and FULL SEQUENTIAL
ACTUATION MECHANISM.
Always handle staples and package carefully. If
staples are dropped, collating bond may be broken,
which will cause mis-feeding and jamming.
After stapling:
1) disconnect air hose from the Stapler;
2) remove all staples from the Stapler;
3) supply 5 – 10 drops of Hitachi pneumatic tool
lubricant into the air plug on the Stapler; and
4) open the petcock on the air compressor tank
to drain any moisture.
ADJUSTING THE STAPLING DEPTH
WARNING

When adjusting the Adjuster, be sure to
remove your finger from the trigger and
disconnect the air hose from the stapler.
To assure that each staple penetrates to the same depth,
be sure that:
1) the air pressure to the Stapler remains constant
(regulator is installed and working properly), and
2)the Stapler is always held firmly against the
workpiece.
If staples are driven too deep or shallow into the
workpiece, adjust the stapling in the following order.
1DISCONNECT AIR HOSE FROM STAPLER.
2If staples are driven too deep, turn the adjuster to
the shallow side.
If staples are driven too shallow, turn the adjuster
to the deep side.
3Stop turning the adjuster when a suitable position
is reached for a stapling test.
4Connect the air hose.
ALWAYS WEAR SAFETY GLASSES.
Perform a stapling test.
5DISCONNECT AIR HOSE FROM STAPLER.6Choose a suitable position for the adjuster.
NOTE:
The staple might not drive deep enough if using
high pressure with the adjuster set upwards
(shallow side) due to factors such as the material
hardness or staple type.
If that happens, reduce pressure and set the
adjuster to lowest position so the staple drives in
at a good position.
Disconnect
air hose15
Adjuster
Too DeepTurn Adjuster
Flush
Too ShallowTurn Adjuster
Flush
 01Eng_N3804AB3_Eng10/4/07, 19:51 15   
						

							16
Disconnect
air hose1Lock lever3
Guide plate
3
CHANGING THE EXHAUST DIRECTION
WARNING

When changing the exhaust direction,
be sure to remove your finger from the
trigger and disconnect the air hose from
the stapler.
The direction of the exhaust vent can be changed by
turning the top cover.
USING THE NOSE CAP
WARNING

When detaching or attaching the nose
cap, be sure to remove your finger from
the trigger and disconnect the air hose
from the stapler.
Exhaust
ventTop cover
1. Clearing a jam
Remove a jammed staple in the following order:
1DISCONNECT AIR HOSE.2Remove all staples.3Release the lock lever and open guide plate. 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” (pages 4 – 6).
WARNING

Disconnect air hose and remove all
staples from Stapler when:
1)doing maintenance and inspection;
and
2) clearing a jam.
MAINTENANCE
Firing head
Nose capPush leverDisconnect
air hose
1
The nose cap is attached to the push lever tip to protect
the workpiece from scratches or damage. Remove in
the order shown below when not using.
1DISCONNECT AIR HOSE FROM STAPLER.2Pull out the nose cap in the direction of the arrow
as shown in the diagram.

Attach to the tip of the push lever in the reverse
order of detaching.
 01Eng_N3804AB3_Eng10/4/07, 19:51 16       
						

							17
4Remove the jammed staple with a slotted-
head screwdriver.
5Close guide plate and latch.6In case of frequent jam, contact a Hitachi
authorized service center.
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.
Keep the Stapler in a warm area.

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 18)
5. Operator troubleshooting (See page 18)
6. Service parts list
CAUTION:
Repair, modification and inspection of Hitachi
Power Tools must be carried out by a 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 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 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.
NOTE:
Specifications are subject to change without any
obligation on the part of HITACHI.
Warning label
Guide plate
 01Eng_N3804AB3_Eng10/4/07, 19:51 17     
						

							18
Drain air line filter daily.
Keep lubricator filled.
Clean filter element — then blow air
through filter in direction opposite
to normal flow.
Clean magazine and feeder
mechanism.
Keep push lever working properly.
Lubricate the Stapler afterstapling.
Drain air compressor.Prevent accumulation of
moisture and dirt.
Keep the Stapler lubricated.
Prevent clogging of filter
with dirt.
Prevent a jam.
Promote operator safety and
efficient Stapler
operation.
Extend the Stapler life.
Keep the Stapler operated
properly.Open manual petcock.
Fill with Hitachi pneumatic toollubricant.
Follow manufacturer’s
instructions.
Blow clean daily.
Blow clean daily.
Supply 5 – 10 drops of lubricant intothe Stapler.
Open petcock on air compressor
tank. ACTION WHY HOW
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.
Stapler operates but no staple is
driven.
Weak drive.
Slow to cycle
Drives too deep.
Skipping staples.
Intermittent feed.
Staples jam.
Driven staple is bent.
Drives properly during normal
operation, but does not drive fully
at faster stapling speeds.
Check for a jam.
Staple feeder damaged?
Ribbon spring weakened or
damaged?
Check for proper staples.
Check air pressure.
Check position of stapling depthadjuster
—
Driver blade worn?
Piston O-ring worn or  damaged?
Check air pressure.
Check position of staplingdepth adjuster
Check for proper staples.
Staple feeder damaged?
Ribbon spring weakened or
damaged?
Piston O-ring worn or damaged?
Check for proper staples.
Driven blade worn?
Check inside diameter of air hose.
Clean jam per page 16.
Replace staple feeder.
Replace ribbon spring.
Use only recommended staples.
Increase air pressure.
(Do not exceed 120 psi (8.3 bar 8.5
kgf/cm2)
Readjust per page 15.
Use Hitachi pneumatic toollubricant.
Contact Hitachi for replacement.
Reduce air pressure.(Adjust 70 – 120 psi)
Readjust per page 15.
Use only recommended staples.
Replace staple feeder.
Replace ribbon spring.
Contact Hitachi for replacement.
Use only recommended staples.
Contact Hitachi for replacement.
Use larger air hose. PROBLEM CHECK METHOD CORRECTION
Maintenance chart
 01Eng_N3804AB3_Eng10/4/07, 19:51 18 
						

							19
 02Back_N3804AB3_Eng10/4/07, 19:51 19   
						

							20
 02Back_N3804AB3_Eng10/4/07, 19:51 20