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Air consumption table
Air compressor size formula
Amount of air required
=number of Staplers
average staples driven each minute per
Stapler
air consumption at given air pressure
safety factor (always 1.2)
Example: 3 Staplers (N3804AB3
(S)) operating at
100 psi driving 30 staples per minute
Amount of air required
=3 30 .025 (.73) 1.2
=2.7 CFM (ft
3
/min) (78.8 ltr/min)
After making the calculations as shown above, you
should find a compressor providing 2.7 CFM of air
that is required.
LUBRICATION
It is important that the Stapler be properly lubricated.
Without proper lubrication, the Stapler will not work
properly and parts will wear prematurely.
⅜
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 Stapler to malfunction.
⅜
Filter-regulator-lubricator units should always be
used.
Keep the lubricator filled with Hitachi pneumatic
tool lubricant.
⅜
If a lubricator is not available, supply 5 – 10 drops
of Hitachi pneumatic tool lubricant into the air plug
on the Stapler twice a day.
COLD WEATHER CARE
⅜
Do not store the Stapler in a cold weather
environment.
Keep the Stapler in a warm area until beginning
the work.
⅜
If the Stapler is already cold, bring it in a warm
area and allow the Stapler to warm up before use.
1
Reduce the air pressure to 40 psi (2.8 bar 2.8
kgf/cm
2
).
2
Remove all staples from the Stapler.
3
Connect the air hose and free-fire (blank-fire)
the Stapler.
The lowered air pressure will be enough to
free-fire the Stapler.
Slow speed operation tends to warm up the
moving part.
CAUTION:
Do not free-fire the Stapler at high pressure.
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
operating properly.
Before actually beginning the stapling work, test the
Stapler by using the checklist 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) DISCONNECT AIR HOSE FROM STAPLER.
REMOVE ALL STAPLES FROM STAPLER.
ALL SCREWS MUST BE TIGHTENED.
If any screws are loose, tighten them.
THE PUSH LEVER AND TRIGGER MUST
MOVE SMOOTHLY.
psi 80 90 100
Operating pressure (bar) (5.5) (6.2) (6.9)
(kgf/cm
2
) (5.6) (6.3) (7)
Air consumption
ft
3
/cycle .019 .023 .025
(ltr/cycle) (.55) (.64) (.73)
Push lever
Do not connect
air hose
Trigger