Hitachi NV 65AF3, Technical Data And Service Manual

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20
0
100
0.15
2.3 X 38 mm (0.090" X 1-1/2")
Siz
e
of nail
Air pressure setting to drive nail flush with NV 65AF3
2.3 X 45 mm (0.090" X 1-3/4") 2.5 X 50 mm (0.099" X 2") 2.5 X 57 mm (0.099" X 2-1/4") 2.5 X 65 mm (0.099" X 2-1/2")
0.20 0.25 0.30 0.35
150 200 250
20
40
60
80
200
400
600
800
40
60
(ft-lb)
(mm
2
)
(in
2
)
(kgf/cm 2 )
(psi)
(J)
20
0
4
4
5 6 7 8 8.3
20
40
60
80
200
400
600
800
40
60
(ft-lb)
(bar)
(kgf
•
cm) (kgf
•
cm)
(J)
5 6 7 8 8.5
60 70 80 90 100 110 120
NV 65AF3
Hemlock
2.8 X 65 mm (0.110" X 2-1/2")
C
S
5-3. Nail Driving Force
Fig. 4 shows by type of wood and nail the nailer output energy provided by the supply pressure and the nailing
energy required for driving the nail flush. Air pressure which exceeds the intersecting point between the nailer
output energy and the required nailing energy for driving the nail allows the nail to be fully driven.
For example, when driving a nail of 2.5 mm dia. x 65 mm length (0.099" x 2-1/2") into a workpiece of hemlock with
the Model NV 65AF3, a pressure of about 6 bar (6.1 kgf/cm 2 , 87 psi) allows the nailer to drive the nail flush with
the wood surface. A pressure beyond this value causes the nail head to be driven below the wood surface.
Fig. 4 should be used as a reference only because those values vary depending on the type of wood, moisture
content, and grain of wood.
Fig. 4 Required nailing energy and nailer output energy
Required nailing energy Nailer output energy