Hitachi NR 90AC3, Технические данные и руководство по обслуживанию

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7 mm
(0.286")
60 mm (2-3/8")
Minimum
Plastic-collated strip nails full-head nails
Maximum
8.3 mm
(0.327")
90 mm (3-1/2")
4.1 mm
(0.162")
20 deg.
Min. 13 mm
(0.5")
Max. 41 mm
(1.6")
5-3. Nail Selection
The Model NR 90AC3 utilizes round-head nails collated with plastic resin into bands of 25 to 30 pieces.
Applicable nail dimensions are shown below.
CAUTION: Ensure that nails are as specified in Fig. 1. Other nails will cause clogging of nails and
subsequent damage to the nailer.
Fig. 1 Dimensions of nails
5-4. Nail Driving Force
Figure 2 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 4.1 mm dia. by 90 mm length (0.162" x 3-1/2") into a workpiece of hemlock
spruce with the Model NR 90AC3, a pressure of about 6.4 bar (6.5 kgf/cm
2
, 92 psi) allows the nailer to drive the
nail flush to the wood surface. A pressure beyond this value causes the nail head to be driven below the wood
surface. Figure 2 should be used as reference data because those values vary depending on the type, moisture
content, and grain of wood.
2.9 mm
(0.113")