Adjusting Air Pressure - Hitachi NV 90AG S Instruction And Safety Manual

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(2) Adjust the air pressure to 70 psi (4.9 bar 5 kgf/cm
Connect the air hose.
Do not load any nails in the Nailer.
Set the switching device to the upward position
(SINGLE SEQUENTIAL ACTUATION MECHANISM).
(Set the switching device to the upward position
completely as shown in the diagram. Otherwise, it will
not operate properly.)
□ THE NAILER MUST NOT LEAK AIR.
(3) Remove the fi nger from the trigger and press the
push lever against the wood.
□ THE NAILER MUST NOT OPERATE.
Depress
Push Lever
(4) Separate the push lever from the wood.
Next, point the nailer downward, pull the trigger and
then wait in that position for 5 seconds or longer.
□ THE NAILER MUST NOT OPERATE.
12
Upward position
Switching device
Do not pull
Trigger
Pull Trigger
).
2
(5) 1 Without touching the trigger, depress the push
lever against the workpiece.
Pull the trigger.
□ THE NAILER MUST OPERATE.
2 Remove the fi nger from the trigger.
□ NAILER 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 Nailer off the workpiece, pull the trigger.
Depress the push lever against the workpiece.
□ THE NAILER MUST OPERATE.
(7) If no abnormal operation is observed, you may load
nails in the Nailer.
Drive nails into the workpiece that is the same type to
be used in the actual application.
□ THE NAILER MUST OPERATE PROPERLY.

ADJUSTING AIR PRESSURE

Adjust the air pressure at recommended operating
pressure 70 – 120 psi (4.9 – 8.3 bar 5 – 8.5 kgf/cm
according to the length of nails and the hardness of
workpiece.
The correct air pressure is the lowest pressure which will
do the job. Using the Nailer at a higher than required air
pressure unnecessarily over stresses the Nailer.
Switching
device
Downward position
WARNING
● Do not exceed
120 psi (8.3 bar
8.5 kgf/cm
).
2
)
2

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