Hitachi NV 83A2 Instruction Manual page 33

2. Lubrication
(1) Prior to operating this nailer, be sure to provide an air
set between the air compressor and this device.
Lubrication through the air set offers smooth
operation, extended service life, and anticorrosion.
Adjust the oiler so that a single drop of oil is supplied
at intervals of 5 to 10 nailing cycles.
(2) It is recommended using the recommended oil (SHELL
TONNA). Other applicable oils are listed. Never mix
two or more types of different oils.
3. Load nails
(1) Grip the nail guide and knob with finger.
Press the knob down and swing the nail guide open.
And open the magazine cover. (Fig. 1)
(2) Adjust the position of the plate according to the nail
length.
The nail will not feed smoothly if the nail holder is
not correctly adjusted. (Fig. 2)
1 Turn the nail holder about 90 degrees
counterclockwise.
2 Slide in vertical direction possible.
Lift or lower the nail holder to accept different
length nails.
3 Adjust the plate to the nail length reference points
on the magazine cover and turn the nail holder 90
degrees clockwise until you hear "click".
(3) Place the nail coil into the magazine.
Uncoil enough nails to reach the driving hole. (Fig. 3)
(4) 1 Uncoil enough nails to reach the driving hole.
2 Insert the first nail into the driving hole and the
second nail between the two pawls of the feeder.
3 Fit the nail heads in the guide slot.
4 Pulling the nails to the right, swing the nail guide
closed. (Fig. 4)
(5) Close the magazine cover first and swing the nail
guide closed. (Fig. 5)
(6) Lock the knob correctly.
NOTE:
Be careful not to deform the collated wires and not to
disengage the nails with the guide surface.
Otherwise, the nail guide will not close correctly.
CAUTION:
To prevent unitentional operation, never touch the
trigger or place the top end of the push lever on a
work bench or floor. Also, never face the nail outlet
toward any part of a person.
NOTE:
Before loading the nails in the magazine, position the
nail holder according to the length of the nail. If the
nail holder position is not adjusted, the nail jam. If
the cover is forcibly closed without adjusting the
position of the nail holder, the nail holder may be
damaged.
HOW TO USE THE NAILER
CAUTIONS:
Never use the head or body of this device as a
hammer.
Take precautions to ensure the safety of persons in
the vicinity during operation.
1. Nailing procedures
(1) Intermittent nailing
Depress the nail outlet onto the desired point; then
pull the trigger to drive a nail in a single shot. (See
Fig. 6)
CAUTION:
This tool will bounce and shoot several nails instead
of just one in rapid succession when strongly pressed
flush against a surface or when using on hard
materials. In such cases, fire the nails by squeezing
and quickly releasing the trigger.
(2) Push lever
When depressing the nail outlet, be sure to fully lift
the push lever (see Fig. 6) to release the safety lock.
Thus, nails cannot be driven without releasing the
safety lock even though the trigger is pulled.
(3) Continuous nailing
First, pull the trigger. Then depress the devise onto
the desired position to automatically drive nails. (See
Fig. 7).
CAUTION:
Exercise care when nailing corners of lumber. When
continuous nailing corners of lumber, a nail may go
astray or break through the corner.
NOTES:
Precautions on no-load operation
Sometimes nailing will continue after driving in all
nails previously contained in the magazine.
This is termed "no-load operation". Such operation
may deteriorate the bumper, magazine, and nail
feeder.
To avoid no-load operation, occasionally confirm the
amount of remaining nails. On the other hand, all nails
should be removed after using this nailer.
After completing operation, put into the body about
2cc oil through the hose joint to protect the tool from
rust.
Under low temperature conditions, the machine
sometimes does not operate correctly. Always operate
the machine at the appropriate ambient temperature.
2. How to adjust the nailing depth
To assure that each nail penetrates to the same depth,
be sure that:
(1) the air pressure to the Nailer remains constant
(regulator is installed and working properly), and
(2) the Nailer is always held firmly against the workpiece.
If nails are driven too deep or shallow into the
workpiece, adjust the nailing depth in the following
order.
1 Disconnect air hose from nailer.
2 If nails are driven too deep, turn the adjuster to
the shallow side.
If nails are driven too shallow, turn the adjuster to
the deep side.
3 Stop turning the adjuster when a suitable position
is reached for a nailing test.
4 Connect the air hose.
Always wear eye protection.
Perform a nailing test.
5 Disconnect air hose from nailer.
6 Choose a suitable position for the adjuster. (Fig.
8)
CAUTIONS:
Before adjustment, always disconnect the hose and
release compressed air in the power tool.
During adjustment always keep your finger off the
trigger.
During adjustment make sure that no part of the body,
hands, or legs is ever in front of the nail outlet.
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