Manual Hitachi NR90AD (page 9 of 56) (English, German, Dutch, French, Italian, Portuguese, Spanish)

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English

Check the nailer for air leaks and defective or rusty

parts.

⅜ Check whether or not the push lever works correctly.

Also check whether or not any dirt has adhered to the

moving parts of the push lever.

⅜ Recheck on operational safety.

BEFORE USE

1. Check the air pressure

CAUTION

The air pressure must be constantly maintained at 4.9

– 8.3 bar (70 – 120 psi.).

Adjust the air pressure between 4.9 to 8.3 bar (70 ~

120 psi.) according to the diameters and length of nails

and hardness of the wood being nailed. Pay special

attention to the output pressure, capacity, and piping

on the air compressor, so that air pressure does not

exceed the specified limit. Note that excessive

pressure may affect overall performance, service life,

and safety.

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) Insert nail strip into rear of magazine (See Fig. 2).

(2) Slide the nail strip forward in the magazine.

The nail strip should pass the nail stopper.

(3) Pull the nail feeder (B) back to engage the nail feeder

(A) to the nail strip.

NOTE

⅜ Use nail strip of more than 5 nails.

The Nailer is now ready to operate.

Removing the nails:

1 Pull the nail feeder (B) backward.

2 Return the nail feeder (B) forward quietly while

pushing the nail feeder (A).

3 Push the nail stopper toward the magazine side, and

pull out nails from the back of the magazine.

CAUTIONS

⅜ To prevent unintentional operation, never touch the

trigger or place the top end of the push lever on a

work bench on floor. Also, never face the nail outlet

toward any part of a person.

HOW TO USE THE NAILER

CAUTIONS

⅜ Never use the head or body of this device as a

hammer.

⅜ Take precautions to ensure the safety of persons in

the vicinity during operation.

1. Nailing procedures

This Hitachi nailer is equipped with a nailer operation

switching device.

Use SINGLE SEQUENTIAL ACTUATION MECHANISM

or CONTACT ACTUATION MECHANISM in

accordance with the work to be performed.

(1) Intermittent nailing

Set the switching device to the upward position (to set

to SINGLE SEQUENTIAL ACTUATION MECHANISM)

(See Fig. 3).

Depress the nail outlet onto the desired point; then pull

the trigger to drive a nail in a single shot (See Fig. 4).

After nailing once, nailing will not be possible again

until the trigger is released and pressed again.

WARNING

A nail will fire each time the trigger is depressed as

long as the push lever remains depressed.

CAUTION

If you do not pull the trigger quickly and crisply while

in the single shot mode, the nailer will bounce and

shoot several nails instead of just one. To avoid this,

be sure to pull the trigger quickly and crisply.

(2) Push lever

When depressing the nail outlet, be sure to fully lift

the push lever (See Fig. 4) to release the safety lock.

Thus, nails cannot be driven without releasing the

safety lock even though the trigger is pulled.

(3) Continuous nailing

Set the switching device to the downward position (to set

to CONTACT ACTUATION MECHANISM) (See Fig. 5).

First, pull the trigger. Then depress the devise onto the

desired position to automatically drive nails (See Fig. 6).

The SINGLE SEQUENTIAL ACTUATION MECHANISM is

for use where precision fastener placement is desired.

The SINGLE SEQUENTIAL ACTUATION MECHANISM

may reduce the possibility of bodily injury to you or others

in the work area compared to the CONTACT ACTUATION

MECHANISM. This is because it is less likely to drive an

unwanted nail if you keep the trigger pulled and

accidentally bump the push lever against yourself or

others.

The SINGLE SEQUENTIAL ACTUATION MECHANISM

may also reduce the speed of operation compared to the

CONTACT ACTUATION MECHANISM. The SINGLE

SEQUENTIAL ACTUATION MECHANISM is

recommended to inexperienced users.

CAUTION

⅜ Exercise care when nailing corners of lumber. When

continuous nailing corners of lumber, a nail may go

astray or break through the corner.

⅜ Do not drive a nail on another nail.

⅜ Do not drive a nail on metal parts.

NOTES

⅜ 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 damper, 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.

⅜ Always handle nails and package carefully. If nails

are dropped, collating bond may be broken.

⅜ After nailing:

(1) disconnect air hose from the nailer;

(2) remove all nails from the nailer;

01Eng_NR90AD(S)_WE 2/25/11, 15:238

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Hitachi NR90AD Manual

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