Bedienungsanleitung Hitachi NV50A1 (Seite 9 von 46) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Spanisch)

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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) Press the lever and open the cover (Fig. 1).

(2) Adjust the position of the nail holder according to the

length of the nail. Clamp and raise the nail holder with

two fingers and turn it to align the mark with the

numbers (50, 45, 38, 32) (Fig. 2).

(3) Load the nails in the magazine. Insert the beginning of

the nail into the opening of the magazine to facilitate

the following procedures (Fig. 3).

(4) Close the cover after confirming that the nails are

loaded in the magazine.

(5) Grip the nail guide and knob with the fingers. Then

depress the knob to open the nail guide towards the

left. (See Fig. 4)

(6) Extend the nail line from the magazine. Insert the first

nail into the driving hole and the second nail between

the two pawls of the feeder. Insert the nail so that the

nails head engages the guide slot. (Fig. 5).

Take care not to deform the steel wire which links the

nails and check the nails are engaged with the guide

surface. If not, the nail guide cannot be closed correctly.

(7) Grip the nail guide and knob. Then depress the knob

and turn the nail guide to the right. Nails are loaded by

adopting the above procedures.

CAUTION

⅜ 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

⅜ 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:

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

(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.

CAUTION

⅜ 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:

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 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.

⅜ After completing operation, put into the body about

2cc oil through the hose joint to protect the tool from

rust.

⅜ Under low temperature conditions, the machine

sometimes does not operate correctly. Always operate

the machine at the appropriate ambient temperature.

INSPECTION AND MAINTENANCE

CAUTION:

Be sure to disconnect the hose during cleaning

jams, inspection, maintenance and cleaning.

1. Countermeasure for nail jamming

(1) Remove the nail oil roll from the magazine, open the

nail guide, insert a rod into the nail outlet and tap the

rod with a hammer. (Fig. 8).

(2) Remove the jammed nail with . screw driver. (Fig. 9)

(3) Cut off the defective part of the steel wire which links

the nails with cutting nippers, correct the deformation,

then load the nail roll in the magazine.

(4) In case of frequent jam, consult the Authorized Service

Agent from which you bought this machine.

2. Inspection and maintenance

Periodically inspect the device.

(1) Remove the four hexagon socket hd. bolts securing

the exhaust cover and remove the exhaust cover.

Then, cylinder, piston, and other parts can be removed

in respective assembly groups.

Wipe the drive bit, the piston sliding part and the body

interior with a cloth to remove deposited dirt.

(2) Confirm that the piston damper offers normal

operation. A damaged piston damper may cause

damage to other component parts.

(3) Carefully check the O-ring for wear while

disassembling. A worn or damaged O-ring may

deteriorate overall performance. Replace a worn or

damaged O-ring with new one.

(4) Prior to reassembling the device, apply grease (Attolub

No. 2 Grease) to the O-ring. Also, lubricate the device

with the recommended oil.

3. Check on mounting screws for each part

At regular intervals check every part for loose

mounting screws and whether or not there are any

air leaks. Retighten any loose screws. Operating the

equipment with loose screws untightened will incur

a hazard.

Hitachi NV50A1 Seite 9

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