Makita AN943 User Manual download pdf (Page 8)

• Do not attempt to keep the trigger contact element

depressed with tape or wire. Death or serious injury

may occur.

• Always check contact element as instructed in this

manual. Nails may be driven accidentally if the safety

mechanism is not working correctly.

SAVE THESE INSTRUCTIONS.

INSTALLATION

Selecting compressor (Fig. 2)

The air compressor must comply with the requirements of

EN60335-2-34.

• Select a compressor that has ample pressure and air

output to assure cost-efficient operation. The graph

shows the relation between nailing frequency,

applicable pressure and compressor air output. Thus,

for example, if nailing takes place at a rate of

approximately 40 times per minute at a compression of

0.59 MPa (5.9 bar), a compressor with an air output

over 3 CFM (ft

/minute) is required. Pressure

regulators must be used to limit air pressure to the

rated pressure of the tool where air supply pressure

exceeds the tool’s rated pressure. Failure to do so may

result in serious injury to tool operator or persons in the

vicinity.

Selecting air hose (Fig. 3)

• Use an air hose as large a diameter and as short as

possible to assure continuous, efficient nailing

operation. With an air pressure of 0.49 MPa (4.9 bar),

an air hose with an internal diameter of over 8.5 mm

(5/16”) and a length of less than 20 m (6.6 ft.) is

recommended when the interval between each nailing

is 0.5 seconds. Air supply hoses shall have a minimum

working pressure rating of 1.03 MPa (10.3 bar) or 150

percent of the maximum pressure produced in the

system whichever is higher.

CAUTION:

• Low air output of the compressor, or a long or smaller

diameter air hose in relation to the nailing frequency

may cause a decrease in the driving capability of the

tool.

Lubrication (Fig. 4)

To insure maximum performance, install an air set (oiler,

regulator, air filter) as close as possible to the tool. Adjust

the oiler so that one drop of oil will be provided for every

30 nails.

When an air set is not used, oil the tool with pneumatic

tool oil by placing 2 (two) or 3 (three) drops into the air

fitting. This should be done before and after use. For

proper lubrication, the tool must be fired a couple of times

after pneumatic tool oil is introduced. (Fig. 5)

FUNCTIONAL DESCRIPTION

CAUTION:

• Always lock the trigger and disconnect the hose before

adjusting or checking function on the tool.

Nose adapter (Accessory)

CAUTION:

• Always lock the trigger and disconnect the hose before

installing or removing the nose adapter.

When nailing workpieces with easily-marred surfaces, use

the nose adapter.

Attach the nose adapter to the contact arm. (Fig. 6)

Adjusting depth of nailing (Fig. 7)

To adjust the depth of nailing, turn the adjuster. The depth

of nailing is the deepest when the adjuster is turned fully

in the A direction shown in the figure. It will become

shallower as the adjuster is turned in the B direction. If

nails cannot be driven deep enough even when the

adjuster is turned fully in the A direction, increase the air

pressure. If nails are driven too deep even when the

adjuster is turned fully in the B direction, decrease the air

pressure. Generally speaking, the tool service life will be

longer when the tool is used with a lower air pressure and

the adjuster set to a lower depth of nail driving.

CAUTION:

• Always lock the trigger and disconnect the hose before

adjusting the depth of nailing.

Installing the hook (Fig. 8)

CAUTION:

• Always lock the trigger and disconnect the hose from

the tool.

• Never hook the tool at high location or on potentially

unstable surface.

The hook is convenient for hanging the tool temporarily.

To use the hook, simply lift up hook until it snaps into the

open position.

When not in use, always lower hook until it snaps into the

closed position.

ASSEMBLY

CAUTION:

• Always lock the trigger and disconnect the hose before

carrying out any work on the tool.

Loading the nailer (Fig. 9)

Select nails suitable for your work. Insert strip of nails into

the magazine. (Fig. 10)

Load nails so that they get parallel to the driver guide.

(Fig. 11)

Pull the pusher lever to the rear to engage the pusher to

the last nail.

Unloading nailer (Fig. 12)

Pull the pusher lever to the rear. Return the pusher lever

back while keeping the pusher depressed to disengage it

from the strip of nails.

Depress the nail stopper and remove the strip of nails

from the magazine. (Fig. 13)

Connecting the air hose (Fig. 14)

Lock the trigger. Slip the air socket of the air hose onto the

air fitting on the nailer. Be sure that the air socket locks

firmly into position when installed onto the air fitting. A

hose coupling must be installed on or near the tool in such

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Makita AN943 User Manual Page 8

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