Makita AN621 User Manual download pdf (Page 7)

Selecting air hose

Fig.1

Use an air hose as large 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 6.5 mm and a length of less

than 20 m is recommended when the interval between

each nailing is 0.5 seconds.

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.2

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.3

FUNCTIONAL DESCRIPTION

CAUTION:

• Always lock the trigger and disconnect the hose

before adjusting or checking function on the tool.

Adjusting depth of nailing

Fig.4

To adjust the depth of nailing, turn the adjuster so that

the arrow above the adjuster will point to the number

indicated on the adjuster. The depth of nailing is the

deepest when the arrow points to the number 1. It will

become shallower as the arrow points to higher number.

The depth can be changed in approx. 1.0 mm

increments per graduation. If nails cannot be driven

deep enough even when the arrow points to the number

1, increase the air pressure. If nails are driven too deep

even when the arrow points to the number 8, decrease

the air pressure. Generally speaking, the tool service life

will be longer when the tool is used with lower air

pressure and the adjuster set to a lower number.

ASSEMBLY

CAUTION:

• Always lock the trigger and disconnect the hose

before carrying out any work on the tool.

Selecting wire/plastic collated coil

Fig.5

According to the type of collated coil, set the change

lever.

Loading nailer

Fig.6

CAUTION:

• Make sure that nails are collated firmly and are not

bent.

Select nails suitable for your work. Depress the latch

lever and open the magazine cap.

Lift and turn the coil support plate to set it to the

graduations of the magazine. If the tool is operated with

the coil support plate set to the wrong step, poor nail

feed or malfunction of the tool may result.

Fig.7

Place the nail coil over the coil support plate. Uncoil

enough nails to reach the feed claw. Place the first nail in

the driver channel and the second nail in the feed claw.

The nail heads must be in the slot in the feeder body.

Place other uncoiled nails on feeder body and attach

them to the magnet. Be sure that nails are in the feeder

claw and are not bent. Then close the magazine cap.

Fig.8

Connecting air hose

Fig.9

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 a way that the pressure reservoir will discharge at

the time the air supply coupling is disconnected.

OPERATION

CAUTION:

• Make sure all safety systems are in working order

before operation.

1. To drive a nail, you may place the contact element

against the workpiece and pull the trigger, or

Fig.10

Fig.11

2. Pull the trigger first and then place the contact

element against the workpiece.

• No. 1 method is for intermittent nailing, when you

wish to drive a nail carefully and very accurately.

No. 2 method is for continuous nailing.

Continuous nailing and trigger locking method

Fig.12

For continuous nailing, set the change lever to the

"Continuous Nailing" position. For locking the trigger, set

the change lever to the "Lock" position. Always make

sure that the change lever is properly set to the position.

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Makita AN621 User Manual Page 7

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