601101

Makita AN621 Manual

7
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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.
… 7 …


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