Installation; Functional Description; Adjusting Depth Of Nailing; Loading Nailer - Makita AN451 Instruction Manual

INSTALLATION

Selecting compressor
L/min
40
30
20
10
0
0 10 20 30 40
Nailing frequency(times/min.)
005623
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 30 times per minute at a compression of
0.59 MPa (5.9 bar), a compressor with an air output over
30 liters/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.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 disconnect the air hose before adjusting or
•
checking function on the tool.

Adjusting depth of nailing

Fig.4
To adjust the depth of nailing, press the knob toward the
nose tip and 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. 0.8 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 9,
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.
Adjusting the shingle guide
Fig.5
Fig.6
The shingle guide is designed for consistent shingle
exposure. Place shingle in desired position.
Turn the lever clockwise to release the adjusting plate.
Reset the tool on the exposed shingle with the
projections of the contact element depressing the
bottom of the previous row of the shingle. Slide the
adjusting plate up against the bottom of the exposed
shingle and turn the lever counterclockwise to lock the
adjusting plate.
ASSEMBLY
CAUTION:
Always disconnect the air hose before carrying out
•
any work on the tool.

Loading nailer

Fig.7
Select nails suitable for your work. Depress the latch
lever and open the magazine cap.
Lift and turn the coil support plate so that the arrow with
nail size indicated on the coil support plate will point to
the corresponding graduation increment marked on 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.
7