Installation; Functional Description - Makita AN450H Instruction Manual

INSTALLATION

Selecting compressor
(L/min)
120
90
60
30
0
0 25
Nailng frequency
009550
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 50 times per minute at a compression of
1.76 MPa (17.6 bar), a compressor with an air output
over 90 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 a high pressure resistant air hose.
Use an air hose as large and as short as possible to
assure continuous, efficient nailing operation.
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.
50 75 100
(times/min)
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, 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 lower air pressure and
the adjuster set to a lower depth of nail driving.
CAUTION:
Always disconnect the hose before adjusting the
•
depth of nailing.
Hook
Fig.5
CAUTION:
Always 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.
Adjusting the shingle guide
Fig.6
Fig.7
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.
7