Makita AN451 Instruction Manual page 12

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Selecting compressor
The air compressor must comply with the require-
ments of ANSI B19.3-1981.
Select a compressor that has ample pressure and air
output to
assure cost-efficient operation. The graph
shows the relation between nailing frequency, appli-
cable pressure and compressor air output. Thus, for ex-
ample, if nailing takes place a t a rate of approximately
30 times per minute a t
a compression of
6 kgf/cm2G
(85 PSIG), 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
Use an air hose as large and as short as possible to as-
sure continuous, efficeint nailing operation. With an air
pressure of 5 kgf/cm2 G (70 PSIG), an air hose with an
internal diameter of over 6.5 mm (1 7/64") 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 pres-
sure rating of 10.7 kgf/cm2 G (150 PSIG) or 150 per-
cent of the maximum pressure produced in the system
whichever is higher.
60
50
E
40
n
n
5
30
z
n
E
-
g
20
9
10
0 10 20 30 40 50
W
Nailing frequency ltimer/min.)
CAUTION
:
Low air output of the compressor, or a long or smaller diameter air hose in relation to the nail-
ing frequency may cause
a
decrease in the driving capability of the tool.
Connecting air hose
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
a t
the
time the air supply coupling is disconnected.