Installation; Functional Description - Makita AN250HC Instruction Manual

failure to follow the safety rules stated in this
instruction manual may cause serious personal
injury.

INSTALLATION

Selecting compressor
(L/min)
120
110
100
90
80
70
60
50
40
30
20
10
0
0 5 10
Nailing frequency (times/min.)
010441
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 pin-driving frequency,
applicable pressure and compressor air output.
Thus, for example, if pin driving takes place at a rate of
approximately 15 times per minute at a compression of
1.76 MPa (17.6 bar), a compressor with an air output
over 70 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 pin-driving operation.
CAUTION:
Low air output of the compressor, or a long or
•
smaller diameter air hose in relation to the pin-
driving frequency may cause a decrease in the
driving capability of the tool.
Lubrication
Fig.2
Before and after use, oil the tool with pneumatic tool oil
by placing two or three drops into the air fitting. For
proper lubrication, the tool must be fired a couple of
times after pneumatic tool oil is introduced.
15 20 25 30

FUNCTIONAL DESCRIPTION

CAUTION:
Always disconnect the air hose before adjusting or
•
checking function on the tool.
Adjusting the pin-driving depth
CAUTION:
Always disconnect the hose before adjusting the
•
pin-driving depth.
Fig.3
Fig.4
If pins are driven too deep, turn the adjuster clockwise.
If pins are driven too shallow, turn the adjuster
counterclockwise.
The adjustable range is 10 mm. (One full turn allows 0.8
mm adjustment.)
Hook
CAUTION:
Always disconnect the hose when hanging the tool
•
using the hook.
Never hang the tool on a waist belt or like.
•
Dangerous accidental firing may result.
Fig.5
The hook is convenient for hanging the tool temporarily.
This hook can be installed on either side of the tool.
When changing the installation position, remove the
screw with a screwdriver. Install the hook on another
side for installation and then secure it with the screw.
Use the nose adapter
CAUTION:
Always disconnect the hose before installing or
•
removing the nose adapter.
Fig.6
Always use the nose adapter. Otherwise a slippage may
occur or even the nailer may not fire the nail.
Usually use one of two nose adapter A (transparent) ,
one factory-installed on the contact element and the
other stored below the grip.
When working on narrow partition tracks, use nose one
of two nose adapter B (black) which are provided with in
the tool carton box.
To attach the nose adapter to the contact element,
press it onto the contact element as far as it will go.
Locking the trigger
This nailer is provided with the mechanism for locking
trigger to avoid personal injuries and property damage
caused by improper operation during other than pin-
driving operation.
7