Installation; Functional Description - Makita AN250HC Betriebsanleitung

• Always check contact element as instructed in this
manual. Pins may be driven accidentally if the
safety mechanism is not working correctly.
SAVE THESE INSTRUCTIONS.

INSTALLATION

Selecting compressor (Fig. 2)
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. 3)
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. 4)
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 pins. (Fig. 5)
When an air set is not used, oil the tool with pneumatic
tool oil by placing two or 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.

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. 6 & 7)
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.)
8
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. 8)
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.
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. 9)
If you like to avoid shifting of driving points by slippage on
workpiece, attach the nose adapter of contact element.
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. (Fig. 10)
Set the change lever to the LOCK position to lock the
trigger. (Fig. 11)
Before driving pins, set the change lever to the FREE
position. When NOT driving pins, be sure to set the
change lever to the LOCK position and disconnect the air
hose.
ASSEMBLY
CAUTION:
• Always disconnect the air hose before loading the
nailer.
Loading the nailer (Fig. 12)
Disconnect the air hose from the tool. Select pins suitable
for your work. Depress the latch lever and open the door
and magazine cap. (Fig. 13)
Place the pin coil in the magazine. Uncoil enough pins to
reach the pin guide. Place the first pin in the feeder and
the second pin in the feed claw. Place other uncoiled pins
on feeder body. Close the magazine cap slowly until it lock
after checking to see that the pin coil is set properly in the
magazine.
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.