Functional Description - Makita AN923 Instruction Manual

Additional warnings for tools with contact actuation
capability
1. Do not rest your finger on the trigger when picking
up the tool, moving between operating areas and
positions or walking, as resting finger on trigger
can lead to inadvertent operation. For tools with
selective actuation, always check the tool before
use to ascertain the correct mode is selected.
2. This tool has either selective actuation for contact
actuation or continuous contact actuation by
actuation mode selectors or is a contact actuation
or continuous actuation contact tool and has been
marked with the symbol above. Its intended uses
are for production applications such as pallets,
furniture, manufactured housing, upholstery and
sheathing.
3. If using this tool in selective actuation mode,
always ensure it is in the correct actuation setting.
4. Do not use this tool in contact actuation for
applications such as closing boxes or crates and
fitting transportation safety systems on trailers
and lorries.
5. Be careful when changing from one driving
location to another.
Safety devices
1. Make sure all safety systems are in working order
before operation. The tool must not operate if only
the trigger is pulled or if only the contact arm is
pressed against the wood. It must work only when
both actions are performed. Test for possible faulty
operation with fasteners unloaded and the pusher in
fully pulled position.
2. Securing the trigger in the ON position is very
dangerous. Never attempt to fasten the trigger.
3. Do not attempt to keep the contact element
depressed with tape or wire. Death or serious injury
may occur.
4. Always check contact element as instructed in
this manual. Fasteners may be driven accidentally if
the safety mechanism is not working correctly.
Service
1. Perform cleaning and maintenance right after
finishing the job. Keep the tool in tip-top condition.
Lubricate moving parts to prevent rusting and
minimize friction-related wear. Wipe off all dust from
the parts.
2. Ask Makita authorized service center for
periodical inspection of the tool.
3. To maintain product SAFETY and RELIABILITY,
maintenance and repairs should be performed by
Makita Authorized Service Centers, always using
Makita replacement parts.
4. Follow local regulations when disposing of the
tool.
10
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained
from repeated use) replace strict adherence to safety
rules for the subject product. MISUSE or failure to
follow the safety rules stated in this instruction
manual may cause serious personal injury.
PARTS DESCRIPTION (Fig. 2)
INSTALLATION
Selecting compressor (Fig. 3)
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 40 times per minute at a compression of
0.59 MPa (5.9 bar), a compressor with an air output
3
over 3 CFM (ft /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. 4)
• Use an air hose as large a diameter 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 8.5 mm
(5/16") 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 pressure rating of 1.03 MPa (10.3 bar) or 150
percent of the maximum pressure produced in the
system whichever is higher.
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. 5)
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. 6)

FUNCTIONAL DESCRIPTION

CAUTION:
• Always lock the trigger and disconnect the hose before
adjusting or checking function on the tool.