Makita AT450H Manual De Instrucciones página 7

• Keep children and bystanders away while operating the
tool. Distractions can cause you to lose control.
• Illuminate the work area sufficiently.
• There may be local regulations concerning noise which
must be complied with by keeping noise levels within
prescribed limits. In certain cases, shutters should be
used to contain noise.
Safety devices
• 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.
• Do not play with the contact element: it prevents
accidental discharge, so it must be kept on and not
removed. Securing the trigger in the ON position is also
very dangerous. Never attempt to fasten the trigger. Do
not operate a tool if any portion of the tool operating
controls is inoperable, disconnected, altered, or not
working properly.
• Do not attempt to keep the contact element depressed
with tape or wire. Death or serious injury may occur.
• Always check contact element as instructed in this
manual. Fasteners may be driven accidentally if the
safety mechanism is not working correctly.
Loading fasteners
• Do not load the tool with fasteners when any one of the
operating controls is activated.
• Use only fasteners specified in this manual. The use of
any other fasteners may cause malfunction of the tool.
Power source
• Never connect the tool to compressed air line where
the air pressure can exceed the suitable air pressure
range of the tool, specified in the "SPECIFICATIONS"
table, by 10%. Make sure that the pressure supplied by
the compressed air system does not exceed the
suitable air pressure range of the tool. Set the air
pressure initially to the lower value of the suitable air
pressure range.
• Operate the tool at the lowest pressure required for the
application, in order to prevent unnecessarily high
noise levels, increased wear and resulting failures.
• Never use the tool with other than compressed air. If
bottled gas (carbon dioxide, oxygen, nitrogen,
hydrogen, air, etc.) or combustible gas (hydrogen,
propane, acetylene, etc.) is used as a power source for
this tool, the tool will explode and cause serious injury.
• Always disconnect the air hose and remove all of the
fasteners:
- when unattended;
- before performing any maintenance or repair;
- before cleaning a jam;
- before moving the tool to a new location.
• Use only pneumatic tool oil specified in this manual.
Operational safety
• Always check the tool for its overall condition and loose
screws before operation. Tighten as required.
• Handle the tool carefully, as there is high pressure
inside the tool that can be dangerous if a crack is
caused by rough handling (dropping or striking). Do not
attempt to carve or engrave on the tool.
• Stop the operation immediately if you notice something
wrong or out of the ordinary with the tool. An improperly
functioning tool must not be used.
• Do not point the ejection port at anyone in the vicinity.
Keep hands and feet away from the ejection port area.
• Always assume that the tool contains fasteners.
• Never point the tool toward yourself or anyone whether
it contains fasteners or not.
• Do not rush the job or force the tool. Handle the tool
carefully.
• Do not activate the tool unless the tool is placed firmly
against the workpiece.
• Never hold or carry the tool with a finger on the trigger
or hand it to someone in this condition. Accidental firing
can cause serious injury.
• Never use fastener driving tools marked with the
symbol "Do not use on scaffoldings, ladders" for
specific application for example:
- when changing one driving location to another
involves the use of scaffoldings, stairs, ladders, or
ladder alike constructions, e.g. roof laths;
- closing boxes or crates;
- fitting transportation safety systems e.g. on vehicles
and wagons.
• Check walls, ceilings, floors, roofing and the like
carefully to avoid possible electrical shock, gas
leakage, explosions, etc. caused by striking live wires,
conduits or gas pipes.
• Do not use the tool for fastening electrical cables. It is
not designed for electric cable installation and may
damage the insulation of electric cables thereby
causing electric shock or fire hazards.
• Watch your footing and maintain your balance with the
tool. Make sure there is no one below when working in
high locations, and secure the air hose to prevent
danger if there is sudden jerking or catching.
• On rooftops and other high locations, drive fasteners
as you move forward. It is easy to lose your footing if
you drive fasteners while inching backward. When
driving fasteners against perpendicular surface, work
from the top to the bottom. You can perform driving
operations with less fatigue by doing so.
• A fastener will be bent or the tool can become jammed
if you mistakenly drive fastener on top of another
fastener or strike a knot in the wood. The fastener may
be thrown and hit someone, or the tool itself can react
dangerously. Place the fasteners with care.
• Do not leave the loaded tool or the air compressor
under pressure for a long time out in the sun. Be sure
that dust, sand, chips and foreign matter will not enter
the tool in the place where you leave it setting.
• Never attempt to drive fasteners from both the inside
and outside at the same time. Fasteners may rip
through and/or fly off, presenting a grave danger.
Service
• 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.
• Ask Makita authorized service center for periodical
inspection of the tool.
7