Makita GN420C Instruction Manual page 8

• 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
• Use the tool only with the Makita genuine fuel cell.
• Do not touch liquid gas sprayed out of the fuel cell.
Contact with it may cause injury.
• Risk of fire and explosion. When handling the
fuel cell for the purpose of storage, transporta-
tion, inserting into and taking out of the tool and
disposal:
— do not expose to sunlight and to tempera-
tures exceeding 50°C (122°F);
— do not smoke;
— avoid sparks and open flame.
• Always remove the battery cartridge 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.
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 ejec-
tion 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 to prevent danger if there
is sudden jerking or catching.
• On rooftops and other high locations, drive fasten-
ers as you move forward. It is easy to lose your
footing if you drive fasteners while inching back-
ward. When driving fasteners against perpendic-
ular 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 fasten-
ers with care.
• 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.
• To maintain product SAFETY and RELIABILITY,
maintenance and repairs should be performed by
Makita Authorized Service Centers, always using
Makita replacement parts.
SAVE THESE INSTRUCTIONS.
WARNING: DO NOT let comfort or famil-
iarity 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.
8 ENGLISH