Makita AN451 Instruction Manual page 8

When the air hose is connected, do not carry the
tool with your finger on the trigger or hand it t o
someone in this condition. Accidental firing can be
extremely dangerous.
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 nailing operations immediately if you notice
something wrong or out of the ordinary with the
tool.
.Always disconnect the air hose and remove all of
the nails before inspection, maintenance, relocating,
or after operation is over.