Makita MAC5200 Owner's Manual page 29

Make sure no one is nearby before nailing. Never
attempt t o nail from both the inside and outside at
the same time. Nails may rip through and/or fly off,
presenting a grave danger.
Watch your footing and maintain four balance with
the tool. Make sure there is no one below when
working in high locations, and secure the air hose
t o prevent danger if there is sudden jerking or
catching.
- O n rooftops and other high locations, nail as you
move forward. It is easy t o lose your footing if you
nail while inching backward. When nailing against
perpendicular surface, nail from the top t o the
bottom. You can perform nailing operations with less
fatigue by doing so.
A nail will be bent or the tool can become jammed
if you mistakenly nail on top of another nail or strike
a knot in the wood. The nail may be thrown and hit
someone, or the tool itself can react dangerously.
Place the nails with care.