Avoid High-Pressure Fluids - Hitachi EH 5000AC-3 Technical Manual

Avoid High-Pressure Fluids

Fluids such as diesel fuel or hydraulic oil under pressure can
penetrate the skin or eyes causing serious injury, blindness
or death.
Avoid this hazard by relieving pressure before
disconnecting hydraulic or other lines.
Tighten all connections before applying pressure.
Search for leaks with a piece of cardboard; take care to
protect hands and body from high-pressure fluids. Wear a
face shield or goggles for eye protection.
If an accident occurs, see a doctor familiar with this
type of injury immediately. Any fluid injected into the
skin must be surgically removed within a few hours, or
gangrene may result.
SAFETY
SA-26
SA-031
SA-292
SA-044