Hitachi EX1900-5, Operator'S Manual

Page: 29 / 281

SAFETY
S-21
PREVENT BURNS
Hot spraying fluids:
•
After operation, engine coolant is hot and under pressure.
Hot water or steam is contained in the engine, radiator
and heater lines.
Skin contact with escaping hot water or steam can cause
severe burns.
•
To avoid possible injury from hot spraying water. DO
NOT remove the radiator cap until the engine is cool.
When opening, turn the cap slowly to the stop. Allow
all pressure to be released before removing the cap.
•
The hydraulic oil tank is pressurized. Again, be sure to
release all pressure before removing the cap.
Hot fluids and surfaces:
•
Engine oil, gear oil and hydraulic oil also become hot dur-
ing operation.
The engine, hoses, lines and other parts become hot as
well.
•
Wait for the oil and components to cool before starting
any maintenance or inspection work.
505-E01B-0498
SA-039
SA-225
REPLACE RUBBER HOSES PERIODICALLY
•
Rubber hoses that contain flammable fluids under pres-
sure may break due to aging, fatigue, and abrasion. It is
very difficult to gauge the extent of deterioration due to
aging, fatigue, and abrasion of rubber hoses by inspec-
tion alone.
•
Periodically replace the rubber hoses. (See the page
of “Periodic replacement of parts” in the operator’s
manual).
•
Failure to periodically replace rubber hoses may cause a
fire, fluid injection into skin, or the front attachment to fall
on a person nearby, which may result in severe burns,
gangrene, or otherwise serious injury or death.
S506-E01A-0019
SA-019