Hitachi ZX27U-2, Operator'S Manual, Page: 152 / 230

MAINTENANCE
7-32
Check Hoses and Lines
--- daily
--- every 250 hours
WARNING:
•
Escaping flammable fluid may cause fire.
Check for missing or loose clamps, kinked
hoses, lines or hoses that rub against each
other and/or come in contact with other
components, and any oil leaks.
•
Escaping fluid under pressure can penetrate
the skin causing serious injury.
To avoid this hazard, search for leaks with a
piece of cardboard.
Take care to protect hands and body from
high-pressure fluids.
If an accident occurs, see a doctor familiar with
this type of injury immediately.
•
Repair or replace any missing, loose or
damaged clamps, hoses, and lines.
•
Do not bend or strike high-pressure lines.
•
Never install bent or damaged hoses or lines.
Check hoses and lines for oil leaks and/or damage while
referring to the following tables. If any abnormality is
found, repair it as instructed in the remedy column.
SA-031
SA-292
SA-044
Hoses
Interval
(Hours)
Check Point Abnormality Remedy
Daily Hose surface
Hose end
Hose connection
Oil leak (1)
Oil leak (2)
Oil leak (3) Replace
Replace
Retighten or replace
hose or O-ring
Every
250
hours Hose surface
Hose end
Hose surface
Hose surface
Hose
Hose and hose
fitting Oil leak (4)
Oil leak (5)
Exposed reinforcement (6)
Blister (7)
Acute bend (8),
Collapse (9)
Deformation or Corrosion
(10) Replace
Replace
Replace
Replace
Replace
Replace
M137-07-008
M115-07-145
1
2
3
2
3
3 2
1
2
3