Hitachi EX1900-5, Operator'S Manual

Page: 194 / 281

MAINTENANCE
7-62
Check Hoses and Lines
--- daily
--- every 250 hours
CAUTION: 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.
Any fluid injected into the skin must be surgically
removed within a few hours or gangrene may re-
sult.
CAUTION: Hydraulic oil and lubricant leaks can
lead to fire that may result in serious injury.
To avoid this hazard :
1. Park the machine on a firm, level surface.
Lower the bucket to the ground.
Stop the engine. Remove key from the key
switch. Pull the pilot control shut-off lever to
the LOCK position.
2. Check for missing or loose clamps, kinked
hoses, lines or hoses that rub against each
other, damaged oil cooler, and loose oil cooler
flange bolts, for leaks.
Check hoses, lines and oil cooler at the check
points indicated below for leaks and other
damage that may result in future leaks.
If any abnormalities are found, replace or
retighten them, as shown in Tables 1-3.
3. Tighten, repair or replace any missing, loose
or damaged clamps, hoses, lines, oil cooler,
and loose oil cooler flange bolts.
Do not bend or strike high-pressure lines.
Never install bent or damaged hoses or lines.
SA-031
SA-292
SA-044