Check Hoses And Lines - Hitachi ZW 120-6 Operator's Manual

Check Hoses and Lines

--- every 10 hours / every 250 hours
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WARNING: 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 result.
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WARNING: Hydraulic oil and lubricant leaks can lead
to fire that may result in serious injury.
To avoid this hazard :
 Park the machine on a firm, level surface. Lower
the bucket to the ground. Stop the engine. Remove
key from the key switch. Push the control lever lock
switch to the lock ( ) position.
 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
below.
 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.
MAINTENANCE
7-51
SA-031
SA-292
SA-044