Case WX145 Operator's Manual page 299

SECTION 7
Avoid working with excavator cylinders completely
extended (fully extended or fully retracted) so as not
to damage the attachment structure or the same cyl-
inders.
Stop working if hydraulic hoses are bent abnormally.
Do not operate the hydraulic hammer in water. This
use may originate rust or damage seals and compo-
nents of the hydraulic system.
Do not use the hydraulic hammer for lifting of mov-
ing objects; the excavator may overturn and/or the
hydraulic hammer could get damaged.
While working with the excavator pay attention not
to strike the boom with the hydraulic hammer.
Do not use the hydraulic hammer when the dipper is
positioned vertically; excessive vibrations to dipper
cylinder may generate oil leaks.
Position the hydraulic hammer with the chisel placed
vertically on the material to be struck.
The hammer should not be operated longer that one
minute, because the chisel could wear down.
If the material is not broken after one minute, posi-
tion the chisel on different spots of the material run-
ning the hammer not longer than one minute on
each spot.
Do not lift the front side of the undercarriage by
pushing with the hydraulic hammer downward: the
front attachment could get damaged. Although a lift-
ing of 150 mm (5.90 in) of the front edge can be tol-
erated, perform this operation only if strictly
necessary.
Never exceed the 150 mm (5.90 in) of tolerance.
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