Case CX490D Operator's Manual page 333

Crawler excavator
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12. Operate the hydraulic crusher according to the con-
trol pattern defined at the step 10. The crushing force
increases with the sliding of the proportional switch in
the closing direction. Release the switch to hold the
crusher jaws in position.
Do not allow the machine weight to be supported by prying
with the crusher and cylinders fully extended or retracted.
Doing so may damage the front attachment. In particular,
avoid doing so with the crusher cylinder fully extended as
the front attachment will be more easily damaged.
Do not use the crusher to haul or move crushed scraps.
Do not perform crushing on either side of the machine,
always do so at front or rear, parallel with tracks. Other-
wise, the machine may overturn.
When operating the crusher up high with the boom fully
raised, be careful of falling objects.
9 - ACCESSORIES
9-27
35
SMIL15CEXY965AB
36
NH0212A
37
NH0213A
38
NH0214

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