OPERATING THE MACHINE
5-25
7. Be careful not to hit the breaker against the boom
when operating the arm roll-in and bucket (breaker)
roll-in functions.
REPLACEMENT OF HYDRAULIC OIL AND
FILTER ELEMENT
Using the hydraulic breaker subjects the machine’s hy-
draulic system to possible contamination and accelerated
deterioration. Hydraulic filter elements and hydraulic oil
must be replaced more often than with ordinary digging at-
tachment in order to prevent damage to hydraulic pumps
and other hydraulic components. Recommended replace-
ment intervals are as shown below.
Replacement Interval (hours)
Hydraulic
Oil
Filter
Element
Machine with Ordi-
nary Bucket
2000* 500
Machine with Hy-
draulic Breaker
500 100
* Hitachi New Landy HN was used.
NOTE: Replacement intervals shown here are for
100% bucket or breaker application. When
breaker /bucket applications are alternated, re-
placement intervals may be extended, depend-
ing upon the percent of time the bucket is ap-
plied.
M586-05-029
WR
N
To Next Page
