Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual

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MAINTENANCE MAINTENANCE SCHEDULE
4–11
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER
MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER:PC220_KU-LG10-20CK00A
On the machine equipped with a hydraulic breaker, the hydraulic oil and grease deteriorate faster than in normal
bucket digging operations, so set the maintenance intervals as follows.
q
Replace hydraulic filter element
On a new machine, replace the element after the first 100 to
150 hours of operation, then carry out further replacement of
the element according to the chart on the right.
q
Change oil in hydraulic tank
Change the oil according to the table on the right.
q
Replace additional filter element for breaker (if
equipped)
Replace pilot filter element (if equipped)
Use a guideline of 250 hours for use of the breaker (oper-
ating ratio of the breaker: 50% or more), and replace the
element according to the chart on the right.
X: Breaker operating ratio (%)
Y: Replacement interval (H)
(A): Hydraulic tank element
Pilot filter element
(B): Hydraulic oil
(C): Additional filter element
REMARK
Breaker operating ratio 100% means that only the breaker is
used
Breaker operating ratio 0% means that the breaker is not used
q
Lubrication
When the hydraulic breaker is equipped, lubricate the
machine on 100-hour intervals. For detail, see "LUBRI-
CATING (4-40)".