Maintenance
Service Data
Periodical Replacement of Hydraulic
Oil
With installed hydraulic breaking hammer, the
hydraulic oil deteriorates faster than the
common digging operations. Ensure to replace
the hydraulic oil and oil return filter element.
● The failure to replace timely will result in
damage of machine and breaking hammer
hydraulic system. To prolong the lives of
hydraulic devices, please timely replace
the hydraulic oil and oil return filter
element as per the table below.
● During the replacement of hydraulic oil,
clean the oil suction filter screen.
Replacement period (Hour)
By taking the breaking hammer operating ratio
of 100% for instance. Refer to “Hydraulic
Breaking Hammer” in page 8-6 for details.
( ): For the use of common anti-wear hydraulic
oil.
Breaking hammer operating ratio (%)
Filter replacement
period
Hydraulic device
replacement period
Replacement period (Hour)
5-7
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