Inspection, Maintenance and Adjustment
4-17
DX380LC-7
Hydraulic Oil and Filter Service Intervals
When using a hydraulic breaker, the viscosity breakdown and
contamination of hydraulic oil is faster because the work
condition is more severe than during normal digging work. To
prevent the hydraulic components (especially pump) from
having a shortened life cycle, replace the hydraulic oil and main
hydraulic oil return filter using the following schedule.
NOTE:
The replacement intervals of hydraulic oil and filter
depend upon amount of time hydraulic breaker is
being used. These service intervals must be followed
as opposed to regularly scheduled maintenance.
Attachment
Operation Rate
Hydraulic Oil
Filter
Bucket Work
100%
2,000 Hours
250 Hours (First Replacement)
1,000 Hours (After First Replacement)
Hydraulic Breaker
Work
100%
500 Hours
100 Hours
*
These service intervals only apply, when genuine DOOSAN hydraulic oil and filter are used. If any other
brands are used, the guaranteed change interval must be reduced in half.
Figure 4
FG000767