24. Maintenance Table
3-23
When a hydraulic breaker is used, the hydraulic oil deteri-
orates earlier than in usual bucket excavating work. Set up
the service time intervals as follows:
• Replacing the hydraulic oil return filter element
Replace the hydraulic oil return filter element on the new
machine once after the first 100 to 150 hours. After that
; replace it referring to the chart at right.
• Replacing the hydraulic oil in the hydraulic oil tank
Replace the hydraulic oil according to the chart at right.
24-2. Service intervals when using the hydraulic breaker
Replacement intervals (H)
Hydraulic oil
Return filter
Only standard
excavator operation
Hydraulic breaker operation rate (%)
Only breaker
operation
1000
750
250
500
0 20 40 60 80 100
000524-00E