Hitachi Zaxis 17U-5A Operator's Manual page 177

Changing intervals for the standard filter paper
Breaker Operation
Availability
Full-Flow Filter
Hydraulic oil: 1000 hours
life time
Hydraulic oil: 2000 hours
life time
100
90
80
70
60
50
40
30
20
10
0
0 200
MAINTENANCE
0 % 10 % 20 %
500 180 115
1000 720 580
2000 1310 980
When using filter-paper element
Element Replacement Intervals
Changing Interval when using 1000-hour life time Hydraulic Oil
400 600 800
Changing Intervals (hour)
30 % 40 % 50 %
95 85 75
500 450 410
780 650 550
Changing Interval when using 2000-hour life time Hydraulic Oil
1000 1200 1400
7-37
60 % 70 % 80 %
70 65 60
380 360 340
480 430 385
1600 1800
90 % 100 %
55 50
330 320
350 320
2000
MADB-13-042