CASE CONSTRUCTION CX75C SR, Operator'S Manual

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6 - MAINTENANCE
Breaker : hydraulic filters and hydaulic oil replacement
When using the hydraulic breaker, hydraulic fluid deteriorates more quickly than during ordinary digging. Check the
hydraulic fluid level more frequently. In addition, when changing the filters, also check the condition of the hydraulic
fluid.
Using the following graph as a reference, determine the intervals for changing the hydraulic fluid and filters, depending
on the frequency of use of the hydraulic breaker.
Percentage of use
100 % 40 % 20 % 10 %
Interval
10
h
100
h
600
h
10
h
300
h
1500
h
10
h
600
h
300
h
10
h
800
h
4000
h
Service points
Hydraulic fluid (1) (3) (1) (3) (1) (3) (1) (3)
Return circuit filter
(3) (3) (3) (3)
Suction filter (2) (3) (2) (3) (2) (3) (2) (3)
Pilot filter (3) (3) (3) (3)
Hydraulic fluid condition
200 h 300 h 600 h 800 h
(1) Check the level
(2) Clean or replace
(3) Replace
6-12