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Replacing the hydraulic filters and fluid when a hydraulic breaker is used (optional)
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
Interval in hours
Hydraulic fluid
Return circuit filter
Inlet filter
Pilot filter
Hydraulic fluid condition
(1) Check the level
(2) Clean or replace
(3) Replace
Checking the hydraulic system piping
Make sure there are no leaks from the hydraulic system hoses, pipes, plugs, connections and fittings and check that
all nuts and screws are correctly tightened. In the event of problems, repair, change or tighten the component(s)
concerned.
6 - MAINTENANCE
100%
10
100
600
10
(1)
(3)
(1)
(3)
(2)
(3)
(3)
200H
6-42
40%
20%
300
1500
10
600
Service points
(3)
(1)
(3)
(3)
(2)
(3)
(2)
(3)
(3)
300H
600H
10%
300
10
800
4000
(3)
(1)
(3)
(3)
(3)
(2)
(3)
(3)
800H
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