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MAINTENANCE SCHEDULE
Replace hydraulic filter element
On a new machine, replace the element after the first 100 to
150 hours, then perform further replacement of the element ac-
cording to the table.
Change oil in hydraulic tank
Change the oil according to the table.
Replace additional filter element for breaker (if equip-
ped)
Use a guideline of 250 hours for use of the breaker (operating
ratio of the breaker: 50% or more), and replace the element ac-
cording to the table.
Replace pilot filter element (if equipped)
Use a guideline of 250 hours for use of the breaker (operating
ratio of the breaker: 50% or more), and replace the element ac-
cording to the table.
X: Breaker operating ratio (%)
Y: Replacement interval (H)
(A):Hydraulic tank element, pilot filter element
(B):Hydraulic oil
(C):Element of additional filter
REMARK
Breaker operating ratio 100% means that only the breaker is used
Breaker operating ratio 0% means that the breaker is not used
Lubricate
When the hydraulic breaker is equipped, lubricate the machine on 100-hour intervals.
MAINTENANCE INTERVAL WHEN DIESEL FUEL MIXED WITH BIO-FUEL IS
USED
If the diesel fuel which does not include the bio-fuel is changed to the diesel fuel mixed with bio-fuel, set the
maintenance interval as follows.
Replace the fuel prefilter cartridge
When the machine is operated first 250 hours after the diesel fuel has been changed to the diesel fuel mixed
with bio-fuel, and when the machine is operated further 250 hours.
After that, replace it within 500 hours as a periodic replacement by the service meter reading.
Replace the fuel main filter cartridge
When the machine is operated first 250 hours after the diesel fuel has been changed to the diesel fuel mixed
with bio-fuel, and when the machine is operated further 250 hours.
After that, replace it within 1000 hours as a periodic replacement by the service meter reading.
Maintenance interval after the diesel fuel has been changed to the diesel fuel mixed with bio-fuel
Operating hours of the machine
When
changed
Fuel prefilter
Replace.
cartridge
4-14
250 hours
500 hours
after chang-
after chang-
ing
ing
Replace.
Replace.
Service meter
Every 500 hours
Within 500
After 500 op-
operating
erating hours
hours after
after chang-
changing
ing
-
Replace.
MAINTENANCE
Every 1000 hours
Within 500
After 500 op-
operating
erating hours
hours after
after chang-
changing
ing
-
Replace.
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