Maintenance Interval For Hydraulic Breaker; Maintenance Interval When Diesel Fuel Mixed With Bio-Fuel Is Used - Komatsu PC88MR-10 Operation & Maintenance Manual

MAINTENANCE

MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER

For machine equipped with a hydraulic breaker, the hydraulic oil deteriorates faster than for normal bucket dig-
ging operations, so set the maintenance intervals as follows.
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.
X: Breaker operating ratio (%)
Y: Replacement interval (H)
(A):Element of hydraulic tank
(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
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
Fuel main fil-
Replace.
ter cartridge
250 hours 500 hours
after chang- after chang-
ing ing
Replace. Replace.
Replace. Replace.
WENAM00042
Service meter
Every 500 hours
Within 500 After 500 op-
operating erating hours
hours after after chang-
changing ing
- Replace.
- -
MAINTENANCE SCHEDULE
Every 1000 hours
Within 500 After 500 op-
operating erating hours
hours after after chang-
changing ing
- Replace.
- Replace.
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