Komatsu H75051 Operation & Maintenance Manual page 324

MAINTENANCE SCHEDULE TABLE
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
4-14
250 hours 500 hours
after chang- after chang-
ing ing
Replace. Replace.
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.
- Replace.