Kubota XN12-8 Operation Manual page 109

Maintenance
Service Data
List of Wearing Parts
Periodically replace the wearing parts, including filters and filter elements, as per the table below.
System
Hydraulic system
Engine lubrication
system
Fuel system
Air filter system
Item
Ventilator
Engine oil filter
Fuel filter
Air filter
Part name
Filter cartridge
Filter cartridge
Primary (Outer)
filter element
Secondary (Inner)
filter element
5-8
Replacement period
Every 1000h
Replace after first 50 hours, then
every 250 hours
Every 250h
Every 1,000h or 6 cleaning cycles
(Whichever comes first)
At replacement of primary filter
element