Komatsu HB365LC-3 Operation & Maintenance Manual page 417

MAINTENANCE
1.
Remove the cover (3) on the bottom of the fuel tank. (if
equipped)
2.
Turn the valve (1) at the bottom of the fuel tank to CLOSE
position (S).
3.
Open the door on the right side of the machine.
4.
Place a container under the fuel prefilter cartridge (2) to
catch the fuel.
5.
Turn the filter cartridge (2) counterclockwise by using the
filter wrench, and remove it.
After removing the filter cartridge, fuel drops fall down from
the filter head.
In order to prevent fuel from flowing out, be sure not to
leave the machine without the filter cartridge.
6.
Clean the filter head. Thinly apply oil to the packing of the new filter cartridge and install the cartridge to the
filter head.
NOTICE
• Do not fill the new filter cartridge with fuel.
• Remove the cap (B) at center and install the filter
cartridge.
7.
When installing the cartridge, tighten it until the packing
surface contacts the sealing surface of the filter head, then
tighten it 3/4 of a turn.
If the filter cartridge is fastened too much, the packing will
be damaged and this leads to leakage of fuel. If the filter
MAINTENANCE PROCEDURE
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