Komatsu PC220LC -8 Operation & Maintenance Manual page 332

MAINTENANCE MAINTENANCE
(Machine of poor fuel arrangement specification)
Replace inner seal (3) with a new part.
NOTICE
Do not fill the new filter cartridge with fuel.
Remove cap (B) and install the filter cartridge.
6. When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it 3/4
of a turn.
If the filter cartridge is tightened too far, the packing will be damaged and this will lead to leakage of fuel. If the
filter cartridge is too loose, fuel will also leak from the packing, so always tighten the correct amount.
7. Turn the valve (1) at the bottom of the fuel tank to the OPEN position (O).
8. After completing the replacement of filter cartridge (2), bleed the air.
MAINTENANCE PROCEDURE MAINTENANCE PROCEDURE
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