Komatsu WA200-8 Operation & Maintenance Manual page 351

MAINTENANCE
1.
Open the engine side cover (1) on the right side of the ma-
chine.
2.
Place a container under the filter cartridge to catch the
fuel.
3.
Turn filter cartridge (2) counterclockwise by using the filter
wrench, and remove it.
4.
Clean the filter head.
Replace inner seal (3) with a new one.
5.
Thinly apply oil to the packing surface of the new filter cartridge, then install the filter cartridge to the filter
head.
NOTICE
• Do not fill the new filter cartridge with fuel.
• Remove cap (A) at center and install the filter car-
tridge.
6.
When installing the filter cartridge, tighten it until the pack-
ing surface contacts the sealing surface of the filter head,
then tighten it 3/4 turn.
NOTICE
If the filter cartridge is fastened too much, the packing
will be damaged and this leads to leakage of fuel. If the
filter cartridge is too loose, fuel will also leak from the
packing clearance. Be sure to observe the tightening
angle.
When tightening with a filter wrench, be extremely
careful not to dent or damage the filter.
7.
After completing the replacement of filter cartridge (2), bleed air from the circuit.
Bleed the air as follows:
MAINTENANCE PROCEDURE
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