Komatsu D37EX-24 Operation & Maintenance Manual page 327

MAINTENANCE
3.
Open the engine side cover (2) on the left side of the ma-
chine.
4.
Place a container under filter cartridge (3) to catch the fuel.
5.
Turn the filter cartridge (3) counterclockwise by using the
filter wrench, and remove it.
NOTICE
• Do not fill the new filter cartridge with fuel.
• Remove the cap (B) at center and install the filter car-
tridge.
6.
Clean the filter head.
7.
Thinly apply the oil to the packing surface of the new filter cartridge, then install the filter cartridge to the
filter head.
8.
After the packing surface reaches the sealing surface of the filter head, tighten the filter cartridge 3/4 turns.
REMARK
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. Be sure to observe the tightening angle.
9.
Turn the fuel supply valve (1) to OPEN position (O).
10. Bleed the air.
1)
Fill up the fuel tank with fuel (to the level where the
float is at the highest position).
MAINTENANCE PROCEDURE
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