Komatsu D37EX-24 Operation & Maintenance Manual page 304

MAINTENANCE PROCEDURE
The dust and dirt stuck to the radiator and cooler can be blown out by rotating the hydraulic drive fan in the
reverse direction.
1.
Turn the starting switch (1) to OFF position and stop the
engine.
2.
Set the parking brake lever (2) and work equipment lock
lever (3) to LOCK positions (L).
3.
Open the hydraulic tank inspection cover (4) on the left
side of the machine.
4.
Open the fuel tank inspection cover (5) on the right side of
the machine.
5.
Remove the undercover (6).
6.
Turn the starting switch (1) to ON position.
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MAINTENANCE