Komatsu D37EX-24 Operation & Maintenance Manual page 320

MAINTENANCE PROCEDURE
1.
Remove the cover (1) under the front cover.
2.
Remove the undercover (2).
3.
Place a container under the drain plug (P) to receive the
oil.
4.
Loosen the drain plug (P) to drain oil. Do it slowly so that
you do not get splashed with the drained oil.
5.
Tighten the drain plug (P).
6.
Check the drained oil.
If there are excessive metal particles or foreign material,
contact your Komatsu distributor.
7.
Install the undercover (2) and cover (1).
8.
Turn the engine oil filter cartridge (3) counterclockwise to remove by using the filter wrench.
9.
Fill the new filter cartridge with clean oil, coat the packing face and thread portion with oil (or coat thinly with
grease), then install the filter cartridge.
10. After the packing surface reaches the filter head, tighten the new filter cartridge 3/4 to 1 turn.
11. After replacing the filter cartridge, open the engine side
cover (4) on the left side of the machine.
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MAINTENANCE