Replace Corrosion Resistor Cartridge - Komatsu D155A-6 Operation & Maintenance Manual

MAINTENANCE

REPLACE CORROSION RESISTOR CARTRIDGE

(If equipped)
The oil is at high temperature after the engine has been operated, so never replace the cartridge immediately after finishing
operations.
Wait for the oil to cool down before replacing cartridge.
Container to catch coolant
Prepare a filter wrench
1. Turn valve (1) of corrosion resistor (2) to the CLOSE stopper
position.
2. Set a container under the cartridge to catch the coolant.
3. Using a filter wrench, turn cartridge (2) to the left to remove it.
4. Clean the filter holder, coat the seal surface of the new
cartridge thinly with oil, then install the cartridge.
Always use a genuine Komatsu part for the cartridge.
5. When installing the cartridge, bring the packing surface into contact with the seal surface of the filter holder, then
tighten a further 2/3 times.
If the filter cartridge is tightened too far, the gasket will be damaged and coolant will leak. If it is too loose, coolant
will leak from the gap in the gasket, so always keep the proper tightening angle.
6. Turn valve (1) of corrosion resistor (2) to the OPEN stopper position.
7. After replacing the cartridge, run the engine, and check for any leakage of water from the filter seal surface. If
any water leakage is found, check the tightening of the filter cartridge.
WARNING
SERVICE PROCEDURE
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