Komatsu HD325-8, Operation & Maintenance Manual

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13. Open the fuel supply valve (1) of the fuel tank.
14. When replacing the fuel main filter cartridge (every 1000 hours), perform cartridge replacement and air
bleeding.
Do not supply fuel into the fuel main filter cartridge.
15. After replacing the filter cartridge, start the engine and run it at low idle for 10 minutes.
16. Check the filter seal surface and the mounting face of the transparent cup for fuel leakage.
If there is any leakage of fuel, check the tightening condition of the filter cartridge.
If there is still fuel leakage, perform the steps 1 to 5 to remove the filter cartridge, and if any damage or
pinched foreign material on the packing surface is found, replace it with a new cartridge and repeat the
steps 6 to 12.
METHOD FOR REPLACING TRANSMISSION OIL FILTER ELEMENT
k k
WARNING
Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn injury.
Wait for the temperature to go down, and then start the work.
Items to be prepared
Container to catch the drained oil
1.
Place a container to catch the drained oil under the trans-
mission oil filter (1).
2.
Remove the plug (2) of the transmission oil filter (1), and
drain the oil.
3.
After draining the oil, tighten the plug (2).
Tightening torque of drain plug: 49 to 58.8 Nm {5 to 6 kgm}
4.
Loosen the hexagonal portion (4) of the filter case (3), and
remove the filter case (3).
5.
Take out the element, and clean the inside of the case.
6.
Replace the O-ring of the transmission oil filter with a new
one.
Thinly apply clean oil to the O-ring, and install it.
7.
Install a new element to the filter case (3).
8.
Install the filter case (3).
Tightening torque of filter case: 58.8 to 78.5 Nm {6 to
8 kgm}
9.
Start the engine.
Run the engine at low idle for a while (1 minute or more).
10. Stop the engine.
11. Check that the oil level in the transmission case, and that it reaches the specified level.
Replace the element immediately if the transmission oil filter clogging caution lamp lights up when the engine is
running at high idle and the oil is warmed.
MAINTENANCE MAINTENANCE PROCEDURE
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