Komatsu HD325-8, Operation & Maintenance Manual

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3.
Remove the bolts (1) (4 pieces) and remove the cover (2).
4.
Remove the O-ring (3), spring (4), valve (5), strainer (6),
and element (7).
5.
Wash the inside of the case, valve (5), and strainer (6).
6.
Prepare a new element. Install the element, strainer, valve,
and spring to the case.
7.
Replace the O-ring with a new one, apply thin film of oil to
it, and install it.
8.
Install the cover (2) with bolts (1) (4 pieces).
Replace the element immediately if the torque converter oil temperature gauge indicates the white range, and
the hydraulic oil filter clogging caution lamp (if equipped) lights up while the engine is running.
METHOD FOR CHANGING OIL IN FINAL DRIVE CASE
k k
WARNING
• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury. Wait for the temperature to go down, and then start the work.
• If there is remaining pressure inside the case, the oil or plug may jump out. Turn the plug slowly to
release the pressure, then remove it carefully.
Refill capacity: 15.0 ℓ each of right and left
Items to be prepared
Container to catch the drained oil
1.
Stop the machine so that the embossed line (1) becomes horizontal and the drain plug (P) comes directly
under the machine.
HD325–8
HD405–8
2.
Remove the drain plug (P) and drain the oil.
3.
After draining oil, tighten the drain plug.
4.
Add the specified amount of oil through the hole of plug (G).
5.
After adding oil, check that the oil level is in the specified range.
MAINTENANCE PROCEDURE MAINTENANCE
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