Change Oil In Engine Oil Pan, Replace Engine Oil Filter Cartridge - Komatsu PC800-8 Operation & Maintenance Manual

Hydraulic excavator
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MAINTENANCE PROCEDURE

CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE

Parts and oil are at high temperature immediately after the engine is stopped and may cause serious
burns. Wait for the oil temperature to go down before performing this operation.
q Oil pan refill capacity: 53 liters
q Prepare a filter wrench
1. Remove cover (1) under the machine and put a container
under drain valve (P) to catch the drained oil.
2. Install hose (2) (kept in the toolbox) to drain valve (P), then
move lever (3) of the drain valve down slowly and drain the
oil. After draining the oil, move the lever up to close the
valve.
q Never loosen plug (a). Even if it is not loosened, the
oil will come out when the lever is operated.
q When not using hose (2), keep it in the toolbox.
3. Open the front cover of the engine hood, use a filter
wrench from the top of the engine, turn filter cartridge (4) to
the left, and remove it.
4. Clean the filter holder, fill the new filter cartridge with clean oil, coat the thread and packing surface of the new
filter cartridge with clean oil (or coat it thinly with grease), then install it to the filter holder.
REMARK
Check that there is no old packing stuck to the filter holder. If there is any old packing stuck to the filter, it will cause
leakage of oil.
4-56
WARNING
MAINTENANCE
4

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