Oil Level Rises (Entry Of Coolant Or Fuel) - Komatsu ecot3 PC300LC-8 Shop Manual

SEN02634-02
S-13 Oil level rises (Entry of coolant or fuel)
General causes why oil level rises
• Coolant in oil (milky)
• Fuel in oil (smells diluted diesel fuel)
a
If oil is in coolant, carry out troubleshooting for "S-11 Oil is in coolant."
Confirm recent repair history
Degree of use of
Operated for long period
machine
Fuel must be added more frequently
Coolant must be added more frequently
There is oil in coolant
Oil smells of diesel fuel
Oil is milky
When engine is started, drops of water come from muffler
When radiator cap is removed and engine is run at low idle, an abnormal number of bubbles appear, or
coolant spurts back
Exhaust smoke is white
Oil level in clutch or damper chamber of applicable machine is low
When compression pressure is measured, it is found to be low
Remove injector and inspect O-ring
Inspect cylinder block, liner directly
Inspect rear oil seal directly
Pressure-tightness test of oil cooler shows there is leakage
Remove and inspect supply pump directly
20
40 Troubleshooting
Cause
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Remedy
PC300, 350-8
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