Oil Level Rises (Entry Of Coolant Or Fuel) - Komatsu WA250-6 Shop Manual

SEN03850-00
S-13 Oil level rises (Entry of coolant or fuel)
General causes why oil level rises
Coolant in oil (milky)
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Fuel in oil (smells diluted diesel fuel)
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a If oil is in coolant, carry out troubleshooting for "S-11 Oil is in coolant"
Confirm recent repair history
Degree of use of 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 appears,
or coolant spurts back
Exhaust smoke is white
Oil level in damper chamber is low
Oil level in hydraulic tank of machine is low
When compression pressure is measured, it is found to be low
Remove injector and inspect O-ring.
Inspect cylinder block directly
Inspect rear oil seal directly
Pressure-tightness test of oil cooler shows there is leakage
Remove and inspect supply pump directly
Inspect seal of auxiliary equipment directly
20
40-600
Operated for long period
600 Troubleshooting of engine (S-mode)
S-13 Oil level rises (Entry of coolant or fuel)
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Remedy
WA250, 250PZ-6
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Causes
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