Komatsu Fault Code
Free · no signupE042 / SPN 100 FMI 1
Automatic Level 3 Engine Shutdown
System
Lubrication
Symptom
Automatic Level 3 Engine Shutdown
Diagnosis & fix steps
LOGIC: Cummins QSK60 Main Engine Oil Gallery Pressure Low.
ACTION: Shut down immediately. Verify oil sump level and oil viscosity grade. Connect mechanical pressure gauge to main oil rail tap; inspect engine oil pump relief valve for stuck open debris.
Red Seal field insights
Mining Engine Safeguard: The engine controller initiates hard engine shutdown within seconds of oil pressure falling below engine speed-mapped critical thresholds.
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