Trouble shooting table
Lube oil pressure varies / too low
D D D D D D D D D D
Oil level in oil pan too low D Dipstick marked correctly? Oil level in oil pan too high See Operator’s Manual Max. inclination exceeded Engine temperature too high Oil viscosity unsuitable (viscosity too D See ”Fuels, Lubricants ...” low) Oil in oil pan too thin (mixed with condensation or fuel) Heavy bearing wear Oil pump gears heavily worn Safety valve in oil circuit defective (does not shut, spring fatigued or broken) Oil pressure gauge defective
Lub oil pressure too high
D Engine cold D See ”Fuels, Lubricants ...” D Oil viscosity unsuitable (viscosity too high) D Safety valve in oil circuit defective (does not open) D Oil pipes/oil galleries clogged D Oil pressure gauge defective
Lube oil consumption too high
D Leaks in the lube oil circuit, particularly at the turbocharger and oil cooler D Oil level in oil pan too high D Lube oil quality does not satisfy regulations D Turbocharger wear D Piston rings heavily worn D Valve guides heavily worn
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D See ”Fuels, Lubricants ...” D Measure play of rotor