MTU Gas engine8 V 4000 L62 Operating Instructions Manual page 148

063 – HI P-Crank Case
Yellow alarm.
Associated parameter 2.0106.931
Cause
Crankcase pressure too high
(limit value 1). Restrictor valve in
crankcase breather is closed too
much, air filter is defective, oil
separator is clogged, piston rings
are seized, other damage to
crank drive.
064 – SS P-Crank Case
Red alarm. Engine shutdown.
Associated parameter 2.0106.932
Cause
Crankcase pressure too high
(limit value 2). Restrictor valve in
crankcase breather is closed too
much, air filter is defective, oil
separator is clogged, piston rings
are seized, other damage to
crank drive.
067 – HI T-Coolant
Yellow alarm.
Associated parameter 2.0120.931
Cause
Coolant temperature after engine
too high (limit value 1). Engine
coolant pump failure, volumetric
flow too low, air in engine
coolant circuit.
148 | Troubleshooting | MS150032/02E 2012-07
ZKP-Number:
Corrective action
1. Check crank drive:
• Crank engine (→ Page 48).
• Endoscope combustion chambers from bottom dead center to
top dead center.
2. Check air filter for contamination, replace if contamination is
visible (→ Page 68),
3. Check setting of BlowBy restrictor valve.
4. Check oil separator condition, replace if necessary (→ Page 50).
ZKP-Number:
Corrective action
1. Check crank drive:
• Crank engine (→ Page 48).
• Endoscope combustion chambers from bottom dead center to
top dead center.
2. Check air filter for contamination, replace if contamination is
visible (→ Page 68),
3. Check setting of BlowBy restrictor valve.
4. Check oil separator condition, replace if necessary (→ Page 50).
ZKP-Number:
Corrective action
u Check engine coolant circuit.