MTU 8 V 4000 Lx2 xx Operating Instructions Manual page 99

058 – SS P-Coolant
Red alarm. Engine shutdown.
Associated parameter 2.0101.922
Cause
Coolant pressure after engine
too low (limit value 2).
Insufficient volume flow, static
pressure too low.
063 – HI P-Crankcase
Yellow alarm.
Associated parameter 2.0106.931
Cause
Crankcase pressure too high
(limit value 1). Restrictor valve in
crankcase breather is closed too
far, air filter is defective, oil
separator is clogged, piston
rings are seized, other damage
to crank drive.
064 – SS P-Crankcase
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
far, 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.
Corrective action
u Check engine coolant circuit (pressure and flow).
Corrective action
1. Check crank drive:
• Bar engine (→ Page 129).
• Endoscope combustion chambers from bottom dead center
to top dead center.
2. Check air filter for contamination, replace if contamination is
visible (→ Page 151).
3. Check setting of blow-by restrictor valve.
4. Check oil separator condition, replace as necessary
(→ Page 131).
Corrective action
1. Check crank drive: Bar engine (→ Page 129), endoscope
combustion chambers from bottom dead center to top dead
center.
2. Check air filter for contamination, replace if contamination is
visible (→ Page 151).
3. Check setting of blow-by restrictor valve.
4. Check oil separator condition, replace as necessary
(→ Page 131).
Corrective action
u Check engine coolant circuit.
MS150114/01E 2015-03 | Troubleshooting | 99