MTU Gas engine8 V 4000 L62 Operating Instructions Manual page 144

020 – SS T-Exhaust A
Yellow alarm.
Associated parameter 2.0126.932
Cause
Exhaust gas temperature (A
side) after turbine too high (limit
value 2). Incorrect ignition timing,
mixture too lean or too rich,
damage to turbine.
021 – HI T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.931
Cause
Exhaust gas temperature (B
side) after turbine too high (limit
value 1). Incorrect ignition timing,
mixture too lean or too rich,
damage to turbine.
022 – SS T-Exhaust B
Yellow alarm.
Associated parameter 2.0127.932
Cause
Exhaust gas temperature (B
side) after turbine too high (limit
value 2). Incorrect ignition timing,
mixture too lean or too rich,
damage to turbine.
025 – HI P-Diff-Lube Oil
Yellow alarm.
Associated parameter 2.0154.931
Cause
Pressure loss via oil filter too
high (limit value 1).
144 | Troubleshooting | MS150032/02E 2012-07
ZKP-Number:
Corrective action
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 52).
3. Check mixture setting.
4. Check spark plugs.
ZKP-Number:
Corrective action
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 52).
3. Check mixture setting.
4. Check spark plugs.
ZKP-Number:
Corrective action
1. Check exhaust turbocharger.
2. Check ignition timing (→ Page 52).
3. Check mixture setting.
4. Check spark plugs.
ZKP-Number:
Corrective action
1. Replace oil filter (→ Page 73).
2. If this fault message occurs again after unexpectedly short filter
runtime, check oil filter for deposits, change oil if required
(→ Page 71).