MTU 12 V 4000 L63 Operating Instructions Manual page 91

153239 – HI Knock Integrator B9
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153240 – HI Knock Integrator B10
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153241 – HIHI Knock Integrator A1
Red alarm. Initiated by SAM.
Cause
Emergency stop due to knocking
detected in this cylinder.
153242 – HIHI Knock Integrator A2
Red alarm. Initiated by SAM.
Cause
Emergency stop due to knocking
detected in this cylinder.
153243 – HIHI Knock Integrator A3
Red alarm. Initiated by SAM.
Cause
Emergency stop due to knocking
detected in this cylinder.
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
MS150058/01E 2012-07 | Troubleshooting | 91