MTU Gas engine8 V 4000 L62 Operating Instructions Manual page 131

153234 – HI Knock Integrator B4
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153235 – HI Knock Integrator B5
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153236 – HI Knock Integrator B6
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153237 – HI Knock Integrator B7
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153238 – HI Knock Integrator B8
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 52).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 52).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 52).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 52).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 52).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
MS150032/02E 2012-07 | Troubleshooting | 131