MTU 20V4000L63 Operating Instructions Manual page 93

153229 – HI Knock Integrator A9
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153230 – HI Knock Integrator A10
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153231 – HI Knock Integrator B1
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153232 – HI Knock Integrator B2
Yellow alarm. Initiated by SAM.
Cause
Readjustment of ignition timing
beyond a limit value because
knocking was detected in this
cylinder.
153233 – HI Knock Integrator B3
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 149).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 149).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 149).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 149).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
Corrective action
1. Check emission values.
2. Check ignition timing (→ Page 149).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
MS150059/02E 2013-10 | Troubleshooting | 93