MTU 12 V 4000 L63 Operating Instructions Manual page 132

570 – L1 AI CAN Max Retarded Timing
Yellow alarm.
Associated parameter 2.1200.931
Cause
The cylinder set to maximum
retarded timing due to knocking
has violated the first limit value.
571 – L2 AI CAN Max Retarded Timing
Yellow alarm. Power reduction.
Associated parameter 2.1200.932
Cause
The cylinder set to maximum
retarded timing due to knocking
has violated the second limit
value. Power reduction is
initiated.
572 – L3 AI CAN Max Retarded Timing
Red alarm. Engine shutdown.
Associated parameter 2.1200.932
Cause
The cylinder set to maximum
retarded timing due to knocking
has violated the third limit value.
583 – AL GLS closed
Red alarm. Engine shutdown.
Associated parameter 2.0451.005
Cause
Generator load switch does not
open when engine stops. Engine
is motoring.
132 | Troubleshooting | MS150058/01E 2012-07
ZKP-Number:
Corrective action
1. Check emissions.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
ZKP-Number:
Corrective action
1. Check emissions.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
ZKP-Number:
Corrective action
1. Check emissions.
2. Check ignition timing (→ Page 137).
3. Check combustion chamber.
4. Check gas quality if feasible (methane number).
ZKP-Number:
Corrective action
u Check generator load switch.