DEF solution quality, alternative 2
100%
0%
1
B
A
2
3
4
5
30
min
P 18674
00
60
min
60
min
60
min
30
min
A. Engine rpm and torque
B. Time axis
1 A fault is detected and the warning lamp lights up.
2 After 60 minutes the warning lamp will flash.
3 After a further 30 minutes engine speed drops to idle.
4 Depending on the installation, it is possible to manually override the system action and run the engine at full
power for 30 minutes. Engine will speed again drop to idle; service tools are required to reset the system.
5 If the fault is not remedied the engine will run at full power for 60 minutes after the first restart, and then drop
to idle.
6 After the second restart the engine will run at full power for 60 minutes. Engine will speed again drop to idle;
service tools are required to reset the system.
Fault handling
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