Any warning should be investigated immediately,
contact your Perkins dealer or your Perkins
Distributor . The system is equipped with an override
option. Once the override option has been used and
the fault still exist, the engine will be locked in de-rate
or shutdown mode.
World-Wide SCR Warnings
• At Level 1 the emission malfunction lamp will be on
solid.
• At Level 2 the emission malfunction lamp will flash.
• At Level 3 the emission malfunction lamp will flash
and the stop lamp will activate.
• At Level 3 the engine may shut down or operate at
1000 Revolutions Per Minute (RPM).
• At Level 3 cycling the keyswitch will give 20
minutes override at full power, before the
shutdown or idle is triggered. The emission
malfunction lamp will continue to flash .
Table 4
World-Wide
DEF Quality Tampering and Dosing Interruption
-
Normal operation Level 1 Level 2 Level 3 Override
Inducement Time
First occurrence
None 2.5 Hours 70 minutes Shut down or idle
Until fault heals
Cycling the keyswitch
will give 20 minutes of
full power
The system must be fault free for 40 hours before the system will reset to zero. If the fault is intermittent, and returns within the 40 hours, then the
repeat inducement time will be triggered.
The override can only be used once
Repeat Inducement
time
None 5 minutes 5 minutes Shut down or idle
Until fault heals
Cycling the keyswitch
will give 20 minutes of
full power
Inducement None None None
Notification None Emission malfunction
lamp will be on solid
Emission malfunction
lamp will flash
Emission malfunction
lamp will flash
The stop lamp will be
on solid
Emission malfunction
lamp will flash
Contact your Perkins dealer or your Perkins Distributor at level 1 warning, do not let the fault develop.
Table 5
World-Wide
NOx Reduction System Fault
-
Normal operation Level 1 Level 2 Level 3 Override
Inducement Time
First occurrence
None 35 Hours 60 minutes Shut down or idle
Until fault heals
Cycling the keyswitch
will give 20 minutes of
full power
(continued)
38 SEBU8732
Features and Controls
Selective Catalytic Reduction Warning System
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