Scania DC13 XPI - Reaction to Low Reductant Level; Reaction to Fault in SCR System

Starting and running
OPM 200 en-GB 28
© Scania CV AB 2020, Sweden
Reaction at low reductant level – Stage
IIIB/IV/Tier 4i/Tier 4f
The engine resumes normal torque after reduct-
ant has been filled to a level of at least 20%.
Reaction at low reductant level – Stage V
Note:
Its behaviour and the symbol depend on the in-
stallation of the engine in the machine. The Sca-
nia recommendation will lead to the behaviour
and symbol described here, but this may differ
between different machines.
The engine resumes normal torque after reduct-
ant has been filled to a level of at least 20%.
Reaction to fault in SCR system – Stage
IIIB/IV/Tier 4i/Tier 4f
Reductant
level
Warning
lamp
Torque reduction
1
1. Applies only to engines certified according to Tier 4.
20% Constant
light
10% Flashing Torque is reduced by
1% per minute to
70 % of the highest
torque.
0% Flashing rap-
idly
Torque is reduced to
0% (low idling)
within 2-10 minutes.
Level Warning lamp Torque and
speed control
20% Constant light -
10% Flashes slowly
(½ Hz)
Torque is reduced
by 1% per minute
to 75 % of the
highest torque.
0% Flashes rapidly
(2 Hz)
Torque is reduced
by 1% per minute
to 50% of the
highest torque.
The engine speed
is reduced to 60%
of the nominal en-
gine speed.
319 562
Symbol for low reductant level.
319 562
Symbol for low reductant level.
319 563
Symbol for fault in SCR system.