Case 721G Stage IV, Operator'S Manual

Page: 158 / 522

3 - CONTROLS AND INSTRUMENTS
Display Description Corrective Action
DEF/A
D
B
LUE
®
Level, Tank
EMPTY, Power
Limited
DEF/A
D
B
LUE
® level is
less than 5% of tank
volume ( 0% will be
displayed). Up to 65%
torque reduction and
40% engine speed
reduction within
40 min of engine
running time.
Refill DEF/A
D
B
LUE
® immediately and reset the system by cycling the
key switch OFF then ON.
DEF/A
D
B
LUE
®
Level, Tank
EMPTY, Ext.
Power Lim
When the tank has
reached
0% level,
there is a 50% torque
reduction, and engine
speed is limited to low
idle within an additional
30 min of engine run
time.
Refill DEF/A
D
B
LUE
® immediately and reset the system by cycling the
key switch OFF then ON.
Poor DEF/
A
D
B
LUE
®
Quality
Detected
Power Limited
DEF/A
D
B
LUE
®
quality/concentration
is questionable
60 min after the initial
warning. Up to 65%
torque reduction and
40% engine speed
reduction within
40 min of engine
running time.
Drain DEF/A
D
B
LUE
® tank, clean and refill with approved DEF/A
D
B
LUE
®
solution. Contact your local authorized dealer if failure persists.
NOTE: see “ DEF/A
D
B
LUE
® tank refilling” section for important tank draining
information.
DEF/A
D
B
LUE
®
Injection Failed
Ext. Power
Lim
SCR fault/failure
detected. Up to
65%
torque reduction and
50% engine speed
reduction within
30 min .
Contact your local authorized dealer for repair, cycle key, or validation
re-start.
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