Paccar MX Series - Thresholds and Reactions

PEC017
5/3/2018 Page 33 of 105
Thresholds and Reactions
Thresholds
Value
“Warning”
Reaction
“Derate”
Reaction
“Shutdown” Reaction
Coolant
Temperature
Above
237 ˚F
Stop Engine
Light
Stop Engine
Light
Vehicle Speed Limit and
Engine Shutdown
Coolant Level
Below
0%
Stop Engine
Light
Stop Engine
Light
Vehicle Speed Limit and
Engine Shutdown
Oil Pressure
Below
9 psi
Stop Engine
Light
Stop Engine
Light
Vehicle Speed Limit and
Engine Shutdown
Oil Temperature
Above
266 ˚F
Stop Engine
Light
Stop Engine
Light
Vehicle Speed Limit and
Engine Shutdown
Battery Voltage
Below
6 V
Stop Engine
Light
Stop Engine
Light
Vehicle Speed Limit and
Engine Shutdown
Coolant Pump
Stall
-
Stop Engine
Light
Torque
Derate
Torque Derate
Aftertreatment
Limp Home
Soot Load
>8.2 g/L
Torque
Derate
Torque
Derate
Torque Derate and
Vehicle Speed Limit
Soot Load
>9.2 g/L
Torque
Derate
Torque
Derate
Torque Derate and
Vehicle Speed Limit
Driving > 5
mph during HC
Desorb
Request
Torque
Derate
Torque
Derate
Torque Derate and
Vehicle Speed Limit
Aftertreatment
Shutdown
Request
DOC Outlet >
800˚C OR
DOC Outlet –
DOC Inlet >
500˚C
Torque
Derate
Torque
Derate
Torque Derate, Vehicle
Speed Limit, and Engine
Shutdown
DOC Inlet >
687˚C
Torque
Derate
Torque
Derate
Torque Derate, Vehicle
Speed Limit, and Engine
Shutdown
DOC Outlet >
650˚C
Torque
Derate
Torque
Derate
Torque Derate, Vehicle
Speed Limit, and Engine
Shutdown