ELBOW (exhaust) 8N3056 - Caterpillar

Table 6
Low Fuel Pressure
Pressure (kPa (gauge))
0 350 400 450 500 700
RPM Derate (percent)
0 0 0 0 0 0 0
1000 0 0 0 0 0 0
1250 50 50 30 20 0 0
2000 50 50 30 20 0 0
Table 7
High Coolant Temperature
Temperature (°C) Derate (percent)
98 25
101 50
103 75
105 100
Table 8
High Fuel Supply Temperature
Temperature (°C) Derate (percent)
65 20
70 50
Table 9
High Air Inlet Temperature
Temperature (°C) Derate (percent)
72 10
74 20
76 30
78 40
80 50
82 60
84 70
Table 10
Air Filter Differential Pressure
Pressure (kPa (gauge)) Derate (percent)
6.5 0
7.0 2
8.0 4
9.0 6
10.0 8
11.0 10
Table 11
High Fuel Rail Temperature
Temperature (°C) Derate (percent)
100 20
105 50
Table 12
High Aftercooler Temperature
Temperature (°C) Derate (percent)
72 10
76 20
80 30
84 50 Separate timers are used in the ECM for each response that is associated with a parameter. If a trip point is reached, the timer for that event is started.For some parameters, the setpoint for the shutdown is less than the setpoint for the warning. In that case, the warning is not activated.
Table 13
Low Coolant Pressure
Engine rpm Warning Pressure Shutdown Pressure
700 31.5 kPa (4.57 psi) 11.5 kPa (1.67 psi)
1000 46.7 kPa (6.77 psi) 26.7 kPa (3.87 psi)
1200 57 kPa (8.3 psi) 37 kPa (5.4 psi)
1400 67.3 kPa (9.76 psi) 47.3 kPa (6.86 psi)
1600 77.5 kPa (11.24 psi) 57.5 kPa (8.34 psi)
1800 87.8 kPa (12.74 psi) 67.8 kPa (9.83 psi)