LOADER FRAME 3Y4000 - Caterpillar

Oil Filter Differential Pressure
The ECM automatically warns the operator of high oil filter differential pressure. The default settings that are programmed at the factory are listed in Table 8.
Table 9
Oil Filter Differential Pressure
Parameter Default Setting
Warning setpoint 105 kPa (15 psi)
Warning delay 5 seconds
Hysteresis 10 kPa (1.5 psi)
Security level No required password If the oil filter differential pressure is above 105 kPa (15 psi) for five seconds, a warning will occur. To deactivate the warning, the oil filter differential pressure must be below 95 kPa (13.5 psi).Fuel Filter Differential Pressure
The ECM automatically warns the operator of high fuel filter differential pressure. The default settings that are programmed at the factory are listed in Table 10.
Table 10
Fuel Filter Differential Pressure
Parameter Default Setting
Warning setpoint 105 kPa (15 psi)
Warning delay 5 seconds
Hysteresis 10 kPa (1.5 psi)
Security level No required password If the fuel filter differential pressure is above 70 kPa (10 psi) for five seconds, a warning will occur. To deactivate the warning, the fuel filter differential pressure must be below 60 kPa (8.7 psi).Crankcase Pressure
The ECM will automatically perform the following functions if high crankcase pressure occurs:
Warning
Derating
Shut downThe default settings that are programmed at the factory are listed in Table 11.
Table 11
Crankcase Pressure
Parameter Default Setting
Warning setpoint 2 kPa (.3 psi)
Warning delay 3 seconds
Derate setpoint 6 kPa (.9 psi)
Derate delay 10 seconds
Maximum time of derating 480 seconds
Hysteresis 0.25 kPa (.036 psi)
Security level Required password
Maximum derating 25%
Shutdown setpoint 3.5 kPa (.51 psi)
Shutdown delay 3 seconds If the crankcase pressure is above 2 kPa (.3 psi) for three seconds, a warning will occur. To deactivate the warning, the crankcase pressure must be below 1.75 kPa (.254 psi).If the crankcase pressure is above 6 kPa (.9 psi) for 10 seconds, a derating will occur. The continuous schedule of the derating will reach 15 percent in 480 seconds.When the crankcase pressure is less than 5.75 kPa (.39 psi), the percent of the derating is decreased until full power is restored. However, if the crankcase pressure rises above the setpoint again, the derating resumes.If the crankcase pressure is above 3.5 kPa (.51 psi) for three seconds, a shutdown will occur.Note: The default settings result in a shutdown that occurs before a derating. These settings were selected for the reason that high crankcase pressure can occur rapidly. The settings can be reprogrammed.Aftercooler Coolant Temperature
Note: The following information concerns engines with separate circuit aftercooling. For engines with jacket water aftercooling, monitoring of the aftercooler coolant temperature is disabled. However, the jacket water coolant temperature is monitored for all engines.The ECM will automatically perform the following functions when high aftercooler coolant temperature occurs:
Warning
Derating
Shut downThe default settings that are programmed at the factory are listed in Table 12.
Table 12
Aftercooler Coolant Temperature
Parameter Default Setting
Generator set warning setpoint 102 °C (215 °F)
Marine auxiliary warning setpoint 50 °C (122 °F)
Warning delay 5 seconds
Derate setpoint 107 °C (225 °F)
Derate delay 5 seconds
Maximum time of derating 480 seconds
Hysteresis 3 °C (5.4 °F)
Security level Password