TUBE- 4409005 - Caterpillar

Shutdowns
A shutdown secures the fuel. An emergency shutdown also secures the air to the engine.A fuel shut off may be located in the actuator for fuel. A fuel shut off may be an input to the governor control. When the fuel shutoff is active, the injectors are driven to the off position. This secures the fuel.The air shutoff solenoid secures the air. When this solenoid is activated compressed air flows to the air damper. The air releases a pin. When the pin is released, a spring closes the air damper. This secures the combustion air supply from the turbochargers to the aftercooler.Note: The air damper must be MANUALLY reset before the engine can be restarted. The control panel must also be reset with the "RESET" switch before the control will allow starting. The panel may not be reset until the engine has stopped rotating. Determine the cause of the shutdown and correct the problem prior to engine operation.
Table 3
Description of Shutdown    Time Delay    Analog Setpoint    Contact    
"Auxiliary 4-20ma #1 shutdown"     5 sec     Set by user        
"Auxiliary 4-20ma #2 shutdown"     5 sec     Set by user        
"Auxiliary shutdown #1 shutdown"     0 sec         X    
"Auxiliary shutdown #2 shutdown"     0 sec         X    
"Auxiliary temperature #1 shutdown"     5 sec     Set by user        
"Auxiliary temperature #2 shutdown"     5 sec     Set by user        
"Crankcase pressure high shutdown"     50 mS         X    
"Customer shutdown"     0 sec         X    
"Emergency stop shutdown"     0 sec         X    
"Engine overspeed shutdown"     50 mS     113% Rated     X - ESS    
"Generator drive bearing temperature high shutdown"     5 sec    
95 °C (203 °F)        
"Generator non-drive bearing temperature high shutdown"     5 sec    
95 °C (203 °F)        
"High speed low oil pressure shutdown"     50 mS         X    
"Jacket water outlet temperature high shutdown"     3 sec    
109 °C (228 °F)        
"Jacket water outlet temperature high shutdown""OPTIONAL"     3 sec    
109 C (228 °F)        
"Low speed low oil pressure shutdown"     50 mS         X    
"Lube oil to engine pressure low shutdown"     3 sec    
105/260 kPa (15/38 psi)        
"Oil mist detector shutdown"     5 sec         X    
"Particle detector shutdown"     300 sec         X    Conditions must be present in order for an shutdown to be present. Table 4 gives information on the conditions that are needed in order to generate the shutdown.
Table 4
Description of Shutdown    Crank Terminate +9 sec    Oil Step    ECS Not in Off/Reset    Fuel Relay OFF    Sensor Failure Inactive    Other    
"Auxiliary 4-20ma #1 shutdown"     X