GASKET-FLANGE 7C5485 - Caterpillar

Conditions Which Generate This Code:
Illustration 1 g00798215
System Schematic For Fuel Control Relay On ETR SystemsThe CID 0566 alerts the operator that the GSC+ did not control the engine shutdown. The GSC+ normally controls all engine shutdowns for both normal operation and fault shutdowns. If an outside influence causes an engine shutdown, the GSC+ shows a CID 0566. There is only one failure mode for a CID 0566. This failure mode is FMI 07. FMI 07 is an improper mechanical response.The diagnostic code causes the following sequence of events:
The GSC+ detects a drop in engine speed from the rated speed to 0 RPM. The GSC+ has not called for a shutdown.
The GSC+ determines that no engine speed sensor fault is present.
The GSC+ will generate a CID 0566 FMI 07. The GSC+ will then disable the engine from running or starting.Note: An unexpected shutdown fault (CID 0566) will initiate a signal to the shunt trip circuit breaker.The possible cause of a CID 0566 FMI 07 is listed below.
A component that is not under the control of the GSC+ has caused an engine shutdown.The GSC+ treats a CID 0566 FMI 07 as a shutdown fault. Clear the diagnostic code from the fault log after troubleshooting is complete.Note: This procedure requires many voltage measurements during simulated engine cranking. Remove fuse "F4" which is the fuse for the starting motor. The fuse is located on the relay module. The fuse is removed in order to prevent activating the starting motor. Engine cranking does not occur. Voltage measurements must be made quickly before the total cycle crank time (setpoint P017) elapses. The total cycle crank time is 90 seconds. An overcrank fault will occur after 90 seconds. See Systems Operation, "Engine/Generator Programming OP5-0". The overcrank shutdown indicator will FLASH. In order to continue with a voltage measurement, the overcrank fault must be reset by turning the engine control switch (ECS) to OFF/RESET. Then, turn the ECS to START.Note: If the generator set is equipped with an electronic governor, also check the engine speed sensor. See the Troubleshooting, "CID 0190" sections of this manual.Test Step 1. PERFORM AN INITIAL CHECK FOR OTHER ACTIVE DIAGNOSTIC CODES.Note: Make sure that there are NO OTHER ACTIVE DIAGNOSTIC CODES. This means that there are no diagnostic codes which are showing on the upper display. This means that no shutdown or alarm indicators are flashing. Failure to make sure that there are NO OTHER ACTIVE DIAGNOSTIC CODES may result in erroneous troubleshooting and needless replacement of parts. The operator will make many voltage measurements while the GSC+ is attempting to crank the engine. If the GSC+ detects other faults, the GSC+ will prevent starting by shutting off the fuel and air to the engine. The resulting voltage measurements would then be the exact opposite of the voltage which is expected in the procedures.
Check the fuel level and quality.
Check for a plugged fuel filter.
Check for a plugged air filter.Expected Result:The previous checks are OK.Results:
OK - No problem was found after the