TANK AS-FUEL 3505620 - Caterpillar

Illustration 43 g03736321Note: Maximum operating load is the load % indicated on the ECM panel.
Illustration 44 g03736323Note: Maximum operating load is the load % indicated on the ECM panel.
Check Fuel Correction Factor (FCF)
The FCF needs to be at 100 percent 5 percent above 50 percent load. Adjust the fuel quality value (BTU) only if the FCF is outside the 5% range.Recheck the turbocharger speed. If using Procedure "A" recheck the compressor bypass actuator position. If using Procedure "B" recheck turbocharger speed. If out of specification, return to step 8.
Check EmissionsBy using ET, monitor the NOx PPM. The NOx PPM screen will display the value shown on the analyzer ( 10 PPM) for a 5 minute period. If not, return to step 8.
Remove The Turbocharger Speed Sensor
Stop the engine and Allow To Cool! Then access the sensor and the wiring harness.
Remove the turbocharger speed sensor.
Remove the speed sensor by using a deep well socket to prevent damage.
Inspect the threaded plug and the O-ring. Replace the o-ring if necessary with 8T-9521 O-Ring Seal. Verify that the plug is free of debris.
Install the threaded O-ring plug and torque plug to 10 N m (7 lb ft) to 15 N m (11 lb ft).
Start The Engine And Set To The Desired Speed And LoadNote: Recommended minimum desired cranking speed is 150 rpm to 200 rpm and no more than 25% of maximum load at startup.Adjusting the Governor
The response of the throttle actuator can be adjusted with Cat ET. Use Cat ET to change these parameters:
"Governor Gain Factor"
"Governor Stability Factor"
"Governor Compensation Factor"Gain - Gain determines the speed of the controls response in adjusting for the difference between the desired condition and the actual condition. Increasing the gain provides a faster response to the difference between the desired condition and the actual condition.Stability - Stability controls the speed for elimination of the error in the difference between the desired condition and the actual condition. The stability dampens the response to the error. Increasing the stability provides less damping.Compensation - Compensation is used to adjust the time delay between the control signal and the movement of the actuator. If the compensation is too low, the engine speed will slowly hunt. If the compensation is too high, the engine speed will rapidly fluctuate.Note: The default value for these parameters is "0". The default values should be sufficient for initial start-up. However, the values may not provide optimum performance.These adjustments are provided to obtain optimum responses to changes in the engines load and in the engines speed. The adjustments also provide stability during steady state operation.If you have a problem with instability, always investigate other causes before you adjust the governor. For example, diagnostic codes and unstable gas pressure can cause instability.When you adjust the governor, make sure that the "Grid Status" parameter is "Off".To change the "Governor Gain Factor" or the "Governor Stability Factor" , use the "Real Time Graphing" feature on the "Information" drop-down menu of Cat ET. The graph provides the best method