PLATE-CLUTCH 3914047 - Caterpillar

Probable Causes
The probable root causes are listed in order below:
Diagnostic codes
Intake valve actuation system
Cold mode
Customer specified parameters (normal operation)
Electronic system problem
Fuel supply
Fuel recirculation system (if equipped)
Leakage in air-to-air aftercooler core
Air inlet system or exhaust system
Individual malfunctioning cylinder
Torque limit switchRecommended Actions
Diagnostic Codes
Connect the Caterpillar Electronic Technician (ET) to the data link connector.
Check for active codes and/or logged codes. Troubleshoot any codes that are present before continuing with this procedure. Note: Certain diagnostic codes may cause poor performance. Also, certain diagnostic codes will limit the engine speed to low idle.Intake Valve Actuation System
Start the engine.
Monitor the status screens on Cat ET.
Check for an "Intake Vlave System Starting" flag at the top left of any status screen. Note: The engine will not receive full power until the "Intake Vlave System Starting" flag becomes inactive.Cold Mode
Start the engine.
Monitor the status screens on Cat ET.
Check for a "Cold Mode" flag at the top of any status screen. Note: The engine will not receive full power until the "Cold Mode" flag becomes inactive.Customer Specified Parameters
Verify that the complaint is not normal operation (programmed parameter).
Access the "Configuration" screen on Cat ET.
Check the following parameters:
"Rating Number"
"Top Engine Limit"
"Vehicle Speed Limit"
"Lower Gears Engine RPM Limit"
"Intermediate Gears Engine RPM Limit"
"Gear Down Protction Engine RPM Limit"Note: If the "Rating Number" is programmed to 0, the engine is limited to 119 kW (160 hp).
Set each parameter to the parameter's maximum value one at a time and determine whether the problem is corrected. Electronic System Problem
Monitor the fuel position, the rated fuel limit and the FRC fuel limit. While the vehicle is operating under full load, the parameters should meet the following conditions:
The fuel position is equal to the rated fuel limit.
The fuel position is less than the FRC fuel limit.
If the fuel position is equal to the rated fuel limit and if the fuel position is less than the FRC fuel limit, the electronics are operating correctly. Go to Step 3.
If the fuel position is not equal to the rated fuel limit and/or if the fuel position is not less than the FRC fuel limit, perform the following tests in order:
When the engine is off, turn the key switch to the ON position. Check the boost pressure on the status screen. When the engine is off, the correct boost pressure is 0 kPa (0 psi).
Monitor the status of the accelerator pedal position sensor. Operate the engine at high idle with the vehicle in Neutral. If the engine cannot reach the programmed "Top Engine Limit", check the duty cycle for the accelerator pedal position sensor in order to ensure that the duty cycle is within calibration (75 to 90 Percent at high idle).If the accelerator pedal position is unstable, check the duty cycle of the accelerator pedal position sensor. Check the duty cycle by slowly operating the accelerator pedal in order to verify that the accelerator pedal position sensor is within calibration. The accelerator pedal position sensor is within calibration when both of the following conditions are met:
10 to 22 percent