M11 – Engine Will Not Reach Rated Speed (RPM)

Symptom Tree  

Keyswitch circuit is malfunctioning

Check the vehicle, equipment, or vessel keyswitch circuit. Refer to a Cummins Authorized Repair Location.

 

Tachometer is not calibrated or is malfunctioning

Compare the tachometer reading with a handheld tachometer or an electronic service tool reading. Calibrate or replace the tachometer as necessary. Refer to the OEM service manual.

 

Electronic fault codes are active

For instructions on how to read active fault codes, refer to Procedure 101-007 (Electronic Controlled Fuel System) in Section 1. If fault codes are active, contact a Cummins Authorized Repair Facility.

 

Drivetrain is not correctly matched to the engine

Check for correct gearing and drivetrain components. Refer to the OEM service manual.

 

Engine power output is low

Refer to the Engine Power Output Low symptom tree.

 

Fuel grade is not correct for the application or the fuel quality is poor

Operate the engine from a tank of high-quality fuel. Refer to Procedure 018-002 (Fuel Recommendations and Specifications) in Section V.

 

Fuel inlet restriction

Check for fuel inlet restriction. Contact a Cummins Authorized Repair Facility.

 

Overhead adjustments are not correct

Measure and adjust the overhead settings. Refer to Procedure 003-004 (Overhead Set) in Section 5.

 

Programmable parameters or selected features are not correct

Check the programmable parameters and the selected features with an electronic service tool. Set the parameters and features again if necessary. Refer to a Cummins Authorized Repair Location.

 
Contact a Cummins Authorized Repair Facility

Last Modified:  19-Nov-2004