Machine Only Operates in Power Mode
This procedure should be performed when the machine is in the Power Mode and the Machine ECM will not activate the Economy Mode
Show/hide table
| Troubleshooting Test Steps | Expected Result | Results |
|---|---|---|
| 1. Check For Communications Errors A. Check the Monitor for an active communication error Event. The communication error Events do not have EID number assigned. The Monitor will display a communication error message on the display when one of the following errors occurs. 1. Machine Controller Communication 2. Engine Controller Communication 3. Soft Switch Panel Communication 4. CAN Data Link Error |
There are no active communications errors present. |
OK - There are no active communications errors present. Proceed to Test Step 2. NOT OK - An active communication error is displayed on the Monitor. Repair: All communications errors require inspection of the circuits of the CAN Data Link. Refer to Systems Operation, "Warning Operation". Troubleshooting for communication errors is discussed under the title "Monitor Communication Errors". Proceed to Test Step 4. |
| 2. Attempt To Engage The Economy Mode Note: Economy mode is the default mode at key on irrespective of the previous mode. A. Press the Power Mode Button on the SSP to attempt to activate the Economy Mode and illuminate the corresponding LED indicator. |
The LED for the Economy Mode turns ON steady and does not flash. |
OK - The LED for the Economy Mode turns ON steady and does not flash. The ECM has activated the Economy Mode. If the operator still perceives that the hydraulic response for the Power Mode is active. Proceed to Test Step 3 NOT OK -The LED for the Economy Mode will not turn ON or the LED for the Economy Mode turns ON and flashes. The ECM will not activate the Economy Mode. Proceed to Test Step 4. |
| 3. Perform Main Pump Testing A. Test that the maximum engine and maximum main pump power are correct. Refer to Testing and Adjusting, UENR5282, "Main Pump - Test". If the test values do not meet proper specifications, further testing will be needed. Follow all recommendations to help determine the root cause of the hydraulic symptom. |
Hydraulic testing and adjustments have been performed and have improved the hydraulic operation of the machine. |
OK - Hydraulic testing has been performed and has resulted in improved response of the hydraulic operation of the machine Proceed to Test Step 4. NOT OK -Hydraulic testing has been performed. The hydraulic operation of the machine is still not correct. Repair:The ECM and the electrical components appear to be operating correctly. The problem may be caused by the hydraulic components on the machine. Refer to the Service Manual for your machine and check documentation for the hydraulic operation of the machine. After hydraulic system repairs or adjustments are performed, the Main Pump Power Shift Pressure Solenoid Calibration must be performed in order to enable superior performance. Proceed to Test Step 4. |
| 4. Check The Status Of The Power Mode Function A. Turn the key start switch to the OFF position. Wait a minute. B. Turn the key start switch to the ON position. C. Press the Economy Mode button on the SSP in order to activate the Economy Mode. D. Move the Engine Speed Dial to position 10. E. Operate the implements. |
The SSP LED indicator for the Economy Mode is ON steady and the hydraulic response indicates that the Economy Mode is active. |
OK - The SSP LED indicator for the Economy Mode is ON steady and the hydraulic response indicates that the Economy Mode is active. Repair:The Power Mode function is working correctly. One of the machine conditions may not have initially been correct in order to allow the ECM to activate the Economy Mode. STOP NOT OK -The LED for the Economy Mode will still not turn ON or the LED for the Economy Mode still turns ON and flashes. The ECM will not activate the Economy Mode. Repair:A failure of the ECM is unlikely. Verify that all possible causes of this failure have been investigated. Exit this procedure and perform this procedure again. If the ECM will not activate Economy Mode when all of the machine conditions are correct, flash the Machine ECM with the latest version of software. Ensure that you have the latest version of software for your specific machine and ECM. Refer to the Testing and Adjusting, "Electronic Control Module (ECM) - Flash Program" section of this manual for the correct procedure. If the ECM still will not activate the Economy Mode after flashing the latest software to your ECM, contact the Technical Communicator at your dealership for possible consultation with Caterpillar. STOP |
Caterpillar Information System:
730C and 730C EJECTOR Articulated Trucks Pressure Sensor (NRS Differential) - Remove and Install
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Power Train Final Drive Spindle and Service Brake - Disassemble
AP1055F Asphalt Paver Machine Systems Fuel Lines
730C and 730C EJECTOR Articulated Trucks Pressure Sensor (NRS Absolute) - Remove and Install
M314F, M316F, M318F, M320F and M322F Wheeled Excavators Machine Only Operates in Economy Mode
C3.4B Industrial Engine Reference Information
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Piston Pump (Implement) - Test and Adjust
C3.4B Industrial Engine Plate Locations and Film Locations
AP1000F Asphalt Paver Machine Systems Communication Electronic Control Module (Product Link)
M314F, M316F, M318F, M320F and M322F Wheeled Excavators Hydraulic Response Is Poor
C3.4B Industrial Engine Model View Illustrations
730C and 730C EJECTOR Articulated Trucks Venturi Tube - Remove and Install
M314F, M316F, M318F, M320F and M322F Wheeled Excavators Machine Only Operates in Travel Mode
AP1000F Asphalt Paver Machine Systems Communication Electronic Control Module (Product Link)
MH3022, MH3024 and MH3026 Material Handlers Hydraulic System Case Drain (Main Pump) - Test
AP1000F Asphalt Paver Machine Systems Auger Conveyor - Mounting
MH3022, MH3024 and MH3026 Material Handlers Hydraulic System Main Pump - Test - Test without Flow Meter
MH3022, MH3024 and MH3026 Material Handlers Hydraulic System Main Pump (Destroke Pressure) - Test and Adjust
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Piston Pump Cutoff Pressure (Hydraulic Fan) - Test and Adjust
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Piston Pump Margin Pressure (Hydraulic Fan) - Test and Adjust
The Third Clutch Friction Disc May Fail on Certain 777 Off-Highway Trucks{3054, 3155, 3160} The Third Clutch Friction Disc May Fail on Certain 777 Off-Highway Trucks{3054, 3155, 3160}
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Hydraulic Fan Speed - Test and Adjust
966M XE and 972M XE Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Pressure Tap Locations
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Power Train Final Drive Spindle and Service Brake - Disassemble