1261709 SWITCH AS-ROCKER Caterpillar parts
826G, 966G II, 972G II, 980G
Rating:
Alternative (cross code) number:
CA1261709
126-1709
1261709
CA1261709
126-1709
1261709
LANDFILL COMPACTOR, WHEEL LOADER,
Compatible equipment models: 1261709:
Number on catalog scheme:
33
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Information:
Probable Causes
Air inlet and exhaust system
Engine speed/timing sensor
Atmospheric pressure sensor
Intake manifold (boost) pressure sensor
"Fuel Position" and/or "FRC Fuel Limit"
Flash file
Fuel quality
Valve adjustmentRecommended Actions
Air Inlet and Exhaust System
Check the air inlet system for restrictions and/or for leaks.
Check for an air filter restriction.
Check for derates and for alarms.
Perform a visual inspection of the system for restrictions and/or for leaks.
Ensure that the turbocharger has not failed.
Check the exhaust system for restrictions.
Repair any leaks that were found. Remove any restrictions that were found. Replace any damaged components that were found.Engine Speed/Timing
Check the calibration of the engine speed/timing sensor. Refer to calibration procedures Troubleshooting, "Engine Speed/Timing Sensor - Calibrate".
Verify that the crankshaft and the camshaft drive gears are set with the proper orientation. Refer to the Disassembly and Assembly manual.Atmospheric Pressure Sensor
Check the atmospheric pressure sensor for dirt and/or for debris. Remove any dirt and/or debris that is present. The correct reading for the atmospheric pressure is between 50 kPa (7.25 psi) and 100 kPa (14.5 psi).Intake Manifold (Boost) Pressure Sensor, "Fuel Position", and/or "FRC Fuel Limit"
Monitor the status of "Fuel Position" and "Rated Fuel Limit" while the engine is operating under full load. If "Fuel Position" equals "Rated Fuel Limit" and "Fuel Position" is less than "FRC Fuel Limit", the electronics are operating correctly. Otherwise, proceed to the next Step.
Verify that there are no active diagnostic codes for the intake manifold (boost) pressure sensor.
Monitor the status of "Intake Manifold (Boost) Pressure" and "Atmospheric Pressure" for normal operation on the Caterpillar Electronic Technician (ET). When the engine is not running, "Intake Manifold (Boost) Pressure" should be 0 kPa (0 psi).Note: A problem with the FRC will only cause black smoke during acceleration. A problem with the FRC will not cause black smoke during steady state operation.Flash File
Verify that the correct flash file is installed. Refer to programming parameters Troubleshooting, "Flash Programming".Fuel Quality
Cold weather adversely affects the characteristics of the fuel. For information on improving the characteristics of the fuel during cold weather operation, refer to the Operation and Maintenance Manual.Valve Adjustment
Check the valve adjustment. Refer to Systems Operation/Testing and Adjusting.
Air inlet and exhaust system
Engine speed/timing sensor
Atmospheric pressure sensor
Intake manifold (boost) pressure sensor
"Fuel Position" and/or "FRC Fuel Limit"
Flash file
Fuel quality
Valve adjustmentRecommended Actions
Air Inlet and Exhaust System
Check the air inlet system for restrictions and/or for leaks.
Check for an air filter restriction.
Check for derates and for alarms.
Perform a visual inspection of the system for restrictions and/or for leaks.
Ensure that the turbocharger has not failed.
Check the exhaust system for restrictions.
Repair any leaks that were found. Remove any restrictions that were found. Replace any damaged components that were found.Engine Speed/Timing
Check the calibration of the engine speed/timing sensor. Refer to calibration procedures Troubleshooting, "Engine Speed/Timing Sensor - Calibrate".
Verify that the crankshaft and the camshaft drive gears are set with the proper orientation. Refer to the Disassembly and Assembly manual.Atmospheric Pressure Sensor
Check the atmospheric pressure sensor for dirt and/or for debris. Remove any dirt and/or debris that is present. The correct reading for the atmospheric pressure is between 50 kPa (7.25 psi) and 100 kPa (14.5 psi).Intake Manifold (Boost) Pressure Sensor, "Fuel Position", and/or "FRC Fuel Limit"
Monitor the status of "Fuel Position" and "Rated Fuel Limit" while the engine is operating under full load. If "Fuel Position" equals "Rated Fuel Limit" and "Fuel Position" is less than "FRC Fuel Limit", the electronics are operating correctly. Otherwise, proceed to the next Step.
Verify that there are no active diagnostic codes for the intake manifold (boost) pressure sensor.
Monitor the status of "Intake Manifold (Boost) Pressure" and "Atmospheric Pressure" for normal operation on the Caterpillar Electronic Technician (ET). When the engine is not running, "Intake Manifold (Boost) Pressure" should be 0 kPa (0 psi).Note: A problem with the FRC will only cause black smoke during acceleration. A problem with the FRC will not cause black smoke during steady state operation.Flash File
Verify that the correct flash file is installed. Refer to programming parameters Troubleshooting, "Flash Programming".Fuel Quality
Cold weather adversely affects the characteristics of the fuel. For information on improving the characteristics of the fuel during cold weather operation, refer to the Operation and Maintenance Manual.Valve Adjustment
Check the valve adjustment. Refer to Systems Operation/Testing and Adjusting.
Caterpillar parts catalog:
Parts switch Caterpillar catalog:
844, 854G, 990 II, 992G, 994D
1440905
SWITCH AS-ROCKER
844, 854G, 990 II, 992G, 994D
844, 854G, 990 II, 992G, 994D
1236384
SWITCH AS-ROTARY
854G, 990, 990 II, 992G
854G, 990, 990 II, 992G
1440903
SWITCH AS-ROCKER
844, 854G, 990 II, 992G
844, 854G, 990 II, 992G
3E8770
SWITCH AS
120H, 12H, 140H, 143H, 160H, 163H, 16H, 24H, 320B, 320C FM, 5130, 5130B, 515, 5230, 5230B, 525, 533, 543, 785C, 789C, 793C, 836G, 844, 854G, 988F, 990, 990 II, 992D, 992G, HA770, HA771, HA870, HA871, ...
120H, 12H, 140H, 143H, 160H, 163H, 16H, 24H, 320B, 320C FM, 5130, 5130B, 515, 5230, 5230B, 525, 533, 543, 785C, 789C, 793C, 836G, 844, 854G, 988F, 990, 990 II, 992D, 992G, HA770, HA771, HA870, HA871, ...
1440909
SWITCH AS-ROCKER
844, 854G, 990 II, 992G
844, 854G, 990 II, 992G
824G II, 824H, 824K, 825H, 825K, 826G II, 826H, 826K, 834G, 834H, 834K, 836G, 836H, 836K, 844, 844H, 844K, 854G, 854K, 988F II, 988G, 988H, 988K, 990 II, 990H, 990K, 992G, 992K, 993K, 994, 994D, 994F,...
2199531
SWITCH AS-ROCKER
950G II, 950H, 962G II, 966G, 966G II, 972G II, 980G II, 980H, 990 II, 990H, 992G
950G II, 950H, 962G II, 966G, 966G II, 972G II, 980G II, 980H, 990 II, 990H, 992G
1274988
SWITCH AS-LIMIT
814F, 814F II, 815F, 815F II, 816F, 816F II, 824G II, 826G II, 844, 844H, 854G, 854K, 990 II, 990H, 992G, 992K, 994F
814F, 814F II, 815F, 815F II, 816F, 816F II, 824G II, 826G II, 844, 844H, 854G, 854K, 990 II, 990H, 992G, 992K, 994F
1036333
SWITCH AS-ROCKER
950G, 950G II, 962G II, 966G II, 972G II, 980G II, 990
950G, 950G II, 962G II, 966G II, 972G II, 980G II, 990
950G, 962G, 980G, 980G II, 980H
950G, 950G II, 962G, 962G II, 966G II, 972G II, 980G, 980G II, 980H