0R9938 ALTERNATOR GP- B Caterpillar parts
Rating:
Alternative (cross code) number:
CA0R9938
0R-9938
0R9938
CA0R9938
0R-9938
0R9938
Weight: 25 pounds 11 kg.
Related part:
2008281
ALTERNATOR GP- B
0R9938
R
Cross Reference:
CATERPILLAR
0R9938,
1655140,
1677812,
2008277,
2008281,
2070647,
OR9937,
CUMMINS
3675244RX,
DELCO REMY
10459199,
10459353,
10459357,
19011168,
19011189,
19011191,
19011195,
19011205,
19011208,
19011209,
8600479,
FARCOM
112736,
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Automotive Engine Spare Parts ATG20275 ALTERNATOR Compatible With CATERPILLAR 826G 0R9938, 167-7812, 207-0647, 266-7226, 266-7224
KBERULAND Automotive Engine Spare Parts ATG20275 ALTERNATOR Compatible With CATERPILLAR 826G 0R9938 , 167-7812 , 207-0647 , 266-7226 , 266-7224
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ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible For CATERPILLAR C7 3406E
PanLii HIGH OUTPUT CAPACITY: Provides a powerful output that ensures reliable power for vehicle electrical systems || Durable Construction: Utilizing high-quality materials, this alternator is designed to withstand the rigors of daily use || Easy Installation: The installation process is simple and can be done quickly without specialized skills || Durability: The alternator operates reliably for efficient energy conversion || ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible For CATERPILLAR C7 3406E
PanLii HIGH OUTPUT CAPACITY: Provides a powerful output that ensures reliable power for vehicle electrical systems || Durable Construction: Utilizing high-quality materials, this alternator is designed to withstand the rigors of daily use || Easy Installation: The installation process is simple and can be done quickly without specialized skills || Durability: The alternator operates reliably for efficient energy conversion || ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible For CATERPILLAR C7 3406E
ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible With CATERPILLAR C7 3406E
Ayerann Installation: Direct installation design is adopted, which is simple and convenient, saving time and labor || Material: quality materials, durable and alternator with excellent performance || Durability: Follow OE standards, adopt quality components and quality control standards to ensure the durability of the generator || Performance: High-Output Alternator, ensures power stability under extreme conditions and improves the efficiency of vehicle electrical system || ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible With CATERPILLAR C7 3406E
Ayerann Installation: Direct installation design is adopted, which is simple and convenient, saving time and labor || Material: quality materials, durable and alternator with excellent performance || Durability: Follow OE standards, adopt quality components and quality control standards to ensure the durability of the generator || Performance: High-Output Alternator, ensures power stability under extreme conditions and improves the efficiency of vehicle electrical system || ATG20275 24V 105A Alternator 0R9938 167-7812 207-0647 266-7226 266-7224 8600050 Compatible With CATERPILLAR C7 3406E
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Information:
Use this procedure to troubleshoot the fuel system if a problem is suspected with the fuel actuator. Or, use this procedure if one of the following diagnostic codes is active or easily repeated.
Table 1
Diagnostic Codes Table
J1939 Code and Description Conditions which Generate this Code System Response
1442-9
Engine Fuel Valve #1 Position : Abnormal Update Rate There is a communication issue between the fuel valve and the ECM. The code is logged.
The amber warning lamp is activated.
5418-7
Engine Fuel Actuator #1 : Not Responding Properly There is a mismatch between the fuel position requested by the command signal and the actual position of the fuel valve. The problem is reported by the fuel actuator.
5418-12
Engine Fuel Actuator #1 : Failure The fuel actuator has reported an internal failure.
Table 2
Required Tools
Part Number Part Name Quantity
105-3805 Receptacle As 1
105-3806 Contact 1
239-5260 Crimp Tool 1
329-5658 Crimp Die Set 1 The fuel actuator is an electronic actuator. The actuator works with the Electronic Control Module (ECM) to ensure the correct fuel position during all engine operating conditions.The ECM modulates the fuel valve from a fully closed position to a fully opened position.CommunicationsThe ECM and the fuel actuator communicate via the CAN data link. The ECM sends a command signal to the actuator. The actuator sends the following information to the ECM: desired actuator position, actual actuator position and internal fault diagnosis.If the ECM cannot communicate with the actuator, the ECM activates a 1442-9 diagnostic code. The problem may be with the power supply to the actuator. This code may be generated for an intermittent problem. After checking the power circuit for the actuator, refer to Troubleshooting, "CAN Data Link - Test" for information that is related to troubleshooting the data link circuitry.Self-diagnostic Function If an internal fault is detected by the actuator, the condition is communicated via the CAN data link. The ECM activates a 5418-12 diagnostic code. The most likely cause of a 5418-12 diagnostic code is an electrical problem or a mechanical problem.
Illustration 1 g03393125
Schematic for the circuit of the fuel actuator
Illustration 2 g03393123
Location of the fuel actuator (left-hand side engine view)
Illustration 3 g03393175
P1 ECM connector
(P1/31) Fuel control valve
(P1/52) +Battery
(P1/57) +Battery
(P1/61) -Battery
(P1/63) -Battery
(P1/70) Keyswitch
Illustration 4 g03393176
P1 ISM connector
(P1/66) -Battery
(P1/67) -Battery
(P1/68) +Battery
(P1/70) Keyswitch
Table 3
Troubleshooting Test Steps Values Results
1. Check for Diagnostic Codes that are Active or Logged
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector.
B. Restore electrical power to the ECM.
C. Monitor the diagnostic codes on Cat ET. Check and record any diagnostic codes.
Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
D. Turn the main disconnect switch to the OFF position.
Codes
Result: No diagnostic codes are active for the fuel actuator.
Repair: There may be an intermittent problem in the harness or in a connector. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".
Result: A 5418-7 code is active or logged.
Proceed to Test Step 3.
Result:
Table 1
Diagnostic Codes Table
J1939 Code and Description Conditions which Generate this Code System Response
1442-9
Engine Fuel Valve #1 Position : Abnormal Update Rate There is a communication issue between the fuel valve and the ECM. The code is logged.
The amber warning lamp is activated.
5418-7
Engine Fuel Actuator #1 : Not Responding Properly There is a mismatch between the fuel position requested by the command signal and the actual position of the fuel valve. The problem is reported by the fuel actuator.
5418-12
Engine Fuel Actuator #1 : Failure The fuel actuator has reported an internal failure.
Table 2
Required Tools
Part Number Part Name Quantity
105-3805 Receptacle As 1
105-3806 Contact 1
239-5260 Crimp Tool 1
329-5658 Crimp Die Set 1 The fuel actuator is an electronic actuator. The actuator works with the Electronic Control Module (ECM) to ensure the correct fuel position during all engine operating conditions.The ECM modulates the fuel valve from a fully closed position to a fully opened position.CommunicationsThe ECM and the fuel actuator communicate via the CAN data link. The ECM sends a command signal to the actuator. The actuator sends the following information to the ECM: desired actuator position, actual actuator position and internal fault diagnosis.If the ECM cannot communicate with the actuator, the ECM activates a 1442-9 diagnostic code. The problem may be with the power supply to the actuator. This code may be generated for an intermittent problem. After checking the power circuit for the actuator, refer to Troubleshooting, "CAN Data Link - Test" for information that is related to troubleshooting the data link circuitry.Self-diagnostic Function If an internal fault is detected by the actuator, the condition is communicated via the CAN data link. The ECM activates a 5418-12 diagnostic code. The most likely cause of a 5418-12 diagnostic code is an electrical problem or a mechanical problem.
Illustration 1 g03393125
Schematic for the circuit of the fuel actuator
Illustration 2 g03393123
Location of the fuel actuator (left-hand side engine view)
Illustration 3 g03393175
P1 ECM connector
(P1/31) Fuel control valve
(P1/52) +Battery
(P1/57) +Battery
(P1/61) -Battery
(P1/63) -Battery
(P1/70) Keyswitch
Illustration 4 g03393176
P1 ISM connector
(P1/66) -Battery
(P1/67) -Battery
(P1/68) +Battery
(P1/70) Keyswitch
Table 3
Troubleshooting Test Steps Values Results
1. Check for Diagnostic Codes that are Active or Logged
A. Connect Caterpillar Electronic Technician (ET) to the service tool connector.
B. Restore electrical power to the ECM.
C. Monitor the diagnostic codes on Cat ET. Check and record any diagnostic codes.
Note: Wait at least 30 seconds in order for the diagnostic codes to become active.
D. Turn the main disconnect switch to the OFF position.
Codes
Result: No diagnostic codes are active for the fuel actuator.
Repair: There may be an intermittent problem in the harness or in a connector. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".
Result: A 5418-7 code is active or logged.
Proceed to Test Step 3.
Result:
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