5P7989 RING-RETAINING Caterpillar parts
993K, D10, D11N, D11R, D11T
Rating:
Alternative (cross code) number:
CA5P7989
5P-7989
5P7989
CA5P7989
5P-7989
5P7989
Weight: 2 pounds 1 kg.
Information:
OD
804
mm
THICKNESS
5.33
mm
TYPE
RECT SECT
TRACK-TYPE TRACTOR, WHEEL LOADER,
Compatible equipment models: 5P7989:
Information:
Illustration 1 g00596481
Schematic For Speed Sensor (Engine)Note: This speed sensor is sometimes referred to as a magnetic pickup (MPU).The EMCP II monitors engine speed in order to use the information when the information is needed for other tasks. The following list contains tasks that use the information from the speed sensor:
Activating an engine overspeed shutdown
Terminating engine cranking
Determining the oil step speed
Engaging the air shut off solenoidsThe EMCP II does not control engine speed. The engine speed sensor is mounted on the flywheel housing of the engine. The sensor creates a sine wave signal from passing ring gear teeth at the rate of one pulse per tooth. The sensor sends the GSC a sine wave signal in which the frequency is in direct proportion to the speed of the engine. The GSC treats a CID 190 as a shutdown fault. The engine is not allowed to crank when this diagnostic code is active.Note: Engines that are equipped with a electronic governor have a separate speed sensor with the cable marked "973-458", "458-873", "973-407", or "873-507". The cable of the speed sensor that is used by the GSC is marked "838-873" or "838-973".Note: Faults are created when the harness connector (40 contact) is disconnected from the GSC during these troubleshooting procedures. Clear these created faults after the particular fault is corrected. In a properly operating system, when the harness connector is removed from the GSC, the following diagnostic codes are recorded:
CID 100 FMI 3 pressure sensor (engine oil)
CID 110 FMI 3 temperature sensor (engine coolant)
CID 111 FMI 3 fluid level sensor (engine coolant)
CID 190 FMI 3 speed sensor (engine)
CID 331 FMI 2 switch (engine control)
CID 336 FMI 2 switch (engine control)ProcedureThe following conditions could be the cause of a CID 190 FMI 3:
There is an open circuit of the signal.Clear the diagnostic code from the fault log after troubleshooting is complete.
Check the harness and the sensor.
Turn the ECS to OFF/RESET.
Disconnect the harness connector from the GSC.
At the GSC harness connector, measure the resistance from contact 1 to contact 2. Expected Result: The resistance should be 100 to 350 ohm. Results:
OK - The fault is most likely intermittent. Reconnect the harness connector to the GSC. Turn the ECS to OFF/RESET and then turn the ECS to STOP. Verify that a CID 190 remains active on the upper display.
If a CID 190 is showing, continue with this procedure. Proceed to next step.
If a CID 190 is NOT showing, this step has corrected the fault. STOP. If you are desired then continue with this procedure. Proceed to next step.
NOT OK - The harness wiring or the speed sensor is faulty. Proceed to 2.
Check the resistance of the sensor.
Disconnect the speed sensor from the engine harness. The speed sensor remains fastened to the engine.
At the connector of the speed sensor, measure the resistance between contact "1" and contact "2".Expected Result: The resistance should be 100 to 350 ohm. Results:
OK - The resistance of the speed sensor is correct. Proceed to next step.
NOT OK - Replace
Caterpillar parts catalog:
Parts ring Caterpillar catalog:
6G1781
RING-LOCK
784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 993K
784B, 784C, 785, 785B, 785C, 785D, 789, 789B, 993K
2625316
RING-BACKUP
950H, 962H
950H, 962H
3704133
RING
980H
980H
3704131
RING
980H
980H
1915604
RING
322C, 324D, 324D LN, 324E LN, 325C, 325D, 325D L, 328D LCR, 329D LN, 330C, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E L, 336E LH, 336E L...
322C, 324D, 324D LN, 324E LN, 325C, 325D, 325D L, 328D LCR, 329D LN, 330C, 330C FM, 330C L, 330D, 330D FM, 330D L, 330D LN, 336D, 336D L, 336D LN, 336D2, 336D2 L, 336E, 336E H, 336E L, 336E LH, 336E L...
2593176
RING-BACKUP
950K, 962K
950K, 962K
1884218
RING
320C, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 326D L, 328D LCR, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN, 330C, 330C FM, 330C L, 3...
320C, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 326D L, 328D LCR, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN, 330C, 330C FM, 330C L, 3...
1884217
RING
320C, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 326D L, 328D LCR, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN, 330C, 330C FM, 330C L, 3...
320C, 322C, 323D L, 324D, 324D L, 324D LN, 324E, 324E L, 324E LN, 325C, 325C FM, 325C L, 325D, 325D FM, 325D L, 326D L, 328D LCR, 329D, 329D L, 329D LN, 329E, 329E L, 329E LN, 330C, 330C FM, 330C L, 3...
2572152
RING
793D, 993K
793D, 993K
3165388
RING-BACKUP
770, 772, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, 993K, AD55, AD55B, AD60
770, 772, 773B, 773D, 773E, 773F, 773G, 773G LRC, 773G OEM, 775B, 775D, 775E, 775F, 775G, 775G LRC, 775G OEM, 993K, AD55, AD55B, AD60