HEAD-PUMP 1170823 - Caterpillar

1170823 HEAD-PUMP Caterpillar parts 966H, 966K, 972H, 972K

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Alternative (cross code) number:
CA1170823
117-0823
1170823

Weight: 24 pounds 11 kg.

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WHEEL LOADER,

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$189.82

12 Jan 2019
500 Hundredths Pounds
Toro: Toro

Toro Tire-standard Part # 117-0823
Toro Tire-standard Part # 117-0823

Number on catalog scheme: 12

Caterpillar 1170823 Parts scheme HEAD-PUMP

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Compatible equipment models: 1170823:

WHEEL LOADER 966H 966K 972H 972K Caterpillar

Information:

Illustration 1 g02087715
Schematic for the 8 V supplyThis diagnostic code is recorded when the ECM reads the voltage of the 8 volt DC supply circuit (wire X800-OR) and the voltage is below normal.System Response:Components that receive power from the 8 volt DC supply will not be available.Test Step 1. CHECK THE VOLTAGE AT THE ECM.
Turn the disconnect switch and the key start switch to the ON position.
Check the voltage at the connector of the ECM from contact J1-44 (8 volt DC supply) to contact J1-45 (ground). Use the 7X-1710 Cable probes to measure the voltage. Do NOT disconnect the machine harness from the ECM. Expected Result:The voltage is 8.0 0.5 DCV.Results:
OK - The voltage is 8.0 0.5 DCV. The 8 volt DC supply voltage is correct. Verify that the diagnostic code is present. If the diagnostic code is still present the ECM has failed. Proceed to test step 2.
NOT OK - Voltage is NOT 8.0 0.5 DCV. The voltage is less than 8.0 0.5 DCV. The ECM has failed.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. Also, recheck if the diagnostic code is active. If the cause of the diagnostic code is not found, replace the ECM. See Troubleshooting, "Electronic Control Module (ECM) - Replace".STOPTest Step 2. CHECK FOR A SHORT TO GROUND.
Disconnect any sensor that uses the 8 volt DC supply voltage from the machine harness.
At the harness connector for the ECM, measure the resistance between frame ground and contact J1-44 of the 8 volt DC supply circuit. Expected Result:The resistance is greater than 5000 ohms.Results:
OK - The resistance is greater than 5000 ohms. The harness circuit resistance is correct. The ECM has failed.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. Also, recheck if the diagnostic code is active. If the cause of the diagnostic code is not found, replace the ECM. See Troubleshooting, "Electronic Control Module (ECM) - Replace".STOP
NOT OK - The resistance is less than 5000 ohms. If the resistance is less than 5000 ohms with all of the sensors disconnected from the machine harness the machine harness is shorted to ground. Proceed to Test Step 3.Test Step 3. DISCONNECT THE HANDLE.
Turn the key start switch and the disconnect switch to the ON position.
After disconnecting the handle, check the Caterpillar Electronic Technician (ET) for any active diagnostic codes.Expected Result:The diagnostic code changes from a FMI 04 to a FMI 03.Results:
OK - The diagnostic code changes to an FMI 03. There is an internal failure in the handle. The handle has failed.Repair: Replace the handle.STOP
NOT OK - The diagnostic code does not change to an FMI 03. The ECM has failed.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. Also, recheck if the diagnostic code is active. If the cause of the diagnostic code is not found, replace the ECM. See Troubleshooting, "Electronic Control Module (ECM) - Replace".STOP