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GUIDE 2H9509 - Caterpillar



2H9509 GUIDE Caterpillar parts 630A GUIDE
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Alternative (cross code) number:
CA2H9509
2H-9509
2H9509
Caterpillar 2H9509 GUIDE
Weight: 1 pounds 0 kg.

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WHEEL SCRAPER,

Compatible equipment models: 2H9509:

WHEEL SCRAPER  630A   Caterpillar
Number on catalog scheme: None
 
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Illustration 1 g00764091
Schematic of the Transmission Clutch (Solenoid 3)Note: The approximate coil resistance of the solenoid is 8.7 .4 ohms at 25 °C (77.0 °F).This diagnostic code is recorded when the ECM reads the current of the solenoid as above normal (short to ground).Note: This procedure can cause new diagnostic codes to be recorded. Ignore these created diagnostic codes. Complete the following procedure. Then clear the created diagnostic codes.Test Step 1. CHECK THE SOLENOID.
Turn the disconnect switch and the key start switch to the ON position. DO NOT start the engine. Ensure that the diagnostic code for the solenoid is active.
Disconnect the machine harness from the solenoid.
Observe the status of the diagnostic code. The diagnostic code is active or the diagnostic code is NOT active.Expected Result:When the solenoid is disconnected, the diagnostic code changes. The diagnostic code is NOT active.Results:
YES - The circuit is correct. The solenoid has failed.Repair: Repeat this test step "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid. Stop.
NO - The diagnostic code remains active. Proceed to test step 2.Test Step 2. CHECK THE SIGNAL CIRCUIT OF THE SOLENOID FOR A SHORT.
Turn the disconnect switch and the key start switch to the OFF position.
Disconnect the machine harness from the solenoid.
Disconnect the J1 and J2 machine harness connectors from the ECM.
At the J1 and J2 machine harness connectors for the ECM, measure the resistance from the signal contact of the solenoid J2-62 (wire 754-BU) to ground. The possible sources of ground are contacts: 725 and 730 machines J1-12, J2-2, J2-12, J2-13, J2-22, J2-36, J2-41, J2-46, J2-49, J2-52, J2-56, J2-59, J2-69 and frame ground. 735 machines J1-12, J1-20, J2-2, J2-12, J2-13, J2-18, J2-22, J2-36, J2-46, J2-49, J2-52, J2-56, J2-59 and J2-69. Expected Result:The resistance that is measured is greater than 5000 ohms.Results:
YES - The resistance that is measured is greater than 5000 ohms. The machine harness is correct. Proceed to test step 3.
NO - The resistance that is measured is less than 5 ohms. There is a short in the machine harness.Repair: The short is between the signal contact of the solenoid and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness. Stop.Test Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.
Inspect the contacts and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the disconnect switch and the key start switch to the ON position.
Clear all of the inactive diagnostic codes.
Stop the machine. Then place the parking brake switch in the ON position.
Observe the status of the diagnostic code. The diagnostic code is present or the diagnostic code is NOT present.Expected Result:The diagnostic code for the relay is NO longer present.Results:
YES - The diagnostic code is NOT present.Repair: The diagnostic code does not exist at this time. The initial diagnostic code was probably caused by a poor electrical connection and/or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation. Stop.
NO - The diagnostic code has not

Caterpillar parts catalog:

Caterpillar parts catalog
630 SCRAPER 60F00001-00075 (MACHINE)


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