COVER 8H7812 - Caterpillar

If the crankshaft is not in the correct position when the transducer is installed, the transducer will be damaged when the engine is started.
Apply clean engine oil to a 2D-6392 O-Ring Seal . Install the O-ring seal on the end of the 6V-2197 Transducer .
Push the transducer through the transducer adapter until the transducer contacts the crankshaft counterweight.
Withdraw the transducer 1.0 mm (0.04 inch) and hand tighten the nut on the adapter sleeve in order to secure the transducer. Move the O-ring seal against the adapter.Results:Continue to the next test step.Test Step 3. Connect the 7X-1695 Cable As
If the engine harness is equipped with a connector for timing calibration, connect the 7X-1695 Cable As to the connector for timing calibration and to the transducer.
Illustration 1 g01963414
Connecting the 7X-1695 Cable As to an ADEM III ECM
Illustration 2 g01345359
Connecting the 7X-1695 Cable As to an ADEM IV ECM
If the engine harness is not equipped with a connector for timing calibration, perform the following procedure:Note: Refer to Illustration 1 or Illustration 2. The 170-3519 Harness can be connected to the P1 connector or to the P2 connector. Select the connector with the easiest access.
Table 5
Locations for Connection of the 170-3519 Harness    
Wire Color     Locations on the 70−pin P2 Connector     Locations on the 120−pin P2 Connector     Locations on the P1 Connector    
White     22     26     24    
Yellow     23     36     25    
Refer to Table 5. Remove the sealing plugs from the appropriate terminals. Do not discard the sealing plugs. The sealing plugs may be reinstalled when the timing calibration is complete.
Disregard the pin-outs on the label of the harness. Install the white wire of the 170-3519 Harness into the appropriate location.
Install the yellow wire of the 170-3519 Harness into the appropriate location.Note: Ensure that each wire is installed into the correct location. The timing calibration will not be successful if the wires are installed incorrectly.
Connect the 7X-1695 Cable As to the connector for timing calibration and to the transducer.Results:Continue to the next test step.Test Step 4. Start the Engine and Check for Diagnostic Codes
Connect Caterpillar Electronic Technician (ET) to the service tool connector. Refer to Troubleshooting, "Electronic Service Tools".
Start the engine and run the engine until the engine is at the normal operating temperature.
Check for active diagnostic codes. Wait at least 30 seconds in order for the codes to become active.The engine must not have any active diagnostic codes during the timing calibration except for a 261-13 Engine Timing Calibration required.Expected Result:There are no active diagnostic codes or there is only a code for timing calibration that is active at this time.Results:
OK - There are no active diagnostic codes or there is only a code that is active for timing calibration at this time. Proceed to Test Step 5.
Not OK - There is at least one active code that is not a code for timing calibration.Repair: Troubleshoot and repair any active diagnostic codes before you continue with this procedure.STOPTest