SEAL-RING 2094291 - Caterpillar

Illustration 1 g00919872
Test Step 1. Check for Connector Damage.
Turn the battery disconnect switch to the OFF position.
Turn the keyswitch to the OFF position.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect all of the other connectors. Refer to the diagnostic functional test Troubleshooting, "Inspecting Electrical Connectors" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the ECM connector (allen head screw) for the proper torque of 6.0 N m (55 lb in).
Check the customer connector (allen head screw) for the proper torque of 2.25 0.25 N m (20 2 lb in).
Check the harness and the wiring for abrasion and for pinch points.Expected Result:The connectors and wiring should be free of the following problems: damage, corrosion, abrasion and incorrect attachment.Results:
OK - The connectors and wiring are okay. Proceed to test step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Stop.Test Step 2. Check the ECM Supply Voltage.
Turn the battery disconnect switch to the ON position.
Turn the keyswitch to the ON position. The engine should be off.
Measure the voltage at the ECM connector between P1-4 and P1-11.Expected Result:The voltage should be 24 3 VDC.Results:
OK - The voltage is 24 3 VDC. The voltage is correct. Proceed to test step 3.
Not OK - The voltage is not 24 3 VDC. The voltage is incorrect.Repair: Perform the diagnostic functional test Troubleshooting, "Electrical Power Supply". Stop.Test Step 3. Check for Voltage at the Prelubrication Motor.
Turn the keyswitch to the OFF position.
Connect the Caterpillar Electronic Technician (ET) to the cab service tool connector J42. Start the Cat ET.
Connect a voltmeter between the positive terminal of the prelubrication motor and ground.
Turn the keyswitch to the ON position. The engine should be off.
Access the override for the prelubrication system.
Enable the override for the prelubrication system.
Measure the voltage between the positive terminal of the prelubrication motor and ground.Expected Result:The voltage should be 24 3 VDC.Results:
OK - The voltage is 24 3 VDC. Proceed to test step 4.
Not OK - The voltage is not 24 3 VDC. Proceed to test step 5.Test Step 4. Check the Operation of the Prelubrication Motor.
Turn the keyswitch to the OFF position.
Connect one side of a suitable piece of 10 AWG wire to the + Battery terminal.
For one second, connect the other end of the wire to the positive terminal of the prelubrication motor.Expected Result:The prelubrication motor should start while the wire is connected to the positive terminal of the prelubrication motor.Results:
OK - The prelubrication motor starts. There is a problem in the wiring harness at the prelubrication motor.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Stop.
Not OK - The prelubrication motor did not start.Repair: The problem appears to be in the prelubrication motor. Install a new prelubrication motor. If the condition is no longer present, reinstall the old prelubrication motor. If the original condition