RING-RETAINING 1401739 - Caterpillar

Do not allow the Ether Injection System to be on for more than two minutes. Damage to the Ether Solenoid may occur.
Activate the ether override and observe the voltmeter while ether injection is activated. Disable the ether override.Expected Result:The voltage at terminal 87 should measure 24 3 VDC during injection.Results:
OK - The voltage at terminal 30 measured 24 3 VDC during injection. Proceed to test step 10.
Not OK - The voltage at terminal 87 does not measure 24 3 VDC during injection. Proceed to test step 12.Test Step 10. Check the Voltage at the Resistor and the Diode Assembly.
Turn the keyswitch to the OFF position.
Disconnect the 2 Pin connector at the resistor and the diode assembly.
Connect a voltmeter to pin 1 of the resistor and the diode assembly and ground.
Turn the keyswitch to the ON position.
Do not allow the Ether Injection System to be on for more than two minutes. Damage to the Ether Solenoid may occur.
Activate the ether override and observe the voltmeter while ether injection is activated. Disable the ether override.Expected Result:The voltage should measure 24 3 VDC.Results:
OK - The voltage measured 24 3 VDC. Proceed to test step 11.
Not OK - The voltage did not measure 24 3 VDC.Repair: There is a problem in the harness between the ether hold relay and the resistor and diode assembly. Repair the connectors or wiring and/or replace the connectors or wiring. Verify that the system is operating correctly. Reinstall the ether canister on the ether solenoid. Stop.Test Step 11. Check the Resistor and the Diode Assembly.
Disconnect the 2 Pin connector at the resistor and the diode assembly.
Set the multimeter to the "Check Diode" setting.
Connect the positive lead of the multimeter to pin 2 and the negative lead to pin 1 of the resistor and the diode assembly and observe the multimeter.
Connect the positive lead of the multimeter to pin 1 and the negative lead to pin 2 of the resistor and the diode assembly and observe the multimeter.Expected Result:When the positive lead of the multimeter is connected to pin 2 and the negative lead to pin 1, the multimeter should display an overload "(OL)".When the positive lead of the multimeter is connected to pin 1 and the negative lead to pin 2, the multimeter should display a number less than one.Results:
OK - The resistor and the diode assembly is operating correctly.Repair: There is a problem in the harness between the resistor and diode assembly and the ether solenoids. Repair the connectors or wiring and/or replace the connectors or wiring. Verify that the system is operating correctly. Reinstall the ether canister on the ether solenoid. Stop.
Not OK - The resistor and the diode assembly is not operating correctly.Repair: The resistor and the diode assembly is causing the problem. Replace the resistor and the diode assembly. Verify that the system is operating correctly. Reinstall the ether canister on the ether solenoid. Stop.Test Step 12. Check the Battery Voltage to the Ether Hold Relay.
Measure the