Circuit Opening Relay

INSPECTION




1. REMOVE CIRCUIT OPENING RELAY (Marking: CIR OPN)




2. INSPECT CIRCUIT OPENING RELAY CONTINUITY
a. Using an Ohmmeter, check that there is continuity between terminals 1 and 2.

If there is no continuity, replace the relay.

b. Check that there is no continuity between terminals 3 and 5.

If there is continuity, replace the relay.




3. INSPECT CIRCUIT OPENING RELAY OPERATION
a. Apply battery voltage across terminals 1 and 2.
b. Using an Ohmmeter, check that there is continuity between terminals 3 and 5.

If there is no continuity, replace the relay.

4. REINSTALL CIRCUIT OPENING RELAY