4.2.19 Unlocked Connector Disengagement Force.4.2.19.1 Purpose. Determine the effort required to disconnect the mated connector pairs when the lockmechanism is properly disengaged and to determine the effort required to fully disengage the locking features.4.2.19.2 Equipment. Insertion/Extraction tester with peak reading feature.4.2.19.3 Sample Preparation.4.2.19.3.1 Test Sample Size. Ten (10) mating connector pairs with all terminals, wires, TPAs, and seals. Onfive (5) of the test samples, physically remove or otherwise disable the connector locks.4.2.19.4 Procedure.1. Make a fixture that will secure the connectors to be tested without distorting any of the parts eitherbefore or during the test.2. Mount five (5) of the mated connector housings in the fixture with the locking feature disengaged.Ensure that all secondary locks and/or CPAs are either removed or disengaged.3. Pull the mated connectors apart at a rate of (50 ± 10) mm/minute.4. Record the force at which the connectors disengage.5. Mount five (5) of the mated connector housings in the fixture with the locking feature engaged.6. Measure the force required to disengage the primary locking feature.7. Record the force required to disengage the lock.4.2.19.5 Acceptance Criteria.4.2.19.5.1 The maximum force required to disconnect the connector pairs with the locks properly disengagedshall be less than 100 N.4.2.19.5.2 The maximum force required to disengage the primary lock shall be less than 70 N.Note: In the case of connector housings without locking features the minimum disengagement force shallbe 20 N.