Prepare Circuit Breaker and Loosen Captive Screws

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My Dad who is a Master Electrician shows how to Install a Commercial 3-Phase Breaker, Thoughts?

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What happens here

After successfully testing the circuit breaker, ensure that its toggle is in the 'OFF' position. Locate the captive screws on the side of the breaker. These screws are designed to stay attached to the breaker even when loosened. Using a screwdriver, loosen the captive screws just enough so they are not sticking out excessively, but also not fully recessed. The goal is to prepare them for easy engagement with the busbar without being overly tightened or loose.

Goal: Adjust captive screws for proper engagement with the busbar.

Tools and materials

Screwdriver Unspecified — To loosen the captive screws

What they say

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load side I can hit it and trip it with an impact. See how it tripped? That lets me know that this breaker is working properly. Now that I did that, I'm going to make sure it's off. So, what I'm going to do is I'm going to locate this side bar. Now, they're captive screws, so they're going to stay in there. And I want to make sure they're not too sticking out and I'm going to push in on the side bar till it snaps in. Now, this is what a lot of rookies do. They use a drill. You

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