Pulling vacuum with sman 460 micron gage/identifying what is leaking / cause of not holding vacuum

So glad to see someone on YouTube telling people NOT to close your gauges after reaching vacuum. I have worked around so many people that pulled vacuum and closed gauges, and frankly didn't know any better. Great video, great teacher, great techniques.

We issued the 460/480 sets to start up techs initially but soon grew tired of figuring out is it our hoses manifolds or systems that kept us from performing the decay tests. So, we issued 1 appion valve core removal tool, 1 svg3 stand alone micron gage, and one 1/4x1/4 appion vacuum hose to each tech. No more tool problems and its blistering fast.

Logically presented and explained! An excellent "hands on" presentation. Great video indeed. Thank you!

Phenomanl explanation on checking system for leaks. I always say some people are meant to be teachers and some are just meant to be workers. You my friend are both. I have a saying that goes along with being able to teach the knowledge that one attains. "What good is a Lock without a Key", it's useless. So if a Teacher cannot teach but has knowledge on how something works, that makes them useless to students. You my friend, are a Lock With The Key, Very Useful... Keep Making Videos because you do a great job explaining how things work...

I'm one to admit when I make mistakes. After all, if you don't admit them, you're only lying to yourself. (Some of us) learn from our mistakes. I am currently a student in HVACR, and I am so glad that I am passionately scouring the Internet for as much knowledge and wisdom from veteran techs as I possibly can in order to go out in the field with some great information. This video is a prime example of that powerful information. We (my class and I) just finished our first semester, where we learned about the basic refrigeration cycle, along with recovery, pulling a vacuum, etc. (Next semester is Controls and Heating Systems). My instructor never once told us to leave our gauges open after reaching 500 microns. He specifically told us to close everything off! Even when we he taught everyone about electricity - specifically voltage - he never once mentioned the words 'potential difference'. He told them, "0 volts across a closed switch - that's just how the meter reads the electricity flowing through it." When it came to operating service valves, he never mentioned the terms 'backseating' and/or 'frontseating'. Instead, he said, "You have to unscrew them (or tighten them)." 🤦‍♂ Anyway, I instinctively know now (after watching this video) that leaving our gauges open is the proper thing to do. It's logical! Tail Gate Trainer, thank you so much for sharing your knowledge with us by putting together this video. You have my subscription to your channel. I think my instructor needs to get some more schooling, and some wisdom from you - the veteran tech. 😏

Damn that was spot on! I scratched my head big time yesterday, because of my vacuum kept failing. I applied your technic and I found the faulty hose. Thank you for sharing

You supposed to get millions of likes if all who understand the truth technician is ! Thank you,and god bless you!

this thing works great. I have used it in a couple of jobs and everything seems to work out fine I love it

very good instructions on how to trouble shoot your hose's . great info.

Hello Sir, you are an awesome educator. thank you.

Nice. Very informative and to the point.

I’m in schools now for Hvac thanks great video!

Excellent video! Your training material is very informative

I just oder my first! SM480V itll get here on Thursday I can't wait!!

Wow! That’s really helpful with me just purchased a latest model of fieldpiece digital gauge. Thank you so much,

What a great lesson.

That was awesome and helpful thank you very much

Just bought the SMAN 480v. Really excited for this. Hope it’s not too hard to learn at first

Your video was very helpful thank you for sharing. However I always leak test my Line Set and Evaporator coil with nitrogen for 30 min. before I do the evacuation of the system.

Sounds like your directing this to a fellow worker who is struggling.