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Ultrasonic leak detector find leaking rubber hose using high-pressure dry nitrogen. 
Do not use shop compressed air to find leaks.
Even though it was wrong back in the 1960s and 1970s and 80s when we had refrigerant R 12 and we were using mineral oil.
Mineral oil refrigerant oil did not absorb water as much as today’s modern refrigerant oil’s that are made out of POE or PAG oil.
These new refrigerant oil’s binding blend with water and absorb water and hold onto it.
They do not like to release all the water just by putting it on the vacuum pump as you were told a vacuum pump oil remove moisture
But it will not remove all the moisture out of a system that is already used that is Coated with POE or PAG oil
Пікірлер: 7
DANG! What a tiny little leak! That little ultrasonic leak detector is freaking cool!
@coldfinger459sub0
2 жыл бұрын
Every method of leak detection has it strong points. One wins a metal for finding a leak where another one fails. And then on the next leak you may find the one that won the medal for being the best cannot find a leak on the next leak but the one that failed the first time is the winner This is why you do not use just one method for looking for leaks They are many methods
@thisisyourcaptainspeaking2259
2 жыл бұрын
I confirmed a suspected schrader leak a couple days ago using the ultrasonic detector. I don't have the d-tek sniffer yet, it's on my list but I've found every leak so far using either bubble detector or the vpe. Maybe just lucky but I know eventually I'll be needing the d-tek.
My current vacuum pump has a jumper wire where the switch used to be because it failed after years of use. Now I turn it on and off with the cord. LOL
@coldfinger459sub0
2 жыл бұрын
That’s exactly why I do not use the switches on tools that I can easily use the cord. If those contact points are left on from day one they will never wear out. It’s that mechanical making and breaking with the little Arkansas Park with amperage that pits and burns the points of the switch.
so you cant test the compressor with air or nitro even for 5 seconds like some videos do? how do you know how much oil do you have to add tho... or it doesnt even need to be added into an empty system, because the lack of refridge just left the oil standing somewhere?
@coldfinger459sub0
2 жыл бұрын
The oil in a pre-existing system that was an operation is scattered throughout the system. If there was no large leak like a rock immediately through a condenser for a liquid line ruptured or hose liquid line blew out and a rapid loss of refrigerant that would carry out a large amount of oil all at one time Or the other scenario a very slow micro amount of refrigerant slowly lost through all the rubber hoses through all the river seals over a period of years where there is no oil loss at all whatsoever. Because oil is not used up it’s not burnt up it’s not consumed it stays there forever unless there’s some physical opening that allows a loss or a component is replaced Under the circumstances the compressor would have to be removed and you perform the oil balance procedure as per the manufactures instructions. And this will tell you if you have too much oil or too little oil