we're setting up to recover refrigerants because we have to service the AC compressor by step how you connect the AC machine to it and for cover refrigerant first thing we need to do is find the service boards there's two service port on every more 1:34 for high pressure service port and oppression we look around here we can see the high-pressure service it's got a red cap you're going to see the high pressure port and the low pressure different sizes so you can mix the lighter our low-pressure for free here other than my pressure identified our two points this Court's dirty attend the patient if we may have a refrigerant out of the Schrader valve and II will dirt clink to it I'm going to wipe the dirt off because I don't want dirt or grit in my AC fittings there'll be a potential leak enter i'm identified by two service points and clean that next step is connecting the machine I'm going to get the couplers out and I'll show you that all right we've got our our hoses that we're going to connect to our AC system I'm going to show you how to properly use these students so you don't damage them okay first of all color should be back down this should be screwed out all the way counterclockwise you don't need to pull these things hard gently turn them this is all the way in what that does is removes the spindle down to open the system up to the comfort when you're installing the coupler you want to make sure that your mattress is way out there's an o-ring in here that's going to seal against this that's one of the reasons and I wipe the dirt off so the dirt doesn't damage the over now this is quick-release just like an airline on any of our tools as you pull the couple are up it's going to release these little holes so the copper will fit over the fitting make sure you pushing your couple and square to the finish all the way one who feel the o-ring slide past once it couplers on it should not fall the couple are in open the system up to your EC machine how to connect the low pressure fitting the high pressure fitting is the same exact way so we're going to connect the high pressure fitting that'll show you how to use this machine alright we're looking at our cool tech 34 700c we're going to recover the refrigerant from this vehicle first thing I notice is my high pressure and low pressure gauges should be the same pressure the system is not on 95 psi that tells me there's something in the system how much I don't know right now inside of our machine ready to go is four and a half pounds I want to recover what's out of this vehicle first I'm going to find the key that says recover one thing I want to pay attention to is the height of the oil level on the side of the machine I'll show you that later but right now I'm just going to reference what the height is it's at exactly 7 ounces as the machine begins to recover refrigerant there's a scale inside it's measuring how much we've recovered you're also going to see these gauges fall down as that refrigerant has pulled out there's not going to be as much pressure in the system we're going to take it all the way down to zero dreams or you you