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Hi there, surge break owners. Today we're gonna be taking a look at and showing you how to upgrade your existing surge break coupler to one with an electric lockout. This kit is specifically designed for Demco actuators and we've got a Demco easy connect actuator with drum brake unit in here, but this kit will also work with deep disc brake versions. We're just gonna take a look at it today and show you how to disassemble it to just do for your typical maintenance. If your master cylinder, something happens to wear out over time, gets filled up with the wrong type of fluid, a lot of moisture gets in there, anything like that and you gotta replace it, we're gonna show you how to be able to service it yourself here. So the first thing you would want to do is get the fluid out of the system.

So I actually took the bleeder screw at the back loose, but you could also take it loose right here at the back of the actuator. It was just easier to drain it into a container towards the rear, a little bit closer to the ground 'cause you really don't wanna get brake fluid on any painted surface. It is quite corrosive to paints and stuff. Your paint will come off of there, it'll discolor 'em, so just try to avoid that. We did place a napkin under here for when we take that loose for any of the fluid that's left in there.

When you do drain it, I do recommend that you pop the cap off here. That'll let it drain a little bit faster. Air can get in this way and let it drain out. So we've already let ours drain so we should be pretty dry at this point. So we're gonna head over to this side and we're gonna get our hoses disconnected here and our wiring disconnected.

Then we'll have to take out the bolts here that actually hold the entire coupler onto the trailer because the actuator inside's not just gonna slide out of there. We'll go ahead and begin our installation right here at the back of our actuator. When you're ready to add the lockout solenoid, you'll need to remove the connection right here at the back of the master cylinder or brake actuator. Now I've already gone ahead and drained the fluid from the system. I just opened one of the bleeder screws at the back.

If you open up the cap on top, the fluid will drain out a lot faster. You wanna fully pull it off there to make it drain faster. After it's done draining, I just usually thread it back on there 'cause if there is any little bit of fluid left from there, that does help to keep it from kind of dribbling out slower than it would if the cap was off. So we're gonna go ahead and remove this piece here. So we're gonna disconnect our line first. So we're gonna hold this piece while we disconnect the line. The piece to the back of our actuator, typically it's a half inch in size but it does vary slightly from manufacturer to manufacturer. But for our Demco here, it is gonna be a half inch. And the actuator we're installing is specifically designed to work with the Demco actuators 'cause we actually get some components that will protect the actuator in addition to the actuator itself. So we also are using a line wrench whenever working with our line 'cause the metal there is going to be softer than the head of a bolt or anything is gonna be. So you can see you get additional surface area there. If you need line wrenches, you can get some here at etrailer and this is what a standard box end wrench would look like, so make sure you are using the appropriate one. Once you get it loose enough, you can usually pull that off. Now again, we've already drained the fluid out so you can see there might be a little dribble there. You do want to prevent getting fluid on there, so if you've got a napkin you want to set down there, we've drained it so much already that we're good to go. But you may want to put a napkin down first 'cause brake fluid can be pretty corrosive to your paint and cause that to bubble and flake off there and stuff. So I wanna get that out of the way. Now the fitting that's here at the back of our actuator, we actually wanna remove this fitting. So we're gonna pull that fitting off of there. We're not gonna be using that fitting anymore because our new solenoid here that we're gonna install is gonna thread directly into it. We are gonna put a little bit of Loctite on it before we install it there to help seal it up and ensure it stays in place. This will thread into the back of our actuator. You do want to be careful and make sure that you're threading it in without cross threading it. So

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