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SMI Stay-IN-Play DUO Braking System Installation - 2018 Chevrolet Spark

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How to Install the SMI Stay-IN-Play DUO Braking System on a 2018 Chevrolet Spark


Today on our 2018 Chevrolet Spark, we're going to be taking a look at. I'm going to show you how I installed the SMI Stay-In-Play duo, supplemental braking system. Part number SM99251. We've installed the Stay-In-Play duo on this vehicle. It's going to be one of five main components in inaudible 00:00:16 The other four are going to be y our base plate, your tow bar, your safety cables and your wiring.Now this braking system is going to be for an RV that has electric brakes. If your RV has air brakes, you're going to want to go with the Air Force One.

They're both going to install basically the same way. There are going to be five parts to this braking system.You're going to have the operating unit, the G Force controller, the actuator, the breakaway switch and the indicator light. Let's start with the operating unit. The operating unit, what that's going to do, that's going to do what it says. It operates the whole unit.

It's going to work all the parts consecutively or when it needs to. This is going to be a G Force controller, and it's going to allow you to turn the system on when you're ready to use it or when the vehicle is being flat towed, and off when you're not using it.This is also a proportional system so it's going to allow you to adjust the sensitivity to match the braking pressure in your RV. The fourth part of this braking system is going to be our actuator. It's going to mount directly to the brake pedal arm into a bracket that's mounted on the firewall. How this actuator works is through this air line, it's going to run to the operating unit.

When the car is being flat-towed, and the brakes are applied in the RV, the air pressure is going fill a cylinder, in turn applying the brake pedal.Our final component is going to be our indicator light. When the indicator light is activated, it will let you know that your brakes are being applied in your towed vehicle. Whether that is regular braking or if your breakaway switch has been pulled.Now that we've gone over the main features of this system, let me go over how I installed it. A couple of things before we start our installation. I would suggest getting some RTV Silicone, it's from Lock tite, part number LT37467.

inaudible 00:02:10 connectors. You'll probably need at least seven or eight of these. You'll probably get a pack of 10 of them. You're going to use part number DW05745, and they're 10 to 12 gauge. And one rubber grommet that looks like this. That's going to be part number A11GB.To start our installation, the first thing you want to do is you want to mount your operating unit. I have mine mounted, there's a frame rail that comes up and then goes across. There is two holes in this side of your frame rail that the two holes in the operating unit actually match up with. If you take the nuts and bolts, just make sure they're small enough to go through those two holes, and this inside here, or outside, front side of the frame rail is actually open so you can actually reach in there and put on the nuts. And you can see it's secured in place. It's not going to go anywhere.What we need to do next is you're going to drill a hole right here. That's going to come out into the inside of the vehicle, in the floorboard, underneath the carpet. You may need a longer drill bit to go through this way first, but we're going to finish it out with an 11/16ths drill bit, and we're going to do that from the inside. Once you get that drilled, you're going to take that rubber grommet, and you're going to put it inside of it. That's going to project your wiring when we feed it through from the metal.Next thing we want to do is mount your breakaway switch. There's a bracket already installed on the baseplate. Your breakaway switch is going to come with a nut, bolt and washer. We're going to take our orange and blue line, from our breakaway switch and we're going to wire it up to the battery. I went across, I went right behind the bumper beam, came up right back through here because it's all open. Here's my blue wire. Here's my orange wire and black wire.From the top of our operating unit, you're going to have a blue wire, a brown wire, a red wire and black wire. Your blue wire is going to connect to the blue wire coming from your breakaway switch. Coming out of your operating unit, you're going to have a brown wire, red wire, black wire and a blue wire. The blue wire coming out of the operating unit, you're going to tie it with the blue wire coming off of your breakaway switch. Going ahead and crimp on one of your inaudible 00:04:45 connectors. Your heat treat inaudible 00:04:47 connectors, but don't shrink it yet. We're going to be connecting a wire onto the other end.The brown wire, you're going to connect it with or tie it up with your orange and black wires that's coming from your breakaway switch. Go ahead and add your inaudible 00:05:06 connector. On the other end, you're going to add your fuse holder. It's going to look like that. My black and red wire coming off of my operating unit, we need to go inside your vehicle. What I did was I went around the battery, went down the back of the firewall, and I pushed it in through that grommet. Our air line tube here, from the top of our operating unit, you'll get an airline tube that comes like this. I went around and just followed where I took my red and black wire, around the back of the battery, down the firewall, and I went in the same grommet because it needs to be inside the vehicle.In the car, there's a little plastic ring like this, that holds your carpet in place, pull that off. We're going to fold down the carpet, just like that and you can see where my hole is. The black silicone is to fill that hole once you get everything put in. Next, while you're inside the vehicle, you want to mount your G Force controller. It's going to come with the two screws. They're just Phillips head screws. I mounted mine on this panel. You can see there's very limited space here so it's easier to take this panel off, and mount that on it and then put the panel back in place. Off the back of that you're going to have a white wire, a yellow wire, a green wire and a black and red wire. The black and red wire that you fed in from your operating unit are going to tie into the black and red wire coming off of your G Force controller.Next you're going to mount your indicator light. It's going to have an adhesive on it. You're going to take the red tape off, and you can see how I have installed it right on the back of the mirror. Here's the wire coming off of my indicator light. I just pushed it up inside my headliner, ran it across this A-pillar plastic cover here, I just popped off the end, tucked it underneath, pulled back the weather stripping here, just like this, and I just tucked my wire in all the way down. When I got down to here, there's a gap between this bottom channel and the dash, I just tucked it in, and came back behind it.You're going to have two wires coming off of your indicator light. There's going to be a black wire and a red wire. The black wire, you're going to connect to the black wire that you fed in from outside, coming from your operating unit. The red wire on your indicator light, you're going to extend it with the wire that you cut off from the G Force controller when you connected the two red wires, you're going to have one red wire that's going to be long. Connect that to the red wire, and you're going to feed that back through the grommet.Our red wire that we brought out is coming from our indicator light. You're going to connect that into the other end of the inaudible 00:07:59 connector that has your two blue wires on it. My yellow, green and white wire run out through the grommet, and I tied it to my wiring here. That's running back to my taillights. If you don't have the wiring kit for your taillights, you're going to need one. You're going to have wiring like this that's going to come in that kit. You're going to tie the yellow, green and white wire that you brought out from the inside, from your G Force controller, into this, except your white wire, you're going to add an extra length of wire about four foot, five foot maybe, onto one side. This is going to be going to a ground.Now when you do this, you can see how I have it over here. It's hard to do anything here so make sure when you do it, you leave yourself plenty of room that you can pull all of your wires over to the side here, in this large open space to make your connections and heat shrink your inaudible 00:08:59 Once you get that done, then you can pull all your wires tightly inside the vehicle and wrap them up and hide them. Then my white wire, I routed it up the same way I did my other ones, and you can see that body ground, that factory body ground right there. I added the ring terminal that comes in the kit, and put it on that ground right there.In your kit, you're going to get some inaudible 00:09:22 looks like this. You're going to have a T connect, that looks like this. Then you're going to have a check valve. One side is going to be a green-ish color, the other side is going to be black. What you're going to do is this line that's running back to your brake booster, you're going to cut it in half. You're going to take a little section, you can see this little section here, of the hose that you get, it's about three inches, and you're going to cut it.Once you cut that hose, you're going to put one end onto one end of your T connector. The green side of your check valve, you're going to put on the other end of that hose. You're going to take the other end of your T connector, you're going to feed it into the hose, going to the brake booster, the check valve, black side going toward the engine, you're going to put in the other side of the hose that was cut. On top of our operating unit, there's another check valve. You're going to take your airline or your vacuum line, and you're going to push it onto the top of that check valve. I just fed it right up underneath of my inaudible 00:10:32 here or plate, whatever you want to call it, came up behind and then went right into the bottom of my T connector.Next going to come inside, you're going to mount the actuator. You're going to mount it on your brake pedal arm. You don't want it down too low because you don't want to kick this in or hit it with your foot because it is plastic and you can break it. We don't want it up too high because we want it to work the brake pedal. You can see where I have it. This is about as high as we're going to be able to go with it. If we go any lower, we're getting close to our steering arm here, our shaft, and if we go too high, then it's not going to work your brake pedal the way it's supposed to.On the end of that, you're going to have a cable. On the end of the cable, you're going to have a little bracket that gets mounted to the firewall. You're going to have a large, self-tapping screw that comes in your kit. Mount that to the firewall. What you want to do is you want to mount this so that when this is the brake pedal is depressed, the back of this is in a straight line with the bracket that's on the firewall.That's where my bracket is mounted to my firewall. You can see when my brake pedal moves, the back of it moves straight to the bracket. We don't want this twisted or leaning too much because it puts too much pressure on one side of the actuator. We want to try to keep that as straight as possible.Airline tube that we ran off our operating unit in through the grommet, you can see I just routed it up. I actually went in front of my clutch here because this is a spring here, and I don't want it to get tangled up anywhere so I went in front. You can see I zip-tied it to this factory wiring and I ran right up along the dash, straight into the top of the actuator. You can see one of the reasons I zip-tied it is to pull this down just a little so that when the brake is pressed, it doesn't hit this. You can see it clears it right there.Now what we want to do is we want to set our inaudible 00:12:57 in place. We're not going to fully install it. We need to cut the grill out for a breakaway switch. You can see how I cut it out. You're going to get it set up, as close to being installed as possible or where it's going to go, and you're just kind of going to mark right along the edge of the grill. You can always push it into place, and if you need to shave off a little bit more, you can do that. Always cut off a little bit at a time until you get it where you want. That way, you don't have a big hole. You can see there, when I get it fully installed, it fits right in.Next thing we're going to do is we're going to test out our system. We're going to come inside to our G Force controller, and we're going to switch the toggle switch to the on position. We're going to go outside to the front of the vehicle and we're going to pull the breakaway switch.You can hear the operating unit turn on. If you watch the indicator light, mounted on the back of the mirror. Then we'll watch the actuator depress the brake pedal. inaudible 00:14:15 look an installation on the SMI Stay-In-Play duo, supplemental braking system, part number SM99251 on our 2018 Chevrolet Spark.


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