HydraStar Electric Over Hydraulic Actuator Kit Installation - 2018 Grand Design

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How to Install the HydraStar Electric Over Hydraulic Actuator Kit on a 2018 Grand Design


Today on our 2018 Grand Design Reflection One fifty fifth wheel, you're gonna be taking a look, and I'm gonna show you how I installed the Hydrastar electric over hydraulic actuator kit for disc brakes, part number HBA16-252-82.This is what our actuator looks like when it's installed. You can see here I have it mounted in the front storage compartment of our trailer. So you want to make sure wherever you mount it, you leave your filler cap accessible so you can maintain your fluid level for your brakes. This actuator is gonna be powered through your seven pole plug on the back of your truck, it's gonna give you 1600 PSI, and it's gonna convert your electric signal over to hydraulic pressure to give you maximum braking power on your trailer. Once you've monitored your actuator, then the next thing you want to do is you want to mount your breakaway switch battery and charger, which is this black box here.A couple questions that may be asked is why you need a separate battery for your breakaway switch. While your trailer is being towed, your breakaway switch needs to have constant power.

Breakaway switch is used if the trailer becomes disconnected from the truck and it applies the brakes on the truck.Now if the truck is, or if the trailer is disconnected from the truck, because this is getting power from the seven pole plug on the truck, if it's disconnected, you're gonna lose power in this. Hence the reason why the breakaway switch needs to have constant power.Second question that may be asked is why can't you use the battery that's in the trailer Well a lot of times when your trailer sits in storage, the batteries in the trailer are gonna be dead. So by law, the breakaway switch has to have a separate battery power. One thing that's nice about this system is it's a proportional system, so it's gonna match the amount of braking pressure that you're applying in the truck. The other thing that's nice about this is you can use the override button on your brake controller in your truck to activate the brakes on the trailer in the case of an emergency without applying the brakes in the truck.A couple other things that I do want to mention about our actuator here.

This is gonna be your bleeder valve. This is gonna help get any of that air caught in your lines or help bleed your brake lines to make sure you get that maximum braking power. This is where you're gonna connect your line running to your brakes. This actuator will work for single axle or double axle and even triple axle trailers, however, with the triple axle trailer, if you're gonna use it for that, there are some additional parts you will need to pick up here at etrailer.com.The best place to mount the breakaway switch is on your inaudible 00:02:45 pin box. And you can see here we have it mounted on this side.

Typically it's mounted on the driver's side. This is gonna be a wire . This is gonna be your pin. A breakaway switch is gonna have two wires coming off of it. These are gonna have to be extended because these wires have to run to your actuator.

You can find extra wire here at etrailer.com if you don't have any, using part number 16-1-1. We happen to have some jacketed wire laying around, so that's what we used. You can see our red and our black wire. What we do is we ran it up, right above this panel, and you can see where our jacketed wire comes in. It runs over to the left and right down the side wall. My jacketed wire, I zip tied it right to this existing wiring, ran it right behind the battery, right over to this side.inaudible 00:03:34 our breakaway switch, we're gonna have two black wires as I mentioned. It doesn't matter which wire you hook up where. But what we're gonna hook though, is we're gonna hook the yellow wire to one of them. You're gonna have a blue wire that comes out of your breakaway switch battery charger and battery. That's gonna hook up to the other black wire on your breakaway switch. Now the blue wire out of your actuator, that's also gonna be hooked into your seven pole plug. That's gonna be for your break controller in your truck.So we flipped our line here into this front porter on our actuator, ran it straight out and drilled a hole into our frame ramp. We want to make sure that we do not bend or kink this line because it can break. You can see we've just taken some rubber hose to wrap around that line as it goes through our frame just to help protect it. You can see where we've come through our frame. My line is actually attached to my frame rail with self-tightening screws that come in the kit, and I've also picked up some wire loom clamps to help protect that line.And you can see I've just continued to attach it to my frame rail back to my brakes. You'll notice there's a big loop here, and the reason there's a big loop here is because these lines come pre-flared. And we don't want to cut them because then you have to re-flare that end. A lot of people are not gonna have that tool to flare it. So what we do is we loop it to take up the extra slack in the line. We want to make sure we don't bend it or put any sharp corners in it. So that's why it's bent and we ran it right back to our brakes. See where our line comes back here. And you can see our splitter here. This is our line coming in. This is gonna be the line going down to our front axle. This is gonna be the line going to our rear axle. This line here is gonna be going over to the other side of the trailer.Now with our line that runs across to the other side of the vehicle or other side of the trailer, you're gonna have another splitter over there that's gonna split your line to each of your disc brakes on that side. The next thing that comes in this kit is this rubber line here. It's gonna attach to your line and down to your actual disc brakes. The reason this is a rubber line is so that it allows movement for your axle. So when your axle is moving up and down, this line doesn't' kink. You're gonna have four of these. You're gonna have one for each brake. Each end is gonna have a threaded end on it, and it's gonna thread directly into your caliper.Our kit's gonna come with three different lines. You're gonna have a long line, a medium sized line and two shorter lines. Your long line's gonna come from your splitter or from your actuator back to your splitter. Medium sized line is gonna go from one side of the trailer to the other, and your short lines are gonna go from your splitter back to your rear axle on both sides. The end of our lines are threaded, and they thread directly into the back of our caliper. I'm gonna go ahead and show you how to do that now. It's a good idea to use line wrenches to do this because this is a soft metal. If you don't have line wrenches, you can find them here at etrailer.com. You can see this square piece here that's in the back of our caliper. That's what we're gonna be threading it into, and we're gonna hand thread it in first, and we'll take our line wrench. Line wrenches look like this. And what we don't want to do is we don't want to put a whole, whole lot of pressure on this, again, because this metal is a thinner metal. What we don't want is we don't want it to leak, so . Gonna get this snugged up, and you're gonna repeat that same process with the three remaining brake calipers.Now we're gonna go ahead and bleed our brakes. First thing we want to do is you want to take your cap off your actuator. You want to use dot three or dot four brake fluid. Go ahead and fill up your actuator, and we're gonna leave the cap off while we're bleeding our brakes. And this is gonna take two people to do it. What you want to have is you want to have someone at the brake and someone pulling the breakaway switch. We're gonna have two valves, we're gonna he one on the bottom and one on top, and we want to make sure we always want to use the one on the top.You see my bottle here. We have a clear tube, and when we open our valve, we want to, what we want to see is we want to see clear or we want to see fluid. We don't want to see any air bubbles. We're gonna start at the furthest one back from the actuator. Since our actuator is mounted at the front on the passenger side, we're gonna start with our back driver's side caliper. So what we're gonna do is we're gonna take this hose and we're gonna put it right on top of this valve here. We're gonna open it, we're gonna have somebody pull that breakaway switch. One thing to keep in mind is before they put the pin back in, once you get inaudible 00:08:28 of the fluid, you want to close that valve first and then have them put the pin back in.And you can see we have salad 00:08:37 fluid, we'll close it just like that. We're gonna repeat that same process with our three remaining calipers. Once you're done bleeding one caliper, you want to make sure you check your fluid in your actuator and you maintain that fluid level on the actuator, because if that runs dry, then you're gonna have to start all over.That'll do it for a look at an installation on a Hydrastar electric over hydraulic actuator kit for disc brakes, part number HBA16-252-82 on our 2018 Grand Design Reflection one fifty fifth wheel.


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